WO2005056913A1 - 皮革様シート状物およびその製造方法 - Google Patents
皮革様シート状物およびその製造方法 Download PDFInfo
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- WO2005056913A1 WO2005056913A1 PCT/JP2004/018853 JP2004018853W WO2005056913A1 WO 2005056913 A1 WO2005056913 A1 WO 2005056913A1 JP 2004018853 W JP2004018853 W JP 2004018853W WO 2005056913 A1 WO2005056913 A1 WO 2005056913A1
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- leather
- base material
- fibrous base
- sheet
- layer
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- D—TEXTILES; PAPER
- 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
- D06N3/142—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 mixture of polyurethanes with other resins in the same layer
- D06N3/143—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 mixture of polyurethanes with other resins in the same layer with polyurethanes and other polycondensation or polyaddition products, e.g. aminoplast
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- D—TEXTILES; PAPER
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- D—TEXTILES; PAPER
- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- D—TEXTILES; PAPER
- 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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
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- D—TEXTILES; PAPER
- 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
- 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
- D06N3/145—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 two or more layers of polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
- B32B2437/02—Gloves, shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2479/00—Furniture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2601/00—Upholstery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2369—Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
- Y10T442/679—Natural or synthetic rubber sheet or film
Definitions
- the present invention relates to a leather-like sheet material and a method for producing the same, and more particularly, to a leather-like sheet material optimal for a silver-finished artificial leather obtained by bonding a fibrous base material and an elastic film layer with an adhesive layer.
- the present invention relates to a sheet-like material and a method for manufacturing the same.
- Silver-like leather-like sheets having an elastic layer on the surface are used as artificial leather or synthetic leather for a wide range of applications, such as shoes, poles, dinghy, and the skin and clothing for furniture and vehicles.
- applications such as shoes, poles, dinghy, and the skin and clothing for furniture and vehicles.
- a leather-like sheet obtained by laminating an elastic film layer on a fibrous substrate has a relatively thick film layer and is excellent in abrasion resistance.
- Japanese Patent Application Laid-Open No. 9-31682 discloses a synthetic leather in which a film layer is formed of silicone-modified polyurethane.
- Japanese Patent Application Laid-Open No. 2000-248472 discloses that the film layer is a silicone-modified polyurethane resin crosslinked by a polyisocyanate-based curing agent and the adhesive layer is a non-crosslinked polyurethane.
- a leather-like sheet made of a tongue resin has been proposed.
- a first object of the present invention is to provide a leather-like sheet having excellent peel strength and flexibility while improving the abrasion resistance of the sheet, and production thereof. It is to provide a method. It is a second object of the present invention to provide a sheet-like material which does not use an organic solvent, that is, uses an adhesive with water as a solvent and contains substantially no organic solvent, and a method for producing the same. Means for solving the problem
- the object of the present invention is to provide a fibrous base material and an elastic film layer in which an adhesive layer comprising a silicone compound and comprising a water-soluble or water-dispersible elastic polymer is formed. It has been found that this can be achieved by a leather-like sheet characterized by being adhered through the skin.
- Another object of the present invention is to provide a method for producing a leather-like sheet by laminating a fibrous base material and an elastic film layer, wherein at least one of the fibrous base material and the elastic film layer is provided. It has been found that this can be achieved by a method for producing a leather-like sheet-like material, which comprises applying an aqueous solution or aqueous dispersion of an elastic polymer containing a silicone compound on a bonding surface and drying. Was done.
- Examples of the fiber constituting the fibrous base material in the leather-like sheet material of the present invention include, for example, Polyamide fibers such as nylon-6, nylon-66, nylon-610, nylon-11, nylon-12, etc .; polyethylene terephthalate, polytriethylene terephthalate, polybutylene terephthalate and copolyesters containing these as main components.
- Examples thereof include polyester fibers such as polymerized polyesters, and mixed fibers of several types of these.
- polyethylene terephthalate fiber or nylon 16 fiber is preferable in terms of production stability, cost, and the like. In particular, it is more preferable to mainly use polyester fibers as the fibers, since the effects of the present invention are more efficiently exhibited.
- the fineness of these fibers is preferably as small as possible, 0.0001 dt ex to 2 dte X is generally used. More preferably, it is 0.001 to 0.3 dtex. In the case of fibers having a fineness exceeding 2 dtex, the texture tends to be too hard for a leather-like sheet.
- the fibers constituting the fibrous base material are preferably splittable fibers, and more preferably splittable fibers made of polyester and nylon. These fibers can be obtained by a conventionally known spinning method. When the fineness is reduced, for example, a method of producing a mixed spun fiber, sea-island spun fiber or exfoliated split fiber can be applied.
- the fibers constituting the fibrous base material are preferably long fibers. Normally, nonwoven fabrics are formed from short fibers of 10 cm or less, but by using continuous long fibers, it is possible to balance the texture and the strength in the vertical and horizontal directions. In addition, the fibers are less likely to fall off from the cross section of the sheet material and the like, and the back surface has an excellent tactile feel.
