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WO2011080938A1 - ティシュペーパー製品用二次原反ロールの製造方法 - Google Patents

ティシュペーパー製品用二次原反ロールの製造方法 Download PDF

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Publication number
WO2011080938A1
WO2011080938A1 PCT/JP2010/062940 JP2010062940W WO2011080938A1 WO 2011080938 A1 WO2011080938 A1 WO 2011080938A1 JP 2010062940 W JP2010062940 W JP 2010062940W WO 2011080938 A1 WO2011080938 A1 WO 2011080938A1
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WO
WIPO (PCT)
Prior art keywords
tissue paper
continuous sheet
roll
chemical solution
chemical
Prior art date
Application number
PCT/JP2010/062940
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
裕介 椎木
拓也 奥岡
Original Assignee
大王製紙株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Priority to CN201080059458.4A priority Critical patent/CN102781298B/zh
Priority to KR1020127019835A priority patent/KR101748899B1/ko
Publication of WO2011080938A1 publication Critical patent/WO2011080938A1/ja

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/04—Multiple-step processes for making flat articles ; Making flat articles the articles being napkins, handkerchiefs, towels, doilies, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/02—Patterned paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/02—Patterned paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B31F2201/0764—Multi-layered the layers being nested

Definitions

  • the present invention relates to a method for producing a secondary roll for tissue paper products to be used in a multi-stand type interfolder.
  • Tissue paper boxed products are generally obtained by stacking a plurality of continuous tissue papers with an interfolder (folding facility) while stacking them, cutting them to a predetermined length, etc., and obtaining the tissue paper bundles. It is manufactured by storing in a storage box (tissue carton).
  • a primary web roll (generally also called a jumbo roll) is manufactured by making a thin paper in a papermaking facility and winding it. Then, this primary web roll is set on a ply machine, and a plurality of primary webs are produced.
  • the primary continuous sheet fed from the roll is overlapped and wound and slit (divided into the product width of the tissue paper product or a multiple of the width of the tissue paper product in the width direction) to produce a secondary raw roll made of a plurality of plies.
  • the secondary continuous sheet is fed out from the secondary web roll and fed to the folding mechanism, where it is stacked while being folded, and then cut into a predetermined length to form a tissue paper bundle, which is stored in a storage box.
  • a manufacturing method using such a multi-stand type interfolder has a higher number of folding mechanisms (usually 80 to 100) than a manufacturing method using other folding equipment, and is therefore highly productive. Has advantages.
  • tissue paper products coated with a chemical such as a moisturizing agent has been increasing.
  • various manufacturing methods and facilities disclosed in Patent Documents 5 to 7 below have been proposed.
  • Such tissue paper products are generally manufactured mainly by a rotary interfolder (for example, Patent Document 5 below).
  • the rotary type interfolder has a drawback in that productivity is low because folding and cutting are simultaneously performed in the direction perpendicular to the processing direction.
  • tissue paper products coated with chemicals using a manufacturing method that uses a multi-stand type interfolder, which has a higher processing speed than a rotary type interfolder.
  • a chemical solution coating step is provided separately from the manufacturing facility for the secondary roll for paper products) and the multi-stand type interfolder, there is a problem that a large equipment cost is required.
  • a separate chemical solution application process is provided, when producing tissue paper products that do not have a chemical solution applied on the same line, it is necessary to provide a separate line that avoids the chemical solution application process, and it is easy to switch the presence or absence of chemical application There was a problem that it was not possible.
  • a main problem of the present invention is a method for producing a secondary raw roll for tissue paper products having a chemical solution application step, and it is possible to prevent peeling and misalignment between layers of a laminated continuous sheet coated with a chemical solution. It is providing the manufacturing method of the secondary raw material roll for a certain tissue paper product.
  • a method for producing a secondary web roll for tissue paper products wherein a plurality of secondary web rolls for tissue paper products are continuously produced from the primary web roll, A lamination step in which a primary continuous sheet fed from a plurality of primary fabric rolls is laminated along the continuous direction to form a laminated continuous sheet; A contact embossing process for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; After the contact embossing step, a chemical solution applying step for applying a chemical solution to the laminated continuous sheet; A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, A tissue paper product comprising: a winding step of winding each slit continuous sheet coaxially to form a plurality of secondary rolls having a product width of the tissue paper product or a multiple of the width of the tissue paper product.
  • a number of secondary rolls for tissue paper products manufactured so as to have a product width of tissue paper products or multiple times the width of tissue paper products in the slit process in the manufacturing method according to the present invention are set in a multi-stand type interfolder at this latter stage.
  • the secondary continuous sheet is fed out from the secondary raw roll set in the multi-stand type interfolder, sent to the folding mechanism, stacked while being folded, and then cut into a predetermined length and the tissue paper Make a bundle and store it in a storage box.
  • medical solution is apply
  • the chemical solution coating step is preferably performed after the laminating step and before the slitting step. Because, if the chemical solution application step is before the lamination step, equipment for applying the chemical solution to each primary continuous sheet must be provided, while if after the slit step, the slit step In this case, the chemical solution is applied to the laminated continuous sheet divided into a plurality of layers, so that the chemical solution leaks from the slit, causing roll contamination and paper breakage. When the chemical solution application process is performed between the lamination process and the slit process, it is sufficient to prepare equipment for applying the chemical solution only to the laminated continuous sheet that is not divided by the slit process. There is little, and there is little paper break and operation is stable.
  • the manufacturing method of the secondary raw material roll for tissue paper products concerning this invention it is preferable to have a smoothing process of smoothing with a calendar.
  • a smoothing step it is possible to produce a secondary paper roll for tissue paper products with a smooth surface, and to prevent ply peeling of tissue paper products produced using this secondary paper roll. Can do.
  • a smoothing process is performed between a lamination process and a contact embossing process. If the smoothing step is before the laminating step, the effect of preventing ply peeling of the tissue paper product cannot be obtained.
  • the chemical coating method may be any known coating method such as dipping, spray coating, flexographic printing, and gravure printing.
  • the chemical solution is preferably applied by a gravure printing method or a flexographic printing method.
  • the gravure printing method and flexographic printing method can stabilize the coating amount even if the processing speed is high.
  • the flexographic printing method has an advantage that a wide range of chemical viscosity can be stably applied with one roll.
  • FIG. 14 It is a schematic diagram for demonstrating the derivation
  • FIG. It is a figure which shows the state which substituted the chemical
  • FIG. 1 An example of the manufacturing method of a primary fabric roll is demonstrated referring FIG.
  • the wet paper W that has passed through the wire part is placed on the bottom felt 111 and transferred, and thereafter, sandwiched between the top felt 110 and the bottom felt 111, between the top roll 112 and the bottom roll 113. Passed and squeezed. Thereafter, the wet paper web W squeezed is attached to the surface of the Yankee dryer 115 via the touch roll 116 while being placed on the top felt 110.
  • the wet paper W is dried by the Yankee dryer 115, peeled off by the doctor blade 117, and then wound up to be a primary raw roll JR.
  • a primary raw roll JR for example, dispersants, dry paper strength enhancers, wet paper strength enhancers, softeners, release agents, adhesives, pH adjusters such as caustic soda, antifoaming agents, preservatives, slime control agents, dyes , Etc. can be added as appropriate chemicals.
  • the smoothing process can be performed by the calendar means 118 after being peeled off by the doctor blade 117.
  • the production facility X3 (ply machine X3) for the secondary paper roll for tissue paper products according to the present invention includes at least two primary web rolls JR manufactured by the above-described manufacturing method or the like.
  • the ply means 51 which can be set as described above, is formed by laminating the primary continuous sheets (S11, S12 in the illustrated example) fed from these primary raw rolls JR along the continuous direction to form a laminated continuous sheet S2.
  • a contact embossing means 54 for providing contact embossing to the laminated continuous sheet S2 flowing from the ply means 51 is provided.
  • Means 53 are provided.
  • the chemical solution applying means 53 is followed by a plurality of cutters arranged in parallel, and the laminated continuous sheet S2 transferred from the chemical solution applying means 53 has a product width of tissue paper products or a multiple of the width.
  • the slit means 55 for slitting is arranged in the manner described above, and the laminated continuous sheet S2 slit by the slit means 55 is coaxially wound around the slit means 55 and the product width of the tissue paper product or a multiple of the width of the tissue paper product.
  • Winding means 56 for forming a plurality of secondary web rolls R is provided.
  • the winding means 56 has two winding drums 56A for guiding each slit continuous sheet S2 to the secondary raw roll R, and these two winding drums 56A are secondary.
  • the laminated continuous sheet S2 is guided in contact with the outer peripheral surface of the raw roll R.
  • One or more calender means 52 for calendering the laminated continuous sheet S2 may be provided in the production facility X3 for the secondary paper roll for tissue paper products.
  • the type of calendar in the calendar means 52 is not particularly limited, but is preferably a soft calendar or a chilled calendar for the purpose of improving the smoothness of the surface and adjusting the paper thickness.
  • a soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber, and a chilled calendar is a calendar made of a metal roll.
  • the number of calendar means 52 can be changed as appropriate. If there is a plurality of installations, it has the advantage that it can be sufficiently smoothed even if the processing speed is high.
  • one installation has the advantage that it can be installed even if the space is small.
  • two or more calendar means 52 are installed, they can be arranged side by side in the horizontal direction, the up-down direction, or the diagonal direction, and these installation directions may be combined.
  • the holding angle becomes smaller, so the processing speed can be increased, and when arranged side by side in the vertical direction, the installation space can be reduced.
  • the holding angle means an angle while the sheet is in contact as viewed from the roll axis center (a part of a circular arc of a cross section perpendicular to the axis) (hereinafter the same).
  • Paper making is also performed as control factors such as calendar type, nip line pressure, and number of nips in the calendar processing conditions, and these control factors are preferably changed as appropriate depending on the quality of tissue paper to be obtained, that is, paper thickness and surface properties.
  • the installation position of the calendar means 52 is not particularly limited, but it may be provided after the ply means 51 and before the contact embossing means 54 or after the chemical solution applying means 53 and before the slit means 55. it can.
  • the total chemical application amount on both sides is 1.5-5. It is a .0g / m 2, and preferably is a 2.0 ⁇ 4.5g / m 2, more preferably between 2.5 ⁇ 4.0g / m 2. If it exceeds 5.0 g / m 2 , the paper may be cut due to a decrease in paper strength or elongation, winding may occur when winding with a winding drum, or the quality may be too sticky. .
  • the application surface of the chemical solution is directed to the surface located on the inner side of the secondary raw roll R in the laminated continuous sheet S2 (the surface on the primary continuous sheet S11 side).
  • Application is good. In this way, there is a difference between the front and the back of the product, but it is less likely to cause winding slip.
  • the coating amount is 1.5 to 5.0 g / m 2 , preferably 2.0 to 4.5 g / m 2 , more preferably 2.5 to 4.0 g / m 2. .
  • the chemical solution applying means 53B for directly applying the chemical solution to the primary continuous sheet S11 is more than the other chemical solution applying means 53A.
  • the chemical solution shall be applied.
  • the ratio of the chemical application amount on both sides is 100: 0 to 60:40, preferably 75:25 to 60:40.
  • FIG. 20A is a cross-sectional view of the laminated continuous sheet S2 laminated on the two plies before the chemical solution application (cross-sectional view cut in parallel with the MD direction).
  • a difference is provided in the amount of the chemical solution on both surfaces, and a large amount of the chemical solution is applied to the primary continuous sheet S11 side in the drawing.
  • the laminated layers are integrated by contact embossing CE, and cut into the product width by the slit means 55 (FIG. 20B).
  • the laminated continuous sheet S2 is taken up by the take-up means 56 and is left to stand for infiltration of the chemical solution.
  • the primary continuous sheets S11 and S12 constituting the laminated continuous sheet S2 coated with the chemical solution by the chemical solution application unit 53 mainly extend in the MD direction.
  • the primary continuous sheet S11 to which more chemical solution is applied has a higher elongation rate than the other primary continuous sheet S12, but the primary continuous sheets S11 and S12 are fixed to each other by contact embossing CE. Wrinkles occur on the surface of the extended primary continuous sheet S11 (FIG. 20C).
  • a difference is also provided in the crepe rate of the laminated continuous sheet S2 to be laminated, and if a base paper having a high crepe rate is used for the primary continuous sheet S11, a difference may be caused in the elongation rate between the primary continuous sheet S11 and the primary continuous sheet S12. it can.
  • the crepe is formed by the difference between the dryer speed and the winding speed after the base paper is dried by the Yankee dryer 115 and peeled off from the Yankee dryer 115 by the doctor blade 117.
  • the shape of this crepe is adjusted by sticking the paper to the Yankee dryer 115, but since there is some variation in this sticking and the fiber raw material is not evenly distributed, There is some variation in the three-dimensional crepe shape. This variation becomes more prominent as the crepe rate increases.
  • the product tissue paper has a different bulk feeling unless the chemical solution is applied (FIG. 21 ( A)).
  • the primary continuous sheet S11 extends at a higher elongation rate than the primary continuous sheet S12. Since it is fixed in parallel with the MD direction (not shown), the primary continuous sheet S11 corrugates and the bulk of the laminated sheet increases. (FIG. 21 (B)).
  • the type of the chemical solution applying unit 53 is not particularly limited, but a printing method such as a gravure printing method or a flexographic printing method can be used.
  • the processing speed is 100 to 1000 m / min, preferably 350 to 950 m / min, particularly preferably. Is 450 to 950 m / min.
  • productivity is low, and when it is more than 1000 m / min, coating unevenness occurs and the chemical solution is likely to be scattered.
  • the number of gravure rolls is 40 to 160 lines, preferably 60 to 140 lines, particularly preferably 80 to 120 lines. If the number of lines is less than 40 lines, the amount of chemical solution scattered increases, whereas if the number of lines exceeds 160 lines, paper dust tends to be clogged.
  • the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, particularly preferably. Is 450 to 1000 m / min. If it is less than 100 m / min, the productivity is low, and if it is 1100 m / min or more, uneven coating occurs and the amount of chemical solution scattered increases.
  • the number of flexographic printing plate rolls is 10 to 60, preferably 15 to 40, and more preferably 20 to 35. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 60 lines, the paper dust tends to clog.
  • the number of anilox rolls is 10 to 300, preferably 25 to 200, and more preferably 50 to 100. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 300 lines, the paper dust tends to be clogged.
  • the anilox roll has a cell capacity of 10 to 100 cc, preferably 15 to 70 cc, particularly preferably 30 to 60 cc. If the cell capacity is less than 10 cc, a desired coating amount cannot be obtained. On the other hand, if the cell capacity is more than 100 cc, the amount of chemical solution scattered increases.
  • the flexographic printing method can stabilize the coating amount even when the processing speed is high, and can stably apply a wide range of chemical viscosity with a single roll.
  • a direct gravure coater or an offset gravure coater can be used, and when using the flexo printing method, a doctor chamber type (hereinafter simply referred to as a doctor chamber type) or 1 or A two-roll transfer type can be used.
  • One or a plurality of chemical solution applying means 53 using a printing method such as a gravure printing method or a flexographic printing method can be installed.
  • a plurality of chemical solution applying means 53 When a plurality of chemical solution applying means 53 are installed, they may be arranged in parallel in the horizontal direction, the vertical direction, or the oblique direction. Alternatively, these installation directions including the horizontal direction may be combined. Since the holding angle can be reduced by arranging them in the horizontal direction, the processing speed can be increased, and when they are arranged in the vertical direction, the installation space in the horizontal direction can be reduced.
  • the means (contact embossing means 54 and slit means 55 in the example of FIG. 11) arranged before and after the chemical solution applying means 53 are preferably arranged close to each other. By doing so, when manufacturing a tissue paper product to which no chemical solution is applied, the laminated continuous sheet S2 is directly transferred from the preceding stage to the subsequent stage of the chemical solution applying unit 53, and the laminated continuous sheet S2 is not passed through the chemical solution applying unit 53. Since it only needs to pass through, it is possible to easily switch the presence or absence of chemical application. For example, in the manufacturing equipment X3 for the secondary paper roll for tissue paper products shown in FIG. 11, when manufacturing the tissue paper products to which the chemical solution is not applied, as shown by a two-dot chain line in FIG. It is only necessary to transfer directly from the means 52 to the contact embossing means 54 and flow the laminated continuous sheet S2 without passing through the chemical solution applying means 53.
  • the chemical solution application unit 53A in the form of one of the doctor chambers has a doctor chamber 61A in which a chemical solution is placed facing a rotatable anilox roll 63A, and the anilox from the doctor chamber 61A.
  • the chemical solution is delivered to the roll 63A.
  • a printing plate roll 64A that is in contact with the anilox roll 63A and is also in contact with one surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63A to the printing plate roll 64A.
  • the chemical solution is applied from the printing plate roll 64A to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65A facing the printing plate roll 64A across the laminated continuous sheet S2. It has become.
  • medical solution application part 53A is located in the surface side of lamination
  • a supply pump (not shown) for applying a chemical solution to the doctor chamber 61A and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61A are installed in the doctor chamber 61A.
  • the chemical solution application section 53B in the form of the other doctor chamber has a doctor chamber 61B in which a chemical solution is placed facing the rotatable anilox roll 63B.
  • the chemical solution is delivered to the anilox roll 63B.
  • a printing plate roll 64B that is in contact with the anilox roll 63B and is also in contact with the other surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63B to the printing plate roll 64B.
  • the chemical solution is applied from the printing plate roll 64B to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65B facing the printing plate roll 64B across the laminated continuous sheet S2. It has become.
  • medical solution application part 53B is located in the other surface side of the lamination
  • a supply pump (not shown) for applying a chemical solution to the doctor chamber 61B and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61B are also installed in the doctor chamber 61B. .
  • the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
  • the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical applying unit 53B.
  • the total coating amount on both sides is 1.5 to 5 g / m 2
  • the coating amount on the outer peripheral surface of the secondary raw roll R that is a ply raw roll is set to be the secondary raw fabric.
  • the coating amount on the outer peripheral surface of the secondary raw roll R out of the total coating amount of the lotion agent on both sides of the paper is 50% when it is 20% or more of the whole.
  • the specific value varies within the above range because the optimum conditions differ depending on the balance between the slip and quality of the secondary raw roll R, the sheet thickness, the permeability of the lotion agent, and the transferability.
  • the flexographic printing method allows the plate to be made of resin and is elastic, so that even if there are some irregularities on the sanitary thin paper, it can be adjusted by the printing pressure. Wrinkles are difficult to enter.
  • the coating amount can be stabilized even when the processing speed is high, and a wide range of chemical viscosity can be stably applied with one roll.
  • the application is also performed when the lotion agent to be used as a chemical solution is applied at a coating amount within the range described below while the laminated continuous sheet S2 is set to 700 m / min or more, preferably at a speed of 900 m / min or more. Is uniform and the laminated continuous sheet S2 can be wound without meandering.
  • the following can be considered as the requirements of the chemical
  • a filter device for paper powder and air contained in the chemical solution circulating in the application device such as a chemical solution tank.
  • the chemical solution applying means 53 paper dust and the like are reduced, and it is also conceivable that the load on the filtration device is reduced.
  • a heater can be installed in the intermediate tank and piping connected to the doctor chambers 61A and 61B.
  • the chemical solution supply apparatus 100 is extruded from the storage tank 110 that stores the chemical solution L, the extrusion unit 120 that extrudes the chemical solution L in the storage tank 110, and the extrusion unit 120.
  • the doctor chamber 130 for storing the chemical liquid L, the drawing portion 140 for drawing a part of the chemical liquid L stored in the doctor chamber 130 into the tank 110, and the chemical liquid L supplied from the doctor chamber 130 are transferred to the surface of the laminated continuous sheet S2.
  • the chemical transfer unit 150 is configured to include a rotating unit 160 that wraps and rotates the laminated continuous sheet S2 around the circumferential surface, and the like. Therefore, the above-described doctor chambers 61A and 61B are the doctor chamber 130 in the present embodiment, and the above-described elastic rolls 65A and 65B are the rotating unit 160 in the present embodiment.
  • the storage tank 110 is a tank that stores the chemical liquid L therein, and an extrusion hose 121 of the extrusion unit 120 described later and a drawing hose 141 of the drawing unit 140 are inserted into the liquid layer.
  • the extruding unit 120 includes, for example, an extrusion hose 121 inserted into the storage tank 110, a supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies the chemical liquid L to the doctor chamber 130, and the chemical liquid L generated by the supply pump 122. And an adjustment valve 123 for adjusting the extrusion amount (flow rate).
  • the extrusion hose 121 is a hose having one end inserted into the storage tank 110 and the other end connected to the introduction part 132 of the doctor chamber 130, and functions as a flow path for transporting the chemical liquid L in the storage tank 110.
  • the supply pump 122 is attached to the extrusion hose 121 and is driven by a drive motor (not shown) to pressurize and feed the chemical L in the storage tank 110 to the doctor chamber 130.
  • the adjustment valve 123 adjusts the flow rate of the chemical liquid L pushed out by the supply pump 122 by opening and closing the valve.
  • the pull-in unit 140 includes a pull-in hose 141 inserted into the storage tank 110 and a suction pump 142 that pulls the chemical L into the storage tank 110.
  • the draw-in hose 141 is a hose having one end inserted into the storage tank 110 and the other end connected to a lead-out part 133 of a doctor chamber 130 described later, and transports the chemical L derived from the lead-out part 133 to the storage tank 110. Functions as a flow path.
  • the suction pump 142 is attached to the drawing hose 141 and is driven by a drive motor (not shown) to suck the chemical liquid L led out from the lead-out unit 133 and discharge it to the storage tank 110 (outside).
  • the supply pump that applies the chemical liquid to the doctor chambers 61A and 61B described above is the supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies it to the doctor chamber 130 in this embodiment.
  • the discharge supply pump for returning the chemical solution from the doctor chambers 61A and 61B is the suction pump 142 that draws the chemical solution L into the storage tank 110.
  • the doctor chamber 130 is disposed adjacent to an anilox roll 151 to be described later, and includes a main body part 131 that stores the chemical L, an introduction part 132 that connects the extruding part 120 and the main body part 131, a retracting part 140, and a main body part 131. And a derivation unit 133 that connects the two.
  • the main body portion 131 is a main body portion of the doctor chamber 130 and includes a storage portion 131a and blades 131b and 131c.
  • the storage part 131 a is open at the end on the anilox roll 151 side, is connected to the introduction part 132 and the lead-out part 133, and supplies the chemical solution L stored inside to the anilox roll 151.
  • a part of the chemical liquid L introduced into the storage part 131a from the introduction part 132 is led out through the lead-out part 133 so that the supply amount to the anilox roll 151 is constant.
  • the above-described anilox rolls 63A and 63B are anilox rolls 151 in the present embodiment.
  • the blades 131b and 131c are provided so as to come into contact with the anilox roll 151, and perform the throttling of the chemical liquid L in a state of being pressed against the anilox roll 151.
  • the introduction part 132 is a tubular joint that has one end connected to the main body part 131 and the other end connected to the extrusion hose 121 of the extrusion part 120, and connects the extrusion part 120 and the main body part 131.
  • the chemical liquid L thus made can be introduced into the storage part 131 a of the main body part 131.
  • the lead-out part 133 is configured to include a joint 133a, a hole 133b, and a tube 133c.
  • the joint 133 a is a tubular joint that has one end connected to the main body portion 131 and the other end connected to the drawing hose 141 of the drawing portion 140 to connect the drawing portion 140 and the main body portion 131.
  • the hole 133b is an opening formed on the upper surface of the joint 133a and having a predetermined diameter. That is, since the hole 133b is provided in the joint 133a, the chemical liquid L in the joint 133a comes into contact with the outside air. Therefore, even when the chemical liquid L is circulated by discharging a part of the chemical liquid L introduced from the introduction part 132 (derived from the outlet part 133) and circulating the chemical liquid L, the hole 133b causes the suction of the chemical liquid L. Since the chemical liquid L comes into contact with the outside air and the internal pressure can be brought close to the external pressure, fluctuations in the internal pressure in the doctor chamber 130 can be suppressed.
  • the hole 133b may be formed on the upper surface of the main body 131 so as to communicate with the storage portion 131a, for example, as long as the internal pressure fluctuation in the doctor chamber 130 is suppressed.
  • the tube 133c is a transparent or translucent tube-like member having a lower end connected to the hole 133b and extending upward. Therefore, when discharging a part of the chemical liquid L introduced from the introduction part 132 and circulating the chemical liquid L, it is visually confirmed whether the chemical liquid L flows into the tube 133c through the hole 133b. Can do. That is, when the inflow into the tube 133c is confirmed, the amount of the chemical liquid L stored in the storage portion 131a is excessive (the chemical liquid L is in an oversupply state with respect to the anilox roll 151). ) Therefore, the user who has visually confirmed the excessive state can solve the excessive state by, for example, adjusting the extrusion amount (flow rate) of the chemical liquid L by operating the adjustment valve 123. . Since the tube 133c is hollow and the upper end side is in contact with the outside air, the operation of the hole 133b is not offset.
  • the chemical transfer unit 150 includes, for example, an anilox roll 151 to which the chemical solution L is supplied from the doctor chamber 130, and a printing plate roll 152 provided between the anilox roll 151 and a rotation unit 160 described later.
  • the anilox roll 151 is provided so as to come into contact with the blades 131b and 131c of the doctor chamber 130, and is configured such that the chemical liquid L supplied from the opening of the storage portion 131a of the doctor chamber 130 is adsorbed on the peripheral surface. Further, since the anilox roll 151 has a cylindrical shape and is configured to be rotatable about an axis orthogonal to the XY plane, the chemical liquid L adsorbed on the peripheral surface as described above is rotated by the printing plate roll. 152 can be transferred.
  • the printing plate roll 152 has a cylindrical shape whose peripheral surface is made of a rubber material, and the peripheral surfaces (points P1 and P2 shown in FIG. 14) are wound around the anilox roll 151 and the rotation unit 160 (the periphery of the left and right ends).
  • the continuous sheet S2) is provided so as to contact the peripheral surface of the continuous sheet S2), and is configured to be rotatable around an axis orthogonal to the XY plane. Therefore, the plate roll 152 rotates in the r2 direction when the rotating portion 160 that contacts the left end rotates in the r1 direction, and rotates the anilox roll 151 that contacts the right end in the r1 direction.
  • the printing plate roll 152 can acquire the chemical liquid L adsorbed on the peripheral surface of the anilox roll 151 at the point P2, transport it to the point P1 by rotation in the r2 direction, and transfer it to the laminated continuous sheet S2. it can. Therefore, even if the chemical liquid L adsorbed by the anilox roll 151 remains in a layered manner on the peripheral surface of the anilox roll 151, the chemical liquid L is transferred to the peripheral surface of the printing plate roll 152, so that the chemical liquid is applied to the laminated continuous sheet S2. L can be transferred uniformly.
  • the rotation unit 160 is provided adjacent to the printing plate roll 152, and rotates around an axis orthogonal to the XY plane (for example, r1 direction in FIG. 14) when a driving force is applied from a motor (not shown) or the like. It is a cylindrical member that is configured to be capable of gripping the laminated continuous sheet S2 on the peripheral surface. Therefore, the rotating unit 160 rotates in the r1 direction so as to wind the supplied laminated continuous sheet S2 around the peripheral surface and rotate the printing plate roll 152 and the anilox roll 151 to convey them to the point P1 position. At the time, the chemical liquid L can be transferred from the printing plate roll 152.
  • the rotation direction of the rotation unit 160 is the r1 direction in FIG.
  • the rotation unit 160 may of course be configured to rotate in the r2 direction.
  • the anilox roll 151 and the printing plate roll 152 rotate in the directions opposite to those in FIG. 14 (that is, the anilox roll 151: r2 direction, the printing plate roll 152: r1 direction).
  • the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
  • the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
  • the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 through the outlet part 133.
  • the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
  • the storage tank 110 that stores the chemical liquid L, and the extrusion liquid 121 stored in the main body 131 of the doctor chamber 130 are used to store the chemical liquid L stored in the storage tank 110.
  • a suction pump 142 that sucks the chemical liquid L stored in the main body 131 of the doctor chamber 130 and discharges it to the storage tank 110 (external) via the pull-in hose 141.
  • the chamber 130 connects the extrusion hose 121 and the main body 131, connects the introduction portion 132 for introducing the chemical L supplied by the supply pump 122 into the main body 131, and connects the drawing hose 141 and the main body 131.
  • a tubular joint 133a for leading out a part of the chemical liquid L introduced into the main body 131 is provided.
  • a detecting section 133 has a configured to include a hole 133b on the upper surface of the joint 133a of the outlet portion 133.
