WO2018211838A1 - 複合シート状物 - Google Patents
複合シート状物 Download PDFInfo
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- WO2018211838A1 WO2018211838A1 PCT/JP2018/014082 JP2018014082W WO2018211838A1 WO 2018211838 A1 WO2018211838 A1 WO 2018211838A1 JP 2018014082 W JP2018014082 W JP 2018014082W WO 2018211838 A1 WO2018211838 A1 WO 2018211838A1
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- woven
- knitted fabric
- sheet
- fiber
- composite sheet
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- ZFTDWYZXSHNGBO-UHFFFAOYSA-K tripotassium;5-sulfonatobenzene-1,3-dicarboxylate Chemical compound [K+].[K+].[K+].[O-]C(=O)C1=CC(C([O-])=O)=CC(S([O-])(=O)=O)=C1 ZFTDWYZXSHNGBO-UHFFFAOYSA-K 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
- NUBZKXFFIDEZKG-UHFFFAOYSA-K trisodium;5-sulfonatobenzene-1,3-dicarboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=CC(C([O-])=O)=CC(S([O-])(=O)=O)=C1 NUBZKXFFIDEZKG-UHFFFAOYSA-K 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N3/0036—Polyester fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
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- D06N2203/00—Macromolecular materials of the coating layers
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/14—Furniture, upholstery
-
- D—TEXTILES; PAPER
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/26—Vehicles, transportation
- D06N2211/263—Cars
Definitions
- the present invention relates to a composite sheet-like material, and more specifically, the present invention is impregnated with a fiber entanglement such as a nonwoven fabric made of ultrafine fibers, which is synonymous with an elastic polymer, which is synonymous with a polymer elastic body.
- a fiber entanglement such as a nonwoven fabric made of ultrafine fibers, which is synonymous with an elastic polymer, which is synonymous with a polymer elastic body.
- the woven or knitted fabric is bonded to an outer skin sheet via an adhesive resin layer.
- a sheet-like material made of an elastic polymer and a fiber entanglement such as a nonwoven fabric mainly made of ultrafine fibers has excellent characteristics not found in natural leather, such as high durability and high uniformity.
- the so-called suede-like artificial leather, which is formed by buffing ultrafine fibers, is used not only as a material for clothing but also in various fields such as a vehicle interior material, a furniture interior material, and a building material.
- Integral molding is a molding technique in which artificial leather is set in a mold with the desired design shape and the artificial leather and resin base material are integrated by injection molding on the back side of the artificial leather.
- a leather-like material obtained by integrating a skin layer made of ultrafine fiber nonwoven fabric and a heat-bonded fiber layer entangled and integrated on a woven or knitted fabric by high-speed fluid treatment See Patent Document 2.
- the proposed leather-like material can be molded without melting the heat-sealing fibers due to the heat received from the mold during molding, and the resin does not exude.
- the leather-like material obtained is insufficient in strength for use in vehicle interiors and furniture.
- JP 2006-88504 A Japanese Patent Laid-Open No. 2007-203585
- an object of the present invention is a composite sheet-like product in which a woven or knitted fabric is bonded to a skin sheet in which an elastic polymer is impregnated into a fiber entanglement such as a nonwoven fabric made of ultrafine fibers with an adhesive resin layer interposed therebetween.
- An object of the present invention is to provide a composite sheet-like material that not only has excellent moldability but also has high strength after molding and can be used particularly suitably for vehicle interiors and furniture.
- the present invention is to solve the above problems, and the composite sheet-like material of the present invention comprises a fiber entangled body made of ultrafine fibers having an average single fiber diameter of 0.1 to 8 ⁇ m and an elastic polymer.
- the skin sheet is a composite sheet-like product in which a woven or knitted fabric is bonded via an adhesive resin layer, and the woven or knitted fabric includes a polyester fiber as a constituent component, and the polyester constituting the polyester fiber has 1, A composite sheet containing 1 to 500 ppm of a component derived from 2-propanediol.
- the adhesive resin constituting the adhesive resin layer is a moisture curable resin.
- the moisture curable resin includes a polyurethane resin.
- the woven or knitted fabric has a value of 10% circular modulus in any direction of 5 N / cm or more and 40 N / cm or less, and the elongation at break in any direction is 25% or more.
- the fiber entangled body includes a polyester fiber as a constituent component, and 1 to 2, a component derived from 1,2-propanediol is contained in the polyester constituting the polyester fiber. It is to contain 500 ppm.
- the composite sheet-like material of the present invention is a composite sheet-like material that is less susceptible to strength reduction due to heat when thermoforming.
- the composite sheet-like material of the present invention is an ultrafine fiber having an average single fiber diameter of 0.1 to 8 ⁇ m. Needless to say, a fiber having such an average single fiber diameter corresponds to the ultrafine fiber referred to in the present invention.
- a composite sheet-like product in which a woven or knitted fabric is bonded to a skin sheet composed of an entangled body and an elastic polymer via an adhesive resin layer, the woven or knitted fabric comprising a polyester fiber as a constituent component, and the polyester fiber Is a composite sheet-like product containing 1 to 500 ppm of 1,2-propanediol in the polyester constituting.
- ultrafine fibers constituting the fiber entangled body for example, natural fibers, regenerated fibers, semi-synthetic fibers and synthetic fibers can be used.
- synthetic fibers are preferable from the viewpoint of durability, particularly mechanical strength, heat resistance, and light resistance, and polyester fibers are particularly preferable.
- polyester fibers are used as the ultrafine fibers
- 1,2-propanediol-derived components should be contained in the polyester constituting the polyester fibers in order to improve the heat resistance and wear resistance of the skin sheet. Is also a preferred embodiment.
- the component derived from 1,2-propanediol here is determined by the total amount of 1,2-propanediol detected when the polyester is decomposed and analyzed by the method described in the Examples section. This is considered to be the structure derived from 1,2-propanediol copolymerized in the polymer chain and the total amount of 1,2-propanediol mixed between the polymers. That is, the 1,2-propanediol may be partially copolymerized in the polyester main chain, and may be contained as a simple substance without being copolymerized.
- the polyester is selectively used using a solvent such as 1,1,1,3,3,3-hexafluoro-2-propanol or orthochlorophenol. After extraction and evaporation of the solvent, the concentration can be determined by the method described in the Examples section.
- the polymers forming the ultrafine fibers include inorganic particles such as titanium oxide particles, lubricants, pigments, heat stabilizers, ultraviolet absorbers, conductive agents, depending on various purposes.
- An agent, a heat storage agent, an antibacterial agent, and the like can be added.
- the cross-sectional shape of the ultrafine fiber is preferably a round cross-section from the viewpoint of processing operability, but is polygonal such as ellipse, flat and triangular, fan-shaped and cross-shaped, hollow-shaped, Y-shaped, T-shaped, and U
- a cross-sectional shape having a deformed cross section such as a mold may be employed.
- the average single fiber diameter of the ultrafine fibers is 0.1 to 8 ⁇ m. By setting the average single fiber diameter to 8 ⁇ m or less, a skin sheet excellent in surface quality with a dense and soft touch can be obtained. On the other hand, when the average single fiber diameter is 0.1 ⁇ m or more, an effect excellent in coloring property and fastness after dyeing is exhibited.
- the average single fiber diameter of the ultrafine fibers is preferably 1 ⁇ m or more and 6 ⁇ m or less, and more preferably 1.5 ⁇ m or more and 4.5 ⁇ m or less.
- the average single fiber diameter is obtained by taking a scanning electron microscope (SEM) photograph of a cross section of a sheet-like material, selecting 100 circular or near-elliptical elliptical fibers at random, measuring the single fiber diameter, and calculating 100 arithmetic operations. Calculate by calculating the average value.
- SEM scanning electron microscope
- the cross-sectional area of the single fiber is measured, and the equivalent fiber diameter is calculated to obtain the single fiber diameter.
- the ultrafine fibers are in the form of a non-woven fabric (sometimes referred to as an ultrafine fiber web) in the fiber entangled body constituting the skin sheet.
- a non-woven fabric sometimes referred to as an ultrafine fiber web
- a uniform and elegant appearance and texture can be obtained when the surface is raised.
