公开(公告)号：US20140305306A1

公开(公告)日：2014-10-16

申请号：US14360852

申请日：2012-11-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuji Iyama ,  Akito Kuroda ,  Yoshikazu Yakake

IPC: B01D39/14 ,  B03C3/66

CPC classification number: B01D39/14 ,  B01D39/16 ,  B01D2239/0435 ,  B01D2239/0622 ,  B01D2239/064 ,  B01D2239/1233 ,  B03C3/28 ,  B03C3/66 ,  D04H1/4382 ,  D04H1/56 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16

Abstract: A nonwoven fabric includes mixed fibers having different fiber diameters. A group of fibers having a fiber diameter of 5.0 μm or less (fiber group A) is present at a volume fraction of 20 to 80 vol %, a group of fibers having a fiber diameter of 50.0 μm or more (fiber group B) is present at a volume fraction of 1 to 40 vol %, and a group of fibers having a fiber diameter of more than 5.0 μm and less than 50.0 μm (fiber group C) is present at a volume fraction of 0 to 79 vol %. The ratio of the median fiber diameter (B′) of fiber group B to the median fiber diameter (A′) of fiber group A (B′/A′) is 35 or more.

Abstract translation: 无纺布包括具有不同纤维直径的混合纤维。 纤维直径为5.0μm以下的纤维（纤维群A）以20〜80体积％的体积分率存在，纤维直径为50.0μm以上的纤维（纤维群B）为 体积分数为1〜40体积％，纤维直径大于5.0μm且小于50.0μm的纤维组（纤维组C）的体积分数为0〜79体积％。 纤维组B的中值纤维直径（B'）与纤维组A（B'/ A'）的中等纤维直径（A'）的比例为35以上。

公开(公告)号：US20140305090A1

公开(公告)日：2014-10-16

申请号：US14364109

申请日：2012-12-14

Applicant: TORAY INDUSTRIES, INC.

Inventor： Akito Kuroda ,  Yuji Iyama ,  Yoshikazu Yakake

IPC: B01D39/16 ,  D04H1/4382 ,  D04H13/00 ,  D04H3/153

CPC classification number: B01D39/163 ,  B01D39/16 ,  B01D2239/064 ,  B01D2239/1233 ,  B03C3/28 ,  D04H1/4382 ,  D04H1/56 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16 ,  D04H13/001 ,  Y10T442/625 ,  Y10T442/626

Abstract: Provided are a mixed-fiber nonwoven fabric suitable for air filters and a filter medium using the mixed-fiber nonwoven fabric. The nonwoven fabric includes at least two types of fibers having different melting points, which fibers are low melting point fibers made of a polyolefin resin component A, and high melting point fibers made of a high melting point resin component B having a higher melting point than that of the polyolefin resin component A. The number average fiber diameter of the high melting point fibers is larger than that of the low melting point fibers. At least one high melting point fiber having a fiber diameter of 20 μm to 100 μm is present per 1.00 mm of the length of the cross section of the nonwoven fabric. The number average fiber diameter of all fibers constituting the nonwoven fabric falls within the range of 0.3 μm to 10 μm.

Abstract translation: 提供适用于空气过滤器的混合纤维无纺布和使用该混合纤维无纺织物的过滤介质。 该无纺布包括至少两种不同熔点的纤维，该纤维是由聚烯烃树脂组分A制成的低熔点纤维，和由熔点高的熔点高熔点树脂组分B制成的高熔点纤维 聚烯烃树脂组分A的高熔点纤维的数均纤维直径大于低熔点纤维的数均纤维直径。 至少一个纤维直径为20μm至100μm的高熔点纤维每隔1毫米长的无纺织物横截面存在。 构成无纺布的全部纤维的数均纤维直径在0.3μm〜10μm的范围内。

公开(公告)号：US09266046B2

公开(公告)日：2016-02-23

申请号：US14364109

申请日：2012-12-14

Applicant: TORAY INDUSTRIES, INC.

Inventor： Akito Kuroda ,  Yuji Iyama ,  Yoshikazu Yakake

IPC: B01D46/00 ,  B01D39/16 ,  B03C3/28 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16 ,  D04H1/4382 ,  D04H1/56 ,  D04H13/00

CPC classification number: B01D39/163 ,  B01D39/16 ,  B01D2239/064 ,  B01D2239/1233 ,  B03C3/28 ,  D04H1/4382 ,  D04H1/56 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16 ,  D04H13/001 ,  Y10T442/625 ,  Y10T442/626

Abstract: Provided are a mixed-fiber nonwoven fabric suitable for air filters and a filter medium using the mixed-fiber nonwoven fabric. The nonwoven fabric includes at least two types of fibers having different melting points, which fibers are low melting point fibers made of a polyolefin resin component A, and high melting point fibers made of a high melting point resin component B having a higher melting point than that of the polyolefin resin component A. The number average fiber diameter of the high melting point fibers is larger than that of the low melting point fibers. At least one high melting point fiber having a fiber diameter of 20 μm to 100 μm is present per 1.00 mm of the length of the cross section of the nonwoven fabric. The number average fiber diameter of all fibers constituting the nonwoven fabric falls within the range of 0.3 μm to 10 μm.

Abstract translation: 提供适用于空气过滤器的混合纤维无纺布和使用该混合纤维无纺织物的过滤介质。 该无纺布包括至少两种不同熔点的纤维，该纤维是由聚烯烃树脂组分A制成的低熔点纤维，和由熔点高的熔点高熔点树脂组分B制成的高熔点纤维 聚烯烃树脂组分A的高熔点纤维的数均纤维直径大于低熔点纤维的数均纤维直径。 至少一个纤维直径为20μm至100μm的高熔点纤维每隔1毫米长的无纺织物横截面存在。 构成无纺布的全部纤维的数均纤维直径在0.3μm〜10μm的范围内。

公开(公告)号：US20170183815A1

公开(公告)日：2017-06-29

申请号：US15300101

申请日：2015-03-20

Applicant: TORAY INDUSTRIES, INC.

Inventor： Akito Kuroda ,  Tomoharu Hirose ,  Masaru Ueno ,  Koji Yamano ,  Katsuya Okajima ,  Yukihiro Matsuzaki ,  Yu Matsuoka ,  Hajime Nishimura ,  Satoshi Yanagisawa

IPC: D06N3/00 ,  B32B3/30 ,  B32B5/06 ,  B32B5/26 ,  D01D5/36 ,  D06N3/04 ,  D01F8/06 ,  D04H1/74 ,  D04H1/44 ,  D04H1/4291 ,  D04H1/435 ,  B32B5/08 ,  B32B5/02 ,  D01F8/14

CPC classification number: D06N3/0011 ,  B32B3/30 ,  B32B5/022 ,  B32B5/024 ,  B32B5/026 ,  B32B5/06 ,  B32B5/08 ,  B32B5/26 ,  B32B2250/20 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/023 ,  B32B2262/0284 ,  B32B2262/12 ,  B32B2274/00 ,  B32B2437/00 ,  B32B2601/00 ,  B32B2605/003 ,  B32B2605/08 ,  D01D5/36 ,  D01F8/06 ,  D01F8/14 ,  D04H1/4291 ,  D04H1/435 ,  D04H1/44 ,  D04H1/74 ,  D06N3/0004 ,  D06N3/0006 ,  D06N3/0009 ,  D06N3/004 ,  D06N3/04 ,  D06N2201/0227 ,  D06N2201/10 ,  D06N2203/045 ,  D10B2501/00 ,  D10B2505/08 ,  D10B2505/12

Abstract: The present invention provides an artificial leather including an entangled fiber mass of ultrafine fibers having a monofilament fineness of 0.01 dtex or more and 0.50 dtex or less and a polymeric elastomer; wherein at least one surface is napped; the cross-sectional profile curve of the napped surface has an arithmetic mean height Pa of 26 μm or more and 100 μm or less; the arithmetic mean height Pa of the cross-sectional profile curve of the opposite surface is 20% or more and 80% or less of the cross-sectional roughness Pa of the napped side; the existence frequency of asperity peaks found in the cross-sectional profile curve of the napped surface is 1.8 or more and 20 or less per 1.0 mm; and a woven or knitted fabric lamination is present near the opposite surface at a depth position of 10% or more and 50% or less.

公开(公告)号：US09180392B2

公开(公告)日：2015-11-10

申请号：US14360852

申请日：2012-11-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuji Iyama ,  Akito Kuroda ,  Yoshikazu Yakake

IPC: B01D39/00 ,  B01D39/14 ,  B01D39/16 ,  B03C3/28 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16 ,  D04H1/4382 ,  D04H1/56 ,  B03C3/66

CPC classification number: B01D39/14 ,  B01D39/16 ,  B01D2239/0435 ,  B01D2239/0622 ,  B01D2239/064 ,  B01D2239/1233 ,  B03C3/28 ,  B03C3/66 ,  D04H1/4382 ,  D04H1/56 ,  D04H3/016 ,  D04H3/153 ,  D04H3/16

Abstract: A nonwoven fabric includes mixed fibers having different fiber diameters. A group of fibers having a fiber diameter of 5.0 μm or less (fiber group A) is present at a volume fraction of 20 to 80 vol %, a group of fibers having a fiber diameter of 50.0 μm or more (fiber group B) is present at a volume fraction of 1 to 40 vol %, and a group of fibers having a fiber diameter of more than 5.0 μm and less than 50.0 μm (fiber group C) is present at a volume fraction of 0 to 79 vol %. The ratio of the median fiber diameter (B′) of fiber group B to the median fiber diameter (A′) of fiber group A (B′/A′) is 35 or more.

Abstract translation: 无纺布包括具有不同纤维直径的混合纤维。 纤维直径为5.0μm以下的纤维（纤维群A）以20〜80体积％的体积分率存在，纤维直径为50.0μm以上的纤维（纤维群B）为 体积分数为1〜40体积％，纤维直径大于5.0μm且小于50.0μm的纤维组（纤维组C）的体积分数为0〜79体积％。 纤维组B的中值纤维直径（B'）与纤维组A（B'/ A'）的中等纤维直径（A'）的比例为35以上。