Fabric blends of aramid fibers and flame resistant cellulosic fibers
US6576025B2 · kind B2 · utility
9Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The instant invention is directed to dyed fabric blends of aramid fibers and flame resistant (FR) cellulosic fibers, which retains a substantial amount of its strength and durability after dyeing. The dyeing process comprises the steps of: providing a fabric comprising a blend of aramid fibers and cellulosic fibers, dyeing the cellulosic fibers of the fabric, and dyeing the aramid fibers of the fabric. Dyeing of the aramid fibers being preformed with low agitation, an aryl ester carrier, and, preferably, at a temperature between 100-110° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.