- non-woven fabric either a long-fiber non-woven fabric or a short-fiber non-woven fabric can be adopted, but a short-fiber non-woven fabric is a preferred embodiment because it has a large number of raised fibers on the product surface and can easily obtain an elegant appearance.
- the fiber length of the ultrafine fiber in the case of a short fiber nonwoven fabric is preferably 25 to 90 mm. By setting the fiber length to 90 mm or less, good quality and texture can be obtained, and by setting the fiber length to 25 mm or more, a skin sheet having excellent wear resistance can be obtained.
- the fiber length is more preferably 35 to 80 mm, still more preferably 40 to 70 mm.
- the basis weight of the fiber entangled body constituting the skin sheet is preferably in the range of 50 to 400 g / m 2 , more preferably in the range of 80 to 300 g / m 2 .
- the basis weight of the fiber entangled body is less than 50 g / m 2 , the skin sheet becomes paper-like and the texture is poor.
- the fabric weight of a fiber entangled body exceeds 400 g / m ⁇ 2 >, there exists a tendency for the texture of a skin sheet to become hard.
- the skin sheet used in the present invention is laminated with a woven fabric to be entangled and integrated with the nonwoven fabric inside the skin sheet for the purpose of improving the strength, etc., separately from the woven or knitted fabric bonded through the adhesive resin layer. It can be set as the fiber entanglement body used for this invention as an aspect entangled with the nonwoven fabric.
- the fibers constituting the fabric include filament yarn, spun yarn, innovative spun yarn, and mixed composite yarn of filament yarn and spun yarn. Is mentioned.
- the basis weight of the woven fabric integrated with the nonwoven fabric is preferably in the range of 20 to 200 g / m 2 , more preferably in the range of 30 to 150 g / m 2 .
- the fabric weight is less than 20 g / m 2 , the shape stability as the fabric is poor, and when the fabric is inserted between the nonwoven fabric or when the fabric is overlapped on the surface of the nonwoven fabric, wrinkles are generated and uniformly It becomes difficult to laminate.
- the basis weight of the woven fabric exceeds 200 g / m 2 , the structure of the woven fabric becomes dense, and the entanglement between the nonwoven fabric and the woven fabric tends to be difficult.
- the yarn constituting the woven fabric is a strong twisted yarn, and the number of twists of the yarn constituting the woven fabric is preferably 700 T / m to 4500 T / m.
- the elastic polymer constituting the skin sheet used in the present invention is used as a binder for holding the ultrafine fibers constituting the skin sheet, and considering the flexible texture of the composite sheet material of the present invention, the elastic polymer is , Polyurethane, SBR (styrene-butadiene rubber), NBR (nitrile rubber), and acrylic resin. Among these, it is preferable to use polyurethane as a main component. By using polyurethane, it is possible to obtain a composite sheet-like product having a tactile sensation with a sense of fullness, a leather-like appearance, and physical properties that can withstand actual use. Moreover, the main component here means that the mass of polyurethane is more than 50 mass% with respect to the mass of the whole elastic polymer.
- polyurethane in the present invention, either an organic solvent-based polyurethane used in a state dissolved in an organic solvent or a water-dispersed polyurethane used in a state dispersed in water can be employed.
- a polyurethane obtained by a reaction of a polymer diol, an organic diisocyanate and a chain extender is preferably used.
- the elastic polymer has various additives depending on the purpose, for example, pigments such as carbon black, flame retardants such as phosphorus, halogen and inorganic, antioxidants such as phenol, sulfur and phosphorus.
- pigments such as carbon black
- flame retardants such as phosphorus, halogen and inorganic
- antioxidants such as phenol, sulfur and phosphorus.
- UV absorbers such as benzotriazole, benzophenone, salicylate, cyanoacrylate and oxalic acid anilides, light stabilizers such as hindered amines and benzoates, hydrolysis stabilizers such as polycarbodiimides, plastics Agents, antistatic agents, surfactants, coagulation modifiers, dyes, and the like can be included.
- the content of the elastic polymer in the skin sheet can be appropriately adjusted in consideration of the type of elastic polymer to be used, the method for producing the elastic polymer, the texture and physical properties.
- the content of the elastic polymer is preferably 10% by mass or more and 60% by mass or less, more preferably 15% by mass or more and 45% by mass or less, and further preferably 20% by mass or more and 40% by mass or less with respect to the mass of the skin sheet. It is below mass%.
- the content of the elastic polymer is less than 10% by mass, the bond between the fibers due to the elastic polymer is weakened and the abrasion resistance of the skin sheet tends to be inferior.
- content of an elastic polymer exceeds 60 mass%, there exists a tendency for the texture of a skin sheet to become hard.
- the thickness of the skin sheet is measured by JIS L1913 (2010) 6.1A method, and is preferably 0.2 to 1.2 mm, more preferably 0.3 to 1.1 mm, and still more preferably 0.00. 4 to 1 mm.
- the thickness of the skin sheet is smaller than 0.2 mm, the workability at the time of manufacture is deteriorated, and when the thickness is larger than 1.2 mm, the flexibility of the composite sheet-like material tends to be impaired.
- the surface has napping.
- the napped form in the case of having napped on the surface has napped length and directional flexibility to the extent that a so-called finger mark is generated, leaving a mark when the napped direction changes when traced with a finger from the viewpoint of design effect More specifically, the surface raised length is preferably 10 ⁇ m or more and 300 ⁇ m.
- the surface napping length is obtained by taking a cross section of the composite sheet in a state where the napping is upside-down at a magnification of 50 times, measuring the height of the napped portion (layer consisting of only ultrafine fibers) at 10 points, and calculating the arithmetic average value. Calculate by calculating.
- the woven or knitted fabric to be bonded to the skin sheet used in the present invention contains polyester fiber as a constituent component, and further contains 1 to 500 ppm of a component derived from 1,2-propanediol in the polyester constituting the polyester fiber. This is very important.
- the polyester fiber is a synthetic fiber excellent in heat resistance, but further, by adding 1 to 500 ppm, preferably 5 to 300 ppm, more preferably 10 to 100 ppm of a component derived from 1,2-propanediol in the polyester, Its heat resistance is improved, and as a result, the woven and knitted fabrics and composite sheet-like materials using the woven and knitted fabrics can be molded not only with higher heat, but also with less strength reduction after thermoforming, and as a result after thermoforming In this case, a composite sheet having a high strength is obtained.
- the polyester constituting the polyester fiber of the woven or knitted fabric is preferably a polymer that can be made into fibers, and specifically, for example, polyethylene terephthalate, polytrimethylene terephthalate, polytetramethylene terephthalate, polycyclohexylene dimethylene terephthalate. Polyethylene-2,6-naphthalenedicarboxylate, polyethylene-1,2-bis (2-chlorophenoxy) ethane-4,4′-dicarboxylate, and the like. Of these, polyethylene terephthalate, which is most commonly used, or a polyester copolymer mainly containing ethylene terephthalate units is preferably used.
- dicarboxylic acid and / or ester-forming derivative constituting the polyester examples include terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid (for example, 2,6-naphthalenedicarboxylic acid), diphenylcarboxylic acid (for example, diphenyl-4,4).
- cyclohexanedicarboxylic acid Such as alicyclic dicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, 5-sulfoisophthalate (5-sulfoisophthalic acid lithium salt, 5-sulfoisophthalic acid potassium salt, 5-sulfoisophthalic acid sodium salt, etc.) Aromatic dicarboxylic acids and their Such as ester forming derivatives thereof.
- the ester-forming derivative referred to in the present invention means lower alkyl esters, acid anhydrides, acyl chlorides and the like of these dicarboxylic acids, and for example, methyl esters, ethyl esters, and hydroxyethyl esters are preferably used.
- a more preferred embodiment of the dicarboxylic acid and / or ester-forming derivative thereof used in the present invention is terephthalic acid and / or dimethyl ester thereof.
- terephthalic acid and / or its dimethyl ester terephthalic acid derived from biomass resources and / or its dimethyl ester can be used.
- a method for obtaining terephthalic acid derived from a biomass resource for example, p-cymene is synthesized from cineol obtained from a plant of the genus Eucalyptus (see the Chemical Society of Japan, (2), P217-219; 1986), and then p-methyl.
- a method of obtaining terephthalic acid through benzoic acid is mentioned.
- Still another method is a method of obtaining terephthalic acid from furandicarboxylic acid and ethylene by Diels-Alder reaction (see International Publication WO2009-0664515). It is allowed that the terephthalic acid derived from the biomass resource thus obtained is further converted into an ester-forming derivative.
- diol constituting the polyester examples include ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, cyclohexanedimethanol, diethylene glycol, and 2-methyl.
- -1,3-propanediol polyoxyalkylene glycols having a molecular weight of 500 to 20000 (polyethylene glycol, etc.), and diol components such as bisphenol A-ethylene oxide adducts, among which ethylene glycol is preferably used.
- 1,2-propanediol can be used in order to make the concentration range specified in the present invention.
- ethylene glycol ethylene glycol derived from biomass resources often contains 1,2-propanediol, so that the content of 1,2-propanediol is adjusted by refining. It is a more preferable embodiment to use ethylene glycol.
- Examples of the method for obtaining ethylene glycol derived from biomass resources include a method for obtaining from biomass resources such as corn, sugarcane, wheat, and crop stalks. Specifically, these biomass resources are first converted to starch, starch is converted to glucose with water and enzymes, and then converted to sorbitol by a hydrogenation reaction, where sorbitol continues to exist at a constant temperature and pressure. Below, there is a method in which a mixture of various glycols is obtained by hydrogenation reaction and purified to obtain ethylene glycol.
- the type of woven or knitted fabric to be bonded to the skin sheet used in the present invention includes weft knitting represented by warp knitting and tricot knitting, lace knitting and various knittings based on these knitting methods, or plain weave, twill weave, satin weave Although it can be adopted according to the design of composite sheet-like materials such as various woven fabrics based on their weaving methods, it is preferable to use a knitted fabric with higher flexibility.
- the woven or knitted fabric to be bonded to the skin sheet used in the present invention preferably has a 10% circular modulus value in an arbitrary direction of 5 N / cm or more and 40 N / cm or less.
- the value of the 10% circular modulus is related to the ability to follow the curved portion when molding a composite sheet, and if the value of the 10% circular modulus in any direction is less than 5 N / cm, it will become sagging. In addition, when it exceeds 40 N / cm, the adhesiveness tends to deteriorate due to distortion. Since a force is applied to the sheet at the time of molding from any direction, it is preferable that the 10% circular modulus of the woven or knitted fabric exhibits the above value in an arbitrary direction.
- ‘Arbitrary direction’ here means that woven and knitted fabrics are randomly measured in four directions, and all of them show measured values within the above range. Moreover, it has values within the above-mentioned range in all of four directions obtained by giving an angle of 45 degrees, that is, directions forming angles of 0 degrees, 45 degrees, 90 degrees, and 135 degrees with respect to the reference line. preferable. In addition, when there is a concern that there is a large variation in measurement at each angle, three or more measurements are performed, and the arithmetic average is taken as the measurement value at that angle.
- the woven or knitted fabric to be bonded to the skin sheet used in the present invention preferably has a breaking elongation in any direction of 25% or more, more preferably 35% or more, and 45% or more. This is a more preferable embodiment. If the elongation at break is less than 25%, the woven or knitted fabric may break at the bent portion during molding. In addition, since the woven or knitted fabric having an excessively high breaking elongation tends to be stretched and has poor shape stability, the breaking elongation is preferably less than 100%. Note that the arbitrary direction here is as described above.
- the thickness of the woven or knitted fabric is preferably 0.1 to 1 mm, more preferably 0.15 to 0.8 mm, and still more preferably 0.2 to 0.7 mm.
- the thickness of the woven or knitted fabric is less than 0.1 mm, the processability when pasted to the above-described skin sheet is deteriorated, and when the thickness is greater than 1 mm, the flexibility of the composite sheet-like product tends to be impaired.
- the skin sheet and the woven or knitted fabric are bonded together via an adhesive resin layer.
- the adhesive resin layer plays a role as an adhesive that bonds the skin sheet and the woven or knitted fabric.
- the adhesive resin constituting the adhesive resin layer include a polyester resin, a copolyester resin, a nylon resin, and an acrylic resin.
- thermoplastic resins such as resins
- moisture curable resins such as silicone rubber, polystyrene rubber, and polyurethane resin.
- a moisture curable resin that is excellent in heat resistance and does not impair the appearance of the skin sheet at the time of adhesion is more preferable, and a polyurethane resin having good adhesiveness is preferably used as the moisture curable resin.
- the moisture curable polyurethane resin include Hibon YA-180-1 (manufactured by Hitachi Chemical).
- the shape of the adhesive resin layer various shapes such as a sheet shape, a mesh shape and a dot shape capable of adhering the skin sheet and the woven or knitted fabric can be taken, but if the shape of the adhesive resin layer is a dot shape, a composite sheet material Becomes a flexible texture.
- the dot size may be a dot diameter of 10 ⁇ m or more and 1000 ⁇ m or less.
- the number of dots is preferably 10 or more and 200 or less per 1 cm 2 .
- the thickness of the adhesive resin layer is preferably 1 to 100 ⁇ m as long as it has sufficient adhesion and does not impair the soft texture of the composite sheet.
- the composite sheet-like material of the present invention can be appropriately provided with a resin containing a flame retardant according to the intended use.
- the resin is selected from acrylic resin, urethane resin, polyester resin, vinyl acetate resin, etc., and acrylic resin is used from the viewpoint of adhesion to composite sheet and heat resistance. Particularly preferably used.
- a phosphorus-based and / or inorganic flame retardant that does not generate harmful substances during combustion is preferably used as the type of flame retardant.
- phosphorus flame retardants include polyphosphates such as ammonium polyphosphate (for example, Exflam APP204 (manufactured by Wellchem), Exolit AP462 (manufactured by Clariant)), nitrogen-containing organic phosphates such as guanidine phosphate (for example, Bigol No.
- polyphosphates such as ammonium polyphosphate (for example, Exflam APP204 (manufactured by Wellchem), Exolit AP462 (manufactured by Clariant)), nitrogen-containing organic phosphates such as guanidine phosphate (for example, Bigol No.
- aromatic phosphate esters such as triphenyl phosphate and trixylenyl phosphate (for example, TPP (manufactured by Daihachi Kogyo Co., Ltd.)
- TPP trixylenyl phosphate
- known flame retardants such as aluminum hydroxide, titanium oxide, zinc oxide, expansive graphite, magnesium hydroxide, calcium carbonate, zinc borate, ammonium polyphosphate, and red phosphorus can be used.
- the resin containing the flame retardant may further contain aluminum hydroxide, magnesium hydroxide, metal oxide, and the like as a flame retardant aid.
- a thickener for improving stability over time and production workability, and softening agents such as liquid paraffin and polyethylene glycol can be added to the resin containing the flame retardant.
- polyvinyl alcohol methyl cellulose, carboxymethyl cellulose, alkali thickened acrylic resin, ethylene oxide higher fatty acid ester, and the like can be used as long as the sticking resistance is not adversely affected.
- the application form of the resin containing the flame retardant depending on the application and required properties, such as impregnating only the skin sheet, impregnating the composite sheet material, applying to the back surface of the skin sheet or composite sheet material, etc. It can be selected appropriately.
- the amount of the resin containing the flame retardant is within a range that does not impair the soft texture of the composite sheet, and in order to exhibit good flame retardancy, the weight of the composite sheet (solid) Is preferably 5 to 25% by mass, more preferably 10 to 20% by mass.
- the composite sheet-like material of the present invention is characterized in that the strength reduction of the composite sheet-like material is small even after thermoforming. Since it is difficult to measure the strength reduction of the composite sheet alone after actual thermoforming, the strength reduction after thermoforming of the composite sheet was measured in a simulated manner as follows.
