CN113373732A - Multipurpose matte coated paper for producing coated paper cup and preparation process thereof - Google Patents
Multipurpose matte coated paper for producing coated paper cup and preparation process thereof Download PDFInfo
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- CN113373732A CN113373732A CN202110610497.9A CN202110610497A CN113373732A CN 113373732 A CN113373732 A CN 113373732A CN 202110610497 A CN202110610497 A CN 202110610497A CN 113373732 A CN113373732 A CN 113373732A
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- 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
- D21H27/10—Packing paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
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- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides multipurpose matte coated paper for producing coated paper cups and a preparation process thereof, the multipurpose matte coated paper for producing the coated paper cups comprises a separation film layer, a raw paper layer, a matte film layer and a wear-resistant layer which are sequentially arranged from inside to outside and mutually attached, a first cooking-resistant adhesive layer is arranged between the raw paper layer and the separation film layer, a second cooking-resistant adhesive layer is arranged between the raw paper layer and the matte film layer, a first adhesive spreading layer is also arranged between the raw paper layer and the first cooking-resistant adhesive layer, a second adhesive spreading layer is also arranged between the raw paper layer and the second cooking-resistant adhesive layer, the separation film layer is formed by compounding a PET (polyethylene terephthalate) base film and a diamond-like carbon coating, and the matte film layer is formed by compounding an extinction polyethylene terephthalate coating and a cooking-grade cast polypropylene coating. The invention can effectively block gas, liquid and other permeants in a high-temperature environment.
Description
Technical Field
The invention mainly relates to the technical field of production of laminated paper cups, in particular to multipurpose matte laminated paper for producing laminated paper cups and a preparation process thereof.
Background
The paper cup is a paper container made by mechanically processing and bonding base paper (white paperboard) made of chemical wood pulp.
According to the matte laminated paper that patent document with application number CN201620887065.7 provided knows, this product includes raw paper layer, raw paper layer upper surface coating has matte release agent layer, matte release agent layer upper surface has then coated matte plastic film layer, raw paper layer lower surface then has the anticorrosive coating through the gluing agent laminating, the anticorrosive coating lower surface then has antibiotic granule through the even laminating in gluing agent interval respectively, anticorrosive coating and antibiotic granule lower surface then laminated the membrane and have antibiotic plastic flat membrane layer, then the digital printing layer and mirror surface plastic film layer of coating in proper order below the antibiotic plastic flat membrane layer. The product has compact structure, convenient rolling, no adhesion, good antiseptic and antibacterial effects and beautiful and elegant appearance.
However, the above copying paper still has defects, for example, although the above copying paper has the advantages of compact structure, convenient rolling and no adhesion, the barrier effect of the base paper in the traditional laminated paper cup on gas and liquid is poor, so that the paper cup is difficult to effectively block the gas, liquid and other permeants under high temperature environment, and further the quality and safety of food are affected.
Disclosure of Invention
The invention mainly provides multipurpose matte coated paper for producing coated paper cups and a preparation process thereof, which are used for solving the technical problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the multipurpose matte coated paper for producing the coated paper cup comprises a separation film layer, a raw paper layer, a matte film layer and a wear-resistant layer which are sequentially arranged from inside to outside and mutually attached, wherein a first cooking-resistant adhesive layer is arranged between the raw paper layer and the separation film layer, a second cooking-resistant adhesive layer is arranged between the raw paper layer and the matte film layer, a first spreading layer is also arranged between the raw paper layer and the first cooking-resistant adhesive layer, and a second spreading layer is also arranged between the raw paper layer and the second cooking-resistant adhesive layer;
the barrier film layer is formed by compounding a PET (polyethylene terephthalate) base film and a diamond-like carbon coating;
the matte film layer is formed by compounding an extinction polyethylene terephthalate coating and a cooking-grade cast polypropylene coating.
