WO2014068790A1 - ファスニング部品及びファスニング部品の製造方法 - Google Patents
ファスニング部品及びファスニング部品の製造方法 Download PDFInfo
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- WO2014068790A1 WO2014068790A1 PCT/JP2012/078634 JP2012078634W WO2014068790A1 WO 2014068790 A1 WO2014068790 A1 WO 2014068790A1 JP 2012078634 W JP2012078634 W JP 2012078634W WO 2014068790 A1 WO2014068790 A1 WO 2014068790A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/045—Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
- C08L1/04—Oxycellulose; Hydrocellulose, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
- C08L77/08—Polyamides derived from polyamines and polycarboxylic acids from polyamines and polymerised unsaturated fatty acids
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
- B29K2105/122—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles microfibres or nanofibers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2201/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2005/00—Elements of slide fasteners
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Definitions
- the present invention relates to a fastening part and a manufacturing method of the fastening part.
- fastening parts such as buckles, slide fasteners, snap buttons, and hook-and-loop fasteners have been developed and commercialized.
- Such fastening parts may be made of metal or resin.
- Fastening parts are used not only for daily necessaries such as clothes and bags, but also for special applications such as outer space and underwater.
- Patent Document 1 discloses that a cellulose fiber is contained in a slide fastener tape or element in order to ensure recyclability.
- Patent Document 2 discloses a technique for efficiently miniaturizing plant fibers using a bead mill, and discloses that the microfibrillated plant fibers are hydrophobically modified to improve the adhesion to the resin.
- Patent Document 3 discloses a method for producing a thermoplastic resin composition containing cellulose fibers.
- a cotton-like cellulose fiber and a thermoplastic resin are put into a mixer having rotating blades, and the thermoplastic resin is agitated by generated frictional heat. It includes a step of melting to obtain a mixture in which a thermoplastic resin is adhered to cellulose fibers, and a step of stirring the mixture while cooling.
- reinforcing fibers In order to increase the strength of the fastening part, it is preferable to mix reinforcing fibers with the resin raw material.
- the reinforcing fibers that are usually mixed in the fastening parts are generally selected from those having relatively high heat resistance such as glass fibers and carbon fibers.
- the fastening part according to the present invention is a raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, and the melting point of the thermoplastic resin is 150 to 200 ° C., and the total mass of the thermoplastic resin and the cellulose fibers When the% is 100% by mass, the molded product is a raw material containing the cellulose fibers in an amount of more than 20% by mass and less than 60% by mass.
- the raw material contains 30% by mass or more and 50% by mass or less of the cellulose fiber when the total mass% of the thermoplastic resin and the cellulose fiber is 100%.
- the raw material further contains an inorganic pigment.
- the raw material preferably includes 0.5 to 5% by mass of the inorganic pigment in addition to 100% by mass of the thermoplastic resin and the cellulose fiber.
- the melt viscosity at a shear rate of 12160 sec ⁇ 1 is 500 Pa / s or less, and the melt viscosity at a shear rate of 12.16 sec ⁇ 1 is preferably 5000 Pa / s or more.
- thermoplastic resin is polyamide.
- the bending strength of a test piece having a predetermined size obtained by melting the fastening part is 100 MPa or more.
- the bending elastic modulus of a test piece having a predetermined dimension obtained by melting the fastening part is preferably 4000 GPa or more.
- the fastening part is a fastener slider for a slide fastener.
- the method for producing a fastening part according to the present invention comprises using a molten raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of 150 to 200 ° C., and the thermoplastic resin and the cellulose A first step of supplying a molten raw material containing 20% by mass and less than 60% by mass of the cellulose fiber when the total mass% of the fiber is 100% by mass to the mold; And a second step of cooling the molten raw material filled in the container.
- the fastening component according to the present embodiment is a raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin (hereinafter sometimes simply referred to as a raw material), and the melting point of the thermoplastic resin is 150 to 200 ° C.,
- a raw material a thermoplastic resin
- This is a molded article of a raw material containing 20% by mass and less than 60% by mass of cellulose fibers when the total mass% of the thermoplastic resin and cellulose fibers is 100% by mass.
- cellulose fibers are employed as the reinforcing fibers contained in the thermoplastic resin.
- the reinforcing fibers that are usually mixed in the fastening parts are generally selected from those having sufficient heat resistance such as glass fibers and carbon fibers.
- the cellulose fiber is employed as the reinforcing fiber against such a practice, thereby increasing the strength of the fastening part. Since the melting point of the thermoplastic resin is 150 to 200 ° C., the alteration of the microfibrillated cellulose fibers dispersed in the molten resin can be suppressed to some extent.
- the mass% of the cellulose fiber is more than 20 mass% and less than 60 mass%, the strength of the fastening part and the moldability at the time of molding of the fastening part can be made compatible with each other. This point is also supported by a comparison between examples and comparative examples described later. Thanks to the lightweight and high strength cellulose fibers, the performance of the desired fastening part can be ensured. Considering that cellulose fiber is a renewable biomass resource, it can be said that the environmental performance of the fastening parts can be improved.
- the strength of the fastening parts can be ensured suitably and sufficiently by utilizing the microfibrillated cellulose fiber as the reinforced resin.
- the microfibrillated cellulose fibers are present in a three-dimensional network, and the strength is suitably ensured without impairing the lightness of the fastening parts.
