Title:
PROCESS FOR DYEING AND STAIN-PROOFING NYLON CARPETS
Document Type and Number:
WIPO Patent Application WO2001068972
Kind Code:
A3
Abstract:
This invention relates to a process for increasing the stain resistance of an acid dyeable nylon filament or staple fiber, especially in the form of a textile or floor covering article such as a carpet. The invention involves the addition of a stain blocker to the dye bath through which the textile article is passed. The stain blocker contains phenolic groups and is free of sulfonic and carboxylic groups. After the dyeing process, the carpet is subjected to sequential heat treatments.
Inventors:
SUN YANHUI
Application Number:
PCT/US2001/006128
Publication Date:
May 10, 2002
Filing Date:
February 26, 2001
Export Citation:
Assignee:
DU PONT (US)
International Classes:
D06M15/41; D06N7/00; D06P1/00; D06P1/56; (IPC1-7): D06P3/24; D06P1/56; D06M15/41
Domestic Patent References:
| WO1994018378A1 | 1994-08-18 |
Foreign References:
| EP0268374A2 | 1988-05-25 | |||
| EP0332342A2 | 1989-09-13 | |||
| EP0839858A2 | 1998-05-06 |
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