Furthermore, first expand the adhesion layer and the second expand the adhesion layer by a plurality of with raw paper layer integrated into one piece's bump is constituteed, and is a plurality of the bump is rectangular array and arranges to improve the area of contact of raw paper layer and separation thin layer and inferior smooth thin layer.
Furthermore, the inner surface and the outer surface of the raw paper layer are both evaporated with a corona treatment surface with a silicon dioxide coating, and the thickness of the corona treatment surface is 0.1-0.2 μm, so that the surface of the raw paper layer is modified in the mode, and the adsorption and the coating performance of the surface of the raw paper layer are improved.
Furthermore, the wearing layer is formed by compounding a polyurethane resin coating and a polymer polyketone coating, a plurality of stripe-shaped raised lines are integrally formed on the outer surface of the wearing layer, the thickness of the wearing layer is 0.2-0.3 mm, and the thickness of the wearing layer is 0.2-0.3 mm, so that the wearing layer can save materials and simultaneously achieve the effect of strengthening strength.
Furthermore, the first boiling-resistant adhesive layer and the second boiling-resistant adhesive layer are both boiling-resistant polyurethane adhesives, and the first boiling-resistant adhesive layer and the second boiling-resistant adhesive layer are boiling-resistant polyurethane adhesives, so that the first boiling-resistant adhesive layer and the second boiling-resistant adhesive layer have good adhesion effect and excellent high-temperature resistance.
Furthermore, the thickness of the blocking film layer is 0.3-0.4 mm, so that the blocking-resistant film layer saves materials and simultaneously achieves the effect of strengthening strength.
Furthermore, the inner surface of the separation film layer is provided with antibacterial particles, so that the separation film layer is sterilized by the antibacterial particles formed by compounding the nano-silver and the polyethylene wax.
According to the technical scheme of the multipurpose matte coated paper for producing the coated paper cup, the preparation process of the multipurpose matte coated paper for producing the coated paper cup comprises the following steps:
step one, respectively putting raw materials of a barrier thin film layer, a matte thin film layer, a first cooking-resistant adhesive layer, a second cooking-resistant adhesive layer and a wear-resistant layer into a plurality of charging bins according to a ratio for mixing to obtain molten barrier thin film layer paint, matte thin film layer paint, first cooking-resistant adhesive layer paint, second cooking-resistant adhesive layer paint and wear-resistant layer paint;
placing the raw paper of the paper cup into a paper embossing machine to form a first spreading layer and a second spreading layer on the surface of the raw paper of the paper cup, and placing the embossed raw paper of the paper cup into a corona treatment machine to form corona treatment surfaces on the inner surface and the outer surface of the raw paper of the paper cup so as to prepare a raw paper layer;
and step three, conveying the raw paper layer prepared in the step two to a press roller, conveying the blocking thin film layer coating, the matte thin film layer coating, the first cooking-resistant adhesive layer coating, the second cooking-resistant adhesive layer coating and the wear-resistant layer coating prepared in the step one to a distributor through an extruder, and coating the blocking thin film layer coating, the matte thin film layer coating, the first cooking-resistant adhesive layer coating, the second cooking-resistant adhesive layer coating and the wear-resistant layer coating on the raw paper layer at the press roller in sequence through a die head of the distributor to obtain the paper cup laminating paper.
Further, in the first step, the obtained molten separation thin-film layer coating, the raw paper layer coating, the matte thin-film layer coating and the wear-resistant layer coating are placed in a ventilating shade place and cooled for 2-3 hours, then the cooled separation thin-film layer coating, the raw paper layer coating, the matte thin-film layer coating and the wear-resistant layer coating are placed in a screening machine, primary screening is carried out through a 30-40-mesh screen plate in the screening machine, then secondary screening is carried out through a 50-70-mesh screen plate, the screening time is 30-60 min, and therefore more fine and finer coatings are prepared through multiple screening of the separation thin-film layer coating, the raw paper layer coating, the matte thin-film layer coating and the wear-resistant layer coating, and the coating effect is improved.