  • the hole 133b is provided on the upper surface of the joint 133a of the outlet portion 133. Therefore, when a part of the chemical liquid L in the main body 131 is discharged using the suction pump 142, the chemical liquid L comes into contact with the outside air through the hole 133 b, and therefore, the inside of the doctor chamber 130 caused by the operation of the suction pump 142. Internal pressure fluctuation can be suppressed. Further, in the present invention, since the suction pump 142 is used when part of the chemical liquid L is discharged, there is no need for a flow path for the natural dropping of the chemical liquid L, and the installation position of the tank 110 is also a special doctor chamber 130. It is not limited to the upper part or the like.
  • the chemical solution supply device 100 is a chemical solution supply device 100 that can suppress the internal pressure fluctuation in the doctor chamber 130 when sucking out the chemical solution L from the doctor chamber 130 and can be installed in a space-saving as much as possible.
  • the doctor chamber 130 includes a transparent or translucent tube 133c having a lower end connected to the hole 133b and extending upward.
  • the user who has visually confirmed the excessive state can solve the excessive state by, for example, operating the adjustment valve 123 to adjust the flow rate of the chemical liquid L. Further, by providing the tube 133c with the upper end (free end) facing downward, it is possible to prevent foreign matters such as paper dust from entering the hole 133b.
  • the chemical solution supply apparatus 200 of the third embodiment in the doctor chamber format will be described with reference to FIG.
  • the chemical solution L is oversupplied to the anilox roll 151 by visually confirming the inflow of the chemical solution L into the tube 133c connected to the hole 133b.
  • the chemical solution supply apparatus 200 according to the present embodiment is configured to automatically determine whether or not the state has been reached and to notify the user of the determination result.
  • differences from the doctor solution type embodiment 100 of the chemical solution supply apparatus 100 will be mainly described, and the same components are denoted by the same reference numerals and description thereof will be omitted. .
  • the lead-out part 233 of the present embodiment includes a joint 133a, a hole 133b, a cylindrical part 133d provided above the hole 133b, and a sensor part attached to the cylindrical part 133d. 133e.
  • the cylindrical part 133d is a cylindrical member whose upper end is fixedly connected to the peripheral surface of the hole 133b by welding or the like and extends upward.
  • the sensor unit 133e includes a sensor 133f provided in the cylindrical portion 133d, and a notification unit 133g attached to the sensor 133f and performing notification in conjunction with detection of the sensor 133f.
  • the sensor 133f includes, for example, a light emitting element (not shown) that emits light toward the detected object, and a light receiving element (not shown) that receives the reflected light from the detected object, and reflects the reflected light from the light receiving element. Based on the amount of received light, the sensor detects whether the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position (y1 shown in FIG. 16) where the sensor 133f is provided.
  • the notification unit 133g is a speaker or the like, and when the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, The user is notified by voice.
  • the sensor 133f determines whether or not the chemical liquid L flowing into the cylindrical part 133d has reached the height position. By detecting, it is possible to determine whether or not the amount of the chemical liquid L stored in the storage unit 131a is excessive (the chemical liquid L is in an excessive supply state with respect to the anilox roll 151). And, when the excessive state is reached, the user can know the fact by the notification unit 133g, for example, by operating the adjustment valve 123 to adjust the extrusion amount (flow rate) of the chemical liquid L, It becomes possible to eliminate the excessive state. Since the cylindrical portion 133d is hollow and the upper end side is in contact with the outside air, the action of the hole 133b is not offset.
  • the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
  • the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
  • the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 via the outlet part 233.
  • the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification portion 133g notifies the user.
  • the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
  • the doctor chamber 130 has a cylindrical cylindrical portion 133d that has a lower end connected to the peripheral surface of the hole 133b and extends upward, and a cylindrical shape.
  • a sensor 133f that detects whether the height of the chemical liquid L that is provided in the portion 133d and flows into the cylindrical portion 133d has reached a predetermined height position (a height position where the sensor 133f is provided), and a sensor 133f
  • a notification unit 133g is configured to notify when it is detected that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the predetermined height position.
  • the chemical solution supply device 200 the same effect as the chemical solution supply device 100 is exhibited, and when the chemical solution L is circulated, the chemical solution L is applied to the anilox roll 151 by the sensor 133f and the notification unit 133g. It is possible to automatically determine whether or not the battery has reached an oversupply state, and to notify the user of the determination result, so that the burden on the user himself to perform the state determination is reduced.
  • the chemical solution supply apparatus 300 according to the fourth embodiment in the doctor chamber format will be described with reference to FIG.
  • the opening amount of the hole 133b is configured to be a fixed value, but in the chemical solution supply device 300 of the present embodiment, The opening amount can be adjusted.
  • differences from the chemical solution supply apparatus 100 of the doctor chamber type embodiment 2 and the chemical solution supply apparatus 200 of the embodiment 3 will be mainly described. Reference numerals are assigned and description is omitted.
  • the lead-out part 333 of the present embodiment includes a joint 133a, a cylindrical part 133d, a sensor part 133e, and an adjustment part 133h attached to the cylindrical part 133d.
  • the adjusting unit 133h is, for example, a needle valve, and includes a hole 133j as an opening formed on the upper surface of the joint 133a, and a valve main body 133i that adjusts the opening amount of the hole 133j.
  • the hole 133j has a shape in which an opening having a predetermined diameter is surrounded by an orifice.
  • the valve body 133i is disposed above the opening of the hole 133j, and includes a needle shaft (not shown) whose tip is tapered and can be moved up and down.
  • the needle shaft is moved up and down to change the orifice of the hole 133j. It is comprised so that the opening amount of the hole 133j can be adjusted according to the opening degree at the time of contacting.
  • the opening amount of the hole 133j can be adjusted by the adjusting unit 133h, when the chemical liquid L is circulated, the opening amount of the hole 133j is changed according to the amount of fluctuation of the internal pressure in the doctor chamber 131. Can be adjusted appropriately. Therefore, for example, when the sensor part 133e detects that the height of the chemical liquid L flowing into the cylindrical part 133d has reached the height position where the sensor 133f is provided, the adjustment liquid 123 is operated to operate the chemical liquid L. In addition to coping with adjusting the amount of extrusion, the adjustment of the opening amount of the hole portion 133j by the adjusting portion 133h increases the air bleeding ability by the hole portion 133j (expands the contact area with the outside air).
  • the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
  • the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
  • the suction pump 142 is driven, and a part of the chemical L in the storage part 131a is discharged toward the storage tank 110 through the lead-out part 333 and circulated.
  • the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification unit 133g notifies the user. In such a case, it can be dealt with by operating the adjusting valve 123 or adjusting the opening amount of the hole 133j by the adjusting portion 133h.
  • the doctor chamber 130 includes the adjustment unit 133h that adjusts the opening amount of the hole 133j.
  • the opening amount of the hole 133j can be adjusted by the adjusting unit 133h.
  • the internal pressure fluctuation in the doctor chamber 130 can be more suitably suppressed by appropriately adjusting the opening amount of the hole 133j in accordance with the internal pressure fluctuation amount in the doctor chamber 131.
  • the doctor chamber 130 has a structure including only one introduction portion 132 connected to the extrusion hose 121 and one introduction portion 132 connected to the extrusion hose 121.
  • FIG. It is good also as a structure like each example shown in.
  • the doctor chamber 130 in the width direction D near the left and right ends of the doctor chamber 130 formed with a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in each location. And it is also set as the structure where the one lead-out part 133 connected with the drawing hose 141 exists in the center part of this doctor chamber 130.
