Classifications

• • 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
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
  • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
  • D04H1/43838—Ultrafine fibres, e.g. microfibres
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
  • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
  • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
• • 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
  • D06N3/0002—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
  • D06N3/0004—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 ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
• • 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
  • D06N3/0002—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
  • D06N3/0011—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 non-woven fabrics
• • 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
  • D06N3/0002—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
  • D06N3/0015—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 fibres of specified chemical or physical nature, e.g. natural silk
  • D06N3/0025—Rubber threads; Elastomeric fibres; Stretchable, bulked or crimped fibres; Retractable, crimpable fibres; Shrinking or stretching of fibres during manufacture; Obliquely threaded fabrics
  • D06N3/0027—Rubber or elastomeric fibres
• • 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
  • D06N3/0002—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
  • D06N3/0015—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 fibres of specified chemical or physical nature, e.g. natural silk
  • D06N3/0034—Polyamide fibres
• • 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
  • D06N3/0002—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
  • D06N3/0015—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 fibres of specified chemical or physical nature, e.g. natural silk
  • D06N3/0036—Polyester fibres
• • 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
  • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
• • 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
  • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
• • 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
  • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
  • D06N3/0075—Napping, teasing, raising or abrading of the resin coating
• • 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
  • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
  • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
• • 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
  • D06N3/0088—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 directly applying the resin
• • 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
  • D06N3/146—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 characterised by the macromolecular diols used
• • 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
  • D06N2203/00—Macromolecular materials of the coating layers
  • D06N2203/06—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N2203/068—Polyurethanes
• • 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
  • D06N2205/00—Condition, form or state of the materials
  • D06N2205/02—Dispersion
• • 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
  • D06N2205/00—Condition, form or state of the materials
  • D06N2205/20—Cured materials, e.g. vulcanised, cross-linked
• • 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
  • D06N2209/00—Properties of the materials
  • D06N2209/10—Properties of the materials having mechanical properties
  • D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
• • 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
  • D06N2209/00—Properties of the materials
  • D06N2209/10—Properties of the materials having mechanical properties
  • D06N2209/105—Resistant to abrasion, scratch
• • 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
  • D06N2209/00—Properties of the materials
  • D06N2209/16—Properties of the materials having other properties
  • D06N2209/1635—Elasticity
• • 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
  • D06N2209/00—Properties of the materials
  • D06N2209/16—Properties of the materials having other properties
  • D06N2209/1678—Resistive to light or to UV
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/02—Material containing basic nitrogen
  • D06P3/04—Material containing basic nitrogen containing amide groups
  • D06P3/24—Polyamides; Polyurethanes
  • D06P3/241—Polyamides; Polyurethanes using acid dyes
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/34—Material containing ester groups
  • D06P3/52—Polyesters
  • D06P3/54—Polyesters using dispersed dyestuffs

Definitions

• the present invention relates to a sheet-like material and a method for producing the same, particularly a sheet-like material having excellent flexibility and light resistance and a method for producing the same.
• Sheet-like materials mainly composed of fibrous base materials such as non-woven fabrics and polyurethane have excellent characteristics not found in natural leather, and are widely used in various applications such as artificial leather.
• sheet-like materials using a polyester-based fibrous base material have excellent moldability, and are therefore expanding year by year to applications such as clothing, upholstery, and automobile interior materials.
• the fibrous base material is impregnated with an organic solvent solution of polyurethane, and then the obtained fibrous base material is immersed in water or an aqueous solution of an organic solvent which is a non-solvent of polyurethane.
• a combination of steps of wet-solidifying polyurethane is generally adopted.
• the organic solvent which is the solvent of polyurethane a water-miscible organic solvent such as N, N-dimethylformamide is used, but since the organic solvent is generally highly harmful to the environment, it is in the form of a sheet.
• the organic solvent which is the solvent of polyurethane
• a water-miscible organic solvent such as N, N-dimethylformamide
• a method of using a water-dispersed polyurethane in which a polyurethane resin is dispersed in water is being studied instead of the conventional organic solvent-based polyurethane, but generally, a water-dispersed polyurethane is used.
• the solidified sheet-like material has a problem that the texture tends to be hard.
• the coagulation method of polyurethane to which an organic solvent is applied is a so-called wet coagulation method in which polyurethane molecules dissolved in an organic solvent are solvent-substituted with water to coagulate. It is formed. Therefore, even when polyurethane is impregnated in the fibrous base material and solidified, the adhesive area between the fiber and polyurethane is reduced, and it is considered that a soft sheet-like material is formed.
• the mainstream of water-dispersed polyurethane is a so-called moist heat coagulation method in which the hydrated state of the water-dispersed polyurethane dispersion is disrupted by heating and the polyurethane emulsions are coagulated to coagulate.
• the polyurethane film structure to be obtained is a dense non-porous film. Therefore, it is considered that the fibrous base material and the polyurethane are closely adhered to each other, and the entangled portion of the fibers is strongly gripped, so that the texture becomes hard.
• Patent Document 2 As a method using the same coagulation method by hot water treatment, a method of obtaining a sheet-like material having excellent moisture and heat resistance by preventing deterioration of physical properties due to polyurethane swelling during dyeing by performing a cure treatment after dyeing (Patent Document 2). ) And water-dispersed polyurethane containing a hindered amine compound have been applied to obtain a sheet-like material having excellent light resistance and flexibility such as light yellowing resistance and light dyeing fastness (Patent Document 3).
• the heat-sensitive gelation temperature which is the temperature at which the water-dispersed polyurethane gels.
• a method has been proposed in which particles of a polymer emulsion are attracted by the movement of water and intensively adhere to the surface layer of a sheet-like material, that is, a so-called migration phenomenon is suppressed to obtain a flexible texture (a method for obtaining a flexible texture).
• Patent Document 5 a method has been proposed in which a sheet-like material is impregnated with water-dispersible polyurethane to which a polysaccharide is added, and the polymer elastic body is made into a porous structure by heating and drying at a two-step temperature to soften the texture.
• Patent Document 5 the polymer elastic body is completely coagulated in the state where the polysaccharide grips the water in the first step drying, and the polymer is in the state where the polymer elastic body is completely coagulated in the second step drying.
• Patent Document 6 a method has been proposed in which a cross-linking agent is applied and heated to a sheet-like material obtained by coagulating water-dispersible polyurethane to cause a reaction to maintain the texture before the addition of the cross-linking agent.
• the water-dispersible polyurethane can be reacted with the cross-linking agent regardless of the method for coagulating the polyurethane, and a state close to the original coagulated structure of polyurethane can be maintained.
• water-dispersible polyurethane is obtained by reacting a polymer polyol, an organic polyisocyanate, and a chain extender, and exhibits various properties depending on the components of the polymer polyol.
• a polymer polyol There are two types of typical high molecular weight polyols, a polyether-based polyol and a polycarbonate-based polyol.
• a sheet-like product using a polyether-based applicable polyurethane can obtain a softer texture than a polycarbonate-based applicable polyurethane. It is inferior in light resistance. In order to achieve both a flexible texture and light resistance, it is necessary to improve the light resistance by using a polyether-based polyurethane in order to withstand actual use.
• the cross-linking agent is impregnated after the polyurethane is solidified, but the reaction between the polyurethane and the cross-linking agent does not proceed so much, so that the three-dimensional structure of the polyurethane and the cross-linking agent is sufficiently sufficient. It cannot be formed, resulting in insufficient wear resistance and light resistance.
• an object of the present invention is to provide a sheet-like material having both a flexible texture and excellent light resistance and a method for producing the same, in view of the background of the above-mentioned prior art.