Further, in the third step, the temperature of a die head of the distributor is controlled to be 200-360 ℃.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the matte polyethylene terephthalate coating and the cooking-grade cast polypropylene coating both have excellent transparency and cooking resistance, and simultaneously have matte frosted decoration effect, and the barrier film layer has low oxygen permeability, low water vapor permeability and good fragrance and odor barrier property by virtue of the PET base film and the diamond-like carbon coating.
Secondly, the contact area between the raw paper layer and the first cooking-resistant adhesive layer and between the raw paper layer and the second cooking-resistant adhesive layer is increased through the first adhesive spreading layer and the second adhesive spreading layer on the raw paper layer, so that the contact area between the raw paper layer and the blocking film layer and the matte film layer is increased.
Thirdly, the corona treatment surface is formed on the raw paper layer, so that the surface of the raw paper layer has higher adhesiveness, and the corona treatment surface of the silicon dioxide coating is formed on the surface of the raw paper layer in an evaporation mode, so that the surface of the raw paper layer is modified in the mode, and the adsorption and the coating property of the surface of the raw paper layer are improved.
The present invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 10. a barrier film layer; 20. a raw paper layer; 21. a first adhesion spreading layer; 22. a second adhesion spreading layer; 30. a matte film layer; 40. a first cooking resistant adhesive layer; 50. a second cooking resistant adhesive layer; 60. and a wear-resistant layer.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In an embodiment, referring to fig. 1-2, in a preferred embodiment of the present invention, the multi-purpose matte laminated paper for laminated paper cup production includes a separation film layer 10, a raw paper layer 20, a matte film layer 30 and a wear layer 60 sequentially disposed from inside to outside and bonded to each other, a first steam-resistant adhesive layer 40 is disposed between the raw paper layer 20 and the separation film layer 10, a second steam-resistant adhesive layer 50 is disposed between the raw paper layer 20 and the matte film layer 30, a first spreading layer 21 is further disposed between the raw paper layer 20 and the first steam-resistant adhesive layer 40, and a second spreading layer 22 is further disposed between the raw paper layer 20 and the second steam-resistant adhesive layer 50;
the barrier film layer 10 is formed by compounding a PET (polyethylene terephthalate) base film and a diamond-like carbon coating;
the matte film layer 30 is formed by compounding an extinction polyethylene terephthalate coating and a cooking-grade cast polypropylene coating;
furthermore, the extinction polyethylene terephthalate coating and the cooking-grade cast polypropylene coating have excellent transparency and cooking resistance, and have matte frosted decorative effect.
Further, the barrier film layer 10 is based on the low oxygen permeability, low water vapor transmission rate and good aroma and odor barrier properties of the PET substrate film and diamond-like carbon coating.
Further, first expand the adhesion coating 21 and the second expands adhesion coating 22 by a plurality of with raw paper layer 20 integrated into one piece's bump is constituteed, and is a plurality of the bump is the rectangular array and arranges, because first expand adhesion coating 21 and second expand adhesion coating 22 and constitute by a plurality of bumps with raw paper layer 20 integrated into one piece for raw paper layer 20 increases its and first resistant cooking adhesive coating 40 and the resistant cooking adhesive coating 50 contact area between of second through first expand adhesion coating 21 and second expand adhesion coating 22 on it to improve raw paper layer 20 and separation thin layer 10 and matt thin film layer 30's contact area.
Further, the internal surface and the surface of raw paper layer 20 all evaporate the corona treatment surface that has the silica coating, the thickness of corona treatment surface is 0.1~0.2 mu m, through forming the corona treatment surface on raw paper layer 20 for the surface of raw paper layer 20 has higher adhesion, because the corona treatment surface of silica coating is formed through the mode of evaporation coating on the surface of raw paper layer 20, thereby modifies the surface of raw paper layer 20 through this mode, thereby increases the absorption and the cladding nature on raw paper layer 20 surface.
