Method for increasing color density and improving color fastness of dyed fabrics
US4619667A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 11, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Jun 11, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2101/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a method for increasing the color density of a dyed fabric material of, especially, a synthetic fiber as well as the fastness of the color to rubbing and washing. The inventive method comprising (a) pretreating the dyed fabric material with an organopolysiloxane which is an amino-modified organopolysiloxane or a dimethylpolysiloxane, and then (b) exposing the thus pretreated dyed fabric material to low temperature plasma of an inorganic gas under a reduced pressure. The inorganic gas is preferably oxygen or a gaseous mixture containing at least 10% by volume of oxygen. The color-deepening effect is particularly remarkable when the color of the dyed fabric material is black to impart increased graveness and vividness of the color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.