• a polymer elastic material containing a polyether diol as a constituent component and a specific amount of a monovalent cation-containing inorganic salt and a cross-linking agent in combination is used.
• a drying temperature in solidification not only can a sheet-like material be manufactured in consideration of the environment, but also a sheet-like material having excellent texture and light resistance can be obtained as compared with a conventional sheet-like material.
• the present invention is intended to solve the above problems, and the sheet-like material of the present invention is a sheet-like material containing a polymer elastic body in a fibrous base material, and the fibrous base material is an average. It is composed of ultrafine fibers having a single fiber diameter of 0.1 ⁇ m or more and 10 ⁇ m or less, the polymer elastic body has a hydrophilic group, contains a polyether diol as a constituent component, and has an N-acylurea bond and an N-acylurea bond inside the polymer elastic body. / Or a sheet-like substance having an isourea bond and satisfying the following conditions 1 and 2.
• Condition 1 JIS L 1096: 2010
• the longitudinal stiffness specified by method A (45 ° cantilever method) described in "Fabric test method for woven fabrics and knitted fabrics" is 40 mm or more and 140 mm or less
• Condition 2 JIS L 0843: 2006 lightfastness measurement of xenon arc amount 110 mJ / m 2 conditions after light resistance test was measured by JIS L 1096: abrasion loss in Martindale abrasion test 20,000 times defined by 2005 is less than 25mg
• the wear loss in the sheet-like material before the light resistance test in the Martindale wear test 20,000 times defined by JIS L 1096: 2010 is 20 mg or less.
• the polymer elastic body is contained in an amount of 10% by mass or more.
• the sheet-like material further satisfies the following condition 3.
• Condition 3 The retention rate of the L value when the raised surface of the sheet-like material is placed on a hot plate heated to 150 ° C. and pressed for 10 seconds with a pressing load of 2.5 kPa is 90% or more and 100% or less.
• the method for producing a sheet-like material of the present invention is a method for producing a sheet-like material, which comprises the following steps (1) to (4) in this order.
• a fibrous base material made of ultrafine fiber-expressing fibers is impregnated with an aqueous dispersion containing a polymer elastic body, a monovalent cation-containing inorganic salt, and a cross-linking agent, and then at 120 ° C. or higher and 180 ° C. or lower.
• Polymer elastic body impregnation step in which the content of the inorganic salt is 10 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the polymer elastic body
• the ultrafine fiber-expressing type fiber is alkali-treated to be an ultrafine fiber.
• a dyeing step of dyeing an unbrushed sheet-like material or a sheet-like material after the drying step is included.
• the monovalent cation-containing inorganic salt is sodium chloride and / or sodium sulfate.
• the cross-linking agent is a carbodiimide-based cross-linking agent.
• a sheet-like material having both a flexible texture and excellent light resistance can be obtained.
• the sheet-like material of the present invention is a sheet-like material containing a polymer elastic body in a fibrous base material, and the fibrous base material is composed of ultrafine fibers having an average single fiber diameter of 0.1 ⁇ m or more and 10 ⁇ m or less, and is a polymer.
• the elastic body has a hydrophilic group, contains a polyether diol as a constituent component, has an N-acylurea bond and / or an isourea bond inside the polymer elastic body, and satisfies the following conditions 1 and 2. It is a sheet-like material.
• Condition 1 The rigidity in the vertical direction defined by the method A (45 ° cantilever method) described in JIS L 1096: 2010 “Fabric test method for woven fabrics and knitted fabrics” is 40 mm or more and 140 mm or less.
• Condition 2 JIS L 0843: 2006
• the xenon arc amount of the light fastness measurement method is 110 MJ / m.
• the wear loss in the Martindale wear test 20,000 times specified in JIS L 1096: 2005 after the light resistance test measured under 2 conditions is It is 25 mg or less.
• polyester resins examples include polyester resins and polyamide resins from the viewpoints of excellent durability, particularly mechanical strength, heat resistance and light resistance.
• Specific examples of the polyester resin include polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate and the like.
• the polyester resin can be obtained from, for example, a dicarboxylic acid and / or an ester-forming derivative thereof and a diol.
• dicarboxylic acid and / or its ester-forming derivative used in the polyester resin examples include terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid, diphenyl-4,4'-dicarboxylic acid and its ester-forming derivative.
• the ester-forming derivative referred to in the present invention is a lower alkyl ester of a dicarboxylic acid, an acid anhydride, an acyl chloride or the like. Specifically, methyl ester, ethyl ester, hydroxy ethyl ester and the like 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 a dimethyl ester thereof.
• diol used in the polyester resin examples include ethylene glycol, 1,3-propanediol, 1,4-butanediol, cyclohexanedimethanol and the like. Of these, ethylene glycol is preferably used.
• polyamide 6 polyamide 66, polyamide 56, polyamide 610, polyamide 11, polyamide 12, copolymerized polyamide and the like can be used.
• the resin used for the ultrafine fibers contains inorganic particles such as titanium oxide particles, a lubricant, a pigment, a heat stabilizer, an ultraviolet absorber, a conductive agent, a heat storage agent, an antibacterial agent, and the like, depending on various purposes. Can be done.
• the resin used for the ultrafine fiber contains a component derived from a biomass resource.
• the component derived from the biomass resource may be a component derived from the biomass resource as a component dicarboxylic acid or an ester-forming derivative thereof, or a diol.
• the component derived from the biomass resource it is preferable to use the component derived from the biomass resource for both the dicarboxylic acid or its ester-forming derivative and the diol.
• the components derived from the biomass resource include polyamide 56, polyamide 610, and polyamide 56, polyamide 610, from the viewpoint of economically advantageous availability of a raw material derived from the biomass resource and the physical characteristics of the fiber.
• Polyamide 11 is preferably used.
• the cross-sectional shape of the ultrafine fiber either a round cross section or a deformed cross section can be adopted.
• Specific examples of the irregular cross section include polygons such as ellipses, flats, and triangles, sectors, and crosses.
• the average single fiber diameter of the ultrafine fibers is 0.1 ⁇ m or more and 10 ⁇ m or less.
• the average single fiber diameter of the ultrafine fibers is 10 ⁇ m or less, preferably 7 ⁇ m or less, more preferably 5 ⁇ m or less, the sheet-like material can be made more flexible. In addition, the quality of standing hair can be improved.
• the average single fiber diameter of the ultrafine fibers is 0.1 ⁇ m or more, preferably 0.3 ⁇ m or more, more preferably 0.7 ⁇ m or more, a sheet-like material having excellent color development after dyeing is performed. Can be. Further, when the raising treatment by buffing is performed, it is possible to improve the ease of dispersing and the ease of handling of the ultrafine fibers existing in a bundle.
• the average single fiber diameter referred to in the present invention is measured by the following method. That is, (1) The cross section of the sheet-like material cut in the thickness direction is observed with a scanning electron microscope (SEM). (2) The fiber diameters of any 50 ultrafine fibers in the observation surface are measured in three directions in each ultrafine fiber cross section. However, when ultrafine fibers having a modified cross section are used, the cross-sectional area of the single fiber is first measured, and the diameter of the circle having the cross-sectional area is calculated by the following formula. The diameter obtained from this is taken as the single fiber diameter of the single fiber.
• SEM scanning electron microscope
• -Single fiber diameter ( ⁇ m) (4 x (single fiber cross-sectional area ( ⁇ m 2 )) / ⁇ ) 1/2 (3) Calculate the arithmetic mean value ( ⁇ m) of the total of 150 points obtained, and round off to the second decimal place.
• the fibrous base material used in the present invention comprises the ultrafine fibers. It is permissible for the fibrous base material to be a mixture of ultrafine fibers made of different raw materials.
• a non-woven fabric formed by entwining each of the ultrafine fibers or a non-woven fabric formed by entwining fiber bundles of ultrafine fibers can be used.
• a non-woven fabric formed by entwining fiber bundles of ultrafine fibers is preferably used from the viewpoint of strength and texture of a sheet-like material.
• a non-woven fabric in which the ultrafine fibers constituting the fiber bundle of the ultrafine fibers are appropriately separated from each other and has voids is preferably used.
• the non-woven fabric in which the fiber bundles of the ultrafine fibers are entangled can be obtained, for example, by entwining the ultrafine fiber-expressing fibers in advance and then expressing the ultrafine fibers.
• the non-woven fabric in which the ultrafine fibers constituting the fiber bundle of the ultrafine fibers are appropriately separated from each other and have voids is, for example, a sea-island type composite fiber capable of forming voids between the island components by removing the sea component. It can be obtained by using it.
• the non-woven fabric may be either a short-fiber non-woven fabric or a long-fiber non-woven fabric, but the short-fiber non-woven fabric is more preferably used from the viewpoint of the texture and quality of the sheet-like material.
• the fiber length of the short fiber is preferably in the range of 25 mm or more and 90 mm or less.
• the fiber length is preferably in the range of 25 mm or more and 90 mm or less.
• the fiber length is set to 25 mm or more, more preferably 35 mm or more, still more preferably 40 mm or more, it becomes easy to obtain a sheet-like material having excellent wear resistance due to entanglement.
• the fiber length is set to 90 mm or less, more preferably 80 mm or less, still more preferably 70 mm or less, a sheet-like material having more excellent texture and quality can be obtained.
• the non-woven fabric or knitted fabric when a non-woven fabric is used as the fibrous base material, the non-woven fabric or knitted fabric can be inserted, laminated, or lined inside the non-woven fabric for the purpose of improving the strength.
• the average single fiber diameter of the fibers constituting such a woven fabric or knitted fabric is more preferably 0.3 ⁇ m or more and 10 ⁇ m or less because damage at the time of needle punching can be suppressed and strength can be maintained.
• the fibers constituting the woven fabric or knitted fabric include polyesters such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate and polylactic acid, synthetic fibers such as polyamides such as 6-nylon and 66-nylon, and cellulose-based polymers. Recycled fibers, natural fibers such as cotton and linen can be used.
• examples of the polymer elastic body include an aqueous dispersion type silicone resin, an aqueous dispersion type acrylic resin, an aqueous dispersion type urethane resin, and a copolymer thereof.
• a water-dispersible polyurethane resin is preferably used from the viewpoint of texture.
• the water-dispersible polyurethane resin a resin obtained by reacting a polymer polyol having a number average molecular weight of preferably 500 or more and 5,000 or less, an organic polyisocyanate, and a chain extender is preferably used. Further, in order to improve the stability of the water-dispersed polyurethane dispersion, it is preferable to use a hydrophilic group-containing active hydrogen component in combination. By setting the number average molecular weight of the polymer polyol to 500 or more, more preferably 1,500 or more, it is possible to easily prevent the texture from becoming hard.
• the number average molecular weight is 5,000 or less, more preferably 4,000 or less, it is possible to easily maintain the strength of polyurethane as a binder.
• a water-dispersible polyurethane resin is used as the polymer elastic body will be described below.
• the polymer elastic body contains a polyether diol as a constituent component.
• the content of the polyether diol in the polymer polyol is preferably 50% by mass or more, more preferably 70% by mass or more, and further preferably 90% by mass or more of the total polymer polyol.
• Specific examples of the polyether diol include polyethylene glycol, polypropylene glycol, polytetramethylene glycol and the like, and copolymerized polyether diols in combination thereof.
• "included as a constituent component” means that it is contained as a monomer component and an oligomer component constituting a polymer elastic body. Since the degree of freedom of the ether bond of the polyether diol is high, the glass transition temperature is low and the cohesive force is weak, so that polyurethane having excellent flexibility can be easily obtained.
• organic diisocyanates used in the present invention include aromatic diisocyanates having 6 or more and 20 or less carbon atoms (excluding carbons in NCO groups, the same applies hereinafter) and 2 or more and 18 or less carbon atoms. Aliphatic diisocyanates, alicyclic diisocyanates having 4 to 15 carbon atoms, aromatic aliphatic diisocyanates having 8 to 15 carbon atoms, modified products of these diisocyanates (carbodiimide modified products, urethane modified products, uretdione modified products, etc.). ) And a mixture of two or more of these.
• aromatic diisocyanate having 6 or more and 20 or less carbon atoms include 1,3- and / or 1,4-phenylenediocyanate, 2,4- and / 2,6-tolylene diisocyanate, and 2,4'. -And / or 4,4'-diphenylmethane diisocyanate (hereinafter abbreviated as MDI), 4,4'-diisocyanatobiphenyl, 3,3'-dimethyl-4,4'-diisocyanatobiphenyl, 3,3'- Examples thereof include dimethyl-4,4'-diisocyanatodiphenylmethane, and 1,5-naphthylene diisocyanate.
• MDI 4,4'-diisocyanatobiphenyl
• 3,3'-dimethyl-4,4'-diisocyanatobiphenyl 3,3'- Examples thereof include dimethyl-4,4'-diisocyanatodiphenylmethane, and 1,5-na
• aliphatic diisocyanate having 2 or more and 18 or less carbon atoms include ethylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, lysine diisocyanate, and 2,6.
• -Diisocyanatomethyl caproate bis (2-isocyanatoethyl) carbonate, 2-isocyanatoethyl-2,6-diisocyanatohexaate and the like.
• alicyclic diisocyanate having 4 or more and 15 or less carbon atoms include isophorone diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, cyclohexylene diisocyanate, methylcyclohexylene diisocyanate, and bis (2-isocyanatoethyl)-. Included are 4-cyclohexylene-1,2-dicarboxylate, and 2,5- and / or 2,6-norbornane diisocyanate.
• aromatic aliphatic diisocyanate having 8 or more and 15 or less carbon atoms include m- and / or p-xylylene diisocyanate, ⁇ , ⁇ , ⁇ ', and ⁇ '-tetramethylxylylene diisocyanate. ..
• the preferred organic diisocyanate is an alicyclic diisocyanate.
• a particularly preferable organic diisocyanate is dicyclohexylmethane-4,4'-diisocyanate.
• Chain extender examples include water, "ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butanediol, 1,6-hexanediol, and diethylene glycol.” And neopentyl glycol, etc., low molecular weight diols, 1,4-bis (hydroxymethyl) cyclohexane, etc., alicyclic diols, 1,4-bis (hydroxyethyl) benzene, etc., aromatic diols, ethylenediamine, etc.
• Aliphatic diamines such as “isofolone diamines”, alicyclic diamines such as “isophorone diamines”, aromatic diamines “4,4-diaminodiphenylmethane", aromatic aliphatic diamines “xylene diamines”, alkanols “ethanolamine etc.”
• examples include amines, hydrazines, dihydrazides such as “dihydrazide adipate", and mixtures of two or more of these.
• preferred chain extenders are water, low molecular weight diols, aromatic diamines, more preferably water, ethylene glycol, 1,4-butanediol, 4,4'-diaminodiphenylmethane and two or more of these. Examples include mixtures.
• additives for water-dispersed polyurethane resin it is important to add a monovalent cation-containing inorganic salt to a solution containing water-dispersed polyurethane for the reason described later.
• colorants such as titanium oxide, UV absorbers (benzophenone-based, benzotriazole-based, etc.) and antioxidants [4,5-butylidene-bis (3-methyl-6-1-butylphenol), etc.