  • FIG. 18A the doctor chamber 130 in the width direction D near the left and right ends of the doctor chamber 130 formed with a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in each location. And it is also set as the structure where the one lead-out part 133 connected with the drawing hose 141 exists in the center part of this doctor chamber 130.
  • the two extrusion hoses 121 are connected to the two introduction portions 132, respectively, and the chemical solution L is supplied from the vicinity of the left and right ends of the doctor chamber 130.
  • the fresh chemical solution L can be supplied into the doctor chamber 130 on average, and the remaining chemical solution L is led out from the doctor chamber 130 from the central outlet unit 133.
  • the doctor chamber 130 is formed in a wide rectangular shape and is formed in a wide rectangular shape along the anilox roll 151 that rotates about the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in the location and the location of a center part, respectively. And it is also set as the structure where the two derivation
  • two lead-out parts 133 are arranged between the three introduction parts 132, respectively, and the three extrusion hoses 121 each have three introduction parts 132.
  • the doctor chamber 130 has an equal interval along the width direction D in which the outer frame is formed in a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. And it is set as the structure which has the introducing
  • the chemical liquid L is supplied from the extrusion hose 121 to the plurality of introduction portions 132 arranged along the width direction D of the doctor chamber 130, and each of the introduction portions 132 is provided.
  • the surplus chemical liquid L is led out from the doctor chamber 130 from a plurality of the outlets 133 adjacent to each other. Therefore, also in this example, the fresh chemical liquid L from the storage tank 110 can be supplied into the doctor chamber 130 on average, and the surplus chemical liquid L from the derivation unit 133 is led out from the doctor chamber 130.
  • an air filter may be installed on the upper portion of the hole 133b so as to prevent foreign matters such as paper dust from entering the hole 133b.
  • the hole 133b may be provided on the side surface of the main body 131 as long as it is above the liquid level of the chemical liquid L in the reservoir 131a.
  • an anilox roll 63A is rotatably installed in contact with the squeezing roll 62A outside the chemical tank 66A, and the printing plate roll 64A in contact with the anilox roll 63A and in contact with one surface of the laminated continuous sheet S2 is rotatable.
  • the pressure is applied to the laminated continuous sheet S2 by the elastic rolls 65A that are opposed to each other with the laminated continuous sheet S2 interposed therebetween.
  • the chemical solution application portion 53A is positioned on the surface side of the laminated continuous sheet S2 that faces a roller 54A of a contact embossing means 54 described later and also faces the winding drum 56A.
  • the chemical application unit 53B in the other flexographic printing format is rotatably installed while a squeeze roll 62B as a dip roll is immersed in a chemical tank 66B containing the chemical. ing.
  • an anilox roll 63B is rotatably installed in contact with the squeeze roll 62B outside the chemical tank 66B, and a printing plate roll 64B that is in contact with the anilox roll 63B and in contact with the other surface of the laminated continuous sheet S2 is also provided.
  • Pressure is applied to the laminated continuous sheet S2 with the elastic roll 65B that is rotatably installed and is opposed to the laminated continuous sheet S2.
  • the chemical solution application portion 53B is positioned on the other surface side of the laminated continuous sheet S2 that is not opposed to the roller 54A and is also not opposed to the winding drum 56A.
  • the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
  • the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical applying unit 53B.
  • the total coating amount on both sides is set to 1.5 to 5 g / m 2 as described above, and the coating amount on the outer peripheral surface of the secondary original roll R which is a ply original roll is set to the secondary original roll R
  • the coating amount on the outer peripheral surface of the secondary raw roll R is 20% or more and less than 50% of the total coating amount of the lotion agent on both sides of the paper.
  • the specific value varies within the above range because the optimum conditions differ depending on the balance between the slip and quality of the secondary raw roll R, the sheet thickness, the permeability of the lotion agent, and the transferability.
  • the plate since the plate is made of resin using the flexo type and is elastic, it can be adjusted by the printing pressure even if there are some irregularities in the laminated continuous sheet S2, so that it is like gravure printing. Wrinkles are less likely to enter the laminated continuous sheet S2 than when applied with a simple metal roll.
  • the coating amount can be stabilized even at high processing speeds, and a wide range of chemical viscosity can be stably applied with a single roll. become able to.
  • the continuous lotion sheet S2 is conveyed at a speed of 700 m / min or more and the lotion agent used as a chemical solution is applied at an application amount of 1.5 g to 5 g / m 2 , the application is uniform.
  • the laminated continuous sheet S2 can be wound without meandering.
  • the following requirements can be considered as the requirements of the accompanying chemical solution applying means 53.
  • a paper dust or air filtration device contained in the chemical solution circulating in the coating device such as the chemical solution tanks 66A and 66B
  • a doctor blade (not shown) may be provided for the anilox rolls 63A and 63B.
  • the chemical solution is scattered from the anilox rolls 63A and 63B.
  • the doctor blade has to be maintained or replaced.
  • the one-roll transfer format in the flexographic printing method is obtained by omitting the squeezing rolls 62A and 62B from the flexo two-roll transfer format described above.
  • the anilox rolls 63A and 63B are rotatably installed while being immersed in the chemical liquid tanks 66A and 66B, respectively.
  • a doctor blade (not shown) for scraping off the chemical solution on the surfaces of the anilox rolls 63A and 63B may be installed on the anilox rolls 63A and 63B.
  • Such a flexo 1-roll transfer format has the advantage that the maintenance is relatively easy, and the advantage that the state of contamination of the blades and foreign matters such as paper dust in the chemical solution can be easily observed.
  • the viscosity of the chemical solution to be applied is 1 to 700 mPa ⁇ s at 40 ° C. from the viewpoint of high-speed processing. More preferably, it is 50 to 400 mPa ⁇ s (40 ° C.). If it is less than 1 mPa ⁇ s, the chemical solution is likely to scatter on rolls such as anilox roll, printing plate roll, and gravure roll, and conversely if it is greater than 700 mPa ⁇ s, it is difficult to control the amount of application to each roll or continuous sheet.
  • the components are 70 to 90% polyol, 1 to 15% moisture, and 0.01 to 22% functional chemicals.
  • Polyols include polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
  • Functional agents include softeners, surfactants, inorganic and organic fine particle powders, oily components, and the like. Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied. Inorganic and organic fine particle powders have a smooth surface.
  • the oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.
  • a functional agent one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc.
  • a moisturizing agent such as any combination can be added.
  • Deodorants such as flavors, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc.
  • An agent can be appropriately blended.
  • a polyhydric alcohol such as glycerin or propylene glycol
  • the temperature at the time of applying the chemical solution is preferably 30 ° C. to 60 ° C., preferably 35 ° C. to 55 ° C.
  • the production facility X3 for the secondary paper roll for tissue paper products can be provided with contact embossing means 54 for imparting contact embossing to the laminated continuous sheet S2.
  • a receiving roll 54B which is a metal roll or an elastic roll, and a metal, hard roller 54A having a fine convex portion 54C on the surface have a predetermined pressure.
  • the outer peripheral surfaces are in contact with each other, and are installed so as to be rotatable.
  • the laminated continuous sheet S2 is conveyed while sandwiching the laminated continuous sheet S2 between the convex portion 54C and the receiving roll 54B.
  • line-shaped contact embossing CE for preventing delamination along the continuous direction of the laminated continuous sheet S2 is applied to the laminated continuous sheet S2.
  • the winding means 56 mentioned above winds up the lamination
  • the contact embossing CE By providing the contact embossing CE in this way, delamination of the laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets (S11, S12 in the illustrated example) is prevented.