- the apparent density of the fiber aggregate in the fibrous base material is preferably in the range of 0.25 to 0.35 gZcm 3 .
- the fibers are entangled with a needle punch or the like and then contracted. It is appropriate that the shrinkage at this time is 20 to 50% smaller than the original area.
- the fibrous base material used in the present invention include not only a fiber aggregate substantially composed of the above-mentioned fibers, but also a composite including an elastic polymer in the fiber aggregate.
- the fiber aggregate a woven fabric, a knitted fabric, a nonwoven fabric, or the like, which has been used as conventional artificial leather or synthetic leather, is preferably used.
- the composite composed of the fiber aggregate and the elastic polymer is a composite of the above-mentioned fiber aggregate and a hydrophilic polymer.
- a solution or dispersion of the hydrophilic polymer is added to the fiber aggregate.
- These are impregnated and dried so-called impregnated composites, or those obtained by forming layers of the same or different hydrophilic polymers on the surface of these impregnated composites.
- the hydrophilic polymer include SBR, NBR, polyurethane, polyester elastomer, and acrylate.
- a solution in which the elastic polymer is dissolved in a solvent or a dispersion in which the hydrophilic polymer is dispersed in a dispersion medium is impregnated into the fiber assembly.
- a method of extracting or evaporating a solvent or a dispersion medium by extraction or evaporation is used.
- a method using an aqueous dispersion of an elastic polymer is preferable in terms of working environment and the like.
- Other methods include a method of impregnating a fibrous structure with a hot melt of an elastic polymer, a method of forming an elastic polymer after impregnating a raw material of a hydrophilic polymer, or an unreacted intermediate. .
- the surface of the elastic polymer is determined by the degree of scraping of the residual liquid. Some are formed, or some are mixed with fibers and elastic polymers. It is sufficient if there is a small amount of fiber on the surface, but it is more effective to have a large amount of fiber.
- Such a fibrous base material preferably has a thickness of 0.5 to 2 mm.
- the leather-like sheet of the present invention has a structure in which the fibrous base material and the elastic film layer are bonded.
- This elastic film layer is mainly formed of an elastic polymer.
- the bow-single polymer used here examples include SBR, NBR, polyurethane, polyester elastomer, acrylate, and the like. Among them, polyurethane is preferable, and polycarbonate polyether-based polyurethane is preferable, or non-yellowing type polyurethane is preferable.
- the leather-like sheet can have excellent durability and flexibility as a surface.
- this film layer is formed on release paper. It is preferable that it is formed.
- a method of forming a film layer of an elastic polymer on release paper a solution in which the elastic polymer is dissolved in a solvent or a dispersion in which the elastic polymer is dispersed in a dispersion medium is coated on release paper, A method of evaporating the solvent or the dispersion medium can be used. Among them, a method using an aqueous dispersion of an elastic polymer is preferable in terms of working environment and the like.
- the thickness of the film layer should be determined to be a thickness suitable for the texture in balance with the thickness of the fibrous base material, but it is generally preferably 10 ⁇ m to 100 x m, and 3 It is particularly preferred that it is 0 to 70 / m. If the thickness is less than 10 m, it tends to be difficult to obtain the surface properties of the leather-like sheet, such as yellowing resistance, hydrolysis resistance, and adhesion. On the other hand, if the thickness exceeds 100 m, the texture of the surface tends to be hard, and it tends to be difficult to obtain a texture like a leather-like sheet.
- the leather-like sheet material of the present invention has a structure in which the fibrous base material and the elastic film layer are bonded with an adhesive, and in this case, the adhesive is a layer made of an elastic polymer.
- the adhesive is water-soluble or water-dispersible, and the adhesive contains a silicone compound. Therefore, the leather-like sheet-like material of the present invention is obtained by applying an adhesive to either one of the surface of the previously prepared fibrous base material and the surface of the viscous film layer, and bonding the fibrous base material and the elastic film layer. It is manufactured by a so-called laminating method in which it is bonded and dried via an adhesive layer.
- the adhesive is an aqueous solution or aqueous dispersion of an elastic polymer, and the aqueous solution or aqueous dispersion containing a silicone compound is used.
- the adhesive forming the adhesive layer is an elastic polymer, specifically, a polyurethane-based or polyolefin-based adhesive.
- a polyurethane-based adhesive is preferred. This gives a leather-like sheet having excellent properties.
- polyurethanes polycarbonate Z polyester-based polyurethane is preferred, and the skin layer composed of the film layer of the leather-like sheet and the adhesive layer has excellent durability and flexibility.
- the adhesive of the present invention is water-soluble or water-dispersible, and is used in the form of an aqueous solution or aqueous dispersion. Because it is such an aqueous adhesive, it contains silicone compounds. It can be easily contained.
- adhesives dissolve in polar organic solvents but hardly dissolve in nonpolar organic solvents. Silicone compounds do not dissolve in polar organic solvents but dissolve in nonpolar organic solvents. In the present invention, these adhesive problems can be solved because the adhesive is water-based rather than organic solvent-based.
- the texture of the obtained leather-like sheet is improved.