• organic phosphite such as triphenyl phosphite, trichloroethyl phosphite, etc.] and other stabilizers, inorganic fillers (calcium carbonate, etc.) and the like can be contained.
• examples of the component that causes the polyurethane to contain a hydrophilic group include a hydrophilic group-containing active hydrogen component.
• examples of the hydrophilic group-containing active hydrogen component include compounds containing a nonionic group and / or an anionic group and / or a cationic group and active hydrogen.
• the compound having a nonionic group and active hydrogen contains two or more active hydrogen components or two or more isocyanate groups, and has a polyoxyethylene glycol group having a molecular weight of 250 to 9,000 in the side chain.
• examples thereof include compounds and triols such as trimethylolpropane and trimethylolbutane.
• Examples of the compound having an anionic group and active hydrogen include carboxyl group-containing compounds such as 2,2-dimethylol propionic acid, 2,2-dimethylolbutanoic acid, and 2,2-dimethylol valerate and their derivatives, and 1 , 3-Phenylenediamine-4,6-disulfonic acid, 3- (2,3-dihydroxypropoxy) -1-propanesulfonic acid and other compounds containing sulfonic acid groups and their derivatives, and neutralizing these compounds. Examples include salts neutralized with an agent.
• Examples of the compound containing a cationic group and active hydrogen include a tertiary amino group-containing compound such as 3-dimethylaminopropanol, N-methyldiethanolamine, and N-propyldiethanolamine, and derivatives thereof.
• the hydrophilic group-containing active hydrogen component can also be used in the state of a salt neutralized with a neutralizing agent.
• the hydrophilic group-containing active hydrogen component used in the polyurethane molecule is 2,2-dimethylolpropionic acid, 2,2-dimethylolbutanoic acid and from the viewpoint of mechanical strength and dispersion stability of the water-dispersed polyurethane resin. It is preferable to use these neutralizing salts.
• the hydrophilic group in the polymer elastic body is a group having active hydrogen.
• Specific examples of the hydrophilic group include a hydroxyl group, a carboxyl group, a sulfonic acid group, an amino group and the like.
• the polymer elastic body has an N-acylurea bond and / or an isourea bond.
• having an N-acylurea bond and / or an isourea bond inside the polymer elastic body means that the polymer elastic body has an N-acylurea bond and / or an isourea bond.
• the N-acylurea bond and / or isourea bond is, for example, a carbodiimide-based crosslink with a hydroxyl group and / or a carboxyl group existing as the above-mentioned hydrophilic group-containing active hydrogen component. It can be formed by reacting with an agent.
• the presence of the above N-acylurea group and isourea group in the polymer elastic body means that the cross section of the sheet-like material is mapped by, for example, time-of-flight secondary ion mass spectrometry (TOF-SIMS analysis).
• TOF-SIMS analysis time-of-flight secondary ion mass spectrometry
• Processing for example, "TOF.SIMS 5" manufactured by ION-TOF as an analytical instrument
• infrared spectroscopic analysis for example, "FT / IR 4000 series” manufactured by Nippon Spectroscopy Co., Ltd. as an analytical instrument
• the number average molecular weight of the polymer elastic body used in the present invention is preferably 20,000 or more from the viewpoint of resin strength, and preferably 500,000 or less from the viewpoint of viscosity stability and workability. ..
• the number average molecular weight is more preferably 30,000 or more and 150,000 or less.
• the number average molecular weight of the polymer elastic body can be determined by gel permeation chromatography, and is measured, for example, under the following conditions.
• the polymer elastic material used in the present invention appropriately grips fibers in a sheet-like material, and preferably is a fibrous base material from the viewpoint of having fluff on at least one side of the sheet-like material. It is a preferred embodiment that it exists inside.
• the sheet-like material of the present invention has a longitudinal rigidity of 40 mm or more and 140 mm or less specified by the method A (45 ° cantilever method) described in JIS L 1096: 2010 “Fabric test method for woven fabrics and knitted fabrics”. It is important to be. By setting the rigidity and softness in the above range, it is possible to have appropriate flexibility and resilience.
• the rigidity is preferably 50 mm or more, more preferably 55 mm or more from the viewpoint of obtaining a repulsive sheet-like material, and preferably 120 mm or less from the viewpoint of obtaining a flexible sheet-like material. , More preferably 110 mm or less.
• the vertical direction in the sheet-like material of the present invention means the direction in which the sheet-like material is brushed.
• a method of searching for the direction in which the brushing treatment is performed it can be appropriately adopted depending on the constituent components of the sheet-like material such as visual confirmation when tracing with a finger and SEM photography. That is, when traced with a finger, the direction in which the fluffy fibers can be laid down or erected is the vertical direction. Further, by SEM-imaging the surface of the sheet-like object traced with a finger, the direction in which the lying nap fibers are most oriented becomes the vertical direction.
• the horizontal direction in the sheet-like object of the present invention is the direction perpendicular to the vertical direction as the horizontal direction.
• the sheet-like material of the present invention is a Martindale wear test specified by JIS L 1096: 2005 after the light resistance test in which the xenon arc amount of the JIS L 0843: 2006 light fastness measurement method is measured under the condition of 110 MJ / m 2. It is important that the wear loss at 20,000 times is 25 mg or less. By setting the wear weight loss after the light resistance test within the above range, deterioration of the polymer elastic body can be suppressed even when used for a long period of time in a harsh environment exposed to sunlight, and the appearance of the sheet-like material can be maintained. Can be done.
• the wear weight loss is preferably 23 mg or less, and more preferably 20 mg or less, from the viewpoint of suppressing deterioration of the appearance of the sheet-like material.
• the sheet-like material of the present invention preferably has a wear weight loss of 20 mg or less in the Martindale wear test 20,000 times specified in JIS L 1096: 2010 in the sheet-like material before the light resistance test.
• the wear weight loss is preferably 18 mg or less, more preferably 15 mg or less, from the viewpoint of further suppressing fluffing in actual use.
• the sheet-like material of the present invention preferably contains a polymer elastic body in an amount of 10% by mass or more. From the viewpoint of suppressing breakage due to tension in the manufacturing process and fluffing in actual use, the content is more preferably 12% by mass or more, and further preferably 15% by mass or more.
• the upper limit of the content is not particularly limited, but is usually 50% by mass or less, preferably 40% by mass or less, and more preferably 35% by mass or less.
• the sheet-like material of the present invention further satisfies the following condition 3.
• Condition 3 The L value retention rate when the raised surface of the sheet-like material is placed on a hot plate heated to 150 ° C. and pressed for 10 seconds with a pressing load of 2.5 kPa (hereinafter, simply abbreviated as L value retention rate). Is 90% or more and 100% or less.
• the sheet-like material has high heat resistance.
• the "brushed surface of the sheet-like material” refers to the surface of the sheet-like material that has been brushed.
• the L value is an L value defined by the Commission International on Illumination (CIE), but the L value retention rate in the present invention is a change in brightness under heating / pressing conditions. Is a small ratio, that is, it is an index indicating how much a sheet-like material having a dark color before heating / pressing does not become bright after heating / pressing.
• the L value retention rate refers to a value measured and calculated by the procedure as follows.
• the sheet-like material is cut, and the L value of the cut test piece is measured using a color difference meter (for example, "CR-410" manufactured by Konica Minolta Co., Ltd.).
• the test piece is placed on a hot plate heated to 150 ° C. (for example, "CHP-250DN” manufactured by AS ONE Corporation) with the raised surface of the test piece facing down.
• An indenter adjusted so that the pressing load is 2.5 kPa is placed on the test piece and held for 10 seconds.
• the L value retention rate is calculated from the following formula.
• L value retention rate (%) (L value measured in (1)) / (L value measured in (4)) ⁇ 100
• a polymer elastic body impregnation step, an ultrafine fiber expression step, and a drying step described later are performed. It is possible to manufacture a sheet-like product through the process. By impregnating the polymer elastic body and then passing through the process of expressing the ultrafine fibers, it can be formed in the gap between the ultrafine fibers and the polymer elastic body, and a flexible texture can be easily obtained.
• heat treatment is performed at a temperature of 120 ° C. or higher and 180 ° C. or lower to agglomerate the particles of the polymer elastic body, and it is easy to improve light resistance, abrasion resistance, and heat resistance. Can be done. Further, by setting the heat-sensitive coagulation temperature of the aqueous dispersion in the range described later, uneven distribution (migration) of polyurethane on the surface of the sheet-like material due to water evaporation can be suppressed, and the L value retention rate can be increased.
• the method for producing a sheet-like product of the present invention includes the following steps (1) to (4) in this order.
• a fibrous base material made of ultrafine fiber-expressing fibers is impregnated with an aqueous dispersion containing a polymer elastic body, a monovalent cation-containing inorganic salt, and a cross-linking agent, and then at 120 ° C. or higher and 180 ° C. or lower.
• Polymer elastic body impregnation step in which the content of the inorganic salt is 10 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the polymer elastic body (2)
• the ultrafine fiber-expressing fiber is alkali-treated and the ultrafine fiber is treated.
• the "unraised sheet-like material” refers to a sheet-like material before the raising treatment obtained by a method including at least the above steps (1) to (3) in this order.
• ultrafine fiber-expressing fibers As a means for obtaining ultrafine fibers, it is a preferable embodiment to use ultrafine fiber-expressing fibers. By entwining the ultrafine fiber-expressing fibers in advance to form a non-woven fabric and then ultrafine the fibers, a non-woven fabric in which the ultrafine fiber bundles are entangled can be obtained.
• the ultrafine fiber-expressing fiber a thermoplastic resin having two components (two or three components when the island fiber is a core-sheath composite fiber) having different solvent solubility is used as a sea component and an island component, and the above sea component is used as a solvent.
• a sea-island type composite fiber in which the island component is an ultrafine fiber by dissolving and removing the sea component an appropriate void is provided between the island components, that is, between the ultrafine fibers inside the fiber bundle when the sea component is removed. Therefore, it is preferable from the viewpoint of the texture and surface quality of the sheet-like material.
• sea-island type composite fiber a polymer mutual arrangement in which two components of the sea component and the island component (three components when the island fiber is a core-sheath composite fiber) are reciprocally arranged and spun using a sea-island type composite base is used.
• the method used is preferable from the viewpoint of obtaining ultrafine fibers having a uniform single fiber diameter.
• polyethylene, polypropylene, polystyrene, copolymerized polyester obtained by copolymerizing sodium sulfoisophthalic acid, polyethylene glycol, etc., polylactic acid, etc. can be used. From this point of view, polystyrene and copolymerized polyester are preferably used.
• the sea component is dissolved and removed after the polymer elastic body is applied. As will be described later.
• the mass ratio of the sea component is 10% by mass or more, the island component is likely to be sufficiently refined. Further, when the mass ratio of the sea component is 80 mass or less, the ratio of the eluted component is small, so that the productivity is improved.
• the fiber entanglement preferably takes the form of a non-woven fabric, and as described above, either a short-fiber non-woven fabric or a long-fiber non-woven fabric can be used, but the short-fiber non-woven fabric faces the thickness direction of the fibrous base material. This is preferable because the number of fibers is larger than that of the long-fiber non-woven fabric, and a high degree of denseness can be obtained on the surface of the fibrous base material when raised.
• the obtained ultrafine fiber phenotype fiber is preferably crimped and cut to a predetermined length to obtain raw cotton.
• a known method can be used for the crimping process and the cutting process.
• the obtained raw cotton is made into a fiber web by a cloth wrapper or the like, and entangled to obtain a short fiber non-woven fabric.
• a needle punching process, a water jet punching process, or the like can be used as a method of entwining the fiber webs to obtain a short fiber non-woven fabric.
• the obtained short fiber non-woven fabric and woven fabric are laminated and entangled and integrated.
• the woven fabric is laminated on one or both sides of the short-fiber non-woven fabric, or the woven fabric is sandwiched between multiple short-fiber non-woven fabric webs, and then needle punching or water jet is performed.
• the short fiber non-woven fabric and the fibers of the woven fabric can be entangled with each other by punching or the like.
• Apparent density of the short-fiber nonwoven fabric composed of the composite fiber after needle punching or water jet punching is preferably 0.15 g / cm 3 or more 0.45 g / cm 3 or less.
• the fibrous substrate can obtain sufficient morphological stability and dimensional stability.
• the apparent density is preferably 0.45 g / cm 3 or less, it is possible to maintain a sufficient space for imparting the polymer elastic body.
• the non-woven fabric thus obtained is preferably shrunk by dry heat, moist heat, or both to further increase the density.
• the non-woven fabric can be compressed in the thickness direction by calendar processing or the like.
• an aqueous dispersion containing a polymer elastic body, a monovalent cation-containing inorganic salt, and a cross-linking agent is applied to a fibrous base material made of ultrafine fiber-expressing fibers.
• the polymer elastic body impregnation step is included in which the content of the monovalent cation-containing inorganic salt in the aqueous dispersion is 10 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the polymer elastic body.
• a polymer elastic body having a hydrophilic group and containing a polyether diol as a constituent component is imparted to a fibrous base material.
• the polymer elastic body can be applied to either the non-woven fabric made of composite fibers or the non-woven fabric made into ultrafine fibers.
• the polymer elastic body contains a polyether diol as a constituent component.
• the reason is as described in the above-mentioned item (1-1) Polymer polyol.
• a dry heat solidification method in which heat treatment is performed at a temperature of 120 ° C. or higher and 180 ° C. or lower for solidification after the polymer elastic body is applied.
• a hot water coagulation method in which a polymer elastic body is coagulated in hot water, the polymer elastic body diffuses in hot water and partly falls off, so that there is a concern about workability.
• the acid coagulation method in which the polymer elastic body is coagulated with an acid, it is necessary to neutralize the acidic solution remaining in the sheet, which is not preferable in terms of processing operability.
• the dry heat coagulation method applied in the present invention is a very simple method of heat-treating a sheet impregnated with a polymer elastic body with a hot air dryer or the like, and there is no concern that the polymer elastic body may fall off. , It is a method with excellent workability.
• the heating temperature in dry heat coagulation is 120 ° C. or higher and 180 ° C. or lower. It is more preferable that the heating temperature is 140 ° C. or higher. This is because the polymer elastic body can be rapidly solidified and the uneven distribution of the polymer elastic body on the lower surface of the sheet due to its own weight can be suppressed.
• the above-mentioned temperature is used to sufficiently promote the cross-linking reaction, form a three-dimensional network structure, and improve physical properties, light resistance, and heat resistance. Can be done. More preferably, the heating temperature is 175 ° C. or lower. This is because the thermal deterioration of the polymer elastic body can be suppressed.
• the concentration of the polymer elastic body in the aqueous dispersion (content of the polymer elastic in 100% by mass of the aqueous dispersion) is 10% by mass or more and 50% by mass or less from the viewpoint of storage stability of the aqueous dispersion. It is preferable, more preferably 15% by mass or more and 40% by mass or less.
• the aqueous dispersion used in the present invention may contain a water-soluble organic solvent in an amount of 40% by mass or less in 100% by mass of the aqueous dispersion in order to improve storage stability and film-forming property.
