Title:
FILAMENT NONWOVEN FABRIC AND BAG-LIKE ARTICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/085276
Kind Code:
A1
Abstract:
A filament nonwoven fabric according to the present invention is formed of a resin that has a polyethylene terephthalate component of 99% or more. With respect to this filament nonwoven fabric, the dry heat areal shrinkage ratio at 100°C in 3 minutes is 30% or more; the birefringence (∆n) of the constituent fibers is 10 × 10-3 to 60 × 10-3; and the specific gravity of the constituent fibers is 1.335 to 1.340 g/cm3.
Inventors:
IWANE MASAYOSHI (JP)
NISHIMURA HIROKAZU (JP)
YOSHIDA HIDEO (JP)
MINEMURA SHINICHI (JP)
NISHIMURA HIROKAZU (JP)
YOSHIDA HIDEO (JP)
MINEMURA SHINICHI (JP)
Application Number:
PCT/JP2022/041584
Publication Date:
May 19, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
TOYOBO MC CORP (JP)
International Classes:
D04H3/011; B65D30/02; D01F6/62; D04H1/16; D04H3/105
Domestic Patent References:
| WO2020116569A1 | 2020-06-11 |
Foreign References:
| JPS63235560A | 1988-09-30 | |||
| JPS6269872A | 1987-03-31 | |||
| JPH082552A | 1996-01-09 | |||
| JPS60194159A | 1985-10-02 | |||
| JP2020190072A | 2020-11-26 | |||
| JP2014240531A | 2014-12-25 | |||
| JP2003336151A | 2003-11-28 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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