Bleedfast phthalocyanine dyes for paper

Details Bleedfast phthalocyanine dyes for paper Bleedfast phthalocyanine dyes for paper

1976-08-10

1977-07-19

Randolph, John D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 7, 162162, 2603145, D06P 114, C09B 4704

Patent

active

040365859

ABSTRACT:
The novel copper phthalocyanine-based compound ##STR1## WHERE N IS AN AVERAGE NUMBER OF 3 TO 4, A IS 0 TO 3 BUT LESS THAN N, AND CPC is copper phthalocyanine, and its acid solutions are blue dyes particularly for paper and have excellent bleedfastness. The compound is prepared by reacting copper phthalocyanine sulfonyl chloride with the cyanoamino compounds formed from the reaction between acrylonitrile and ethylenediamine.

REFERENCES:
patent: 2863875 (1958-12-01), Bienert et al.

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