Further, wearing layer 60 is formed by polyurethane resin coating and polymer polyketone coating complex, wearing layer 60's surface integrated into one piece has a plurality of stripe sand grips, wearing layer 60's thickness is 0.2~0.3mm, through wearing layer 60 by polyurethane resin coating and polymer polyketone coating complex formation to improve the structural strength who drenches membrane paper, because wearing layer 60's thickness is 0.2~0.3mm, reach the effect of strengthening the intensity when making wearing layer 60 save material.
Further, the first boiling-resistant adhesive layer 40 and the second boiling-resistant adhesive layer 50 are both boiling-resistant polyurethane adhesives, and the first boiling-resistant adhesive layer 40 and the second boiling-resistant adhesive layer 50 are boiling-resistant polyurethane adhesives, so that the first boiling-resistant adhesive layer 40 and the second boiling-resistant adhesive layer 50 have good adhesion effects and excellent high-temperature resistance.
Further, the thickness of the blocking film layer 10 is 0.3-0.4 mm, and the thickness of the blocking-resistant film layer 10 is 0.3-0.4 mm, so that the blocking-resistant film layer 10 can save materials and achieve the effect of strength reinforcement.
Further, the inner surface of the blocking film layer 10 is provided with antibacterial particles, so that the blocking film layer 10 can be sterilized by the antibacterial particles formed by compounding the nano-silver and the polyethylene wax.
As shown in fig. 1-2, the preparation process of the multipurpose matte coated paper for producing the coated paper cup according to the embodiment comprises the following steps:
firstly, raw materials of a blocking thin film layer 10, a matte thin film layer 30, a first cooking-resistant adhesive layer 40, a second cooking-resistant adhesive layer 50 and a wear-resistant layer 60 are respectively placed into a plurality of charging bins according to a ratio and mixed to obtain molten blocking thin film layer 10 paint, matte thin film layer 30 paint, first cooking-resistant adhesive layer 40 paint, second cooking-resistant adhesive layer 50 paint and wear-resistant layer 60 paint, and the blocking thin film layer 10, the raw paper layer 20 paint, the matte thin film layer 30 paint and the wear-resistant layer 60 paint are respectively prepared through the blocking thin film layer 10 paint, the raw paper layer 20 paint, the matte thin film layer 30 paint and the wear-resistant layer 60 paint, so that the use effects of the blocking thin film layer 10, the raw paper layer 20, the matte thin film layer 30 and the wear-resistant layer 60 are prevented from being influenced due to the mutual mixing of the raw materials;
step two, placing the raw paper for the paper cup into a paper embossing machine so as to form a first spreading layer 21 and a second spreading layer 22 on the surface of the raw paper for the paper cup, and placing the embossed raw paper for the paper cup into a corona treatment machine so as to form corona treatment surfaces on the inner surface and the outer surface of the raw paper for the paper cup to prepare a raw paper layer 20; after the surface area of the base paper of the paper cup is increased through the first adhesion spreading layer 21 and the second adhesion spreading layer 22, the corona treatment surface formed by a corona machine is matched, so that the adsorption and the coating performance of the base paper layer 20 are further improved;
and step three, conveying the raw paper layer 20 prepared in the step two to a press roller, conveying the blocking thin film layer 10 coating, the matte thin film layer 30 coating, the first cooking-resistant adhesive layer 40 coating, the second cooking-resistant adhesive layer 50 coating and the wear-resistant layer 60 coating prepared in the step one to a distributor through an extruder at the press roller, and coating the blocking thin film layer 10 coating, the matte thin film layer 30 coating, the first cooking-resistant adhesive layer 40 coating, the second cooking-resistant adhesive layer 50 coating and the wear-resistant layer 60 coating on the raw paper layer 20 at the press roller in sequence by a die head of the distributor to obtain the paper cup laminating paper.
