Title:
METHOD FOR PRODUCING NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2019/142920
Kind Code:
A1
Abstract:
The present invention relates to a method for producing a nonwoven fabric, which comprises a step A for obtaining fibers by melt spinning a composition that contains a poly(3-hydroxyalkanoate) with use of a spinneret, a step B for obtaining a web by forming the fibers obtained in the step A into a web, and a step C for subjecting the web obtained in the step B to thermal bonding under pressure, and wherein the thermal bonding temperature under pressure in the step C is from (Tc - 45)°C to (Tc + 5)°C (inclusive) (wherein Tc is the crystallization temperature of the poly(3-hydroxyalkanoate)). Consequently, the present invention provides a production method which exhibits good formability of a nonwoven fabric that contains a poly(3-hydroxyalkanoate), and by which even a nonwoven fabric that substantially contains only a poly(3-hydroxyalkanoate) as the resin component is able to be produced.
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Inventors:
SITI SARAH
HATANO TAKANORI
HATANO TAKANORI
Application Number:
PCT/JP2019/001514
Publication Date:
July 25, 2019
Filing Date:
January 18, 2019
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
D04H3/011; D01F6/62; D04H1/435; D04H3/16
Domestic Patent References:
| WO2017122679A1 | 2017-07-20 | |||
| WO2014068943A1 | 2014-05-08 |
Foreign References:
| JP2002532618A | 2002-10-02 | |||
| JP2002129459A | 2002-05-09 | |||
| JP2004031460A | 2004-01-29 | |||
| JPH08325916A | 1996-12-10 | |||
| JP2013124424A | 2013-06-24 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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