Heather dyed fabric and method of producing same
US5667533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/655
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Textile fabrics and garments having a random, irregular heather-like appearance are produced by impregnating a textile fabric with an aqueous pretreaement composition comprising a fiber reactive cationic compound, aging the impregnated fabric in a moistened state for about 4 to 24 hours to allow the fiber reactive cationic compound to react with the fibers of the fabric, rinsing the fabric to remove unreacted cationic compound, immersing the fabric in an aqueous bath at a pH of less than 7 and gradually introducing dyestuffs to the bath over a period of at least 15 minutes, and fully exhausting the dyestuffs onto the fabric. The process is applicable for dyeing either piece goods or garments. Where the fabric is in the form of garments, it is preferred that the aging be carried out by storing the garments in an insulated sealed container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.