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公开(公告)号：EP4083311A1
公开(公告)日：2022-11-02
申请号：EP20906428.6
申请日：2020-12-03
申请人： Kuraray Co., Ltd.
发明人： HISHIDA Hiroyuki , NAKAYAMA Kimio , MEGURO Masashi
IPC分类号： D06N3/00
摘要： Disclosed is a napped artificial leather including: a fiber-entangled body obtained by entangling ultrafine fibers; and an elastic polymer impregnated into the fiber-entangled body, the napped artificial leather having, on at least one side thereof, a napped surface formed by napping the ultrafine fibers, wherein the ultrafine fibers contain 0.2 to 8 mass% of carbon black and 0.1 to 5 mass% of a chromatic pigment, and a total ratio of the carbon black and the chromatic pigment is 0.3 to 10 mass%, a content ratio of the elastic polymer is 0.1 to 15 mass%, and the elastic polymer is uncolored, and the ultrafine fibers are undyed.
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2.发明公开
公开(公告)号：EP3633100A1
公开(公告)日：2020-04-08
申请号：EP18809210.0
申请日：2018-05-21
申请人： Kuraray Co., Ltd.
发明人： NAKAYAMA Kimio , SATO Hayaki , NARUMOTO Naoto , IWAMOTO Akihisa
IPC分类号： D06N3/00
摘要： Disclosed is a grain-finished artificial leather including an artificial leather base material, and a grain layer stacked on the artificial leather base material. The artificial leather base material includes a fiber-entangled body including ultrafine fibers having an average fineness of 0.4 dtex or less, an elastic polymer, and fine particles having an average particle size of 10 µm or less. The content ratio of the fine particles is 10 to 40 mass%, and the ratio of the elastic polymer to the total amount of the elastic polymer and the fine particles is 20 to 80 mass%. Also, a total of an apparent density of the elastic polymer and an apparent density of the fine particles is 0.23 to 0.55 g/cm 3 .
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公开(公告)号：EP3904591A1
公开(公告)日：2021-11-03
申请号：EP19901746.8
申请日：2019-11-05
申请人： Kuraray Co., Ltd.
IPC分类号： D06N3/00 , D06M11/00 , D06M13/402 , D06M15/564
摘要： Disclosed is a colored napped artificial leather including: a fiber-entangled body including ultrafine fibers having an average single fiber fineness of 0.5 dtex or less; and an elastic polymer impregnated into the fiber-entangled body, the napped artificial leather having, at least on one side thereof, a napped surface formed by napping the ultrafine fibers, wherein the napped artificial leather further includes particles of a fatty acid amide-based compound that are at least attached to surfaces of the ultrafine fibers and that have an average particle size of 0.1 to 10 µm.
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公开(公告)号：EP3620572A1
公开(公告)日：2020-03-11
申请号：EP18794763.5
申请日：2018-04-24
申请人： Kuraray Co., Ltd.
发明人： NAKAYAMA Kimio , SATO Hayaki , NARUMOTO Naoto
摘要： Disclosed is an artificial leather base material including: a fabric, and an elastic polymer, fine particles, and a plasticizer that have been applied to the fabric, wherein the elastic polymer includes a (meth)acrylic elastic polymer and a polyurethane, the fine particles have a Mohs hardness of 4 or less, and the product of a bending resistance, a durometer Shore C hardness, and a thickness of the artificial leather base material is 200 to 400 mm 2 . Also disclosed is a grain-finished artificial leather obtained using the artificial leather base material.
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