NONWOVEN POLYESTER FABRIC WITH HIGH RESISTANCE TO WATER PRESSURE

Title:

NONWOVEN POLYESTER FABRIC WITH HIGH RESISTANCE TO WATER PRESSURE

Document Type and Number:

WIPO Patent Application WO/2004/082930

Kind Code:

A1

Abstract:

A nonwoven polyester fabric with high resistance to water pressure comprising a laminated nonwoven-fabric structure which has a value of water pressure resistance of 2 kPa or higher and is composed of a nonwoven fabric layer of ultrathin fibers made of a polyester material containing at least 1% polyolefin material and having a fiber diameter of 5 µm or smaller and a nonwoven fabric layer of long polyester fibers having a fiber diameter of 7 µm or larger, the two layers having been united with each other by thermocompression bonding. The nonwoven fabric material is suitable for use as a moisture-permeable waterproof sheet for building materials or as a shoe material. It is further suitable for use as various packaging materials, e.g., as a packaging material for drying in fields where filtering performance is required or as a packaging material for sterilization which is required to have radiation resistance and peel strength also.

More Like This:

WO/2003/001538	ELECTRICAL CABLE
JP2801055	[Title of Invention] Composite Sheet
WO/1994/014397	MULTI-LAYER ABSORBENT COMPOSITE

Inventors:

HOSOKAWA TOMOYUKI (JP)
SUZUKA RYUJI (JP)

Application Number:

PCT/JP2004/003644

Publication Date:

September 30, 2004

Filing Date:

March 18, 2004

Export Citation:

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Assignee:

ASAHI KASEI FIBERS CORP (JP)
HOSOKAWA TOMOYUKI (JP)
SUZUKA RYUJI (JP)

International Classes:

B32B5/26; B32B27/36; D01D5/098; D01F6/62; D01F6/92; D04H1/4382; D04H1/55; D04H1/559; D04H3/16; (IPC1-7): B32B5/26

Foreign References:

JPH10204764A	1998-08-04
JP2001504723A	2001-04-10
JP2002356958A	2002-12-13
JPH07207566A	1995-08-08
JPH10204764A	1998-08-04
JPH11247061A	1999-09-14
JP2002356958A	2002-12-13
JPS622062B2	1987-01-17
JPS5633511B2	1981-08-04

Other References: