Method of increasing chlorine fastness
US8956423B2 · kind B2 · utility
0Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Oct 16, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of increasing the chlorine fastness of dyed synthetic polyamide fiber materials, which comprises treating the fiber material after dyeing with an aqueous liquor comprising a thiourea/formaldehyde/bisphenol condensate or a thiourea/polyisocyanate adduct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.