• the content of the organic solvent is preferably 1% by mass or less.
• a monovalent cation-containing inorganic salt is contained in the aqueous dispersion.
• a monovalent cation-containing inorganic salt By containing a monovalent cation-containing inorganic salt, it is possible to impart heat-sensitive coagulation to the aqueous dispersion.
• the heat-sensitive coagulation property refers to the property that when the aqueous dispersion is heated, the fluidity of the aqueous dispersion decreases and solidifies when a certain temperature (heat-sensitive coagulation temperature) is reached.
• an aqueous dispersion is applied to a fibrous substrate, then heat-treated at a temperature of 120 ° C. or higher and 180 ° C. or lower to dry heat coagulate, thereby increasing the content of the fibrous substrate.
• a temperature of 120 ° C. or higher and 180 ° C. or lower to dry heat coagulate, thereby increasing the content of the fibrous substrate.
• the polymer elastic body does not have thermal coagulation properties, migration occurs in which the polymer elastic body migrates to the sheet surface as the water evaporates. Further, since the solidification proceeds in a state where the polymer elastic body is unevenly distributed around the fiber as the water evaporates, the polymer elastic body covers the circumference of the fiber, and the structure is such that the movement is strongly restrained. As a result, the texture of the sheet-like material is remarkably hardened.
• the heat-sensitive coagulation temperature of the aqueous dispersion is preferably 55 ° C. or higher and 80 ° C. or lower.
• the heat-sensitive temperature is more preferably 60 ° C. or higher because the stability of the aqueous dispersion during storage is improved and the adhesion of the polymer elastic body to the machine during operation can be suppressed.
• the heat-sensitive solidification temperature is 70 ° C. or lower.
• a monovalent cation-containing inorganic salt as the inorganic salt used as the heat-sensitive coagulant.
• the monovalent cation-containing inorganic salt is preferably sodium chloride and / or sodium sulfate.
• inorganic salts having divalent cations such as magnesium sulfate and calcium chloride have been preferably used as the heat-sensitive coagulant, but these inorganic salts can improve the stability of the aqueous dispersion even when added in a small amount.
• the monovalent cation-containing inorganic salt having a small ionic valence has a small effect on the stability of the aqueous dispersion, and heat-sensing while ensuring the stability of the aqueous dispersion by adjusting the addition amount.
• the solidification temperature can be strictly controlled.
• the content of the monovalent cation-containing inorganic salt in the aqueous dispersion is 10 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the polymer elastic body.
• the inorganic salt acts as an inhibitor in the fusion of the polymer elastic particles, and the curing of the polymer elastic body due to the formation of a continuous film can be suppressed.
• the content is 50 parts by mass or less, an appropriate continuous coating structure of the polymer elastic body can be left, and deterioration of physical properties can be suppressed.
• the stability of the aqueous dispersion can be maintained.
• the aqueous dispersion contains a cross-linking agent.
• a cross-linking agent By introducing a three-dimensional network structure into the polymer elastic body with a cross-linking agent, physical properties such as wear resistance can be improved.
• the coagulation of the polymer elastic body and the reaction between the polymer elastic body and the cross-linking agent proceed simultaneously, thereby forming a dense three-dimensional network structure and forming a fiber.
• the cross-linking agent is a carbodiimide-based cross-linking agent.
• the method for producing a sheet-like product of the present invention includes (2) an ultrafine fiber expression step of treating ultrafine fiber-expressing fibers with an alkali to express the ultrafine fibers.
• the fiber ultrafine treatment can be performed, for example, by immersing the sea-island type composite fiber in a solvent and squeezing the liquid.
• a solvent for dissolving the sea component an alkaline aqueous solution such as sodium hydroxide or hot water can be used.
• devices such as a continuous dyeing machine, a vibro washer type dewatering machine, a liquid flow dyeing machine, a Wins dyeing machine and a Jigger dyeing machine can be used.
• the ultrafine fiber expression step it is preferable to perform a sufficient washing step after the alkali treatment.
• a sufficient washing step By going through the cleaning process, it is possible to process the sheet without leaving alkali or monovalent cation-containing inorganic salt adhering to the sheet on the sheet, and it can be processed without affecting the production equipment. It is preferable to use water as the cleaning liquid in consideration of the environment and safety.
• the method for producing a sheet-like product of the present invention includes (3) a drying step of performing heat treatment at a temperature of 120 ° C. or higher and 180 ° C. or lower.
• a drying step of performing heat treatment at a temperature of 120 ° C. or higher and 180 ° C. or lower.
• the bonds of the polymer elastic body are partially decomposed by the solvent that dissolves the components other than the ultrafine fibers in the ultrafine fiber expression type fiber. Therefore, the polymer elastic body is cured by drying. It is possible to further improve physical properties such as light resistance, abrasion resistance, and heat resistance by aggregating the particles of the above.
• the heating temperature in the curing treatment by drying is 120 ° C. or higher and 180 ° C. or lower.
• the temperature is preferably 140 ° C. or higher, more preferably 150 ° C. or higher, in order to enhance the effect of the cure treatment and to improve the physical properties such as light resistance, abrasion resistance, and heat resistance.
• the temperature is preferably 175 ° C. or lower, more preferably 170 ° C. or lower.
• the method for producing a sheet-like material of the present invention preferably includes a dyeing step of dyeing the unbrushed sheet-like material or the sheet-like material after the drying step.
• this dyeing treatment various methods usually used in the art can be adopted, for example, a liquid flow dyeing treatment using a jigger dyeing machine or a liquid flow dyeing machine, a thermosol dyeing treatment using a continuous dyeing machine, and the like.
• Dyeing treatment, roller printing, screen printing, inkjet printing, sublimation printing, vacuum sublimation printing, or the like can be used.
• liquid flow dyeing machine because it is possible to soften the unbrushed sheet-like material or the sheet-like material by giving a kneading effect at the same time as dyeing the unbrushed sheet-like material or the sheet-like material. Further, if necessary, various resin finishing processes can be applied after dyeing.
• the dyeing temperature is preferably 80 ° C. or higher and 150 ° C. or lower, although it depends on the type of fiber. By setting the dyeing temperature to 80 ° C. or higher, more preferably 110 ° C. or higher, dyeing to the fibers can be efficiently performed. On the other hand, by setting the dyeing temperature to 150 ° C. or lower, more preferably 130 ° C. or lower, deterioration of the polymer elastic body can be prevented.
• the dye used in the present invention may be selected according to the type of fiber constituting the fibrous base material and is not particularly limited. For example, if it is a polyester fiber, a disperse dye can be used, and a polyamide fiber can be used. If so, acid dyes and gold-containing dyes can be used, and combinations thereof can be used. When dyed with a disperse dye, reduction cleaning may be performed after dyeing.
• a dyeing aid at the time of dyeing.
• a dyeing aid By using a dyeing aid, the uniformity and reproducibility of dyeing can be improved.
• a finishing agent treatment using, for example, a softener such as silicone, an antistatic agent, a water repellent agent, a flame retardant, a light resistant agent, an antibacterial agent, or the like can be applied in the same bath as the dyeing or after the dyeing.
• the method for producing a sheet-like material of the present invention includes (4) a brushing step of raising at least one surface of the unbrushed sheet-like material to form naps on the surface regardless of before and after the dyeing step.
• the method for forming the naps is not particularly limited, and various methods usually used in the art such as buffing with sandpaper or the like can be used. If the fluff length is too short, it is difficult to obtain an elegant appearance, and if it is too long, pilling tends to occur. Therefore, the fluff length is preferably 0.2 mm or more and 1.0 mm or less.