- a conventional method for producing a leather-like sheet material for example, artificial leather
- this method includes an organic solvent. Because of this, it is difficult to control the thickness of the adhesive that permeates the fibrous base material, and the texture tends to vary.
- the organic solvent is a good solvent for the elastic polymer contained in the fibrous base material, the swelling or dissolving of the conductive polymer and re-adhering, the texture of the original fibrous base material is reduced. Easy to damage.
- an aqueous adhesive since an aqueous adhesive is used, no adverse effect on the texture due to the organic solvent at the time of bonding occurs.
- an aqueous adhesive is generally a cross-linking reaction type, that is, a so-called two-part adhesive, in order to solve the problem since the obtained film is easily swelled or dissolved in water.
- the cross-linking agent used herein include melamine-based, polyisocyanate-based, and epoxy-based ones. Among them, the polyisocyanate-based one is preferable in terms of working environment and flexibility.
- the aqueous solution or the aqueous dispersion of the adhesive used in the present invention contains a silicone compound.
- the silicone compound include dimethyl silicone oil, polymer dimethyl silicone, amino-modified silicone oil, and polymer amino-modified silicone.
- reactive H-silicone, or modified compounds thereof, and the like, and these may be used as a mixture.
- reactive H-silicone, particularly methyl hydrogen silicone oil is preferable, and has a great effect of softening and improving abrasion resistance.
- the reactive H-silicone is a silicone containing a Si-1H group. These silicone compounds are converted to fibrous It is believed that a solidified silicone film is formed between the fibers in the surface layer of the material and the adhesive surface. And this silicone film reduces the coefficient of friction between the fiber and the adhesive, increases the degree of freedom of the fiber and makes it flexible, and the flexibility and the like alleviates the mechanical stimulus during friction and improves the wear resistance.
- the silicone compound used in the present invention is preferably used as an aqueous dispersion or an aqueous solution using an emulsifier.
- a silicone compound is used by being mixed with an aqueous dispersion or an aqueous solution which is an aqueous adhesive.
- reactive H-silicone is particularly preferred, which further enhances softening and abrasion resistance. This is because an adhesive is applied and a solvent or a dispersion medium is used. When the water is dried, the oily H-silicone is repelled to the surface of the adhesive as the adhesive solidifies, and then the H-silicon reacts and solidifies to form a fibrous base material. This is considered to prevent adhesion restraint between the adhesive and the fibers constituting the fibrous base material when the film and the film layer are bonded together and dried.
- the content of the silicone compound in the adhesive solid component in the adhesive layer of the present invention is preferably 0.5 to 8% by weight.
- the amount of the silicone compound is small, the softening effect and the abrasion resistance improving effect tend to decrease. If the amount of the silicon compound is too large, the adhesive strength tends to decrease due to the decrease in the strength of the adhesive layer, and the bending resistance tends to decrease.
- a particularly preferred content of the silicone compound is 1.0 to 4.0% by weight in terms of solid content.
- the viscosity of the adhesive liquid of the present invention is preferably from 3,000 to 10,000, and OO OmPas. If the viscosity is too low, the adhesive easily penetrates into the fibrous base material and tends to be hard. If the viscosity is too high, the adhesiveness between the fibrous base material and the film layer tends to decrease, and the adhesive strength tends to decrease.
- the thickness of the adhesive layer of the present invention is preferably from 30 to L 50 m, and particularly preferably from 50 to 120 m.
- the adhesive layer is a layer in which a layer made of an elastic polymer is continuous. For example, even when applied to the surface of a fibrous base material, if the applied elastic polymer solution permeates too much and becomes discontinuous, it does not become an adhesive layer. Therefore In some cases, the “penetration depth” of the adhesive into the substrate does not become part of the “adhesive layer”.
- the adhesive layer may contain air-containing microcapsule particles.
- the inclusion of the bubble-containing mic mouth capsule particles in the adhesive layer makes the adhesive layer porous, improves the flexibility of the leather-like sheet-like material, and increases the thickness of the adhesive layer to produce a leather-like material. The wear resistance of the sheet is improved.
- the bubble-containing microcapsule particles are contained in the adhesive layer in an amount of 0.
- the adhesive liquid obtained by mixing the heat-expandable microcapsule particles in an aqueous solution or aqueous dispersion of the adhesive is mixed with a fibrous base material and Z or elastic
- the method is preferably applied to the body film layer, dried, and the fibrous base material and the elastic body film layer are laminated and adhered.
- This heating temperature is preferably performed using a roll with a metal heating cylinder at 100 to 130 ° C.
- the heat-expandable micro-force particles preferably have a size (diameter) of 10 to 30 m, and advantageously have a thermal expansion onset temperature of 80 to 120 ° C.
- the thermally expandable microcapsule particles are microcapsule capsule particles having a shell wall made of a copolymer of vinylidene diacrylonitrile chloride, and commercially available particles can be used. Since the leather-like sheet of the present invention is an adhesive layer made of a water-soluble or water-dispersible elastic polymer, the amount of the organic solvent contained therein can be reduced.
