GB1428873A - Production of simulated leather - Google Patents

Production of simulated leather

Info

Publication number
GB1428873A
GB1428873A GB1268674A GB1268674A GB1428873A GB 1428873 A GB1428873 A GB 1428873A GB 1268674 A GB1268674 A GB 1268674A GB 1268674 A GB1268674 A GB 1268674A GB 1428873 A GB1428873 A GB 1428873A
Authority
GB
United Kingdom
Prior art keywords
polymer
solution
dispersion
moles
prepared
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1268674A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP3734173A external-priority patent/JPS5551077B2/ja
Priority claimed from JP5103173A external-priority patent/JPS5549192B2/ja
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1428873A publication Critical patent/GB1428873A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes

Landscapes

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

Abstract

1428873 Preparation of simulated leather KURARAY CO LTD 21 March 1974 [31 March 1973 7 May 1973] 12686/74 Heading B2E Simulated leather, e.g. for making shoe uppers, is prepared by impregnating a fibrous substrate with a polyurethane elastomer (A- polymer) and forming a surface layer of a different polyurethane elastomer (B-polymer). A solution or dispersion of A-polymer, e.g. prepared by polymerisation of 1 mole of polyethylene adipate with 5 moles diphenyl methane-4, 4'-diisocyanate and 4 moles of ethylene glycol in dimethylformamide, is used to impregnate the substrate, e.g. a non-woven fabric weighing 360 g/m<SP>2</SP>, and a solution or dispersion of A-polymer and B-polymer, e.g. prepared by polymerisation of 1 mole of polycaprolactone, 4 moles diphenylmethane 4, 4'-diisocyanate and 3 moles ethylene glycol, is coated upon the impregnated substrate and a solution or dispersion of B-polymer is coated on the polymer mixture solution and the polymer solution and/or dispersions are coagulated in a coagulating bath, e.g. 35% aqueous dimethylformamide or the polymer solution or dispersion impregnating the substrate is coagulated in a coagulating bath, a solution or dispersion of B-polymer, with or without A- polymer, is coated or the substrate and this is coagulated by drying, a solution or dispersion of B-polymer is coated upon the previous layer and coagulated in a coagulating bath. Other B-polymers which may be used include the polyurethane prepared by polymerising 1 mole of polytetramethylene glycol, 3 moles of diphenylmethane-4, 4'-diisocyanate and 2 moles propylene glycol. Other A-polymers include a polyurethane prepared from polyethylene adipate, diphenylmethane 4, 4'-diisocyanate and 1. 4-butane diol. Many other polyurethane ingredients are specified. The polyurethanes may be mixed with less than 50% of a compatible polymer, e.g. polyvinyl chloride, polyurea, polyvinyl formel, polymethyl acrylate, polymethyl methacrylate, polyvinyl alcohol, polyacrylonitrile, polyvinyl acetate, cellulose derivatives, copolymers of vinylidine chloride and acrylonitrile, copolymers of vinyl chloride and vinyl acetate and natural or synthetic rubber. Suitable substrates include nylon, polyester and nylon and polystyrene mixture. Pigments, e.g. carbon black and TiO 2 may be added as well as dyes, fillers, stabilisers and coagulation controlling agents.
GB1268674A 1973-03-31 1974-03-21 Production of simulated leather Expired GB1428873A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3734173A JPS5551077B2 (en) 1973-03-31 1973-03-31
JP5103173A JPS5549192B2 (en) 1973-05-07 1973-05-07

Publications (1)

Publication Number Publication Date
GB1428873A true GB1428873A (en) 1976-03-17

Family

ID=26376480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1268674A Expired GB1428873A (en) 1973-03-31 1974-03-21 Production of simulated leather

Country Status (3)

Country Link
DE (1) DE2414251C3 (en)
GB (1) GB1428873A (en)
IT (1) IT1007756B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100570048C (en) * 2006-05-28 2009-12-16 宋健 Non-filler butyl acetate-polyvinyl alcohol copolymer emusion coating canvas and production technology thereof
CN110565395A (en) * 2019-07-25 2019-12-13 温州珍瑾服装有限公司 production process of PU synthetic leather

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS184491B1 (en) * 1975-08-29 1978-08-31 Eduard Mueck Ambroz,ludvik,cs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100570048C (en) * 2006-05-28 2009-12-16 宋健 Non-filler butyl acetate-polyvinyl alcohol copolymer emusion coating canvas and production technology thereof
CN110565395A (en) * 2019-07-25 2019-12-13 温州珍瑾服装有限公司 production process of PU synthetic leather
CN110565395B (en) * 2019-07-25 2022-06-03 温州珍瑾服装有限公司 Production process of PU synthetic leather

Also Published As

Publication number Publication date
DE2414251B2 (en) 1980-04-17
IT1007756B (en) 1976-10-30
DE2414251A1 (en) 1974-10-17
DE2414251C3 (en) 1980-12-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee