Title:
ARTIFICIAL LEATHER SUBSTRATE, ARTIFICIAL LEATHER, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/082273
Kind Code:
A1
Abstract:
An artificial leather substrate including fiber-entangled bodies of an ultra-fine nylon fiber of 1.5 dtex or less, and a polymeric elastomer impregnated in and applied to the fiber-entangled bodies, the artificial leather substrate having an apparent density of 0.3-0.55 g/m3, a vertical/horizontal ratio at 20% strength of 0.5-1.25, and tear strength per 1 mm of thickness of 2.5 kgf/mm or more. Also, a method for manufacturing the artificial leather substrate, the method being provided with: a step for preparing the unprocessed artificial leather substrate, which includes the fiber-entangled bodies of the nylon ultra-fine fiber of 1.5 dtex or less and the polymeric elastomer impregnated in and applied to the fiber-entangled bodies, and has an apparent density of 0.2-0.5 g/m 3; and a step for immersing the unprocessed artificial leather substrate in a treatment fluid that includes benzyl alcohol, whereby the unprocessed artificial leather substrate is caused to shrink so that the apparent shrinkage ratio is 5-40%.
Inventors:
YOSHIMOTO SHINICHI
YAMADA TOMO
NAKAYAMA KIMIO
YONEZAWA KAZUHIRO
NISHIHARA MASAKATSU
YAMADA TOMO
NAKAYAMA KIMIO
YONEZAWA KAZUHIRO
NISHIHARA MASAKATSU
Application Number:
PCT/JP2016/083176
Publication Date:
May 18, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
KURARAY CO (JP)
KOMATSU SEIREN CO (JP)
KOMATSU SEIREN CO (JP)
International Classes:
D06N3/00; D06M10/08; D06M15/564; D06M101/34
Foreign References:
| JP2004204394A | 2004-07-22 | |||
| JPH02234981A | 1990-09-18 | |||
| JP2002242077A | 2002-08-28 | |||
| JP2011021292A | 2011-02-03 | |||
| JP2015158030A | 2015-09-03 | |||
| JP2005226213A | 2005-08-25 |
Attorney, Agent or Firm:
EGAWA, Masaru (JP)
Download PDF: