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51. 发明专利

JPH06293117A STRETCHABLE LEATHER-LIKE SHEET ARTICLE 失效
公开(公告)号：JPH06293117A
公开(公告)日：1994-10-21
申请号：JP1399194
申请日：1994-01-11
申请人： KANEBO LTD
发明人： TAGAWA KENICHI , MIZUKAMI YOSHIKATSU , YAMAUCHI TOSHIO , HAYASHIDA YASUYUKI
IPC分类号： B32B27/12 , D04H3/009 , D04H3/16 , D06N3/14 , D04H3/00
摘要： PURPOSE:To provide the sheet article eliminating a defect which comes from the former tech nolo gies and being excellent in flexibility and stretch recovery. CONSTITUTION:A sheet article is obtained by forming a skin layer consisting of an adhesive layer composed of an elastic polymer and a polyurethane elastomer on a nonwoven fabric sheet and the nonwoven fabric sheet is formed by laminating polyurethane elastic filaments and fusing the contact points of laminated polyurethane filaments by the filaments themselves.

52. 发明专利

JPH062986B2 失效
公开(公告)号：JPH062986B2
公开(公告)日：1994-01-12
申请号：JP10473785
申请日：1985-05-15
申请人： KANEBO LTD
发明人： TSUKUMO KATSUYOSHI , TAGAWA KENICHI , ASANO KIMIMASA
IPC分类号： D06N3/14

53. 发明专利

JPH05186972A STRETCHABLE LEATHERY SHEETLIKE MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH05186972A
公开(公告)日：1993-07-27
申请号：JP2478992
申请日：1992-01-13
申请人： KANEBO LTD
发明人： TAGAWA KENICHI , MURAKAMI SOICHI , YAMAUCHI TOSHIO
IPC分类号： B32B5/02 , B32B5/26 , D06N3/14
摘要： PURPOSE:To obtain the subject flexible sheetlike material rich in stretchability by laminating polyurethane elastic filaments to nonelastic fiber, laminating and entangling constituent fiber thereof in a specific state, further entangling nonelastic staple fiber with the resultant fibrous sheet, and forming a filling layer and a skin layer on the formed fibrous sheet. CONSTITUTION:A polyurethane elastomer and a nonelastic polymer (e.g. a readily dyeable polyester) are respectively melted, joined at 2:1 weight ratio and spun to provide a fibrous sheet in which conjugate filament composed of both the components is opened into single fibers, fused and entangled with the polyurethane itself. The resultant fibrous sheet is then stretched in hot water and expansion and contraction are repeated to afford a fibrous sheet in which the conjugate filament is divided and kept at a length of >=2 times that between joined points of the polyester filaments under no tension and laminated in a slacked or a loopy form. Nonelastic fiber is then laminated and entangled with both surfaces of the fibrous sheet and a polyurethane skin layer is laminated through a polyurethane bonding layer to provide the objective stretchable leathery sheetlike material.

54. 发明专利

JPH05138789A STRETCHABLE SHEETLIKE OBJECT AND ITS MANUFACTURE 失效
公开(公告)号：JPH05138789A
公开(公告)日：1993-06-08
申请号：JP33416391
申请日：1991-11-21
申请人： KANEBO LTD
发明人： TAGAWA KENICHI , MURAKAMI SOICHI , YAMAUCHI TOSHIO
IPC分类号： B32B5/16 , B32B5/26 , B32B7/04 , D04H3/033 , D04H3/14
摘要： PURPOSE:To produce easily a sheetlike object excellent in rubber elastic stretchability-recovery, etc., by a method in which nonwoven fabric of polyurethane elastic filament is used as the component of fibrous base material, and while under elongated state, unelastic short fibers are laminated thereon and are slipped to be filled with elastic polymer. CONSTITUTION:A sheetlike object is constructed by filling a napped sheet with elastic polymer. Then, the napped sheet is constructed by laminating polyurethan elastic filament (A) on unelastic filament (B). The joint of the laminated polyurethane filament (A) is welded by the filament (A) itself. Further, the unelastic fibers (B) are untwisted by laminating unelastic short fibers (D) on the fiber sheet laminated over a length at least twice the length prevailing under no tension between the joints of the polyurethane elastic filament (A). On one hand, 50% elongation recovery of 80-100% is given to the sheetlike object. The layer filled with elastic polymer is buffed and then it is napped.

55. 发明专利

JPH0524272B2 失效
公开(公告)号：JPH0524272B2
公开(公告)日：1993-04-07
申请号：JP16637985
申请日：1985-07-26
申请人： KANEBO LTD
发明人： ASANO KIMIMASA , ICHIHASHI KUNIO , MURATA TARO , TAGAWA KENICHI , YOSHITOME HIDEO
IPC分类号： B32B5/26 , B32B5/28 , D06M11/00 , D06M11/36 , D06M11/38 , D06M13/08 , D06M23/00 , D06N3/00

56. 发明专利

JPH03146753A PRODUCTION OF NONWOVEN FABRIC 失效
公开(公告)号：JPH03146753A
公开(公告)日：1991-06-21
申请号：JP28099589
申请日：1989-10-28
申请人： KANEBO LTD
发明人： TAGAWA KENICHI , WAKAHARA HIROYUKI
IPC分类号： D04H1/435 , D04H1/482
摘要： PURPOSE:To obtain nonwoven fabric suitable as substrate for artificial leather, having excellent flexibility and soft handle, hardly causing uniformly folded strip by interlacing web comprising shrinkable polyester fibers, subjecting to hot water shrinking treatment, then immersing in water, cooling, squeezing and drying. CONSTITUTION:Web consisting of shrinkable polyester fibers (preferably fibers shrinking preferably >=15% in hot water at 90 deg.C) is interlaced, subjected to hot water shrinking treatment, then immersed in water, cooled to