Further, in the first step, the obtained molten barrier thin film layer 10 coating, raw paper layer 20 coating, matte thin film layer 30 coating and wear layer 60 coating are placed in a ventilation shade place and cooled for 2-3 hours, the cooled barrier thin film layer 10 coating, raw paper layer 20 coating, matte thin film layer 30 coating and wear layer 60 coating are placed in a screening machine, primary screening is carried out through a screen plate with 30-40 meshes in the screening machine, secondary screening is carried out through a screen plate with 50-70 meshes, and the screening time is 30-60 min. Through screening the coating of the blocking thin film layer 10, the coating of the raw paper layer 20, the coating of the matte thin film layer 30 and the coating of the wear-resistant layer 60 for multiple times, a more delicate coating is prepared, and the coating effect is improved.
Further, in the third step, the temperature of the die head of the distributor is controlled to be 200-360 ℃ so that the die head of the distributor can work at a proper temperature.
The specific operation mode of the invention is as follows:
when the laminated paper is prepared, firstly, raw materials of the blocking thin film layer 10, the raw paper layer 20, the matte thin film layer 30 and the wear-resistant layer 60 are respectively placed into a plurality of charging bins according to the proportion for mixing to obtain molten blocking thin film layer 10 paint, raw paper layer 20 paint, matte thin film layer 30 paint and wear-resistant layer 60 paint;
then, placing the raw paper for the paper cup into a paper embossing machine to form a first spreading layer 21 and a second spreading layer 22 on the surface of the raw paper for the paper cup, and placing the embossed raw paper for the paper cup into a corona treatment machine to form corona treatment surfaces on the inner surface and the outer surface of the raw paper for the paper cup so as to prepare a raw paper layer 20;
and then conveying the prepared raw paper layer 20 to a press roller, conveying the prepared coating of the separation film layer 10, the coating of the raw paper layer 20, the coating of the matte film layer 30 and the coating of the wear-resistant layer 60 to a distributor through an extruder, and coating the coating of the separation film layer 10, the coating of the raw paper layer 20, the coating of the matte film layer 30 and the coating of the wear-resistant layer 60 on the raw paper layer 20 at the press roller in sequence by a die head of the distributor to obtain the paper cup laminating paper.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. The multipurpose matte coated paper for producing the coated paper cup is characterized by comprising a separation film layer (10), a raw paper layer (20), a matte film layer (30) and a wear-resistant layer (60) which are sequentially arranged from inside to outside and are mutually attached, wherein a first cooking-resistant adhesive layer (40) is arranged between the raw paper layer (20) and the separation film layer (10), a second cooking-resistant adhesive layer (50) is arranged between the raw paper layer (20) and the matte film layer (30), a first adhesive spreading layer (21) is also arranged between the raw paper layer (20) and the first cooking-resistant adhesive layer (40), and a second adhesive spreading layer (22) is also arranged between the raw paper layer (20) and the second cooking-resistant adhesive layer (50);
the barrier film layer (10) is formed by compounding a PET (polyethylene terephthalate) base film and a diamond-like carbon coating;
the matte film layer (30) is formed by compounding a delustering polyethylene terephthalate coating and a cooking-grade cast polypropylene coating.
2. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein the first adhesive spreading layer (21) and the second adhesive spreading layer (22) are formed by a plurality of salient points integrally formed with the raw paper layer (20), and the plurality of salient points are arranged in a rectangular array.
3. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein the corona treatment surfaces of the silica coating are evaporated on the inner surface and the outer surface of the raw paper layer (20), and the thickness of the corona treatment surfaces is 0.1-0.2 μm.
4. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein the wear-resistant layer (60) is formed by compounding a polyurethane resin coating and a high-molecular polyketone coating, a plurality of stripe-shaped convex strips are integrally formed on the outer surface of the wear-resistant layer (60), and the thickness of the wear-resistant layer (60) is 0.2-0.3 mm.
5. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein the first cooking-resistant adhesive layer (40) and the second cooking-resistant adhesive layer (50) are both cooking-resistant polyurethane adhesives.
6. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein the thickness of the barrier film layer (10) is 0.3-0.4 mm.
7. The multipurpose matte coated paper for producing the coated paper cup according to claim 1, wherein antibacterial particles are arranged on the inner surface of the barrier film layer (10).
