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US 3,944,385 AGranted
Process for rendering wool non-felting
AssigneeCiba-Geigy Corporation
InventorsHans Hostettler, Heinz Abel, Rosemarie Topfl
Life of this patent
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Abstract
A process for rendering wool non-felting is provided, wherein the wool is treated with aqueous preparations containing a monopersulphine acid salt, an epoxide reaction product, a fatty amine ethylene oxide adduct and a softening agent. Very good non-felting effects without adverse influence on the handle are obtained.
Claims26
A process for rendering wool non-felting, wherein the wool is treated at 20.degree. to 100.degree.C with an aqueous preparation which contains
- 1. an alkali metal, ammonium or amine acid salt of monopersulphuric acid,
- 2. a reaction product of epoxides containing at least two epoxide groups per molecule, fatty amines and dicarboxylic acids, the equivalent ratios of epoxide groups to hydrogen bonded to amino nitrogen to carboxylic acid groups being 1:(0.1-1):(1-0.55),
- 3. an adduct of primary monoamines with 12 to 22 carbon atoms and 6 to 30 moles of ethylene oxide, which is esterified with an at least dibasic oxygen containing acid, and, optionally
- 4. an agent that imparts a soft handle, and is subsequently subjected to a reductive aftertreatment.
1 more element
Dependencies are inferred from the claim text.