- the microfibrillated cellulose fiber is a bundle of hydrogenated linear cellulose.
- the melting point of the thermoplastic resin may be a value measured by a differential scanning calorimeter, commonly called DSC (Differential scanning calorimetry).
- DSC differential scanning calorimetry
- Differential scanning calorimetry is a technique for detecting the difference in heat of absorption between a measurement sample and a standard sample, thereby measuring the melting point of the measurement sample, and is widely used in the polymer field.
- a DSC having a product name EXSTAR6000 manufactured by Seiko Instruments Inc. may be used.
- the endothermic peak top temperature on the highest temperature side may be the melting point.
- the DSC measurement method may be either heat flux or input compensation.
- ⁇ -alumina may be used as the reference material, but the reference material may be omitted. It is preferable to perform DSC measurement at 10 ° C./min.
- the measuring method of each mass% of the thermoplastic resin and the cellulose fiber is arbitrary. For example, after melting the fastening parts, the cellulose fibers are separated from the thermoplastic resin by filtration, etc., and the mass ratio of the thermoplastic resin to the mass of the fastening parts and the mass ratio of the cellulose fibers to the mass of the fastening parts are calculated and heated. You may calculate each mass% of a plastic resin and a cellulose fiber.
- the thermoplastic resin is polyamide PA11 or polyacetal POM
- hexafluoroisopropanol (HFIP) may be used as a solvent.
- the thermoplastic resin is polypropylene PP, dichlorobenzene may be used as a solvent.
- the fastening part is a constituent part of a buckle, a constituent part of a slide fastener, a constituent part of a snap button, or a constituent part of a hook-and-loop fastener.
- the fastening component is a component of the slide fastener 100 shown in FIGS. 1 and 2.
- the slide fastener 100 includes a pair of left and right fastener tapes 81 (81a, 81b), a pair of left and right coil elements 71 (71a, 71b) provided on the inner edge of the fastener tape 81, A pair of upper stoppers 51 (51a, 51b), a common left and right stopper 61, and a pair of left and right coil elements 71 are inserted into a resin fastener slider 90.
- the fastener slider 90 has a handle 98 attached to a pillar portion 94 of a slider main body 92.
- the slider main body 92 has an upper blade plate and a lower blade plate arranged to face each other via a connecting column, and a Y-shaped element passage is provided therebetween.
- the slide fastener 100 shown in FIG. 2 employs left and right element rows 75 (75a, 75b) in which individual elements are provided at predetermined intervals instead of the coil element 71 shown in FIG. Further, a break-off fitting 65 is employed instead of the bottom stop 61 shown in FIG.
- the split fitting insert 65 includes a box body 65a, a box bar 65b, and a butterfly bar 65c.
- the configuration of the slide fastener 100 shown in FIGS. 1 and 2 is merely exemplary, and the fastening parts disclosed in the present application should not be interpreted in a limited manner.
- the fastening component disclosed in the present application is, for example, the fastener slider 90 disclosed in FIGS. 1 and 2, and is typically a slider main body 92. It is desirable that the slider body 92 has a high strength.
- the fastening component disclosed in the present application is, for example, the upper stopper 51 disclosed in FIG. 1, the lower stopper 61 disclosed in FIG. 1, or the separation fitting 65 disclosed in FIG. 2.
- the fastening component disclosed in the present application is, for example, an element constituting the element row 75 disclosed in FIG. These elements constituting the moving line of the fastener slider 90 or existing on the same line are important in securing the function of the slide fastener 100, and it is desirable to have high strength.
- the fastening parts disclosed in the present application may be buckle components, snap button components, or hook-and-loop fastener components. An illustration and explanation of each of these will be omitted.
- the fastening component disclosed in the present application is at least one of a male-type buckle and a female-type buckle.
- the snap button it is at least one of a male button and a female button forming a set.
- the hook-and-loop fastener it is at least one of a male mold and a female hook-and-loop fastener. It is desirable to apply the fastening parts disclosed herein for both male and female fastener parts.
- the cellulose fiber contained in the raw material will be described in detail.
- the diameter of the microfibrillated cellulose fiber is typically 4 to 1000 nm, preferably 4 to 200 nm, and more preferably 4 to 100 nm. In plants, cellulose exists as single cellulose nanofibers, and the fiber diameter is 4 nm. It is preferable that the cellulose contained in the cellulose fiber is chemically treated to have hydrophobicity. Thereby, affinity with a cellulose fiber and resin can be improved.
- the mass% of the microfibrillated cellulose fiber contained in the raw material is more than 20 mass% and less than 60 mass% as described above.
- the raw material contains 30% by mass or more and 50% by mass or less of the cellulose fiber. This point will be described later. Supported by examples. When the content is 30% by mass or more and 50% by mass or less, the strength of the fastening part and the moldability at the time of molding the fastening part can be more appropriately achieved.
- the raw materials were melted at a melting temperature of 220 ° C., a melt viscosity at a shear rate of 12160Sec -1 is not more than 500 Pa / s, the melt viscosity at a shear rate of 12.16Sec -1 is 5000 Pa / s or more.
- a melt viscosity is measured, it can be said that the dispersibility of the cellulose fibers in the raw material is appropriate, and the strength of the fastening part is often suitably secured.
- the raw material melt at a melt temperature of 220 ° C. a melt viscosity at a shear rate of 12160Sec -1 is not more than 400 Pa / s, the melt viscosity at a shear rate of 12.16sec -1 8000Pa / S or better.
- a capillary rheometer (melt viscosity measuring apparatus) 10 shown in FIG. 3 is used.
- the capillary rheometer 10 includes a fixing bracket 22, a capillary nozzle 23, and an entrance 24 in order from the lower end side of the cylinder 21.
- a piston 29 provided with a rod 26 at the lower end of the rod portion 25 is disposed so as to be movable up and down in the cylinder 21.
- An O-ring 27 is disposed between the outer periphery of the piston 29 and the inner periphery of the cylinder 21, whereby the space below the piston 29 is kept liquid tight.
- a pressure sensor 28 is provided at the lower end of the rod 26 in an arbitrary manner.
- the molten sample 20 is disposed below the cylinder 21 and is introduced into the space below the rod 26 via the capillary nozzle 23 and the entrance 24 by capillary action.
- the melt viscosity ⁇ of a sample (a raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin) is calculated by the following equation.
- the shear stress is determined according to the output value of the pressure sensor.
- the shear rate is in accordance with the descending speed of the piston 29.
- An exemplary test temperature is 220 ° C., which is a temperature above the melting point of the thermoplastic resin, 150-200 ° C.
- the capillary nozzle 23 has a length of 10 mm and an inner diameter of 1 mm.
- a sample obtained by vacuum drying the above sample at 80 ° C. for 6 hours is used as a measurement sample. After filling the measurement sample into the cylinder, it is heated for 5 minutes, and the viscosity identification test is performed.
- Exemplary test speeds are 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 (mm / min).
- Exemplary shear rates are 6.08, 12.16, 24.32, 60.80, 121.6, 243.2, 608.0, 1216, 2432, 6080, 12160 (1 / s).
- melt viscosity generally, increasing the shear rate decreases the melt viscosity. Although this tendency is also observed in the present embodiment, since the cellulose fiber is microfibrillated, the cellulose fiber sufficiently inhibits the movement of the thermoplastic resin in the low shear rate region, that is, the relatively high melt viscosity, that is, the above-mentioned. Is measured at 5000 Pa / s or more, or 8000 Pa / s or more, and the cellulose fibers oriented in the range of high shear rate do not function as a factor that hinders the movement of the thermoplastic resin, that is, a relatively low melt viscosity, that is, the above-mentioned 500 Pa or less. Alternatively, it is estimated that 400 Pa / s or less is measured.
- the raw material melt at a melt temperature of 220 ° C. when the melt viscosity at a shear rate 12.16Sec -1 and M, the melt viscosity at a shear rate 12160Sec -1 was N, It is preferable to satisfy 40 ⁇ M / N ⁇ 120, and more preferably 45 ⁇ M / N ⁇ 116.
- an inorganic pigment may be added to the raw material.
- an inorganic pigment may be added to the raw material.
- the dispersion size of the cellulose fibers is a diameter of 0.004 to 0.02 ⁇ m ⁇ a length of 1 ⁇ m.
- the diameter of the pigment alone or the aggregate is 0.2 to 5 ⁇ m, the cellulose fibers are present as finer fibers than the glass fibers as viewed from the pigment particles.
- the inorganic pigment is one or more pigments selected from the group of white pigments, red pigments, blue pigments, yellow pigments, and black pigments.
- white pigment include titanium dioxide (rutile, anatase) TiO 2 , zinc sulfide ZnS, lead white 2PbCo 3 ⁇ Pb (OH) 2 , zinc white ZnO, lithopone BaSO 4 + ZnS, and antimony trioxide Sb 2 O 3.
- the red pigment include cobalt violet Co 3 (PO 4 ) 2 , cadmium red CdS ⁇ nCdSe, vermillion HgS, molybdenum orange MoPbO 4 , and bengara Fe 2 O 3.
- the blue pigment examples include chromium oxide Cr 2 O 3 , ultramarine 2 (Al 2 Na 2 SiO), bitumen KFe [Fe (CN) 6 ], and cobalt blue CoO ⁇ nAl 2 O 3 , but should be limited thereto. It is not a thing.
- the yellow pigment is, for example, chrome PbCrO 4 , cadmium yellow CdS, zinc chromate ZnCrO 4 , or yellow ocher FeO.OH, but is not limited thereto.
- the black pigment is typically carbon black, but should not be limited thereto.
- barium sulfate BaSO 4 barium carbonate BaCO 3 , calcium carbonate CaCO 3 , gypsum CaCO 4 , silica SiO 2, or the like may be used.
- the mass% and particle diameter of the inorganic pigment can be appropriately adjusted to obtain sufficient dispersibility and color developability. If the particle diameter of the inorganic pigment is too large, the degree of color adjustment by the inorganic pigment is reduced, and if it is too small, aggregation due to van der Waals force may occur. From such a viewpoint, the median diameter of the inorganic pigment is typically 5.0 ⁇ m or less, preferably 3.0 ⁇ m or less, typically 0.1 ⁇ m or more, preferably 0.2 ⁇ m or more. It is. The median diameter of the pigment powder can be measured by a laser diffraction method in accordance with JIS 8825-1: 2001.
