Method for salt-free dyeing

Details Method for salt-free dyeing Method for salt-free dyeing

1994-05-02

1996-02-06

Richter, Johann

Bleaching and dyeing; fluid treatment and chemical modification

Reactive dye composition, process, or product

8576, 8606, D06P 360, C09B 6700

Patent

active

054893135

ABSTRACT:
The invention relates to a process for increasing the dyeability of textile fibers and fabrics without the need to use a salt in the dyebath. The dyeing is performed on fibers or fabrics which have been treated with sodium hydroxide and an epoxy ammonium salt of the formula: ##STR1## wherein R,R',R", and R"' are alkyl radicals having 1 to 8 carbon atoms, and X.sup.- is an anionic group selected from the group consisting of sulfate, sulfonate and halide.

REFERENCES:
patent: 3652201 (1972-03-01), Bindler
patent: 4035145 (1977-07-01), Gipp et al.
patent: 4072464 (1978-02-01), Balland
patent: 4149849 (1979-04-01), Koch et al.
patent: 4615709 (1986-10-01), Nakao

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