Method of dyeing textiles
US5330540A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Oct 12, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/908
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
As a means for applying a random mottled or hammered appearance to a textile material, this invention provides a process which comprises the steps of: (a) applying to the textile material an aqueous solution having a water insoluble dye dispersed therein and an ionic component in the form of a dispersant in sufficient quantities to disperse the dye; (b) subsequently applying to the textile material an aqueous flocculent solution including a counter-ionic component, thereby electro-chemically reacting with the ionic dispersant such that the dye is precipitated from solution in non-uniform concentrations; and (c) fixing the dye to the textile material, preferably by heat. A textile material dyed according to the process is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.