57. 发明专利

JPH01192882A HIGHLY MOISTURE-PERMEABLE LEATHERY SHEETLIKE MATERIAL 失效
公开(公告)号：JPH01192882A
公开(公告)日：1989-08-02
申请号：JP1530388
申请日：1988-01-26
申请人： KANEBO LTD
发明人： NAKAGAWA KOJI , TAGAWA KENICHI , ASANO KIMIMASA
IPC分类号： D06N3/14 , D06N3/18
摘要： PURPOSE:To obtain the title highly moisture-permeable sheetlike material close to natural leather, by constituting a dry film of a specific undercoating layer and topcoating layer in combination in a leathery sheet prepared by laminating the dry film of a polyurethane elastomer to a substrate. CONSTITUTION:A polyurethane elastomer layer laminated to a substrate in a leathery sheetlike material obtained by a conventional dry method is constituted of (A) an undercoating layer consisting of a polyurethane elastomer containing 20-50wt.% polyethylene glycol as a polyol component and (B) a topcoating layer consisting of a polyurethane elastomer containing 5-18wt.% polyethylene glycol as a polyol component and the total amount of both is within the range of 20-70g/m expressed in terms of the elastomer weight. Thereby, the aimed leathery sheet having a moisture permeability as high as 4mg/cm hr, rich in water and heat resistance and excellent in fashionability and functionality is obtained. Furthermore, the weight ratio (elastomer weight ratio) of both layers (A) and (B) is preferably within the range of 2:1-3.5:1.

58. 发明专利

JPH01168975A PRODUCTION OF ARTIFICIAL LEATHER HAVING SMOOTH THIN LAYER MICROPOROUS GRAIN 失效
公开(公告)号：JPH01168975A
公开(公告)日：1989-07-04
申请号：JP32794687
申请日：1987-12-24
申请人： KANEBO LTD
发明人： ASANO KIMIMASA , TAGAWA KENICHI , NAKAGAWA KOJI
IPC分类号： D06N3/14
摘要： PURPOSE:To obtain the title soft artificial leather having excellent smoothness in wet method, by applying a polyurethane elastomer to a mold-releasing belt having smoothness, laminating a wet base to the elastomer-coated belt, heating the elastomer from the face opposite to the base and solidifying the elastomer with steam generated in the base. CONSTITUTION:For example, a water-mixable solvent solution containing a polyurethane elastomer (e.g., consisting of polybutylene adipate and organic diisocyanate) is applied on a mold release-treated smooth paper or stainless belt and one face of wet base (e.g., nonwoven consisting of nylon stable) having 30-150% restricted ratio is laminated thereon and then the elastomer is heated from other face and the above-mentioned polyurethane elastomer is solidified by saturated steam generated in the base and then released from the above- mentioned belt and water-dried to provide the artificial leather having smooth thin film layer microporous grain and

59. 发明专利

JPH01124689A PRODUCTION OF AIR-PERMEABLE ARTIFICIAL LEATHER 失效
公开(公告)号：JPH01124689A
公开(公告)日：1989-05-17
申请号：JP27800187
申请日：1987-11-02
申请人： KANEBO LTD
发明人： NAKAGAWA KOJI , TAGAWA KENICHI , ASANO KIMIMASA
IPC分类号： C08J9/26 , C08J9/28 , C08J9/36 , D06M15/00 , D06N3/00
摘要： PURPOSE:To obtain an artificial leather outstanding in air permeability, by forming, on one surface of a porous flexible sheet material, a non-porous continuous film consisting of a polymer so as to result in parts differing in film thickness from each other followed by coating the film with a solvent soluble for said polymer to develop air-permeable pores. CONSTITUTION:A polymer (e.g. polyurethane elastomer) is coated on one surface of a porous flexible sheet material made up of nonwoven fabric consisting of natural or synthetic fiber and a polymeric binder (e.g. polyurethane elastomer) to form a non-porous continuous film consisting of parts 10-30mu thick and other parts >=80mu thick. Thence, the above film is coated with a solvent soluble for said polymer (e.g. dimethylformamide) by e.g. the gravure coating process to develop random air-permeable pores, thus obtaining the objective artificial leather excellent in air permeability.

60. 发明专利

JPS6253348A PRODUCTION OF SHEET HAVING POROUS GRAIN SURFACE 失效
公开(公告)号：JPS6253348A
公开(公告)日：1987-03-09
申请号：JP19236585
申请日：1985-08-30
申请人： KANEBO LTD
发明人： TAGAWA KENICHI , ASANO KIMIMASA , SAGI KOJIRO
IPC分类号： C08J9/28
摘要： PURPOSE:To obtain a sheet having excellent moisture-permeability and mechanical properties and suitable for shoes and clothes, by coating a sheet substrate with a water-soluble organic solvent solution of a polyurethane elastomer containing zeolite and coagulating the solution in wet state. CONSTITUTION:Zeolite is added to a water-soluble organic solvent solution of a polyurethane elastomer, and the mixture is applied to a sheet substrate and subjected to wet-coagulation in an aqueous medium to obtain a sheet having porous grain surface. The zeolite is preferably synthetic zeolite powder having particle diameter of about 0.1-10mu and its amount added to the polyurethane elastomer solution is >=5wt%, preferably >=10wt% based on the solid component.

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