Continuous processes for acid dyeing of stain resistant nylon carpets
US5030246A · kind A · utility
3Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1988 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Jul 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2964
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Carpets comprising nylon fibers which have been coated with stainblocker and subjected to dry heatsetting conditions (e.g. 200.degree. C.) are continuously dyed with acid dye liquor to deep shades of color by adding certain slats (e.g. ammonium sulfate) to the liquor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.