  • the contact embossing CE is formed so as to be positioned on both sides in the width direction of the tissue paper product so that the end portion of the tissue paper product is hardly delaminated.
  • a metal and hard roller 54A having a fine convex portion 54C on the surface is used as a roller, but a line-shaped joint that prevents delamination from the laminated continuous sheet S2.
  • a roller having a fine needle-like member on the surface can be used as the roller.
  • the means for joining is not limited to the above example, and the tip shape of the convex portion may be a point, square, rectangular, circular, elliptical shape, etc. A tip having a slender linear shape or a thin and slanting linear shape may be used as the roller.
  • the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced.
  • the protrusions in a row and providing contact embossing continuously, It is also conceivable to arrange the parts in two or more rows. Then, a plurality of groups in which convex portions are arranged so as to provide a plurality of rows of contact embossing closely may be arranged to provide a plurality of contact embossing groups.
  • the raw material pulp of primary continuous sheet S11, S12 is not specifically limited, According to the use of tissue paper products, an appropriate raw material pulp can be selected and used. Examples of the raw material pulp include wood pulp, non-wood pulp, synthetic pulp, and waste paper pulp.
  • ground pulp GP
  • SGP stone grand pulp
  • RGP refiner ground pulp
  • PGW pressure type Ground pulp
  • TMP thermomechanical pulp
  • CGP chemithermomechanical pulp
  • BCTMP bleached chemithermomechanical pulp
  • MP chemical mechanical pulp
  • SCP chemical pulp
  • KP kraft pulp
  • LKP hardwood bleached kraft pulp
  • NKP softwood bleached kraft pulp
  • SP sulfite pulp
  • DP dissolved pulp
  • CP nylon, rayon, polyester, polyvinyl alcohol Synthetic pulp made from (PVA) etc., deinked pulp (DIP), waste paper pulp such as waist pulp (WP), waste pulp (TP), cotton, flax, hemp, jute, manila hemp, ramie etc.
  • DIP deinked pulp
  • WP waist pulp
  • TP waste pulp
  • cotton flax, hemp, jute, manila hemp, ramie etc.
  • One or several types can be appropriately selected and used from rag pulp, straw pulp, esparto pulp, bagasse pulp, bamboo pulp, kenaf pulp, and other auxiliary pulps such as bast pulp.
  • the raw material pulp is preferably a blend of NBKP and LBKP.
  • the primary continuous sheets S11 and S12 have a basis weight according to JIS P 8124 of 10 to 25 g / m 2 , preferably 12 to 20 g / m 2, and more preferably 13 to 16 g / m 2 .
  • the basis weight is less than 10 g / m 2 , it is preferable in terms of softness, but an appropriate strength cannot be ensured.
  • the basis weight exceeds 25 g / m 2 , it becomes too hard and the touch is deteriorated.
  • the paper thickness (measured with a Peacock manufactured by Ozaki Seisakusho) is 80 to 250 ⁇ m, preferably 100 to 200 ⁇ m, more preferably 130 to 180 ⁇ m per ply.
  • the primary continuous sheets S11 and S12 preferably have a crepe rate of 10 to 30%, more preferably 12 to 25%, and particularly preferably 13 to 20%.
  • the crepe rate is less than 10%, it becomes a tissue paper product that is easy to break during processing and has little stretch and is not stiff.
  • the crepe rate is more than 30%, it is difficult to control the tension of the sheet at the time of processing, and the paper tends to be cut off, and wrinkles occur after production, resulting in a poor-looking tissue paper product.
  • the primary continuous sheets S11 and S12 have a dry tensile strength (hereinafter also referred to as dry paper strength) specified in JIS P 8113 of 2 to 200 p-200 cN / 25 mm, preferably 250 to 600 cN / 25 mm.
  • the lateral direction is preferably 300 to 600 cN / 25 mm, while the transverse direction is 100 to 300 cN / 25 mm, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm with two plies. If the dry tensile strength of the base paper is too low, troubles such as paper breakage and elongation at the time of production and use are likely to occur, and if it is too high, the touch becomes stiff when used.
  • paper strengths can be adjusted by a known method.
  • a dry paper strength enhancer is internally added (added to a stage before the dryer part, for example, pulp slurry) to reduce pulp freeness (for example, about 30 to 40 ml).
  • a method of increasing (for example, 50% or more) the NBKP compounding ratio can be appropriately combined.
  • the dry paper strength agent starch, polyacrylamide, CMC (carboxymethyl cellulose) or a salt thereof such as sodium carboxymethyl cellulose, carboxymethyl cellulose calcium, carboxymethyl cellulose zinc and the like can be used.
  • the wet paper strength agent polyamide polyamine epichlorohydrin resin, urea resin, acid colloid / melamine resin, thermal crosslinkability imparting PAM and the like can be used.
  • the addition amount can be about 5 to 20 kg / t by weight ratio to the pulp slurry. Further, when the dry paper strength agent is internally added, the addition amount can be about 0.5 to 1.0 kg / t in terms of the weight ratio to the pulp slurry.
  • the laminated continuous sheet S2 is laminated to form a laminated continuous sheet S2 (lamination process), and the contact embossing means 54 performs line-shaped contact embossing to prevent delamination or misalignment between the layers (contact embossing process).
  • a chemical solution is applied to the laminated continuous sheet S2 by the pair of chemical solution applying means 53 (chemical solution applying step), and the laminated continuous sheet S2 is made the product width of the tissue paper product or a multiple thereof by the slit means 55.
  • the laminated continuous sheet S2 slit in the slit process is wound up coaxially.
  • a plurality of secondary master roll R of product width or a multiple width of tissue paper products are formed by the winding means 56.
  • the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, more preferably 450 to 1000 m. / Min. If it is less than 100 m / min, the productivity is low. On the other hand, if it exceeds 1100 m / min, the frequency of the laminated continuous sheet S2 is increased, and the chemical solution application process does not transfer the chemical solution of the plate roll or anilox roll. Since it tends to be stable, uneven coating may occur.
  • Multi-stand type inter folder A large number of secondary raw rolls R manufactured by the manufacturing equipment and manufacturing method for secondary paper rolls for tissue paper products described above are set in a multi-stand type interfolder, and the secondary raw rolls R are set to the secondary raw rolls R. A tissue paper bundle is manufactured by unfolding and folding the next continuous sheet.
  • the multi-stand type interfolder will be described.
  • FIG. 2 and 3 show an example of the multi-stand type interfolder.
  • Reference numeral 2 in the figure denotes secondary raw rolls R, R... Set on a secondary raw roll support portion (not shown) of the multi-stand type interfolder 1.
  • the secondary raw rolls R, R... Are set side by side in a direction (the horizontal direction in FIG. 2 and the front-to-back direction in FIG. 3) perpendicular to the illustrated plane.
  • Each secondary raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.
  • the continuous belt-like secondary continuous sheets 3A and 3B unwound from the secondary raw roll R are guided to guide means such as guide rollers G1 and G1 and sent to the folding mechanism section 20.
  • the folding mechanism part 20 is provided with the folding plate group 21 in which the required number of folding plates P, P ... are arranged in parallel as shown in FIG.
  • guide rollers G2, G2 and guide round bar members G3, G3 for guiding a pair of continuous secondary continuous sheets 3A or 3B are respectively provided at appropriate positions.
  • a conveyor 22 is provided that receives and conveys the laminated band 30 that is stacked while being folded.
  • a folding mechanism using this type of folded plates P, P... is a mechanism known from, for example, US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... In the Z-shape and is adjacent to the adjacent secondary continuous sheet 3A, 3B. Stack the ends together.
  • FIGS. 7 to 10 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P.
  • a continuous secondary continuous sheet that is overlapped on the lower side when guided by the folded plate P is defined as a first continuous secondary continuous sheet 3A, and a continuous secondary continuous sheet that is overlapped on the upper side is a second continuous sheet.
  • these continuous secondary sheets 3A and 3B are second continuous secondary sheets of the first continuous secondary continuous sheet 3A.
  • the side end e1 that does not overlap the sheet 3B is folded back to the upper side of the second continuous secondary continuous sheet 3B by the side plate P1 of the folded plate P, and as shown in FIGS.
  • the side end e2 of the continuous secondary continuous sheet 3B that does not overlap with the first continuous secondary continuous sheet 3A is folded downward so as to be drawn under the folded plate P from the slit P2 of the folded plate P. .
  • the side end portion e3 (e1) of the continuous secondary continuous sheet 3A stacked while being folded in the upstream folded plate P is second from the slit P2 of the folded plate P.
  • the folded portions of the continuous secondary sheet 3B are guided between the folded portions of the continuous secondary sheet 3B.
  • each continuous secondary continuous sheet 3A, 3B... Is folded into a Z-shape and the side edges of adjacent continuous secondary continuous sheets 3A and 3B are crossed together.
  • the side edge of the next tissue paper is pulled out.
  • the laminated band 30 obtained by the multi-stand type interfolder 1 as described above is cut (cut) at a predetermined interval in the flow direction FL by the subsequent cutting means 41, and the tissue is cut.
  • the tissue paper bundle 30a is stored in the storage box B in the subsequent equipment as shown in FIG. 6A.
  • the paper direction of the laminated strip 30 is the vertical direction (MD direction) along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction.
  • Direction (CD direction) the direction of the paper of the tissue paper constituting the tissue paper bundle 30a obtained by cutting the laminated band 30 into a predetermined length is the extension of the folded portion of the tissue paper as shown in FIG.
  • the vertical direction (MD direction) is along the existing direction
  • the horizontal direction (CD direction) is along the direction orthogonal to the extending direction of the folded portion of the tissue paper.
  • FIG. 6B shows an example of a product in which the tissue paper bundle 30a is stored in the storage box B.
  • a perforation M is provided on the upper surface of the storage box B, and a part of the upper surface of the storage box B is broken by the perforation M so that the upper surface of the storage box B is opened.
  • the opening is covered with a film F having a slit at the center, and the tissue paper T can be taken out through the slit provided in the film F.
  • the direction of the paper of the tissue paper constituting the tissue paper bundle 30a is the horizontal direction (CD direction) along the direction orthogonal to the extending direction of the folded portion of the tissue paper.
  • the pulling direction is along the lateral direction (CD direction) of the tissue paper T.
  • the present invention includes the following inventions.
  • (Invention A1) A production facility for a secondary web roll for tissue paper products, which continuously produces a plurality of secondary web rolls for tissue paper products from a primary web roll, Laminating means for laminating a primary continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet; Contact embossing means for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; A chemical solution applying means installed after the contact embossing means, for applying a chemical solution to the laminated continuous sheet; Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width, Tissue paper product comprising winding means for winding each slit continuous sheet coaxially to form a product width of the tissue paper product or a plurality of secondary raw rolls of multiple widths thereof. Manufacturing equipment for secondary web rolls.
  • invention A2 The facility for producing a secondary raw roll for tissue paper products according to Invention A1, further comprising a smoothing means for smoothing the laminated continuous sheet with a calender before the contact embossing means.
  • invention A3 The manufacturing apparatus of the secondary raw material roll for tissue paper products of invention A1 or invention A2 whose said chemical
  • coating means is a gravure printing system.
  • invention A4 The manufacturing apparatus of the secondary raw material roll for tissue paper products of invention A1 or invention A2 whose said chemical
  • coating means is a flexographic printing system.
  • invention B1 A lamination step in which a primary continuous sheet fed from a plurality of primary fabric rolls is laminated along the continuous direction to form a laminated continuous sheet; A contact embossing process for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; After the contact embossing step, a chemical solution applying step for applying a chemical solution to the laminated continuous sheet; A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, Winding step of winding each slit continuous laminated sheet coaxially to form a plurality of secondary raw rolls of the product width of tissue paper products or a multiple of the width, And a step of transporting a plurality of secondary continuous sheets fed from the plurality of secondary raw rolls along the continuous direction and stacking them while being folded.
  • invention B2 The method for producing the tissue paper product according to Invention B1, further comprising a smoothing step of smoothing the laminated continuous sheet with a calendar before the contact embossing step.
  • Invention B3 The method for producing a tissue paper product according to Invention B1 or Invention B2, wherein the chemical solution is applied by a gravure printing method.
  • invention B4 The method for producing a tissue paper product according to Invention B1 or Invention B2, wherein the chemical solution is applied by a flexographic printing method.
  • (Invention C1) Laminating means for laminating a primary continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet;
  • Contact embossing means for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets;
  • a chemical solution applying means installed after the contact embossing means, for applying a chemical solution to the laminated continuous sheet;
  • Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width, Winding means for winding the slit laminated continuous sheets coaxially to form a plurality of secondary rolls having a product width of tissue paper products or a multiple of the width
  • a tissue paper product manufacturing facility comprising: means for transporting a plurality of secondary continuous sheets fed from the plurality of secondary raw rolls along the continuous direction and stacking them while being folded.
  • invention C2 The tissue paper production facility according to Invention C1, further comprising a smoothing means for smoothing the laminated continuous sheet with a calender before the contact embossing means.
  • invention C3 The tissue paper product manufacturing facility according to invention C1 or invention C2, wherein the chemical solution applying means is a gravure printing method.
  • invention C4 The tissue paper product manufacturing facility according to Invention C1 or Invention C2, wherein the chemical solution applying means is a flexographic printing method.
  • the present invention can be applied to the production of secondary rolls for tissue paper products used in multi-stand type interfolders.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Sanitary Thin Papers (AREA)
PCT/JP2010/062940 2009-12-28 2010-07-30 ティシュペーパー製品用二次原反ロールの製造方法 WO2011080938A1 (ja)

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EP2520206A1 (en) * 2009-12-28 2012-11-07 Daio Paper Corporation Method of manufacturing secondary whole roll for tissue paper product
EP3165142A1 (en) * 2015-11-04 2017-05-10 Lucart Spa Hygienic product and apparatus for its manufacture

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JP4777468B1 (ja) * 2010-05-31 2011-09-21 大王製紙株式会社 薬液含有ティシュペーパーの製造方法及び薬液中の紙粉除去装置
JP5985937B2 (ja) * 2012-09-10 2016-09-06 大王製紙株式会社 ティシュペーパー製品の製造方法及びティシュペーパー製品
CN113290946B (zh) * 2021-07-27 2021-10-01 华昊无纺布(南通)有限公司 一种纸尿裤3d压花装置

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JP4676552B1 (ja) 2011-04-27
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KR101748899B1 (ko) 2017-06-20
KR20120116455A (ko) 2012-10-22
CN102781298B (zh) 2015-07-22

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