Process for producing discharge reserve prints on textile materi

Details Process for producing discharge reserve prints on textile materi Process for producing discharge reserve prints on textile materi

1981-09-21

1983-08-16

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Process of printing permanently on substrate, other than...

Resist or reserve

8464, 8532, 8549, 8638, 8639, 8694, 8922, D06P 512

Patent

active

043989136

ABSTRACT:
In the process for production of discharge reserve prints on textile material comprised of water-repellent fibers or water repellent fibers mixed with cellulose fibers, wherein a disperse dyestuff which is dischargeable to white is applied in the form of a dye liquor or printing paste to the textile material after which said material is dried or incipiently dried, and a discharge reserve printing paste is printed on the material in the desired pattern, and the thus treated material is subsequently subjected to a heat treatment at temperatures of 100.degree. to 230.degree. C., the improvement comprises said disperse dyestuff which is dischargeable to white is a dyestuff of the formula ##STR1## as more fully defined herein and wherein said discharge reserve printing paste contains, as the discharging agent, a base which produces a pH value of at least 8 in a 5% strength aqueous solution.

REFERENCES:
patent: 2083308 (1937-06-01), Senn
patent: 3398135 (1968-08-01), Mueller
patent: 3398137 (1968-08-01), Mueller
patent: 3972677 (1976-08-01), Feess et al.
patent: 4252530 (1981-02-01), Ribka et al.
patent: 4265629 (1981-05-01), Ribka et al.
patent: 4314811 (1982-02-01), Feess et al.
patent: 4314812 (1982-02-01), Feess
"Research Disclosure", vol. 198, No. 19826, pp. 425-427, (Oct. 1980).

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