Method of producing dyed nylon walk-off mats having improved washfastness, and mats produced thereby
US5707469A · kind A · utility
4Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/929
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making a dyed nylon walk-off mat having improved washfastness includes dyeing nylon yarn, or a tufted nylon mat, in a fiber reactive dye solution having a pH in the range of about 0.5 to about 2.5. The yarn is then heated, such as by steam, at a temperature above 200.degree. F., after which the yarn is treated with an alkaline solution followed by a heat treatment. A backing, such as of rubber or vinyl, is applied to the mat at an elevated temperature. The application of the backing at elevated temperature, and the heat treatment subsequent to application of the alkaline solution, may be performed simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.