Title:
MELT-BLOWN NONWOVEN FABRIC AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/106231
Kind Code:
A1
Abstract:
Provided is a melt-blown nonwoven fabric manufacturing method with which it is possible to improve the rate of elongation of a melt-blown nonwoven fabric formed of fibers containing a poly(3-hydroxyalkanoate)-based resin, and suppress thermal contraction of the melt-blown nonwoven fabric. The present invention pertains to a melt-blown nonwoven fabric manufacturing method comprising a step for heating a first melt-blown nonwoven fabric to obtain a second melt-blown nonwoven fabric. The first melt-blown nonwoven fabric is formed from a resin composition containing a poly(3-hydroxyalkanoate)-based resin. In the step, the first melt-blown nonwoven fabric is heated in a temperature range that is not lower than a temperature 10°C lower than an endothermic initiation temperature of the resin composition as determined through differential scanning calorimetry but that is not higher than a temperature 10°C lower than the melting point of the resin composition.
Inventors:
OTANI SHUNSUKE
MIYAMOTO TAKAYUKI
YAJIMA KENTARO
MIYAMOTO TAKAYUKI
YAJIMA KENTARO
Application Number:
PCT/JP2022/044568
Publication Date:
June 15, 2023
Filing Date:
December 02, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
D06C7/00; D01F6/62; D04H3/011; D04H3/16
Foreign References:
| JP2016513153A | 2016-05-12 | |||
| JPH07300758A | 1995-11-14 | |||
| JPH08508789A | 1996-09-17 | |||
| US20200032437A1 | 2020-01-30 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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