Resist printing on hydrophobic fiber materials
US6616711B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/922
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a process for printing hydrophobic fiber materials with disperse dyes, which comprises 1) dyeing or printing the fiber materials overall with a disperse dye, and 2) printing the fiber materials in areas with a printing paste, which comprises as component (A), at least one cationic assistant, as component (B), at least one polyethylene glycol, as component (C), at least one nonionogenic detergent and, optionally, as component (D), at least one disperse dye, it being possible for steps 1) and 2) to be carried out in any sequence and for step 2) to be carried out repeatedly without using any dye, or using different dyes, and, if necessary, drying the fiber material thus treated and then fixing the dye on the fiber material by heat treatment. The novel process affords multicolored prints having sharp contours and very good fastness to hot light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.