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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/142920
Kind Code:
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.

SITI Sarah
HATANO Takanori
Application Number:
Publication Date:
July 25, 2019
Filing Date:
January 18, 2019
Export Citation:
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KANEKA CORPORATION (3-18, Nakanoshima 2-chome Kita-ku, Osaka-sh, Osaka 88, 〒5308288, JP)
International Classes:
D04H3/011; D01F6/62; D04H1/435; D04H3/16
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (26th Floor, OAP TOWER 8-30, Tenmabashi 1-chome, Kita-ku, Osaka-sh, Osaka 26, 〒5306026, JP)
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