- the content of the pigment in the raw material is arbitrary, but is preferably at least less than the mass% of the cellulose fiber in the raw material. If the mass% of the pigment is larger than the mass% of the cellulose fiber, the moldability of the raw material will deteriorate, and it will be difficult to ensure sufficient strength of the fastening part.
- the mass% of the pigment in the raw material is desirably sufficiently lower than the mass% of the cellulose fiber in the raw material.
- the raw material preferably contains 0.5 to 5% by mass of an inorganic pigment in addition to a total of 100% by mass of the thermoplastic resin and cellulose fiber. Not limited to this range, it is 10.0% by mass or less, and preferably 5.0% by mass or less. From the viewpoint of color reproducibility, the mass% of the pigment in the raw material is preferably 0.5 mass% or more, and more preferably 1.0 mass% or more.
- thermoplastic resin The material of the thermoplastic resin is arbitrary as long as it has a melting point of 150 to 200 ° C.
- the thermoplastic resin is a polyamide.
- Polyamide having a melting point of 150 to 200 ° C. is used from the viewpoint of suppressing the burning of cellulose fibers, although the melting point varies depending on the molecular structure. Polyamide tends to yellow when it has a high melting point, and tends to decrease strength and rigidity when it has a low melting point. From this point of view, it is desirable to use polyamide having a melting point of 150 to 200 ° C. The yellowing of the polyamide can be compensated for by adding an inorganic pigment such as white.
- the melting point of the polyamide is determined by using a differential scanning calorimeter as described above.
- Polyamide is obtained by copolycondensation of diamine and dicarboxylic acid, polycondensation of ⁇ -amino acid, ring-opening polymerization of lactams, and the like.
- diamine include linear or branched fatty acids such as ethylenediamine, propylenediamine, butylenediamine, hexamethylenediamine, 2-methylpropanediamine, 3-methylpropanediamine, octamethylenediamine, decanediamine, and dodecanediamine.
- Aromatic diamine metaxylylenediamine, paraxylylenediamine, aromatic diamine such as metaphenylenediamine and paraphenylenediamine, isophoronediamine, 2-aminomethylpiperidine, 4-aminomethylpiperidine, 4,4'-diaminodicyclohexylene Methane, 4,4'-diamino-3,3'-dimethyldicyclohexylenemethane, 1,3-di (4-piperidyl) -propane, 1,2-diaminocyclohexane, 1,3-diaminocyclohexane 1,4-diaminocyclohexane, N-aminopropylpiperazine, 4,4′-diaminodicyclohexylenepropane, 1,2-bis (aminomethyl) cyclohexane, 1,3-bis (aminomethyl) cyclohexane and 1,4- And alicyclic diamine
- dicarboxylic acid examples include succinic acid, propanedioic acid, butanedioic acid, pentanedioic acid, adipic acid, heptanedioic acid, octanedioic acid, nonanedioic acid, decanedioic acid, dodecanedioic acid, undecanedioic acid, dimer Linear or branched aliphatic dicarboxylic acids such as acids and hydrogenated dimer acids, phthalic acid, terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid, 2-chloroterephthalic acid, 2-methylterephthalic acid, 5-methylisophthalic acid Acids, and aromatic dicarboxylic acids such as 5-sodium sulfoisophthalic acid and 1,5-naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, 1,2-cyclohexane
- Examples of ⁇ -amino acids include 6-aminohexanoic acid, 11-aminoundecanoic acid, 12-aminododecanoic acid, 4-piperidinecarboxylic acid, 3-piperidinecarboxylic acid, and 2-piperidinecarboxylic acid.
- Examples of the lactam include ⁇ -caprolactam, undecane lactam, and lauryl lactam.
- polyamides include polycaproamide (nylon 6), polydodecanamide (nylon 12), polytetramethylene adipamide (nylon 46), polyhexamethylene adipamide (nylon 66), polyundecamethylene azide Pamide (nylon 116), polymetaxylylene adipamide (nylon MXD6), polyparaxylylene adipamide (nylon PXD6), polytetramethylene sebacamide (nylon 410), polyhexamethylene sebacamide (nylon 610) ), Polydecamethylene adipamide (nylon 106), polydecamethylene sebamide (nylon 1010), polyhexamethylene dodecamide (nylon 612), polydecamethylene dodecamide (nylon 1012), polyhexamethylene isophthalamide ( Nai 6I), polyhexamethylene terephthalamide (nylon 6T), polybis (3-methyl-4-aminohexyl) methane terephthalamide (nylon PACMT),
- a copolymer obtained by any combination of repeating units of polyamide can also be used.
- polyamide copolymers include caprolactam / hexamethylene adipamide copolymer (nylon 6/6, 6), hexamethylene adipamide / caprolactam copolymer (nylon 6, 6/6). ), Hexamethylene adipamide / hexamethylene-azelainamide copolymer (nylon 6, 6/6, 9) and the like.
- the bending strength of a test piece having a predetermined dimension obtained by melting a fastening part is 100 MPa or more.
- the bending elastic modulus of a test piece having a predetermined size obtained by melting a fastening part is 4000 GPa or more.
- the bending test shall be performed in accordance with JIS-K7171 and ISO178.
