Water-free fabric dyeing process and dye compositions
US11377789B2 · kind B2 · utility
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6References
13Claims
0Family size
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Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jan 29, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/001
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A non-aqueous fabric dyeing method using a non-aqueous dyeing composition is described. The dyeing composition is a fluid at room temperature; contains no more than 5% water, no more than 5% VOCs and no more than 2.5% by weight vinyl monomers. The dye composition includes an organic dye that is solid at temperatures up to 130° C. and which sublimes or boils at 130 to 220° C., and further includes a carrier that is a liquid in the temperature range of 130 to 220° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.