8. The preparation process of the multipurpose matte coated paper for producing the coated paper cup is characterized by comprising the following steps of:
step one, raw materials of a separation thin film layer (10), a matte thin film layer (30), a first cooking-resistant adhesive layer (40), a second cooking-resistant adhesive layer (50) and a wear-resistant layer (60) are respectively placed into a plurality of charging pots according to a ratio and mixed to obtain a molten coating of the separation thin film layer (10), a coating of the matte thin film layer (30), a coating of the first cooking-resistant adhesive layer (40), a coating of the second cooking-resistant adhesive layer (50) and a coating of the wear-resistant layer (60);
step two, placing the raw paper of the paper cup into a paper embossing machine so as to form a first spreading layer (21) and a second spreading layer (22) on the surface of the raw paper of the paper cup, and placing the embossed raw paper of the paper cup into a corona treatment machine so as to form corona treatment surfaces on the inner surface and the outer surface of the raw paper of the paper cup to prepare a raw paper layer (20);
and step three, conveying the raw paper layer (20) prepared in the step two to a press roller, conveying the coating of the blocking film layer (10), the coating of the matte film layer (30), the coating of the first steaming-resistant adhesive layer (40), the coating of the second steaming-resistant adhesive layer (50) and the coating of the wear-resistant layer (60) prepared in the step one to a distributor through an extruder, and sequentially coating the coating of the blocking film layer (10), the coating of the matte film layer (30), the coating of the first steaming-resistant adhesive layer (40), the coating of the second steaming-resistant adhesive layer (50) and the coating of the wear-resistant layer (60) on the raw paper layer (20) at the press roller by a die head of the distributor to obtain the paper cup laminating paper.
9. The preparation process of the multipurpose matte coated paper for producing the coated paper cup according to claim 8 is characterized in that in the step one, the obtained molten coating of the barrier film layer (10), the coating of the raw paper layer (20), the coating of the matte film layer (30) and the coating of the wear-resistant layer (60) are placed in a ventilating shade place for cooling for 2-3 hours, then the cooled coating of the barrier film layer (10), the coating of the raw paper layer (20), the coating of the matte film layer (30) and the coating of the wear-resistant layer (60) are placed in a screening machine, primary screening is carried out through a 30-40-mesh screen plate in the screening machine, then secondary screening is carried out through a 50-70-mesh screen plate, and the screening time is 30-60 min.
10. The process for preparing the multipurpose matte coated paper for producing the coated paper cup according to claim 8, wherein in the third step, the temperature of a die head of a distributor is controlled to be 200-360 ℃.
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| CN202110610497.9A CN113373732A (en) | 2021-06-02 | 2021-06-02 | Multipurpose matte coated paper for producing coated paper cup and preparation process thereof |
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| CN202110610497.9A CN113373732A (en) | 2021-06-02 | 2021-06-02 | Multipurpose matte coated paper for producing coated paper cup and preparation process thereof |
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2021
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| JP2003112718A (en) * | 2001-10-05 | 2003-04-18 | Dainippon Printing Co Ltd | Paper cup |
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| CN206368301U (en) * | 2016-08-15 | 2017-08-01 | 常州市展明纸塑复合材料有限公司 | Dumb light leaching membrane paper |
| CN108086055A (en) * | 2017-12-18 | 2018-05-29 | 温州市新丰装饰材料有限公司 | A kind of lamination release paper manufacture craft with wear-resisting property |
| WO2020056124A1 (en) * | 2018-09-12 | 2020-03-19 | Sm Technology Holdings Llc | Biobased barrier coatings |
| CN209320416U (en) * | 2018-10-29 | 2019-08-30 | 厦门长塑实业有限公司 | A kind of food packaging high-barrier matt laminated film |
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| CN210553484U (en) * | 2019-08-23 | 2020-05-19 | 厦门长塑实业有限公司 | Transparent high-barrier steaming-resistant composite film |
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