Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1974-02-08
1976-05-25
Marquis, Melvyn I.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
264109, 25230122, C09B 6700
Patent
active
039589293
ABSTRACT:
Pressing of uniform shape and uniform weight of disperse dyestuffs and optical brightening agents with a solubility in water less than 0.5% at 20.degree.C which are suitable for an automate metering step and which disintegrate in aqueous dye baths to give dispersions are manufactured by compressing the dyestuff or brightening agent, an anionic dispersing agent and a solid water-soluble mould release agent which gives a neutral to weakly alkaline reaction in water.
REFERENCES:
patent: 3639168 (1972-02-01), Monti et al.
patent: 3645665 (1972-02-01), Etters
Hornle Reinhold
Kuth Robert
Molls Hans-Heinz
Rupp Roland
Bayer Aktiengesellschaft
Marquis Melvyn I.
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