Title: Process for dyeing skins and furs

Abstract: A new process for dyeing furs and skins below 70.degree.C is provided, which process is carried out with aqueous dyebaths containing a dyestuff, up to 15 g per liter of the whole preparation of an organic non-ionizable oxo compound with only limited solubility in water and optionally an emulsifier for these compounds. According to this process furs and skins can be dyed in deep and level shades with a broad scope of dyestuffs without any pretreatments for improving the dye-receptivity of the substrates.

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Inventors: Schwank, Max (Basel, CH)

Application Number: 487700
Filing Date: 1974-07-11
Publication_date: 1976-08-03
Assignee: Ciba-Geigy AG (Basel, CH)
Primary Class(es): 8/404 8/584, 8/607, 8/681, 8/685, 8/907, 8/916
Other Classes:
US Patent Ref:

3352755	Nov, 1967	Lerner	167/88.
3726636	Apr, 1973	Baderscher et al.	8/83.

Other Refs: 872,506856,381

Jul, 1961	UK
Dec, 1960	UK

Primary Examiner: Marquis, Melvyn I.
Assistant Examiner:
Attorney: Kolodny; Joseph G., Roberts; Edward McC., Almaula; Prabodh I.