Stable concentrated liquid preparation of a paper dye of the dis

Details Stable concentrated liquid preparation of a paper dye of the dis Stable concentrated liquid preparation of a paper dye of the dis

1976-06-30

1978-02-21

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 7, 8 93, 260175, C09B 6700, C09B 3102

Patent

active

040749665

ABSTRACT:
There is described a stable concentrated liquid preparation of a paper dye of the disazo class, which preparation contains 20 to 40 per cent by weight of the dye of the formula ##STR1## optionally in the form of an alkali salt, especially of the sodium salt, dissolved in 10 to 30 per cent by weight of water and 40 to 60 per cent by weight of a mono-, di-, tri- or tetraalkylene glycol and the use of this preparation for the dyeing and printing of paper, semi-cardboard and cardboard.

REFERENCES:
patent: 3621008 (1971-11-01), Ross
patent: 3989452 (1976-11-01), Hugelshofer

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