Process for the printing with developing dyes

Details Process for the printing with developing dyes Process for the printing with developing dyes

1975-10-17

1978-06-13

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 27, 8 44, 8 46, 8 542, 8 68, 8 70, C09B 2700, D06P 102

Patent

active

040946371

ABSTRACT:
Cellulosic material is printed with a paste containing the alkaline solution of a coupler, the dispersion of a diazotable aromatic amine, a nitrite and a thickener and the dyestuff is developed on the fiber by acidic steaming or by adding solutions of organic acids and steaming or drying.

REFERENCES:
patent: 2349561 (1944-05-01), Reynolds et al.
patent: 3000298 (1961-09-01), Bryant et al.
patent: 3288552 (1966-11-01), Streck
patent: 3436168 (1969-04-01), Streck
patent: 3494716 (1970-02-01), Hoffman
patent: 3516780 (1970-06-01), Kirst et al.
patent: 3787179 (1974-01-01), Lowenfeld
patent: 3920386 (1975-11-01), Beyer et al.
patent: 3961886 (1976-06-01), Hertel et al.

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