- the dimensions of a typical test piece are 80 ⁇ 10 ⁇ 4 mm in the order of length ⁇ width ⁇ thickness.
- the test speed is 10 mm / min.
- Equation 2 The bending stress is calculated by Equation 2, and the maximum value of ⁇ is the bending strength.
- ⁇ is a bending stress.
- F is a bending load.
- L is the distance between fulcrums.
- b is the test piece width.
- h is the specimen thickness.
- the flexural modulus is calculated according to the secant method in which the elastic modulus is calculated from the bending stress gradient in the specified strain interval of 0.05 to 0.25%.
- the bending stress ⁇ 1 and the bending stress ⁇ 2 are calculated from the load at the time of deflection (mm) calculated by Equation 3 using Equation 2, and the bending elastic modulus E is calculated using Equation 4.
- S is the deflection and the unit is mm.
- L is the distance between fulcrums.
- h is the specimen thickness.
- the strength characteristics of the test piece may be measured by other methods.
- the production method according to this embodiment uses a molten raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, and the melting point of the thermoplastic resin is 150 to 200 ° C., exceeding 20 mass%, and exceeding 60 mass%.
- the molding apparatus 200 includes a stirring unit 210 that stirs the molten raw material and a molding unit 220 that molds the molten raw material supplied from the stirring unit 210.
- a conveying screw 202 is rotatably arranged in a hollow cylinder 201, and the molten raw material is conveyed by the rotation of the conveying screw 202.
- cellulose fibers are sufficiently contained in the thermoplastic resin.
- the introduction port of the introduction unit 203 of the agitation unit 210 is configured to be a wide port, thereby facilitating introduction of the molten raw material into the internal space of the cylinder 201.
- the molten raw material is supplied from the cylinder 201 to the molding unit 220 side via the nozzle 204 of the stirring unit 210.
- the molding unit 220 is a general molding apparatus composed of one or more molds, and is not necessarily limited to this mode, but in FIG. 3, it is composed of a first mold 221a and a second mold 221b. Is done.
- the first mold 221a and the second mold 221b are individually provided with molding cavities (not shown) for molding a molded product.
- at least the second mold 221b is provided with a runner (not shown) that communicates between the molding cavity of the second mold 221b and the nozzle 204.
- the first mold 221a and the second mold 221b are maintained at a temperature near the melting point of the thermoplastic resin.
- the first mold 221a and the second mold 221b are cooled by any means.
- the raw material that is stirred by the stirring unit 210 is a molten raw material in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin.
- the raw material is in a molten state when it is introduced into the cylinder 201 through the introduction port of the introducing portion 203.
- the present invention is not necessarily limited to this, and the raw material may be in a molten state by heating in the cylinder 201. If the temperature at the time of stirring is set to be equal to the melting point of 150 to 200 ° C. of the thermoplastic resin, the temperature of the process can be lowered as compared with the case of using a thermoplastic resin having a higher melting point.
- microfibrillated cellulose fiber (Method for producing microfibrillated cellulose fiber) Although the production method of the microfibrillated cellulose fiber itself is arbitrary, a typical and suitable production method will be exemplified. For example, a suspension obtained by suspending pulp in water may be put in a bead mill to defibrate the pulp. The pulp is typically a pulp obtained by a pulping process such as wood or a recycling process for paper resources.
- Thermomechanical pulp TMP
- CMP chemithermomechanical pulp
- NUKP softwood unbleached kraft pulp
- NOKP softwood oxygen-bleached unbleached kraft pulp
- NBKP conifer bleached craft Pulp
- the microfibrillated cellulose fiber may be a partially modified hydroxyl group of glucose unit.
- a hydrophobically modified cellulose fiber modified with a hydrophobizing agent for example, (i) a hydrophobically modified cellulose fiber modified with a hydrophobizing agent, (ii) an anion modified cellulose fiber modified with an anionic agent, or (iii) a cation modified cellulose fiber modified with a cationizing agent You may use.
- hydrophobically modified cellulose fibers the affinity with the resin can be increased.
- the hydrophobic modification reaction for hydrophobizing cellulose fibers can be performed by a known method, but may be esterified using an acid halide.
- the acid halide include an acid chloride having 4 to 18 carbon atoms, specifically, butyryl chloride, hexanoyl chloride, octanoyl chloride, decanoyl chloride, dodecanoyl chloride, stearoyl chloride, oleoyl chloride, and the like.
- the acid chloride which has aromatic rings such as an acid chloride which has an alkenyl group, and a benzyl chloride, is illustrated, These can be used 1 type or in combination of 2 or more types.
- alkyl or alkenyl succinic anhydride examples include compounds having a skeleton derived from an olefin having 4 to 20 carbon atoms and a maleic anhydride skeleton.
- alkyl succinic anhydrides such as octyl succinic anhydride, dodecyl succinic anhydride, hexadecyl succinic anhydride, octadecyl succinic anhydride, pentenyl succinic anhydride, hexenyl succinic anhydride, octenyl succinic anhydride, decenyl succinic anhydride
- alkenyl succinic anhydrides such as undecenyl succinic anhydride, dodecenyl succinic anhydride, tridecenyl succinic anhydride, hexadecenyl succinic anhydride, octadecenyl succinic anhydride, etc. More than one type can be used in combination.
- alkenyl succinic anhydride having an olefin skeleton having 16 carbon atoms may be referred to as “ASA-C16”.
- the amount of acid halide used is preferably about 0.1 to 200 parts by weight, more preferably about 0.5 to 150 parts by weight, based on 100 parts by weight of the cellulose fiber-containing material. 1 to 100 parts by weight is more preferable.
- the temperature at which the cellulose fiber-containing material and the acid halide act (react) is preferably about ⁇ 20 to 150 ° C., preferably about ⁇ 10 to 130 ° C., more preferably about 0 to 100 ° C.
- the amount of the reaction solvent used is preferably about 0.1 to 1000 parts by weight, more preferably about 1 to 500 parts by weight, and still more preferably about 10 to 100 parts by weight with respect to 100 parts by weight of the cellulose fiber-containing material.
- the base used is usually an alkali metal hydroxide, in particular sodium hydroxide.
- a catalyst may be used as necessary, and pyridine, 4-dimethylaminopyridine, 4-pyrrolidinopyridine and the like are used, and 4-dimethylaminopyridine is preferable.
- the amount of the catalyst used is preferably 0.01 to 10000 mol, more preferably 0.02 to 5000 mol, and particularly preferably 0.02 to 3000 mol with respect to 1 mol of glucose units in cellulose.
- the catalyst also serves as a solvent, but when this amount exceeds 10,000 mol with respect to glucose, it does not play an effective role from the viewpoint of the catalyst.
- the amount is less than 0.01 mol, a long time is required for the reaction.
- the hydrophobization reaction can be performed in water, but may be performed in a non-aqueous solvent.
- Non-aqueous solvents include alcohols such as methanol, ethanol, propanol, isopropanol and butanol, halogenated solvents such as methylene chloride, chloroform and carbon tetrachloride, ketone solvents such as acetone and methyl ethyl ketone, THF, ethylene glycol and propylene glycol.
- Ethers such as polyethylene glycol, and amidation solvents such as methyl, dimethyl, ethyl, diethylated products, dimethylformamide, and dimethylacetamide, nonpolar solvents such as hexane, heptane, benzene, and toluene, or mixed solvents thereof is there. Moreover, you may use 2 or more types of mixed solvents chosen from these.
- the temperature at which the cellulose fiber-containing material and alkyl or alkenyl succinic anhydride act (react) is preferably about 100 to 200 ° C, more preferably about 100 to 180 ° C, and still more preferably about 100 to 150 ° C.
- the time for the action (reaction) of the cellulose fiber-containing material and the alkyl or alkenyl succinic anhydride depends on the type, whether or not the reaction is complete depends on the peak of the C ⁇ O stretching vibration of the ester according to the infrared spectrum. It can be confirmed by tracking.
- the reaction between the cellulose fiber-containing material and the “alkyl or alkenyl succinic anhydride” is not particularly limited as long as it is carried out under anhydrous conditions.
- the cellulose fiber-containing material is dried and then dispersed in an organic solvent to obtain alkyl or alkenyl.
- organic solvent examples include alcohols such as methanol, ethanol, propanol, isopropanol and butanol, halogenated solvents such as methylene chloride, chloroform and carbon tetrachloride, ketone solvents such as acetone and methyl ethyl ketone, THF, ethylene glycol, propylene glycol, Ethers such as polyethylene glycol, and amidation solvents such as methyl, dimethyl, ethyl, diethylate, dimethylformamide, and dimethylacetamide, nonpolar solvents such as hexane, heptane, benzene, and toluene, or a mixed solvent thereof . Moreover, you may use 2 or more types of mixed solvents chosen from these.
- a catalyst may be used as necessary, and pyridine, 4-dimethylaminopyridine, 4-pyrrolidinopyridine and the like are used, but 4-dimethylaminopyridine is preferable.
- the amount of the catalyst used is preferably from 0.01 to 10,000 mol, more preferably from 0.02 to 5000 mol, particularly preferably from 0.02 to 3000 mol, based on 1 mol of glucose units in cellulose.
- the catalyst also serves as a solvent, but when this amount exceeds 10,000 mol with respect to glucose, it does not play an effective role from the viewpoint of the catalyst.
- the reaction apparatus for the reactions 1) to 3) is not particularly limited as long as it can be heated and stirred.
- a stirrer with high stirring efficiency is preferable in order to increase the reaction efficiency.
- Specific examples include a kneader, a twin screw extruder, a lab plast mill, a bead mill, and a ball mill. .
- the alkali used for neutralization is not particularly limited as long as it can be neutralized, and examples thereof include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide.
- Example> Examples will be described below.
- polyamide PA11 having a melting point of 190 ° C. was used as the thermoplastic resin.
- Rilsan (registered trademark) BESN0 high-viscosity polyamide PA11 manufactured by Arkema was used.
- Example 3 a low viscosity polyamide PA11 of Rilsan (registered trademark) BMN0 manufactured by Arkema was used.
- the cellulose fibers dispersed in the polyamide were microfibrillated by the above-described method, and NBKP pulp was used as a raw material to be processed for microfibrillation.
- TiO 2 was used as a white inorganic pigment.
- the mass% of each material in the raw material is as disclosed in Table 1.
- the total mass% of the thermoplastic resin and cellulose fiber is calculated to be 100%.
- the pigment is treated as an external number.
- the fastening parts were manufactured in accordance with the conditions described with reference to FIG. In Examples 1 to 5, instead of producing the fastening parts, 80 ⁇ 10 ⁇ 4 mm test pieces were produced in the order of length ⁇ width ⁇ thickness. The characteristic result of the test piece is directly reflected in the characteristic of the fastening part.
- Table 2 shows a comparative example.
- Comparative Example 1 Rilsan (registered trademark) BESNO manufactured by Arkema was used as the thermoplastic resin.
- Prime Polypro J106G was used as the thermoplastic resin.
- Comparative Example 3 Tenac 7511C was used as the thermoplastic resin.
- Comparative Example 1 as a result of the mass% of the cellulose fibers being too high, it was not easy to supply the molten raw material into the mold itself.
- Comparative Example 2 as a result of the low mass% of cellulose fibers, sufficient bending strength could not be ensured.
- Comparative Example 3 as in Comparative Example 2, sufficient bending strength could not be ensured.
- Comparative Example 4 sufficient bending strength could not be ensured. Since Comparative Example 1 could not be molded, results such as bending elastic modulus could not be obtained.
- the characteristics when the fastener part is a fastener slider correspond to the bending elastic modulus, bending strength, melt viscosity of the raw material, etc. described in each table.
- the flexural modulus, flexural strength, melt viscosity, etc. should be measured without depending on the shape of the fastening part. Therefore, a fastening part molded on a fastener slider or the like should be measured after being molded into a test piece of a predetermined size.
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Abstract
Description
ファスニング部品は、バックルの構成部品、スライドファスナーの構成部品、スナップボタンの構成部品、又は面ファスナーの構成部品である。例えば、ファスニング部品は、図1及び図2に示すスライドファスナー100の構成部品である。
原料に含まれるセルロース繊維について詳述する。ミクロフィブリル化したセルロース繊維径は、典型的には4~1000nmであり、好適には4~200nmであり、より好ましくは4~100nmである。なお、植物中においてセルロースがシングルセルロースナノファイバーとして存在しており、その繊維径が4nmである。セルロース繊維に含まれるセルロースを化学的に処置して疎水性を具備させると良い。これにより、セルロース繊維と樹脂との親和性を高めることができる。
原料中、つまり熱可塑性樹脂中においては、直鎖状のセルロースの適当数が束になった微細なセルロース繊維が一様に分散しており、疎密の分布に多少のバラツキがあるとしても全体としては一様に分散しているものと言える。この点に関して、固体状態のファスニング部品からセルロース繊維の分散性を評価することは一般的に困難であるが、ファスニング部品を溶融してその溶融粘度を測定することにより次のように評価することができる。
実施形態によっては、原料には無機顔料を添加しても構わない。これにより、成形時の熱的影響によりセルロース繊維が焼けてファスニング部品が変色する程度を緩和することができる。また場合によっては、成形時の熱的影響等による熱可塑性樹脂の変色による色再現性の悪化を補うことができる。適当量の無機顔料の添加によっても強度低下が生じないことは、ガラス繊維等と比較してセルロース繊維の分散サイズが小さいためであることが推定される。ガラス繊維の分散サイズは、径10μm×長さ300μmである。他方、セルロース繊維の分散サイズは、径0.004~0.02μm×長さ1μmである。顔料の単独若しくは凝集体の径が0.2~5μmの時、顔料粒子からみてガラス繊維よりもセルロース繊維が格段に細い繊維として存在する。
熱可塑性樹脂の材料については融点150~200℃であれば任意である。好ましい実施形態においては、熱可塑性樹脂がポリアミドである。ポリアミドは分子構造によって融点が異なるが、セルロース繊維の焼けを抑制する観点から融点150~200℃のものを活用する。ポリアミドは、高融点になれば黄変する傾向があり、低融点になると強度や剛性が低下する傾向にある。このような観点からも融点150~200℃のポリアミドを活用することが望ましい。ポリアミドの黄変は、白色等の無機顔料の添加により補うことができる。ポリアミドの融点は、上述のように示差走査熱量計を活用して決定づけられる。
後述の実施例に照らせば明らかなように、好ましい実施形態においては、ファスニング部品を溶融して得た所定寸法の試験片の曲げ強度が100MPa以上である。好ましい実施形態においては、ファスニング部品を溶融して得た所定寸法の試験片の曲げ弾性率が4000GPa以上である。
本実施形態に係る製造方法は、ミクロフィブリル化したセルロース繊維が熱可塑性樹脂に分散した溶融原料にして、熱可塑性樹脂の融点が150~200℃であり、20質量%を超え、かつ60質量%未満の質量%のセルロース繊維が含まれる溶融原料を金型に供給する第1工程と、金型内に充填された溶融原料を冷却する第2工程と、を含む。
ミクロフィブリル化したセルロース繊維自体の製造方法は任意であるが、典型的かつ好適な製造方法について例示的に説明する。例えば、水にパルプを懸濁した懸濁液をビーズミルに入れてパルプを解繊すれば良い。パルプは、典型的には木材等のパルプ化処理又は紙資源の再利用化処理により得られたパルプである。例えば、ケミカルパルプ(クラフトパルプ(KP)、亜硫酸パルプ(SP))、セミケミカルパルプ(SCP)、セミグランドパルプ(CGP)、ケミメカニカルパルプ(CMP)、砕木パルプ(GP)、リファイナーメカニカルパルプ(RMP)、サーモメカニカルパルプ(TMP)、及びケミサーモメカニカルパルプ(CTMP)の群から選択される1以上のパルプを採用しても良い。パルプに対して、脱リグニン又は漂白を行い、植物繊維中のリグニン量を調整しても良い。
酸ハロゲン化物の使用量は、セルロース繊維含有材料100重量部に対して0.1~200重量部程度が好ましく、0.5~150重量部程度がより好ましく、1~100重量部が更に好ましい。
「アルキル又はアルケニル無水コハク酸」の使用量は、セルロース繊維含有材料100重量部に対して、0.1~1000重量部程度が好ましく、0.5~500重量部程度がより好ましく、1~500重量部が更に好ましい。
以下、実施例について説明する。実施例1乃至5では、熱可塑性樹脂として融点190℃のポリアミドPA11を用いた。実施例1、2、4、5では、アルケマ製のRilsan(登録商標)BESN0の高粘度のポリアミドPA11を用いた。実施例3では、アルケマ製のRilsan(登録商標)BMN0の低粘度のポリアミドPA11を用いた。ポリアミド中に分散したセルロース繊維は上述に開示の手法によりミクロフィブリル化したものであり、ミクロフィブリル化の処理対象の原料にNBKPパルプを用いた。白色の無機顔料としてTiO2を用いた。原料中の各材料の質量%は、表1に開示のとおりである。なお、実施例においては、熱可塑性樹脂とセルロース繊維の合計質量%が100%となるように計算している。顔料については外部数として扱っている。ファスニング部品の製造は、図4を参照して説明した条件に即して行った。なお、実施例1乃至5では、ファスニング部品を製造することに代えて、長さ×巾×厚さの順で80×10×4mmの試験片を製造した。試験片の特性結果は、ファスニング部品の特性にもそのまま反映される。
75 :エレメント列
81 :ファスナーテープ
90 :ファスナースライダー
92 :スライダー本体
94 :柱部
98 :引手
200 :成形装置
201 :シリンダー
202 :搬送スクリュー
203 :導入部
204 :ノズル
210 :撹拌部
221a :第1金型
221b :第2金型
220 :成形部
Claims (10)
- ミクロフィブリル化したセルロース繊維が熱可塑性樹脂に分散した原料にして、前記熱可塑性樹脂の融点が150~200℃であり、前記熱可塑性樹脂と前記セルロース繊維の合計質量%を100質量%とした時に20質量%を超え、かつ60質量%未満の質量%の前記セルロース繊維が含まれる原料の成形品であるファスニング部品。
- 前記熱可塑性樹脂と前記セルロース繊維の合計質量%を100%とした時に30質量%以上であり50質量%以下の質量%の前記セルロース繊維が前記原料に含まれる、請求項1に記載のファスニング部品。
- 前記原料には無機顔料が更に含まれる、請求項1又は2に記載のファスニング部品。
- 前記原料には、合計100質量%の前記熱可塑性樹脂と前記セルロース繊維に加えて、0.5~5質量%の前記無機顔料が含まれる、請求項3に記載のファスニング部品。
- 溶融温度220℃で溶融した前記原料について、せん断速度12160sec-1での溶融粘度が500Pa/s以下であり、せん断速度12.16sec-1での溶融粘度が5000Pa/s以上である、請求項3又は4に記載のファスニング部品。
- 前記熱可塑性樹脂がポリアミドである、請求項1乃至5のいずれか一項に記載のファスニング部品。
- 前記ファスニング部品を溶融して得た所定寸法の試験片の曲げ強度が100MPa以上である、請求項1乃至6のいずれか一項に記載のファスニング部品。
- 前記ファスニング部品を溶融して得た所定寸法の試験片の曲げ弾性率が4000GPa以上である、請求項5又は7に記載のファスニング部品。
- 前記ファスニング部品がスライドファスナー用のファスナースライダーである、請求項1乃至8のいずれか一項に記載のファスニング部品。
- ミクロフィブリル化したセルロース繊維が熱可塑性樹脂に分散した溶融原料にして、前記熱可塑性樹脂の融点が150~200℃であり、前記熱可塑性樹脂と前記セルロース繊維の合計質量%を100質量%とした時に20質量%を超え、かつ60質量%未満の質量%の前記セルロース繊維が含まれる溶融原料を金型に供給する第1工程と、
前記金型内に充填された前記溶融原料を冷却する第2工程と、
を備えるファスニング部品の製造方法。
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US14/416,094 US9505915B2 (en) | 2012-11-05 | 2012-11-05 | Fastening component and method for manufacturing the fastening component |
PCT/JP2012/078634 WO2014068790A1 (ja) | 2012-11-05 | 2012-11-05 | ファスニング部品及びファスニング部品の製造方法 |
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US9505915B2 (en) | 2016-11-29 |
US20150148460A1 (en) | 2015-05-28 |
TW201417735A (zh) | 2014-05-16 |
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JPWO2014068790A1 (ja) | 2016-09-08 |
CN104812263A (zh) | 2015-07-29 |
TWI516221B (zh) | 2016-01-11 |
JP6012751B2 (ja) | 2016-10-25 |
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