Dispersing and stabilizing agents for dyestuffs

Details Dispersing and stabilizing agents for dyestuffs Dispersing and stabilizing agents for dyestuffs

1973-10-26

1976-11-23

Levy, Donald

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8173, 8 89R, D06P 116, D06P 122, D06P 156

Patent

active

039934390

ABSTRACT:
Dispersions of pigments, disperse- or vat-dyestuffs, wherein the dispersing agent is formed either by co-condensation of a phenolic component, formaldehyde and an alkali metal sulfite or of a sulfonated phenolic component and formaldehyde. These dispersions are characterized in that the dispersing agent used shows an improved dispersing effect. Furthermore, they can also be used when being neutralized for the dispersing alkali sensitive dyestuffs and they show no tendency to soil the fabrics so that also clean shades may be dyed.

REFERENCES:
patent: 2090511 (1937-08-01), Crossley
patent: 2171963 (1939-09-01), Roch
patent: 2320678 (1943-06-01), Tassel
patent: 2922690 (1960-01-01), Mueller
patent: 3065039 (1962-11-01), Komarek
patent: 3178309 (1965-04-01), Harding
patent: 3781169 (1973-12-01), Deubel et al.

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