Dyeing preparations containing boric acid for preparing water-in

Details Dyeing preparations containing boric acid for preparing water-in Dyeing preparations containing boric acid for preparing water-in

1975-07-08

1977-07-12

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260141, 260142, 260146R, 260182, 260187, 260203, 260204, 8 46, 8 48, C07C11300, D06P 368, D06P 174

Patent

active

040351440

ABSTRACT:
New improved dyeing preparations (formulations) have been found for preparing water-soluble azo dyestuffs on fiber according to ice-color dyeing which contain a diazonium or tetrazonium compound of an aromatic mono- or diamine having a pKa-value of more than 2.5 as well as boric acid instead of the usual aluminum sulfate or chromium (III)-acetate. These new dyeing compositions have the same good properties as comparable known dyeing preparations but avoid the severe disadvantages of the known preparations in respect to requirements in industrial medicine and ecology.

REFERENCES:
patent: 1975409 (1934-10-01), Schnitzspahn et al.
patent: 3288552 (1966-11-01), Streck
patent: 3561914 (1971-02-01), Abel et al.
patent: 3711245 (1973-01-01), Neumer

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