- the leather-like sheet of the present invention preferably has an organic solvent content of 0.05 wt% or less. More preferably, it is 0 to 0.03 wt%.
- the organic solvent lower the content of the organic solvent, the lower the amount of the organic solvent volatilized from the adhesive layer during use. Further, from the viewpoint of durability, it is preferable that the organic solvent resistance is high, and it is preferable that the organic solvent is not dissolved because the shape does not change when the organic solvent is touched.
- examples of the organic solvent include DMF, MEK, toluene, methyl alcohol, and isopropyl alcohol.
- the leather-like sheet of the present invention comprises a fibrous base material and an elastic film layer.
- the adhesive layer also exists as an intermediate layer, and the adhesive layer is 15 to 50, preferably from the surface of the fibrous base material at the contact interface with the fibrous base material. It is preferred that the metal has a thickness of 20 to 45 and penetrates into and joins the fibrous base material.
- One of the methods for penetrating the adhesive layer into the fibrous base material at the above-mentioned thickness is to treat the surface of the fibrous base material with an aqueous solution or aqueous dispersion of an elastic polymer containing a silicone compound. Is applied in advance, and the treatment liquid is allowed to penetrate from the surface of the fibrous base material in a range of 15 to 50 xm so as to sink, then dried, and then an aqueous solution or dispersion of an elastic polymer is applied to the applied surface. This is a method of bonding elastic film layers.
- the concentration of the aqueous dispersion or aqueous solution of the elastic polymer (adhesive) used as the treatment liquid must be 20 to 65% by weight, and more preferably 40 to 60% by weight. Is preferred. If the concentration is less than 20% by weight, the abundance ratio of the elastic polymer on the surface of the fibrous base material cannot be sufficiently increased, and the wear resistance cannot be improved. On the other hand, when the concentration exceeds 60%, the texture of the obtained artificial leather, particularly the texture of the surface, becomes undesirably hard. It is preferable that the viscosity is in the range of 1, 000 to 20, 20 OO mPas.
- the method of applying the treatment liquid on the surface of the fibrous base material is not particularly limited, but, for example, if a knife coating method is used in which the treatment liquid existing on the base material is scraped off with a knife having a defined clearance, is adopted. Good.
- the adhesion amount of the adhesive is preferably 15 to 60 g / m 2 in terms of the weight of the solid content after drying. If the amount of the applied adhesive (permeable polymer) exceeds 60 g / m 2 , it is necessary to deepen the penetration due to a hard texture or a large amount of adhesive.
- the adhesive layer has a composition comprising (i) a water-soluble or water-dispersible elastic polymer containing a silicon compound or ( The adhesive layer is composed of a water-soluble or water-dispersible elastic polymer containing an i O silicone compound and air bubble-containing microcapsule particles, and the adhesive layer has any one of the above-mentioned compositions (i) and (ii).
- the composition may be a homogeneous composition or a heterogeneous composition as described below, for example, the adhesive layer may be composed of two or more layers having different compositions.
- the adhesive layer can be composed of multiple layers as exemplified below, and in the following example, the case where the number of the adhesive layers is two is described to simplify the description.
- Has three layers or The first layer means a layer on the fibrous base material side, and the second layer means a layer on the elastic film layer side.
- the first layer and the second layer both contain a silicone compound, but are composed of layers having different compositions. In this case, it is desirable that the first layer has a higher content of the silicone compound than the second layer.
- the first layer comprises a silicone compound
- the second layer comprises a layer having a composition not containing a silicone compound
- both the first layer and the second layer are further composed of a composition further containing microbubble-containing capsule particles containing bubbles.
- both the first layer and the second layer are further composed of a composition containing microcapsule particles containing bubbles.
- the first layer is a layer having a composition containing the silicone compound and substantially not containing the bubble-containing microcapsules, while the second layer is substantially free of the silicone compound and contains bubbles. It is composed of a layer composed of a composition containing microcapsule particles.
- the above examples (a) to (e) are for the case where the adhesive layer is composed of two layers, and may be three or more layers with some modifications. In the above examples, (a), (b) and (e) are preferred, and (e) is particularly preferred.
- the leather-like sheet of the present invention is in contact with the surface of the fibrous base material or the elastic film layer. It is manufactured by a method of applying a binder solution and finally bonding and drying the fibrous base material and the film layer. More specifically, for example, as a film layer, a coating film of an elastic polymer is formed on release paper, an adhesive liquid containing a silicone compound is applied thereon, and after drying, the fibrous base material is laminated. Glue under any pressure.
- the adhesive penetrates between the fibers, the silicone compound effectively acts, and the softening effect and the abrasion resistance improving effect are obtained. Demonstrate.
- the silicone compound discharged on the surface of the adhesive liquid exerts a mold release effect, preventing the adhesive from adhering to the fibers and maintaining the degree of freedom of the fibers It is considered that a softening effect is exhibited due to bonding.
- the following method for producing a leather-like sheet is provided.
- a method of producing a leather-like sheet by bonding a fibrous base material and an elastic film layer, wherein at least one of the fibrous base material and the elastic film layer is bonded comprises applying an aqueous solution or aqueous dispersion of a hydrophilic polymer containing a silicone compound on a surface and drying.
- An aqueous solution or dispersion of an elastic polymer containing a silicon compound is applied on the bonding surface on the fibrous base material side, while the bonding surface on the elastic film layer side is heated.
- a method for producing a leather-like sheet-like material comprising applying an aqueous solution or dispersion of a water-soluble polymer containing an expandable microphone-mouth capsule, laminating a fibrous base material and an elastic film layer, and drying. .
- the fibrous base material and the elastic film layer are attached to each other, and the adhesive layer is formed at the contact interface between the fibrous base material layer and the adhesive layer. It is preferable to have a penetration force of 15 to 50 m from the surface.
- the fibrous base material and the elastic film layer are bonded to each other, dried, and then nipped by a hot roll at 100 ° C. to 150 ° C. so that both are adhered.
- the particles expand to form a porous adhesive layer containing air bubbles.
- the leather-like sheet material of the present invention has improved abrasion resistance and, at the same time, excellent peeling strength and flexibility, and is used for shoes such as sports shoes, women's men's shoes, and various poles for competition. It can be preferably used for industrial materials such as skin materials for furniture and vehicles, interior materials, interior materials, etc., binding applications for notebooks and notebooks, and clothing applications.
- HANDY ROLL P 320 J manufactured by NORTON
- wear from the film layer side and the size of the exposed fiber layer reaches 10 mm in diameter. Number of times.
- the average value of the five minimum values at 20 mm intervals when peeling at 10 Omm at a tensile speed of 5 OmmZ was expressed as NZ cm, and was defined as the peeling strength.
- the thickness of the film layer, the thickness of the adhesive layer, and the depth of penetration of the hydrophilic polymer into the substrate of the adhesive layer were measured from an electron micrograph of the cross section of the obtained leather-like sheet.
- Nylon-6 (intrinsic viscosity in m-cresol 1.1) dried at 120 ° C was supplied to an extruder and melted. Separately, polyethylene terephthalate (intrinsic viscosity of 0.64 in o-chlorophenol), dried at 160 ° C, was melted in an extruder separate from that described above.
- the nylon 16 mixture melt stream was introduced into a spin block maintained at 275 ° C. at a conduit polymer temperature of 250 ° C. and the polyethylene terephthalate melt stream at 300 ° C.
- the two polymer melt streams are combined, combined and discharged in an amount of 2 gZ / hole.Air pressure 0.35 MPa (at the spinning speed calculated from the discharge amount and the composite fiber fineness). I towed at high speed at about 4,86 Om / min).
- the drawn composite fiber is subjected to a high voltage application process at _30 kV, collides with an air flow against a dispersion plate, spreads, and is made into a net conveyor as a web consisting of a split-split composite fiber having a 16-layer multi-layer laminated cross section. It was collected with a width of lm. Subsequently, the obtained fleece was passed through a pair of upper and lower calender rolls heated to 100 ° C. to perform heat bonding.
- the obtained fleece is entangled with a needle punch, immersed in water, squeezed lightly with a mandal, and then subjected to a peeling and splitting process with a sheet striking massaging machine.
- the obtained nonwoven fabric was used as a fibrous base material 1.
- the basis weight of this fibrous base material 1 is 350 g / m 2 , thickness was 1.0 mm, and flexibility was 0.25 gZcm.
- the fineness of each fiber after splitting was 0.15 dtex.
- DMF dimethylformamide
- the obtained composite was used as a fibrous base material 2.
- the surface of the obtained fibrous base material 2 was a mixture of fibers and polyurethane.
- the basis weight was 455 gZcm, the thickness was 1. Omm, and the flexibility was 0.82 gZcm.
- a 20% by weight aqueous polyurethane dispersion (Hydran V2114 manufactured by Dainippon Ink and Chemicals, Inc.) and a colorant (Dainippon Ink and Chemicals, Inc.) were added to the nonwoven fabric (fiber aggregate 1) obtained in Reference Example 1.
- aqueous polyurethane dispersion Hydran V2114 manufactured by Dainippon Ink and Chemicals, Inc.
- a colorant Dainippon Ink and Chemicals, Inc.
- the obtained composite was used as a fibrous base material 3.
- Surface of the fibrous base material 3 are those fibers and polyurethane Tan are mixed and a basis weight of 4708 / Ji 1! 1 2, thickness is 1. Omm, was flexibility 0. 57 g / cm.
- a release paper (R53, manufactured by Lintec Co., Ltd.), 100 parts of a 33% aqueous dispersion of one-component ether-based polyurethane (Hydran WLS 201, manufactured by Dainippon Ink and Chemicals, Inc.) 5 parts of Dirac Black HS 9530 manufactured by Co., Ltd. and a thickener (Hydran Assister T1 manufactured by Dainippon Ink and Chemicals, Inc.) were added with stirring to increase the viscosity to 8,000 OmPa-s.
- the prepared solution was coated with a basis weight of 100 g / m 2 and dried at a temperature of 70 ° C. for 2 minutes and at a temperature of 110 ° C. for 2 minutes.
- a two-component ether-based polyurethane adhesive (Dainippon) Hydran A441, 45% aqueous dispersion, manufactured by Ink Chemical Industry Co., Ltd. 100 parts reactive H-silicone aqueous dispersion (Dick Silicone Conc V, manufactured by Dainippon Ink and Chemicals, Inc.) 2 parts, catalyst (Dainippon Ink 2 parts of Dick Silicone Carrier List SC30 manufactured by Chemical Industry Co., Ltd., 5 parts of colorant (Dailac Black HS 9530 manufactured by Dainippon Ink and Chemicals, Inc.) and 5 parts of thickener (Dainippon Ink and Chemicals, Inc.) The mixture was adjusted to a viscosity of 5.00 OmPa ⁇ s by mixing Hydra Assist Yuichi T1) and coated with 150 gZm 2 .
- the fibrous base materials 2 were overlaid and passed through a roll having a gap of 0.6 mm on one surface of a heating cylinder at a temperature of 110 ° C. to be pressed. Then, after leaving it for 2 days in an atmosphere at a temperature of 60 ° C., the release paper was peeled off to obtain a leather-like sheet material 1.
- Table 1 shows the physical properties of the obtained leather-like sheet material 1.
- the nonwoven fabric (fibrous base material 1) obtained in Reference Example 1 was used in place of the fibrous base material 2 composed of a nonwoven fabric and an elastic polymer, and the leather-like sheet was operated in the same manner as in Example 1 except for that. Form 2 was made.
- the physical properties of the obtained leather-like sheet material 2 are also shown in Table 1.
- Example 2 After drying at a temperature of 90 ° C. for 2 minutes, the same fibrous base material 2 as in Example 1 was overlaid and passed through a roll having a gap of 0.6 mm on the surface of a heating cylinder at a temperature of 110 ° C. and pressed. . Then, after leaving it to stand in an atmosphere at a temperature of 60 ° C. for 2 days, the release paper was peeled off to obtain a leather-like sheet material 3.
- the obtained leather-like sheet 3 has a softness of 1.15 gZcm, a soft surface, a wear resistance of 850 times, a bending resistance of 200,000 times or more, and a peel strength of 36 N / cm. Hot 7
- Example 1 The adhesive of Example 1 was replaced with a two-component polycarbonate Z-polyether-based polyurethane adhesive (Hydran TMA437 manufactured by Dainippon Ink and Chemicals, Inc., 45% aqueous dispersion). 2 parts of water dispersion (Dick Silicone Softener 120, manufactured by Dainippon Ink and Chemicals, Inc.), 5 parts of coloring agent (Dailac Black HS 9530, manufactured by Dainippon Ink and Chemicals, Inc.) and 5 parts of thickener Hydran Assister T1) manufactured by Nippon Ink Chemical Industry Co., Ltd. was mixed to adjust the viscosity to 50,000 OmPa ⁇ s. Sheet 4 was prepared. The obtained leather-like sheet material 4 had a flexibility of 1.27 gZcm and a soft surface. Table 1 also shows the physical properties.
- Example 3 The adhesive of Example 3 was replaced with a two-part polyether-based polyurethane adhesive (Hydran A441, 45% aqueous dispersion manufactured by Dainihon Ink Chemical Industry Co., Ltd.) in 100 parts of an aqueous dispersion of dimethyl silicone oil. 2 parts of Dick Silicone Softener 1 (Dai Nippon Ink and Chemicals Co., Ltd.), 5 parts of coloring agent (Dilak Black HS 9530 by Dainippon Ink and Chemicals, Inc.), and 5 parts of thickener (Dai Nippon Ink and Chemicals Hydran Assister T 1) manufactured by Co., Ltd. was mixed, and the viscosity was adjusted to 500 OmPa ⁇ s. ” It was.
- Dick Silicone Softener 1 Dai Nippon Ink and Chemicals Co., Ltd.
- coloring agent Dilak Black HS 9530 by Dainippon Ink and Chemicals, Inc.
- thickener Dai Nippon Ink
- the obtained leather-like sheet 5 has a softness of 1.36 g Z cm, a soft surface, a wear resistance of 690 times, a bending resistance of 200,000 times or more, and a peeling strength of 32. N Zc m.
- Example 3 The adhesive of Example 3 was added to 100 parts of a reactive H-silicone aqueous dispersion with 100 parts of a “two-component polyether-based polyurethane adhesive (Hydran A441, 45% aqueous dispersion manufactured by Dainippon Ink & Chemicals, Inc.) 6 parts of liquid (Dick Silicone Conc V, manufactured by Dainippon Ink and Chemicals Co., Ltd.), 2 parts of catalyst (Dick Silicone, Catalyst SC30 manufactured by Dainippon Ink and Chemicals, Inc.), 2 parts of colorant (Dainippon Ink and Chemicals, Inc.) A mixture prepared by mixing 5 parts of Dark Black HS 9530) and a thickener (Hydran Assist Yuichi T1) manufactured by Dainippon Ink and Chemicals, Inc. to adjust the viscosity to 5,000 OmPas. And a leather-like sheet material 6 was prepared in the same manner as in Example 3, except that the aqueous base material
- the obtained leather-like sheet material 6 had a flexibility of 0.87 g Z cm and a soft surface.
- the detection limit was 2 ppm or less. Table 1 also shows the physical properties.
- the fibrous base material 2 made of the nonwoven fabric obtained in Reference Example 2 and an elastic polymer was used.
- the nonwoven fabric and the fibrous base material 2 made of an elastic polymer are overlapped and passed through a roll with a gap of 0.6 mm on the surface of a heating cylinder at a temperature of 110 ° C, and pressed did. Then, after leaving for 2 days in an atmosphere at a temperature of 60 ° C., the release paper was peeled off to obtain a leather-like sheet 7.
- the obtained leather-like sheet material 7 had a flexibility of 0.55 gZcm and a soft surface. Table 2 shows the physical properties.
- Example 7 Except that the solid adhering amount after drying of the treatment liquid which mainly elastic polymer water-based treating the fibrous base material 2 of the surface used in Example 7 and 34 g / m 2, and Example 7 A leather-like sheet 8 was created in the same manner. In this case, the penetration depth from the surface of the polyurethane, which is an elastic polymer, was 25 m under a microscope.
- the obtained leather-like sheet material 8 had a flexibility of 0.90 gZcm and a soft surface.
- the physical properties are also shown in Table 2.
- a leather-like sheet 9 was prepared in the same manner as in Example 7, except that the aqueous base material of the fiber base sheet 3 was used instead of the fibrous base material 2 used in Example 7.
- the contents of dimethylformamide, methylethylketone, toluene, methyl alcohol, and isopropyl alcohol were examined, they were below the detection limit of 2 ppm.
- the physical properties of the obtained leather-like sheet material 9 are also shown in Table 2.
- the fibrous base material 1 (nonwoven fabric) obtained in Reference Example 1 was used.
- the surface of the fibrous base material 1 was coated with a treatment liquid mainly containing an aqueous elastic polymer in the same manner as in Example 7, and dried.
- the solid content after drying of the treatment liquid mainly composed of an aqueous elastic polymer (polyurethane) on the obtained fibrous base material 1 was 42 gZm 2 , and the polyurethane which was an elastic polymer by microscopy was used.
- the depth of penetration from the surface was 25 m.
- the adhesive of Example 1 was a silicone-free polyether-based polyurethane adhesive (Hydran A441, manufactured by Dainippon Ink and Chemicals, Inc., 45% water dispersion) 100 parts of a coloring agent (Dainippon Ink 5 parts of Dirac Black HS 9530 manufactured by Chemical Industry Co., Ltd. and a thickener (Hachi-idran Sister T 1 manufactured by Dainippon Ink and Chemicals, Inc.) are mixed to adjust the viscosity to 5,000 OmPa ⁇ s.
- a sheet-like material 11 was obtained in the same manner as in Example 1, except that the composition was changed to “Prepared liquid”.
- the obtained sheet 11 had a flexibility of 1.51 gZcm and a hard surface. Also, since it did not contain silicone, the penetration depth of the adhesive layer into the base material was as small as 5 m, and the wear resistance was poor. Table 3 shows the physical properties.
- Example 3 The adhesive of Example 3 was replaced with a polyether-polyurethane-based adhesive containing no silicone compound (Hydran A441, manufactured by Dainippon Ink and Chemicals, Inc., 45% aqueous dispersion).
- a polyether-polyurethane-based adhesive containing no silicone compound (Hydran A441, manufactured by Dainippon Ink and Chemicals, Inc., 45% aqueous dispersion).
- a sheet 12 was obtained in the same manner as in Example 3, except that the “prepared liquid mixture” was changed.
- the obtained sheet 12 had a flexibility of 2.12 gZcm and a hard surface, abrasion resistance of 350 times, bending resistance of 160,000 times or more, and peel strength of 35 NZc.
- the fibrous base material 2 obtained in Reference Example 2 was overlaid and passed through a roll having a gap of 0.6 mm on the surface of a heated cylinder at a temperature of 110. Crimped. Thereafter, the sheet was left in an atmosphere at a temperature of 60 ° C. for 2 days, and the release paper was peeled off to obtain a sheet-like material 13.
- Table 3 also shows the physical properties of the obtained sheet 13.
- a sheet-like material 14 was prepared in the same manner as in Example ⁇ except that the surface of the fibrous base material 2 used in Example 7 was not subjected to the surface treatment with a treatment solution mainly containing a water-based elastic polymer. did.
- the obtained sheet-like material 14 was broken like paper and had a hard texture, and could not obtain the physical properties aimed at by the present invention, and was unsuitable as artificial leather.
- microscopic observation of the cross section revealed that the adhesive used for lamination had deeply penetrated from the surface to the inside of the fiber assembly.
- the physical properties are also shown in Table 3.
- Example 7 On the surface of the fibrous base material 2 used in Example 7, the treatment liquid mainly containing the water-based elastic polymer used in Example ⁇ was applied with a 0.3 mm-thick doctor knife to 80% of the nonwoven fabric thickness. Coated with a gap of 8 mm. Then, drying was performed at a temperature of 90 ° C. for 2 minutes and at a temperature of 110 for 1 minute. Polyurethane adhesion amount to the obtained fibrous base material Ri 18 gZm 2 der, penetration depth from the substrate surface of the elastic polymer by a microscope is 86 m, the elastic polymer in osmotic portion does not continuously Was separated. Next, a sheet 15 was prepared in the same manner as in Example 7.
- the obtained sheet-like material 15 was broken like paper and had a hard texture, and could not obtain the physical properties aimed at by the present invention, and was unsuitable as artificial leather.
- the adhesive penetrates deeply into the fiber aggregate from the surface to the inside However, no adhesive layer was formed.
- the physical properties are also shown in Table 3.
- Solvent system Indicates that an organic solvent was used.
- Aqueous Indicates that it was used as an aqueous solution or aqueous dispersion.
- the adhesive is not continuous and does not form an adhesive layer.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200460027413 DE602004027413D1 (de) | 2003-12-15 | 2004-12-10 | Hren dafür |
US10/582,788 US20070111620A1 (en) | 2003-12-15 | 2004-12-10 | Leather-like sheet material and process for the production thereof |
KR1020067011682A KR101055233B1 (ko) | 2003-12-15 | 2004-12-10 | 피혁형 시트형상물 및 그 제조 방법 |
EP20040807211 EP1696073B1 (en) | 2003-12-15 | 2004-12-10 | Leather-like sheet material and process for producing the same |
Applications Claiming Priority (4)
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JP2003-416304 | 2003-12-15 | ||
JP2003416304A JP4291127B2 (ja) | 2003-12-15 | 2003-12-15 | 皮革様シート状物の製造方法 |
JP2004094669A JP4291192B2 (ja) | 2004-03-29 | 2004-03-29 | 皮革様シート状物の製造方法 |
JP2004-94669 | 2004-03-29 |
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WO2005056913A1 true WO2005056913A1 (ja) | 2005-06-23 |
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US (1) | US20070111620A1 (ja) |
EP (1) | EP1696073B1 (ja) |
KR (1) | KR101055233B1 (ja) |
DE (1) | DE602004027413D1 (ja) |
WO (1) | WO2005056913A1 (ja) |
Cited By (2)
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CN103797184A (zh) * | 2011-09-21 | 2014-05-14 | 巴斯夫欧洲公司 | 具有改进的耐折牢度性能的人造皮革 |
JPWO2014034780A1 (ja) * | 2012-08-31 | 2016-08-08 | 東レ株式会社 | 人工皮革用基体 |
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TW200906612A (en) * | 2007-08-07 | 2009-02-16 | San Fang Chemical Industry Co | PU composite material and method of fabricating the same |
TWI379930B (en) * | 2009-06-24 | 2012-12-21 | San Fang Chemical Industry Co | Artificial leather and method for manufacturing the same |
DE102012106557A1 (de) * | 2012-07-19 | 2014-02-20 | Benecke-Kaliko Ag | Verbundschichtmaterial, Verfahren zu dessen Herstellung und Verwendung |
KR101961447B1 (ko) * | 2013-12-27 | 2019-03-22 | 코오롱인더스트리 주식회사 | 인공피혁의 제조방법 |
EP3647483B1 (en) * | 2017-06-27 | 2022-09-28 | Seiren Co., Ltd. | Synthetic leather |
DE102017129900A1 (de) * | 2017-12-14 | 2019-06-19 | Ewald Dörken Ag | Bauverbundfolie |
CN108503876A (zh) * | 2018-05-10 | 2018-09-07 | 重庆新康意安得达尔新材料有限公司 | 一种抗划伤功能预涂膜及其制备工艺 |
US11239710B2 (en) | 2019-09-30 | 2022-02-01 | Microsoft Technology Licensing, Llc | Charging system including orientation control |
US11675440B2 (en) * | 2019-09-30 | 2023-06-13 | Microsoft Technology Licensing, Llc | Solvent free textile coating |
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- 2004-12-10 EP EP20040807211 patent/EP1696073B1/en not_active Expired - Fee Related
- 2004-12-10 DE DE200460027413 patent/DE602004027413D1/de active Active
- 2004-12-10 US US10/582,788 patent/US20070111620A1/en not_active Abandoned
- 2004-12-10 WO PCT/JP2004/018853 patent/WO2005056913A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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EP1696073A1 (en) | 2006-08-30 |
US20070111620A1 (en) | 2007-05-17 |
EP1696073A4 (en) | 2009-01-07 |
KR20060116008A (ko) | 2006-11-13 |
DE602004027413D1 (de) | 2010-07-08 |
EP1696073B1 (en) | 2010-05-26 |
KR101055233B1 (ko) | 2011-08-08 |
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