Title:
FIBER SHEET STRUCTURE INCLUDING MULTIPLE WOUND YARN BUNDLE FORMED OF GELATIN FIBER BUNDLE AND THERMOPLASTIC RESIN FIBER BUNDLE
Document Type and Number:
WIPO Patent Application WO/2023/223946
Kind Code:
A1
Abstract:
[Problem] A purpose of the present invention is to provide a fiber sheet structure that includes a multiple wound yarn bundle formed of a thermoplastic resin fiber bundle and a gelatin fiber bundle, and that has a preferable texture, a high tensile strength, and a great rupture elongation as compared to conventional gelatin fibers. Another purpose of the present invention is to provide a fiber sheet structure that includes a multiple wound yarn bundle formed of a thermoplastic resin fiber bundle and a gelatin fiber bundle, and that has excellent cell adhesiveness for fixing cells thereto and has slipperiness for making inflammation unlikely to occur when a biological tissue is rubbed against the same. [Solution] This fiber sheet structure includes a knit structure and has a cell placement surface and a back surface. The average pore size of the back surface is less than the average pore size of the cell placement surface. The knit structure includes a multiple wound yarn bundle formed of a gelatin fiber bundle and a thermoplastic resin fiber bundle. The thickness of the fiber sheet structure is 30-5000 μm. The number of gelatin fibers forming the gelatin fiber bundle is 5-60. The fineness of the gelatin fibers is 0.5-10 dtex. The total number of the thermoplastic resin fiber bundle and the gelatin fiber bundle in the multiple wound yarn bundle is 2-20. The ratio of the numbers of the gelatin fiber bundle and the thermoplastic resin fiber bundle in the multiple wound yarn bundle is 5:1 to 1:5.
Inventors:
SAKURAI HIROSHI (JP)
HINO YASUSHI (JP)
ZHANG YAQI (JP)
HINO YASUSHI (JP)
ZHANG YAQI (JP)
Application Number:
PCT/JP2023/017834
Publication Date:
November 23, 2023
Filing Date:
May 12, 2023
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
D01F4/00; A61L27/22; A61L27/60; D02G3/04; D04B1/14
Domestic Patent References:
| WO2021100718A1 | 2021-05-27 |
Foreign References:
| JP2010180482A | 2010-08-19 | |||
| JP2001089929A | 2001-04-03 |
Attorney, Agent or Firm:
TAMEYAMA Taro (JP)
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