Plush leather-like sheet product and method for production thereof
US6811572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N3/146
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention relates to a suede-like sheet which is characterized in that, in a suede-like sheet comprising primarily ultrafine fiber of no more than 0.3 dtex and polyurethane, said polyurethane employs polymer diol containing 30 wt % to 90 wt % polycarbonate diol, said sheet contains from 20 wt % to 60 wt % of said polyurethane, the average nap length is 300 &mgr;m to 2000 &mgr;m, and the percentage retention of the local fatigue resistance before and after an accelerated ageing treatment is at least 50%, and it also relates to a method for the preparation of a suede-like sheet which is characterized in that, in the production of a suede-like sheet comprising a nonwoven fabric of ultrafine fibre of no more than 0.3 dtex and a polyurethane which employs polymer diol containing 30 wt % to 90 wt % polycarbonate diol, a buffing treatment is carried out after applying an antistatic agent to the sheet. By means of the present invention, it is possible to obtain a suede-like sheet which is ideal for clothing or as a seating fabric, where there is little exposure of polyurethane surface, which possesses an excellent nap which is elegant and outstanding in its evenness and, furthe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.