公开(公告)号：US20190184317A1

公开(公告)日：2019-06-20

申请号：US16223999

申请日：2018-12-18

Applicant: UNITIKA LTD.

Inventor： Yukihiro KIHARA

IPC: B01D39/16 ,  B01D46/54 ,  B32B5/02 ,  B32B5/26 ,  B32B7/12

CPC classification number: B01D39/163 ,  B01D39/1623 ,  B01D46/546 ,  B01D2239/025 ,  B01D2239/0618 ,  B01D2239/0668 ,  B01D2239/0681 ,  B01D2239/1233 ,  B01D2239/1291 ,  B01D2275/10 ,  B32B5/022 ,  B32B5/26 ,  B32B7/12 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2307/724

Abstract: Spun bond nonwoven fabric comprises, as constituting filament, conjugate polyester continuous filaments having a cross-sectional shape of a nearly “Y4”-like shape. The continuous filament is composed of a nearly V-shape portion 6 in the nearly Y4-like shape, formed from low melting point polyester, and the other nearly+shape portion 5 therein, formed from high melting point polyester. The continuous filaments are heat-bonded with each other by the low melting point polyester. The spun bond nonwoven fabric is bonded by a powder type or spider web type hot melt adhesive agent with the melt blown nonwoven fabric.

公开(公告)号：US20170151514A1

公开(公告)日：2017-06-01

申请号：US15300164

申请日：2014-03-31

Applicant: UNITIKA LTD.

Inventor： Yukihiro KIHARA

IPC: B01D39/16 ,  B32B5/26 ,  B01D46/54 ,  B32B5/02

CPC classification number: B01D39/163 ,  B01D39/1623 ,  B01D46/546 ,  B01D2239/025 ,  B01D2239/0618 ,  B01D2239/0668 ,  B01D2239/0681 ,  B01D2239/1233 ,  B01D2239/1291 ,  B01D2275/10 ,  B32B5/022 ,  B32B5/26 ,  B32B7/12 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2307/724

Abstract: [Problem] To provide an air filter material in which spun bond nonwoven fabric and melt blown nonwoven fabric are laminated and integrated without reducing air permeability.[Solution] Spun bond nonwoven fabric comprises, as constituting filament, conjugate polyester continuous filaments having a cross-sectional shape of a nearly “Y4”-like shape. The continuous filament is composed of a nearly V-shape portion 6 in the nearly Y4-like shape, formed from low melting point polyester, and the other nearly+shape portion 5 therein, formed from high melting point polyester. The continuous filaments are heat-bonded with each other by the low melting point polyester. The spun bond nonwoven fabric is bonded by a powder type or spider web type hot melt adhesive agent with the melt blown nonwoven fabric.

公开(公告)号：US20160060798A1

公开(公告)日：2016-03-03

申请号：US14784854

申请日：2013-12-26

Applicant: UNITIKA LTD.

Inventor： Yukihiro KIHARA

IPC: D04H3/14 ,  A47G27/02 ,  D05C17/02

CPC classification number: D04H3/14 ,  A47G27/02 ,  D04H3/011 ,  D04H3/018 ,  D04H3/147 ,  D05C17/023 ,  D10B2331/04 ,  D10B2503/042

Abstract: The primary cloth is stabilized after a tufting step. The primary cloth is a nonwoven fabric of continuous filaments which are more than 10 dtex in fineness. The continuous filament is consisting of polyester which has a nearly ‘V’ part made of a low melting point polyester and a nearly ‘+’ part made of a high melting point polyester. The continuous filaments are one other bonded by melting or softening of the low melting point polyester to form the nonwoven fabric.

Abstract translation: 主布在簇绒步骤后稳定。 主布是连续长丝的非织造织物，其细度超过10分特。 连续长丝由聚酯制成，该聚酯具有由低熔点聚酯制成的接近“V”部分和由高熔点聚酯制成的近'+'部分。 连续长丝通过低熔点聚酯的熔融或软化而彼此接合以形成非织造织物。