• silicone or the like may be applied as a lubricant to the unbrushed sheet-like material before the raising treatment.
• a lubricant By applying a lubricant, raising by surface grinding becomes possible easily, and the surface quality becomes very good, which is preferable.
• an antistatic agent may be applied before the raising treatment. This is a preferable embodiment because the application of the antistatic agent makes it difficult for the grinding powder generated from the sheet-like material to be deposited on the sandpaper.
• the surface thereof can be designed as needed.
• post-processing such as perforation and other drilling, embossing, laser processing, pinsonic processing, and printing can be performed.
• Average single fiber diameter of sheet-like material A cross section perpendicular to the thickness direction containing the fibers of the sheet-like material was observed at 3000 times using a scanning electron microscope (SEM, VE-7800 type manufactured by KEYENCE CORPORATION), and was randomly observed within a field of view of 30 ⁇ m ⁇ 30 ⁇ m. The diameters of the 50 single fibers extracted in 1 were measured in ⁇ m units up to the first fraction.
• the diameters of a total of 150 single fibers were measured, and the average value was calculated up to the first decimal place.
• the fibers are excluded from the measurement target of the average fiber diameter because they do not correspond to ultrafine fibers.
• the diameter of the single fiber is obtained by first measuring the cross-sectional area of the single fiber and calculating the diameter when the cross section is regarded as a circle. The average value using this as the population was calculated and used as the average single fiber diameter.
• Wear loss (mg) mass before wear (mg) -mass after wear (mg)
• Wear loss the value obtained by rounding off the value at the first decimal place was taken as the wear loss.
• the type of inorganic salt was identified by using an ion chromatograph device of "ICS-3000 type" manufactured by Dionex Co., Ltd. for the aqueous solution containing the inorganic salt.
• the obtained sea-island type composite fiber is cut into a fiber length of 51 mm to make a staple, a fiber web is formed through a curd and a cross wrapper, and a non-woven fabric having a basis weight of 700 g / m 2 and a thickness of 3.0 mm is processed by needle punching. Manufactured.
• the non-woven fabric thus obtained was immersed in hot water at a temperature of 98 ° C. for 2 minutes to shrink, and dried at a temperature of 100 ° C. for 5 minutes to obtain a non-woven fabric A for a fibrous base material.
• the obtained sea-island type composite fiber is cut into a fiber length of 51 mm to make a staple, a fiber web is formed through a curd and a cross wrapper, and a non-woven fabric having a basis weight of 550 g / m 2 and a thickness of 2.9 mm is formed by needle punching. Manufactured.
• the non-woven fabric thus obtained was immersed in hot water at a temperature of 98 ° C. for 2 minutes to shrink, and dried at a temperature of 100 ° C. for 5 minutes to obtain a non-woven fabric B for a fibrous base material.
• Polytetramethylene ether glycol (denoted as PTMG in the table) having a number average molecular weight (Mn) of 2,000 was used as the polyol, MDI was used as the isocyanate, and 2,2-dimethylolpropionic acid was used as a component containing a hydrophilic group.
• Prepolymers were made in toluene solvent. Ethylene glycol and ethylenediamine were added as chain extenders, and polyoxyethylene nonylphenyl ether and water were added as external emulsifiers, and the mixture was stirred. Toluene was removed by reducing the pressure to obtain an aqueous dispersion of a polymer elastic body.
• Example 1 (Non-woven fabric) As the non-woven fabric, the non-woven fabric A for a fibrous base material was used.
• a non-woven fabric with a polymer elastic material having a thickness of 2.10 mm was obtained, to which the polymer elastic material was added so that the polymer elastic material was 20% by mass.
• the obtained polymer elastic-imparted non-woven fabric was immersed in an aqueous sodium hydroxide solution having a concentration of 8 g / L heated to a temperature of 95 ° C. and treated for 5 minutes to remove the sea component of the sea-island type composite fiber. Then, the aqueous sodium hydroxide solution adhering to the non-woven fabric was immersed in water, washed for 30 minutes, and dried in a dryer at 160 ° C. for 30 minutes to obtain a sheet made of ultrafine fibers (polymer elastic body-imparting sheet).
• the obtained sheet-like material having fluff was dyed with a black dye using a liquid flow dyeing machine under a temperature condition of 120 ° C. Then, it was dried with a drier to obtain a sheet-like material having an average single fiber diameter of 4.4 ⁇ m.
• the obtained sheet-like material had a rigidity of 80 mm, a wear loss before the light resistance test of 7 mg, and a wear loss after the light resistance test of 9 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body. Further, the L value retention rate was 93%, the heat resistance was excellent, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 2 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 1 (Giving a polymer elastic body) The thermal coagulant was changed to sodium chloride (denoted as "NaCl" in Table 1). Further, the same procedure as in Example 1 was carried out except that the amount of the heat-sensitive coagulant added, the heating temperature by hot air, and the amount of the polymer elastic body applied were changed to obtain a polymer elastic body-imparted non-woven fabric.
• Example 2 This was done in the same manner as in Example 1.
• the obtained sheet-like material had a rigidity of 90 mm, a wear loss before the light resistance test of 6 mg, and a wear loss after the light resistance test of 8 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 91%, and it had excellent heat resistance, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 3 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 1 was carried out except that the amount of the heat-sensitive coagulant added, the heating temperature by hot air, and the amount of the polymer elastic body applied were changed to obtain a polymer elastic body-imparted non-woven fabric.
• Example 2 This was done in the same manner as in Example 1.
• the obtained sheet-like material had a rigidity of 55 mm, a wear loss before the light resistance test of 12 mg, and a wear loss after the light resistance test of 18 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 97%, and the polymer had excellent heat resistance, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 4 (Non-woven fabric) As the non-woven fabric, the non-woven fabric B for a fibrous base material was used.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 2 was carried out except that the heating temperature by hot air and the amount of the polymer elastic body applied were changed to obtain a polymer elastic body-imparted non-woven fabric having a thickness of 2.05 mm.
• the obtained polymer elastic-imparted non-woven fabric was immersed in an aqueous sodium hydroxide solution having a concentration of 8 g / L heated to a temperature of 95 ° C. and treated for 10 minutes to remove the sea component of the sea-island type composite fiber. Then, the aqueous sodium hydroxide solution adhering to the non-woven fabric was immersed in water, washed for 30 minutes, and dried in a dryer at 170 ° C. for 30 minutes to obtain a sheet made of ultrafine fibers (polymer elastic body-imparting sheet).
• the obtained sheet-like material having fluff was dyed with a black dye using a liquid flow dyeing machine under a temperature condition of 120 ° C. Then, it was dried with a drier to obtain a sheet-like material having an average single fiber diameter of 3.0 ⁇ m.
• the obtained sheet-like material had a rigidity of 75 mm, a wear loss before the light resistance test of 7 mg, and a wear loss after the light resistance test of 10 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body. Further, the L value retention rate was 96%, and the polymer had excellent heat resistance, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 5 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 1 was carried out except that the amount of the heat-sensitive coagulant and the heat-sensitive coagulant added and the amount of the polymer elastic body applied were changed to obtain a polymer elastic body-imparted non-woven fabric.
• Example 2 This was done in the same manner as in Example 1.
• the obtained sheet-like material had a rigidity of 100 mm, a wear loss before the light resistance test of 6 mg, and a wear loss after the light resistance test of 8 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 94%, and the polymer had excellent heat resistance, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 6 (Non-woven fabric) As in Example 4, the non-woven fabric B for a fibrous base material was used as the non-woven fabric.
• Example 4 (Giving a polymer elastic body) The same procedure as in Example 4 was carried out to obtain a non-woven fabric with a polymer elastic body.
• the obtained sheet-like material having fluff was dyed with a black dye using a liquid flow dyeing machine under a temperature condition of 120 ° C. Then, after drying with a dryer, it was cut in half perpendicular to the thickness direction to obtain a sheet-like material having an average single fiber diameter of 3.0 ⁇ m.
• the obtained sheet-like material had a rigidity of 80 mm, a wear loss before the light resistance test of 6 mg, and a wear loss after the light resistance test of 9 mg, and had a flexible texture and excellent light resistance and wear resistance. ..
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 96%, and the polymer had excellent heat resistance, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 1 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 1 was carried out except that the amount of the heat-sensitive coagulant added was changed to obtain a non-woven fabric with a polymer elastic body.
• Example 3 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 1 was carried out except that the amount of the heat-sensitive coagulant added was changed to obtain a non-woven fabric with a polymer elastic body.
• Non-woven fabric Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 2 was carried out except that no cross-linking agent was applied, to obtain a non-woven fabric with a polymer elastic body.
• Example 5 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) A non-woven fabric with a polymer elastic body was obtained in the same manner as in Example 1 except that the heating temperature was changed.
• Example 2 This was done in the same manner as in Example 1.
• the hardness and softness of the obtained sheet-like material was 120 mm, the wear loss before the light resistance test was 13 mg, and the wear loss after the light resistance test was 29 mg, and the light resistance was inferior.
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 88%, the heat resistance was not sufficient, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Non-woven fabric Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 1 was carried out to obtain a non-woven fabric with a polymer elastic body.
• Example 2 This was done in the same manner as in Example 1.
• the obtained sheet-like material had a rigidity of 130 mm, a wear loss before the light resistance test was 16 mg, and a wear loss after the light resistance test was 30 mg, and the light resistance was inferior.
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 88%, the heat resistance was not sufficient, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 7 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• a polymer elastic body To 100 parts by mass of the polymer elastic body, 3 parts by mass of a carbodiimide-based cross-linking agent is added, and a nonionic thickener (guar gum) [“Neosoft G” manufactured by Taiyo Kagaku Co., Ltd.] is used as an active ingredient. It was added so as to be 1 part by mass with respect to 100 parts by mass, and the whole was adjusted to 13% by mass with water to obtain an aqueous dispersion containing a polymer elastic body. The obtained polymer is immersed in the aqueous dispersion, then treated in hot water at a temperature of 90 ° C. for 3 minutes, and then dried with hot air at a drying temperature of 160 ° C. for 30 minutes to form a sheet-like material 100. A polymer elastic body-imparted non-woven fabric having a thickness of 2.10 mm was obtained, in which the polymer elastic body was added so that the polymer elastic body was 20% by mass in mass%.
• guar gum
• Example 2 This was done in the same manner as in Example 1.
• the obtained sheet-like material had a rigidity of 90 mm, a wear loss before the light resistance test was 20 mg, and a wear loss after the light resistance test was 33 mg, and the light resistance and the wear resistance were inferior.
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 87%, the heat resistance was not sufficient, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• Example 8 (Non-woven fabric) Similar to Example 1, the non-woven fabric A for a fibrous base material was used as the non-woven fabric.
• Example 2 (Giving a polymer elastic body) The same procedure as in Example 2 was carried out except that no cross-linking agent was applied, to obtain a non-woven fabric with a polymer elastic body.
• the obtained polymer elastic-imparted non-woven fabric was immersed in an aqueous sodium hydroxide solution having a concentration of 8 g / L heated to a temperature of 95 ° C. and treated for 5 minutes to remove the sea component of the sea-island type composite fiber.
• the aqueous sodium hydroxide solution adhering to the non-woven fabric was immersed in water, washed for 30 minutes, and dried in a dryer at 120 ° C. for 30 minutes.
• water is added to the carbodiimide-based cross-linking agent, the sheet is impregnated with the cross-linking agent prepared to have a solid content of 2% by mass, and dried in a dryer at 160 ° C. for 30 minutes to form a sheet (polymer) made of ultrafine fibers.
• An elastic body imparting sheet) was obtained.
• Example 9 (Non-woven fabric) As in Example 4, the non-woven fabric B for a fibrous base material was used as the non-woven fabric.
• the non-woven fabric is impregnated with a 10% by mass aqueous solution of PVA (NM-14 manufactured by Nippon Synthetic Chemical Co., Ltd.) having a degree of saponification of 99% and a degree of polymerization of 1400, and heated and dried at a temperature of 140 ° C. for 10 minutes to obtain a fibrous substrate.
• PVA NM-14 manufactured by Nippon Synthetic Chemical Co., Ltd.
• a PVA-imparting sheet having a PVA adhering amount of 30 parts by mass with respect to 100 parts by mass of fibers of the non-woven fabric for use was obtained.
• the obtained PVA-imparting sheet was immersed in an aqueous solution of sodium hydroxide having a concentration of 8 g / L heated to a temperature of 95 ° C. and treated for 30 minutes to remove the sea component of the sea-island type composite fiber. PVA-imparted ultrafine fiber non-woven fabric) was obtained.
• the obtained polymer elastic body-imparting sheet was immersed in water heated to 95 ° C. for 10 minutes, and dried in a dryer at 120 ° C. for 30 minutes to obtain a sheet from which the applied PVA had been removed. ..
• Example 2 This was done in the same manner as in Example 1.
• the hardness and softness of the obtained sheet-like material was 90 mm, the wear loss before the light resistance test was 11 mg, and the wear loss after the light resistance test was 26 mg, and the light resistance was inferior.
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 91%, the heat resistance was excellent, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was 1.2% by mass.
• Example 10 (Non-woven fabric) As in Example 6, the non-woven fabric B for a fibrous base material was used as the non-woven fabric.
• Example 6 This was done in the same manner as in Example 6.
• the obtained sheet-like material had a rigidity of 85 mm, a wear loss before the light resistance test was 21 mg, and a wear loss after the light resistance test was 31 mg, and the light resistance and the wear resistance were inferior.
• N-acylurea bond and isourea bond were present inside the polymer elastic body.
• the L value retention rate was 85%, the heat resistance was not sufficient, and the amount of monovalent cation-containing inorganic salt inside the polymer elastic body was less than the lower limit of detection.
• the sheet-like material obtained by the present invention includes furniture, chairs and wall materials, interior materials and shirts having a very elegant appearance as skin materials such as seats, ceilings and interiors in vehicle interiors such as automobiles, trains and aircraft.
• Uppers, trims, bags, belts, wallets, etc. of shoes such as jackets, casual shoes, sports shoes, men's shoes and women's shoes, and clothing materials used for some of them, wiping cloth, polishing cloth, CD curtains, etc.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Dispersion Chemistry (AREA)
• Inorganic Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Priority Applications (5)

Applications Claiming Priority (4)

Publications (1)

Family

ID=76476575

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Citations (8)

Family Cites Families (9)

• 2020
  • 2020-12-10 WO PCT/JP2020/046009 patent/WO2021125032A1/ja active Application Filing
  • 2020-12-10 US US17/773,915 patent/US20220380976A1/en active Pending
  • 2020-12-10 EP EP20903475.0A patent/EP4079962A4/en active Pending
  • 2020-12-10 JP JP2020569210A patent/JP6904493B1/ja active Active
  • 2020-12-10 KR KR1020227018399A patent/KR20220113689A/ko unknown
  • 2020-12-10 CN CN202080078176.2A patent/CN114729501B/zh active Active
  • 2020-12-17 TW TW109144642A patent/TW202129118A/zh unknown

Patent Citations (8)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events