Aromatic polyamide fibers and method of printing such fibers with acid dyes in the presence of hexamethylene diamine dihydrochloride impregnated in fiber
US5074889A · kind A · utility
10Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/925
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A diamine salt and a surfactant are imbibed into never-dried aromatic polyamide fibers which may be printed or overprinted with acid dyes, after drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.