Process for producing regenerated collagen fiber and process for setting the same
US7186806B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for preparing regenerated collagen fiber which comprises treating regenerated collagen fiber with a monofunctional epoxy compound and a metal aluminum salt, in which treatment with the monofunctional epoxy compound initiated by adding sodium hydroxide to become 0.001 to 0.8 N based on the treatment solution and inorganic salt in an amount so that water absorption of the obtained regenerated collagen fiber becomes at most 100%, depending on amount of sodium hydroxide added. Also, the present invention relates to a process for setting regenerated collagen fiber obtained by the above process which comprises thermally setting the fiber by means of wet heat treatment at 50° to 160° C. and drying treatment at 20° to 220° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.