Title:
ARTIFICIAL LEATHER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/244882
Kind Code:
A1
Abstract:
Provided is artificial leather that combines good texture, high wear resistance, and a high-quality appearance without the addition of polyurethane resin. Artificial leather that includes at least a surface fiber layer constituting a first surface, the artificial leather being characterized by the following: the surface fiber layer includes main fibers and a thermoplastic resin; the main fibers have a fineness of 0.01 dtex to 0.5 dtex, inclusive; at least a part of the thermoplastic resin adheres between the main fibers; the thermoplastic resin in the surface fiber layer is such that the distance to which a probe is pushed thereinto under prescribed conditions using an atomic force microscope is 20 nm to 200 nm, inclusive; the number average volume of the thermoplastic resin in the surface fiber layer is 3,500 μm3 to 24,000 μm3, inclusive; the number average volume of the thermoplastic resin in a first surface fiber layer when the first surface is measured by X-ray CT is 5,000 μm3 to 14,000 μm3, inclusive; the volume number density of the thermoplastic resin in the first surface fiber layer is 1.1×1012/m3 to 3.0×1012/m3, inclusive; etc.
Inventors:
YAMAGUCHI HIDEHIRO (JP)
MATSUMOTO MITSUAKI (JP)
RIKITAKE MASATO (JP)
WATANABE YUSUKE (JP)
HIRONAKA DAISUKE (JP)
TADOKORO YOSHIYUKI (JP)
YAMAMOTO AGURU (JP)
FUJIMOTO YOKO (JP)
ITO HIDEMI (JP)
MATSUMOTO MITSUAKI (JP)
RIKITAKE MASATO (JP)
WATANABE YUSUKE (JP)
HIRONAKA DAISUKE (JP)
TADOKORO YOSHIYUKI (JP)
YAMAMOTO AGURU (JP)
FUJIMOTO YOKO (JP)
ITO HIDEMI (JP)
Application Number:
PCT/JP2022/021013
Publication Date:
November 24, 2022
Filing Date:
May 20, 2022
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
D06N3/00
Foreign References:
| JP2021070904A | 2021-05-06 | |||
| JP2021070881A | 2021-05-06 | |||
| JP2014227637A | 2014-12-08 | |||
| JP2001226881A | 2001-08-21 | |||
| JP2006089863A | 2006-04-06 | |||
| JP5685003B2 | 2015-03-18 | |||
| JP6118174B2 | 2017-04-19 | |||
| JP470494A | 1994-01-20 | |||
| JP5919627B2 | 2016-05-18 | |||
| JPH07216756A | 1995-08-15 | |||
| JPH0316427B2 | 1991-03-05 | |||
| JP4835181B2 | 2011-12-14 |
Other References:
T. HILDEBRANDP. RUEGSEGGER: "A new method for the model-independent assessment of thickness in three-dimensional images", J. OF MICROSCOPY, vol. 185, 1996, pages 67 - 75
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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