- ⁇ Reduction in strength of composite sheet after heating press 100 ⁇ ⁇ (Tensile strength of composite sheet before heating press (N / cm)) ⁇ (Tensile strength of composite sheet after heating press) (N / cm)) ⁇ / Tensile strength (N / cm) of the composite sheet before heating and pressing.
- the strength reduction of the composite sheet after heating press is 5% or less, the strength reduction of the composite sheet after thermoforming is small and the strength is sufficient after thermoforming.
- the sheet-like material of the present invention is the weight of the sheet-like material after wearing 20000 times in a wear resistance test rod measured by JIS L1096E method (2010) 8.19.5E method (Martindale method).
- the decrease is preferably 10 mg or less, more preferably 8 mg or less, and even more preferably 6 mg or less.
- the weight loss is 10 mg or less, contamination due to fluffing during actual use can be prevented.
- ultrafine fiber expression type fibers As a means for obtaining ultrafine fibers constituting the skin sheet, it is preferable to use ultrafine fiber expression type fibers. After the ultrafine fiber expression type fiber is entangled in advance to obtain a nonwoven fabric, the fiber is ultrafinened to obtain a nonwoven fabric in which the ultrafine fiber bundle is easily entangled.
- ultrafine fiber expression type fiber two component thermoplastic resins having different solvent solubility are used as a sea component and an island component, and the sea component is dissolved and removed using a solvent to make the island component an ultrafine fiber.
- Adopt peel-type composite fiber that splits the sea-island type composite fiber or two-component thermoplastic resin into ultrafine fibers by alternately arranging the fiber cross-sections radially or in layers and separating and separating each component. Can do.
- the sea-island type composite fiber can provide an appropriate gap between the island components, that is, between the ultrafine fibers inside the fiber bundle, by removing the sea component.
- the sea-island type composite fiber can provide an appropriate gap between the island components, that is, between the ultrafine fibers inside the fiber bundle, by removing the sea component.
- sea-island type composite fiber a sea-island type compound base is used, and a method using a polymer inter-array in which the sea component and the island component are mutually aligned and spun, and the sea component and the island component are mixed.
- sea-island type composite fibers by a method using a polymer mutual array are preferably used.
- a short fiber nonwoven fabric or a long fiber nonwoven fabric can be used as a form of a nonwoven fabric.
- the fibers facing in the thickness direction of the sheet-like material are compared to the long fiber nonwoven fabric. As a result, the surface of the sheet-like material is raised and a high density can be obtained.
- the obtained ultrafine fiber-expressing fiber is preferably crimped and cut into a predetermined length to obtain raw cotton.
- a known method can be used for crimping or cutting.
- the obtained raw cotton is made into a fiber web with a cross wrapper or the like and entangled to obtain a nonwoven fabric which is a kind of fiber entangled body.
- a needle punch, a water jet punch, or the like can be used as a method for obtaining a nonwoven fabric by entanglement of a fiber web.
- a nonwoven fabric and a woven fabric can be entangled and integrated to form a fiber entangled body, and a method of integrating these by needle punch, water jet punch or the like is preferably used.
- the number of needle barbs is preferably 1-9. By using one or more needle barbs, efficient fiber entanglement becomes possible. On the other hand, by making the needle barb preferably 9 or less, fiber damage can be suppressed.
- the number of composite fibers such as ultrafine fiber-expressing fibers caught on the barb is determined by the shape of the barb and the diameter of the composite fiber. Therefore, the barb shape of the needle used in the needle punching process has a kick-up of 0-50 ⁇ m, an undercut angle of 0-40 °, a throat depth of 40-80 ⁇ m, and a throat length of 0.5. A barb of ⁇ 1.0 mm is preferably used.
- the number of punching is preferably 1000 to 8000 / cm 2 .
- By punching number is preferably at 1000 / cm 2 or more, it is possible to denseness obtain finishing precision obtained.
- the number of punching is preferably 8000 / cm 2 or less, deterioration of workability, fiber damage, and strength reduction can be prevented.
- the needle barb direction of the needle punch is preferably 90 ⁇ 25 ° perpendicular to the traveling direction of the woven fabric and the nonwoven fabric. This makes it difficult to hook easily damaged wefts.
- water jet punching process it is preferable to perform the water in a columnar flow state.
- water is ejected from a nozzle having a diameter of 0.05 to 1.0 mm at a pressure of 1 to 60 MPa.
- the apparent density of the nonwoven fabric composed of the composite fiber (ultrafine fiber expressing fiber) after needle punching or water jet punching is preferably 0.15 to 0.45 g / cm 3 .
- the apparent density preferably 0.15 g / cm 3 or more, the artificial leather base material can have sufficient form stability and dimensional stability.
- the apparent density is preferably 0.45 g / cm 3 or less, a sufficient space for applying the elastic polymer can be maintained.
- the non-woven fabric is subjected to a heat shrink treatment by hot water or steam treatment in order to improve the fineness of the fibers.
- the non-woven fabric can be impregnated with an aqueous solution of a water-soluble resin and dried to give the water-soluble resin.
- a water-soluble resin By applying a water-soluble resin to the nonwoven fabric, the fibers are fixed and the dimensional stability is improved.
- the obtained non-woven fabric is treated with a solvent to develop ultrafine fibers having an average single fiber diameter of 0.1 to 8 ⁇ m.
- the expression treatment of ultrafine fibers can be performed by immersing a nonwoven fabric made of sea-island composite fibers in a solvent to dissolve and remove sea components.
- the ultrafine fiber-expressing fiber is a sea-island type composite fiber
- the solvent for dissolving and removing the sea component when the sea component is polyethylene, polypropylene, and polystyrene, an organic solvent such as toluene or trichloroethylene can be used. Further, when the sea component is a copolyester or polylactic acid, an aqueous alkali solution such as sodium hydroxide can be used. When the sea component is a water-soluble thermoplastic polyvinyl alcohol resin, hot water can be used.
- the nonwoven fabric (fiber entangled body) is impregnated with an elastic polymer solution or dispersion and solidified to give the elastic polymer.
- an elastic polymer solution or dispersion As a method for fixing the elastic polymer to the nonwoven fabric, there is a method of impregnating a sheet (nonwoven fabric) with a solution or dispersion of the elastic polymer and performing wet coagulation or dry coagulation, which is appropriately selected depending on the type of the elastic polymer to be used. Can do.
- the sheet-like material provided with the elastic polymer is preferably cut in half in the thickness direction from the viewpoint of production efficiency.
- Raising treatment can be performed on the surface of the sheet-like material to which the elastic polymer is applied or the half-cut sheet-like material.
- the raising treatment can be performed by a grinding method using sandpaper or a roll sander.
- a lubricant such as a silicone emulsion can be applied before the raising treatment.
- applying an antistatic agent before the raising treatment is a preferable embodiment because grinding powder generated from the sheet-like material by grinding becomes difficult to deposit on the sandpaper. In this way, a skin sheet is formed.
- the above skin sheet can be dyed as necessary.
- the dyeing process include immersion dyeing such as liquid dyeing using a jigger dyeing machine or liquid dyeing machine, thermosol dyeing using a continuous dyeing machine, roller printing, screen printing, ink jet printing, sublimation, and the like.
- immersion dyeing such as liquid dyeing using a jigger dyeing machine or liquid dyeing machine
- thermosol dyeing using a continuous dyeing machine
- roller printing screen printing, ink jet printing, sublimation, and the like.
- a printing process on a napped surface by printing, vacuum sublimation printing, or the like can be used.
- various resin finishing processes can be performed after dyeing.
- the above-mentioned skin sheet can be given a design property on the surface as necessary.
- post-processing such as drilling such as perforation, embossing, laser processing, pin sonic processing, and print processing can be performed.
- the post-processing can be performed on the skin sheet alone or on the composite sheet after being bonded to the woven or knitted fabric.
- the skin sheet and the woven or knitted fabric are bonded together with an adhesive resin.
- a predetermined amount can be applied using an apparatus such as a rotary screen, a knife roll coater, a gravure roll coater, a kiss roll coater, or a calendar coater.
- an apparatus such as a rotary screen, a knife roll coater, a gravure roll coater, a kiss roll coater, or a calendar coater.
- it since it has a favorable texture as a composite sheet-like material, it is preferable to form a dot-like adhesive resin layer using a rotary screen or a gravure roll coater.
- Adhesion can be appropriately performed using a known method depending on the type of adhesive resin used.
- the composite sheet-like material of the present invention can be used in various fields such as a vehicle interior material, a furniture interior material, and a building material as a composite sheet-like material that has high strength and is flexible and excellent in moldability. It is suitably used as a skin material in a seat seat of a vehicle interior material that requires strength.
- Average single fiber diameter The average single fiber diameter is obtained by taking a scanning electron microscope (SEM) photograph of the cross section of the skin sheet, randomly selecting 100 circular or nearly elliptical fibers, measuring the single fiber diameter, and calculating the arithmetic average of 100 fibers. Calculated by calculating the value. In the case of adopting an extra-fine ultrafine fiber, the cross-sectional area of the single fiber was first measured, and the diameter of the single fiber was determined by calculating the equivalent circle diameter.
- the supernatant was taken out and measured under the following setting conditions in a gas chromatograph (5890 series II manufactured by Hewlett Packard, inlet: split / splitless inlet, detector: flame ionization detector), and a calibration curve described later was used. The content was determined.
- a calibration curve for 1,2-propanediol was prepared according to the following procedure.
- a 1,000 ⁇ g / ml aqueous solution of 1,2-propanediol was prepared as standard mother liquor B, and then 0.003 to 0.08 ml of standard mother liquor B and 0.025 ml of internal standard solution A were added to a 5 ml volumetric flask.
- the amount of the standard mother liquor B to be added is selected so that the concentration of 1,2-propanediol is sufficient for the measurement of the sample.
- the prepared standard solution C was measured under the above-mentioned conditions in gas chromatography, respectively, and then the peak area ratio of the obtained 1,2-propanediol and the internal standard substance and 1,2-propanediol in the standard solution C were A calibration curve of 1,2-propanediol was prepared by plotting the concentration ratio of the internal standard substance on a graph.
- Intrinsic viscosity (IV) of the polymer 0.8 g of the sample polymer is dissolved in 10 mL of orthochlorophenol (hereinafter, abbreviated as OCP), and the relative viscosity ⁇ r is obtained by the following equation using an Ostwald viscometer at a temperature of 25 ° C. Was calculated.
- OCP orthochlorophenol
- 10% circular modulus of woven or knitted fabric After carefully peeling the knitted and knitted fabric from the composite sheet, a 300 mm ⁇ circular test piece is cut out, and a gage between 200 mm is written in one direction per piece at the center of the test piece.
- the modulus at the time of 10% elongation was measured at a gripping interval of 200 mm and a tensile speed of 200 mm / min. The measurement is performed by sampling in each direction at angles of 0 degrees, 45 degrees, 90 degrees, and 135 degrees with respect to an arbitrarily drawn reference line, measuring four samples, and values in each direction. It was expressed by the width from the minimum value to the maximum value.
- Elongation at break of woven or knitted fabric After carefully peeling the woven or knitted fabric from the composite sheet, a test piece having a width of 25 mm and a length of 200 mm was cut out, and in JIS L 1096 (2010) 8.14.1 A method (constant speed extension method), With an Instron type tensile tester, the gripping interval was set to 100 mm, the tensile speed was set to 200 mm / min, and the elongation at break was defined as the elongation at break. The measurement is performed by sampling in each direction at angles of 0 degrees, 45 degrees, 90 degrees, and 135 degrees with respect to an arbitrarily drawn reference line, measuring four samples, and values in each direction. It was expressed by the width from the minimum value to the maximum value.
- ⁇ Reduction in strength of composite sheet after heating press (%) 100 ⁇ ⁇ (Tensile strength of composite sheet before heating press (N / cm)) ⁇ (Tensile strength of composite sheet after heating press) (N / cm)) ⁇ / Tensile strength (N / cm) of the composite sheet before heating and pressing.
- Abrasion resistance of composite sheet In the abrasion resistance test measured according to JIS L1096E method (2005) (Martindale method) load for furniture (12 kPa), the weight loss (wear loss) of the sheet-like material after wearing 20000 times was evaluated. 10 mg or less was accepted. In addition, if it is 5 mg or less, it can be judged that it is excellent.
- the entangled sheet obtained as described above was shrunk with hot water at a temperature of 96 ° C., and then impregnated with a 12% by mass PVA aqueous solution having a saponification degree of 88%, based on the solid fiber content.
- the sheet was squeezed with a target amount of 30% by mass and dried while migrating PVA with hot air at a temperature of 140 ° C. for 10 minutes to obtain a sheet with PVA.
- the sheet with PVA thus obtained is immersed in trichlorethylene, and squeezing and compressing with a mangle is performed 10 times to dissolve and remove sea components and compress the sheet with PVA.
- a sheet with seawater-free PVA formed by entanglement of the provided ultrafine fiber bundle was obtained.
- the compressed sheet with deseased PVA obtained as described above is impregnated with a DMF solution of polycarbonate polyurethane whose solid content concentration is adjusted to 13% by mass, and is squeezed at a target weight of 30% by mass with respect to the fiber content of the solid content.
- the polyurethane was coagulated in an aqueous solution having a DMF concentration of 30% by mass. Thereafter, PVA and DMF were removed with hot water and dried with hot air at a temperature of 120 ° C. for 10 minutes to obtain a sheet with polyurethane having a thickness of 1.7 mm.
- the sheet with polyurethane obtained as described above was cut in half in the thickness direction and then ground with an endless sandpaper to obtain a napped sheet having a thickness of 0.46 mm.
- the napped sheet obtained as described above is dyed black under a temperature condition of 120 ° C. using a liquid dyeing machine, dried using a dryer, and the average single fiber diameter of the ultrafine fibers was 3.1 ⁇ m, the basis weight was 170 g / m 2 , and a skin sheet A having a thickness of 0.5 mm was obtained.
- the island component polyethylene terephthalate (PET) containing 15 ppm of 1,2-propanediol component and having an intrinsic viscosity (IV) of 0.718 is used, and polystyrene having an MFR of 2.2 is used as the sea component.
- PET polyethylene terephthalate
- IV intrinsic viscosity
- MFR MFR of 2.2
- a skin sheet B having an average single fiber diameter of 4.4 ⁇ m, a basis weight of 170 g / m 2 and a thickness of 0.5 mm was obtained. Obtained.
- the island component polyethylene terephthalate (PET) containing 15 ppm of 1,2-propanediol component and having an intrinsic viscosity (IV) of 0.718 is used, and polystyrene having an MFR of 2.2 is used as the sea component.
- PET polyethylene terephthalate
- IV intrinsic viscosity
- polystyrene having an MFR of 2.2 is used as the sea component.
- melt spinning with an island component / sea component mass ratio of 90/10 at a spinning temperature of 285 ° C., drawing, and crimping using an indentation type crimper Processing was performed, and then cut into a length of 51 mm to obtain a raw material of sea-island type composite fiber having a single fiber fineness of 5.9 dtex.
- a skin sheet E having an average single fiber diameter of ultrafine fibers of 0.9 ⁇ m, a basis weight of 170 g / m 2 and a thickness of 0.5 mm was obtained in the same manner as in the production of the skin sheet A except that this raw cotton was used.
- the island component does not contain a component derived from 1,2-propanediol, uses polyethylene terephthalate (PET) having an intrinsic viscosity (IV) of 0.718, and uses a polystyrene having an MFR of 18 as a sea component, and has 16 islands.
- PET polyethylene terephthalate
- IV intrinsic viscosity
- MFR polystyrene having an MFR of 18 as a sea component
- a skin sheet G having an average single fiber diameter of 3.1 ⁇ m, a basis weight of 170 g / m 2 and a thickness of 0.5 mm was obtained in the same manner as in the production of the skin sheet A except that this raw cotton was used. Obtained.
- a laminated fiber web was formed through a card and a cross wrapper process.
- a single yarn composed of a single component having an intrinsic viscosity (IV) of 0.65 and multifilaments (84 dtex, 72 filaments) having a twist number of 2500 T / m were used as warp and weft, and the weave density was 97 warps / 2.
- needle punching was performed at a punch number of 2400 / cm 2 , the thickness was 3.4 mm, and the density was An entangled sheet (felt) of 0.22 g / cm 3 was obtained.
- the entangled sheet obtained as described above was shrunk with hot water at a temperature of 96 ° C., and then impregnated with a PVA aqueous solution of 5% by mass with a saponification degree of 88%, The sheet was squeezed at a target amount of 7.5% by mass, and dried while migrating PVA with hot air at a temperature of 140 ° C. for 10 minutes to obtain a sheet with PVA.
- the sheet with PVA thus obtained is immersed in trichlorethylene, and squeezing and compressing with a mangle is performed 10 times to dissolve and remove sea components and compress the sheet with PVA.
- a sheet with seawater-free PVA formed by entanglement of the provided ultrafine fiber bundle was obtained.
- the compressed sheet with deseased PVA obtained as described above was impregnated with a DMF solution of polycarbonate polyurethane whose solid content concentration was adjusted to 11.3% by mass, and a target weight of 26% by mass with respect to the fiber content of the solid content.
- the polyurethane was coagulated in an aqueous solution having a DMF concentration of 30% by mass. Thereafter, PVA and DMF were removed with hot water and dried with hot air at a temperature of 120 ° C. for 10 minutes to obtain a 1.6 mm thick polyurethane sheet.
- the sheet with polyurethane obtained as described above was cut in half in the thickness direction and then ground with an endless sandpaper to obtain a raised sheet having a thickness of 0.55 mm.
- the napped sheet obtained as described above is dyed black under a temperature condition of 120 ° C. using a liquid dyeing machine, dried using a dryer, and the average single fiber diameter of the ultrafine fibers was 3.1 ⁇ m, the basis weight was 250 g / m 2 , and a skin sheet G having a thickness of 0.6 mm was obtained.
- a polyethylene terephthalate (PET) containing 15 ppm of a component derived from 1,2-propanediol and having an intrinsic viscosity (IV) of 0.68 was spun and stretched to obtain a composite fiber of 110 dtex 48 filaments.
- the satin knitted fabric obtained using a 28-gauge single tricot machine is contracted in hot water at a temperature of 120 ° C. using a liquid dyeing machine, and the thickness is 0.64 mm.
- a knitted fabric having a basis weight of 210 g / m 2 was obtained.
- the value of the 10% circular modulus in any direction of the knitted fabric was in the range of 15 to 31 N / cm, and the tensile elongation in the arbitrary direction was in the range of 50 to 64%.
- ⁇ Manufacture of woven and knitted fabric B Manufactured in the same manner as Woven Knitting A except that the content of 1,2-propanediol-derived component in PET is 72 ppm, and a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 is obtained. It was. The value of the 10% circular modulus in any direction of the knitted fabric was in the range of 16 to 31 N / cm, and the tensile elongation in the arbitrary direction was in the range of 51 to 63%.
- a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 was produced in the same manner as in the woven knitted fabric A except that the content of the component derived from 1,2-propanediol in PET was 195 ppm. .
- the value of 10% circular modulus in any direction of the knitted fabric was in the range of 14 to 30 N / cm, and the tensile elongation in any direction was in the range of 49 to 65%.
- ⁇ Manufacture of woven and knitted fabric D Manufactured in the same manner as Woven Knitting A except that the content of 1,2-propanediol-derived component in PET is 7 ppm, and a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 is obtained. It was. The value of the 10% circular modulus in any direction of the knitted fabric was in the range of 17 to 32 N / cm, and the tensile elongation in any direction was in the range of 48 to 59%.
- ⁇ Manufacture of woven and knitted fabric E Manufactured in the same manner as Woven Knitting A except that the content of 1,2-propanediol-derived component in PET is 408 ppm, and a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 is obtained. It was. The value of the 10% circular modulus in any direction of the knitted fabric was in the range of 13 to 30 N / cm, and the tensile elongation in the arbitrary direction was in the range of 47 to 57%.
- ⁇ Manufacture of woven and knitted fabric F Manufactured in the same manner as Woven Knitting A except that the content of 1,2-propanediol-derived component in PET is 2 ppm, and a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 is obtained. It was. The value of the 10% circular modulus in any direction of the knitted fabric was in the range of 16 to 33 N / cm, and the tensile elongation in the arbitrary direction was in the range of 48 to 60%.
- a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 was obtained in the same manner as in the woven knitted fabric A except that PET does not contain a component derived from 1,2-propanediol.
- the value of the 10% circular modulus in any direction of the knitted fabric was in the range of 14 to 29 N / cm, and the tensile elongation in the arbitrary direction was in the range of 53 to 65%.
- a knitted fabric having a thickness of 0.64 mm and a basis weight of 210 g / m 2 was produced in the same manner as the woven knitted fabric A except that the content of 1,2-propanediol-derived component in PET was 612 ppm. .
- the value of the 10% circular modulus in any direction of the knitted fabric was in the range of 17 to 33 N / cm, and the tensile elongation in the arbitrary direction was in the range of 47 to 61%.
- Example 1 ⁇ Skin sheet and woven / knitted fabric>
- the above-described skin sheet A was used as the skin sheet, and the above-mentioned woven or knitted fabric A (knitted fabric) was used as the woven or knitted fabric.
- Example 2 ⁇ Skin sheet and woven / knitted fabric> The above-described skin sheet A was used as the skin sheet, and the above-mentioned woven or knitted fabric B was used as the woven or knitted fabric. ⁇ Lamination of skin sheet and woven / knitted fabric> A composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet A and the woven / knitted fabric B were used. The obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 3%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 3 ⁇ Skin sheet and woven / knitted fabric> The above-mentioned skin sheet A was used as the skin sheet, and the above-mentioned woven or knitted fabric C was used as the woven or knitted fabric. ⁇ Lamination of skin sheet and woven / knitted fabric> A composite sheet-like material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the above-described skin sheet A and woven / knitted fabric C were used. The obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 4%, indicating that the strength reduction during thermoforming was small. The results are shown in Table 1.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet A and the woven or knitted fabric D were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 4%, indicating that the strength reduction during thermoforming was small.
- the results are shown in Table 1.
- Example 5 ⁇ Skin sheet and woven / knitted fabric>
- the above-mentioned skin sheet A was used as the skin sheet
- the above-mentioned woven or knitted fabric E was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the above-described skin sheet A and woven or knitted fabric E were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 5%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- a composite sheet-like material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the above-described skin sheet A and woven / knitted fabric F were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 5%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 7 ⁇ Skin sheet and woven / knitted fabric>
- the above-described skin sheet B was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet B and the woven or knitted fabric A were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 8 ⁇ Skin sheet and woven / knitted fabric>
- the above-mentioned skin sheet C was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet C and the woven / knitted fabric A were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 9 ⁇ Skin sheet and woven / knitted fabric>
- the above-mentioned skin sheet D was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet D and the woven or knitted fabric A were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 10 ⁇ Skin sheet and woven / knitted fabric>
- the above-described skin sheet E was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet E and the woven or knitted fabric A were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- Example 11 ⁇ Skin sheet and woven / knitted fabric>
- the above-described skin sheet F was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the skin sheet F and the woven or knitted fabric A were used.
- the obtained composite sheet is slightly inferior in wear resistance but has a soft texture and high strength.
- the strength reduction rate after hot pressing is 2%, and the strength reduction during thermoforming is small. Met.
- the results are shown in Table 1.
- Example 12 ⁇ Skin sheet and woven / knitted fabric> The above-described skin sheet A was used as the skin sheet, and the above-mentioned woven or knitted fabric A was used as the woven or knitted fabric.
- Example 13 ⁇ Skin sheet and woven / knitted fabric>
- the above-mentioned skin sheet G was used as the skin sheet, and the above-mentioned woven or knitted fabric I was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 360 g / m 2 and a thickness of 1.0 mm was obtained in the same manner as in Example 1 except that the skin sheet G and the woven or knitted fabric I were used.
- the obtained composite sheet was slightly inferior in form stability but had a soft texture, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. .
- the results are shown in Table 1.
- Example 14 ⁇ Skin sheet and woven / knitted fabric>
- the above-described skin sheet G was used as the skin sheet, and the above-mentioned woven or knitted fabric J was used as the woven or knitted fabric.
- a composite sheet material having a basis weight of 360 g / m 2 and a thickness of 1.0 mm was obtained in the same manner as in Example 1 except that the skin sheet G and the woven or knitted fabric I were used.
- the obtained composite sheet-like material had a soft texture and high strength, and the strength reduction rate after hot pressing was 2%, and the strength reduction during thermoforming was small. The results are shown in Table 1.
- a composite sheet material having a basis weight of 400 g / m 2 and a thickness of 1.1 mm was obtained in the same manner as in Example 1 except that the above-described skin sheet A and woven or knitted fabric E were used. Although the obtained composite sheet-like material has a soft texture and high strength, the strength reduction rate after hot pressing was 6%, which was slightly inferior to the strength reduction during thermoforming. The results are shown in Table 1.
- 1,2-propanediol-derived components are contained in 1 to 500 ppm in the fibers constituting the woven or knitted fabric.
- the composite sheet-like material is less susceptible to strength reduction during thermoforming.
- the strength reduction rate of the composite sheet-like material after hot pressing is as follows: the composite sheet-like material containing 1 to 500 ppm of 1,2-propanediol-derived components in the fibers constituting the woven or knitted fabric It becomes large compared.
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Abstract
Description
・加熱プレス後の複合シート状物の強度低下(%)=100×{(加熱プレス前の複合シート状物の引張強度(N/cm))―(加熱プレス後の複合シート状物の引張強度(N/cm))}/加熱プレス前の複合シート状物の引張強度(N/cm)。
(1)平均単繊維直径:
平均単繊維直径は、表皮シート断面の走査型電子顕微鏡(SEM)写真を撮影し、円形または円形に近い楕円形の繊維をランダムに100本選び、単繊維直径を測定して100本の算術平均値を計算することにより算出した。異型断面の極細繊維を採用した場合には、まず単繊維の断面積を測定し、円相当径を算出することによって単繊維の直径を求めた。
始めに1,2-ブタンジオールの1000μg/ml水溶液を調製し、これを内部標準液Aとした。試料0.1gをバイアルに秤量し、これに内部標準液Aを0.015mlと、アンモニア水1mlを加えて密栓し、150℃の温度で3時間加熱した後、室温(25℃)まで放冷した。続いて、メタノール2mlと、テレフタル酸2.0gを加えた後、15分間振とうし、4000Gで3分間遠心分離した。上澄み液を取り出し、ガスクロマトグラフ(Hewlett Packard社製5890 seriesII、注入口:スプリット/スプリットレス注入口、検出器:水素炎イオン化検出器)において、次の設定条件で測定し、後述する検量線を用いて含有量を求めた。
・インジェクタ温度:220℃
・カラムヘッド圧:20psi
・キャリアガス:ヘリウム
・試料導入方法:分割(線流速 25ml/分)
・隔壁パージ:ヘリウム 3.0ml/分
・試料導入量:1.0μl
・ディテクタ温度:220℃
・ガス流量:水素40ml/分,空気400ml/分,窒素40ml/分
・オーブン昇温開始温度:60℃(保持時間2分)
・オーブン昇温停止温度:220℃(保持時間2分)
・オーブン昇温速度:20℃/分(直線傾斜)。
オルソクロロフェノール(以下、OCPと略記することがある。)10mL中に試料ポリマーを0.8g溶かし、25℃の温度においてオストワルド粘度計を用いて相対粘度ηrを次式により求め、固有粘度IVを算出した。
・ηr=η/η0=(t×d)/(t0×d0)
・固有粘度IV=0.0242ηr+0.2634
(ここで、ηはポリマー溶液の粘度、η0はOCPの粘度、tは溶液の落下時間(秒)、dは溶液の密度(g/cm3)、t0はOCPの落下時間(秒)、d0はOCPの密度(g/cm3)を、それぞれ表す。)。
複合シート状物から織編物を注意深く剥離したのちに、300mmφの円形試験片を切り出し、試験片の中央部に、200mm間の標点を1片につき1方向記し、インストロン型引張試験機で、つかみ間隔を200mmとし、引張速度を200mm/分として、10%伸長時のモジュラスを測定した。測定は、任意に引いた基準線に対して0度、45度、90度、135度の角度をなす各々の方向でのサンプリングを行い、4点の試料について測定し、各々の方向での値を求め、最小値から最大値での幅でもって示した。
複合シート状物から織編物を注意深く剥離したのちに、幅が25mmで、長さが200mmの試験片を切り出し、JIS L 1096(2010)8.14.1 A法(定速伸長法)において、インストロン型引張試験機で、つかみ間隔を100mmとし、引張速度を200mm/分として引っ張り、破断時の伸長率を破断伸度とした。測定は、任意に引いた基準線に対して0度、45度、90度、135度の角度をなす各々の方向でのサンプリングを行い、4点の試料について測定し、各々の方向での値を求め、最小値から最大値での幅でもって示した。
JIS L 1096(2010)の8.39(c)(プレス処理による寸法変化)よりH-1(乾熱加圧法)によって、プレス機に試験片(複合シート状物)の表面を下にして設置し、180℃の温度に加熱したプレス機の上ごてを20kPaの圧力で20秒間押し当てた。その後、試験片の引張強度を測定し、次の式から加熱プレス後の強度低下を算出し、熱成型後の強度低下として評価した。
・加熱プレス後の複合シート状物の強度低下(%)=100×{(加熱プレス前の複合シート状物の引張強度(N/cm))―(加熱プレス後の複合シート状物の引張強度(N/cm))}/加熱プレス前の複合シート状物の引張強度(N/cm)。
(7)複合シート状物の耐摩耗性:
JIS L1096E法(2005)(マーチンデール法)家具用荷重(12kPa)に準じて測定される耐摩耗試験において、20000回の回数を摩耗した後のシート状物の重量減(摩耗減量)を評価し、10mg以下を合格とした。なお、5mg以下であれば優良であると判断できる。
次の符号をもって、表記した。
・DMF:N,N-ジメチルホルムアミド
・PET:ポリエチレンテレフタレート
・PVA:ポリビニルアルコール。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが18のポリスチレンを用い、島数が16島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を55/45として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が3.0dtexの海島型複合繊維の原綿を得た。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが2.2のポリスチレンを用い、島数が16島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を80/20として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が4.2dtexの海島型複合繊維の原綿を得た。この原綿を用いたこと以外は、表皮シートAの製造と同様にして、極細繊維の平均単繊維直径が4.4μmで、目付が170g/m2で、厚みが0.5mmの表皮シートBを得た。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが18のポリスチレンを用い、島数が36島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を55/45として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が2.8dtexの海島型複合繊維の原綿を得た。この原綿を用いた以外は表皮シートAの製造と同様にして極細繊維の平均単繊維直径が2.0μmで、目付が170g/m2で、厚みが0.5mmの表皮シートCを得た。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが2.2のポリスチレンを用い、島数が16島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を90/10として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が5.9dtexの海島型複合繊維の原綿を得た。この原綿を用いた以外は表皮シートAの製造と同様にして極細繊維の平均単繊維直径が5.5μmで、目付が170g/m2で、厚みが0.5mmの表皮シートDを得た。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが18のポリスチレンを用い、島数が36島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を20/80として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が1.6dtexの海島型複合繊維の原綿を得た。この原綿を用いた以外は表皮シートAの製造と同様にして極細繊維の平均単繊維直径が0.9μmで、目付が170g/m2で、厚みが0.5mmの表皮シートEを得た。
島成分に1、2-プロパンジオール由来の成分を含まず、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが18のポリスチレンを用い、島数が16島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を55/45として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が3.0dtexの海島型複合繊維の原綿を得た。この原綿を用いたこと以外は、表皮シートAの製造と同様にして、極細繊維の平均単繊維直径が3.1μmで、目付が170g/m2で、厚みが0.5mmの表皮シートGを得た。
島成分として1、2-プロパンジオール成分を15ppm含み、固有粘度(IV)が0.718のポリエチレンテレフタレート(PET)を用い、また海成分としてMFRが18のポリスチレンを用い、島数が16島/ホールの海島型複合用口金を用いて、紡糸温度が285℃で、島成分/海成分質量比率を55/45として溶融紡糸した後、延伸し、押し込み型捲縮機を用いて捲縮加工処理を施し、その後、51mmの長さにカットして単繊維繊度が3.0dtexの海島型複合繊維の原綿を得た。
1、2-プロパンジオール由来の成分を15ppm含み、固有粘度(IV)が0.68のポリエチレンテレフタレート(PET)を紡糸し延伸した後、110デシテックス48フィラメントの複合繊維を得た。これを仮撚りした後、28ゲージのシングルトリコット機を用いて得られたサテン編物を、液流染色機を用いて120℃の温度の熱水中で収縮処理を行い、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は15~31N/cmの範囲であり、任意の方向の引張伸度は50~64%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が72ppmであること以外は、織編物Aと同様にして製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は16~31N/cmの範囲であり、任意の方向の引張伸度は51~63%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が195ppmであること以外は、織編物Aと同様に製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は14~30N/cmの範囲であり、任意の方向の引張伸度は49~65%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が7ppmであること以外は、織編物Aと同様にして製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は17~32N/cmの範囲であり、任意の方向の引張伸度は48~59%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が408ppmであること以外は、織編物Aと同様にして製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は13~30N/cmの範囲であり、任意の方向の引張伸度は47~57%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が2ppmであること以外は、織編物Aと同様にして製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は16~33N/cmの範囲であり、任意の方向の引張伸度は48~60%の範囲であった。
PET中に1、2-プロパンジオール由来の成分を含まないこと以外は、織編物Aと同様に製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は14~29N/cmの範囲であり、任意の方向の引張伸度は53~65%の範囲であった。
PET中の1、2-プロパンジオール由来の成分の含有量が612ppmであること以外は、織編物Aと同様に製造し、厚みが0.64mmで、目付が210g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は17~33N/cmの範囲であり、任意の方向の引張伸度は47~61%の範囲であった。
1、2-プロパンジオール由来の成分を15ppm含み、固有粘度(IV)が0.68のポリエチレンテレフタレート(PET)を紡糸し延伸した後、44デシテックス18フィラメントの複合繊維を得た。これを仮撚りした後、28ゲージのシングルトリコット機を用いて得られた80g/m2のサテン編物を、黒色に浸染し、厚みが0.30mmで、目付が90g/m2の編物を得た。この編物の任意の方向の10%円形モジュラスの値は4~10N/cmの範囲であり、任意の方向の引張伸度は39~64%の範囲であった。
1、2-プロパンジオール由来の成分を15ppm含み、固有粘度(IV)が0.68のポリエチレンテレフタレート(PET)を紡糸し延伸した後、56デシテックス24フィラメントの複合繊維を得た。これを仮撚りした後、1500T/Mの強撚糸とし、タテ糸およびヨコ糸に用いてウォータージェット織機にて製織し、得られた80g/m2のサテン織物を、黒色に浸染し、厚みが0.30mmで、目付が90g/m2の織物を得た。この編物の任意の方向の10%円形モジュラスの値は12~13N/cmの範囲であり、任意の方向の引張伸度は53~67%の範囲であった。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物A(編物)を用いた。
ポリウレタン系接着剤を、グラビアロールコーターを用いて、上記の織編物Aにドット状に20g/m2塗布した後、表皮シートAの裏面(立毛面の反対側)と織編物Aを合わせて接着し、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Bを用いた。
<表皮シートと織編物の貼り合わせ>
上記の表皮シートAと織編物Bを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は3%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Cを用いた。
<表皮シートと織編物の貼り合わせ>
上記の表皮シートAと織編物Cを用いた以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は4%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Dを用いた。
上記の表皮シートAと織編物Dを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は4%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Eを用いた。
上記の表皮シートAと織編物Eを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は5%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Fを用いた。
上記の表皮シートAと織編物Fを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は5%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートBを用い、織編物として上記の織編物Aを用いた。
上記の表皮シートBと織編物Aを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートCを用い、織編物として上記の織編物Aを用いた。
上記の表皮シートCと織編物Aを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートDを用い、織編物として上記の織編物Aを用いた。
上記の表皮シートDと織編物Aを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートEを用い、織編物として上記の織編物Aを用いた。
上記の表皮シートEと織編物Aを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートFを用い、織編物として上記の織編物Aを用いた。
上記の表皮シートFと織編物Aを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、やや耐摩耗性に劣るものの柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Aを用いた。
ポリアミド系接着剤をグラビアロールコーターを用いて、上記の織編物Aにドット状に20g/m2塗布した後、表皮シートAの裏面(立毛面の反対側)と編物Aを合わせて150℃の温度に加熱されたヒートロールによって熱圧着することにより、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は5%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートGを用い、織編物として上記の織編物Iを用いた。
上記の表皮シートGと織編物Iを用いたこと以外は、実施例1と同様にして、目付が360g/m2で、厚みが1.0mmの複合シート状物を得た。得られた複合シート状物は、やや形態安定性に劣るものの柔軟な風合いを有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートGを用い、織編物として上記の織編物Jを用いた。
上記の表皮シートGと織編物Iを用いたこと以外は、実施例1と同様にして、目付が360g/m2で、厚みが1.0mmの複合シート状物を得た。得られた複合シート状物は、柔軟な風合いと高い強度を有しており、また加熱プレス後の強度低下率は2%と、熱成型時の強度低下が少ないものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Eを用いた。
上記の表皮シートAと織編物Eを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は柔軟な風合いと高い強度を有しているが、加熱プレス後の強度低下率は6%と、熱成型時の強度低下にやや劣るものであった。結果を表1に示す。
<表皮シートと織編物>
表皮シートとして上記の表皮シートAを用い、織編物として上記の織編物Fを用いた。
<表皮シートと織編物の貼り合わせ>
上記の表皮シートAと織編物Fを用いたこと以外は、実施例1と同様にして、目付が400g/m2で、厚みが1.1mmの複合シート状物を得た。得られた複合シート状物は柔軟な風合いと高い強度を有しているが、加熱プレス後の強度低下率は6%と、熱成型時の強度低下にやや劣るものであった。結果を表1に示す。
Claims (5)
- 平均単繊維直径が0.1~8μmの極細繊維からなる繊維絡合体と弾性重合体からなる表皮シートに、織編物が接着樹脂層を介して貼り合わされてなる複合シート状物であって、前記織編物がポリエステル繊維を構成成分として含み、前記ポリエステル繊維を構成するポリエステル中に1,2-プロパンジオール由来の成分を1~500ppm含有することを特徴とする複合シート状物。
- 接着樹脂層を構成する接着樹脂が湿気硬化型樹脂であることを特徴とする請求項1記載の複合シート状物。
- 湿気硬化型樹脂がポリウレタン樹脂を含むことを特徴とする請求項2記載の複合シート状物。
- 織編物の10%円形モジュラスの任意の方向の値が5N/cm以上40N/cm以下であり、かつ任意の方向の破断伸度が25%以上であることを特徴とする請求項1~3のいずれかに記載の複合シート状物。
- 繊維絡合体がポリエステル繊維を構成成分として含み、前記ポリエステル繊維を構成するポリエステル中に1,2-プロパンジオール由来の成分を1~500ppm含有することを特徴とする請求項1~4のいずれかに記載の複合シート状物。
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US16/613,862 US11084260B2 (en) | 2017-05-18 | 2018-04-02 | Composite sheet material |
JP2018517453A JP6908034B2 (ja) | 2017-05-18 | 2018-04-02 | 複合シート状物 |
EP18802752.8A EP3626445B1 (en) | 2017-05-18 | 2018-04-02 | Composite sheet material |
KR1020197036598A KR102337396B1 (ko) | 2017-05-18 | 2018-04-02 | 복합 시트상물 |
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US20230097764A1 (en) * | 2020-03-03 | 2023-03-30 | Toray Industries, Inc. | Clothes |
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