Printing process assisted by alkanols of 5 to 8 carbon atoms, urea and mineral oil
AssigneeBayer Aktiengesellschaft
InventorsGunther Boehmke, Richard Schwaebel
Life of this patent
Estimating the term…
Abstract
Process for printing cellulosic fibre materials with reactive dyestuffs and/or direct dyestuffs wherein are used emulsion printing pastes which contain, in addition to the dyestuffs and the alkalis required for fixing the reactive dyestuffs A. an alkali salt and/or ammonium salt of a C.sub.8 -C.sub.22 -carboxylic acid, B. an aliphatic C.sub.5 -C.sub.18 -alcohol, C. a largely straight-chain, liquid paraffin hydrocarbon, D. urea and optionally E. an alkali salt and/or ammonium salt of a sulphonic acid.
Claims6
In the process for printing cellulosic fibre materials with reactive dyestuffs and/or direct dyestuffs using emulsion thickeners, the improvement comprising using emulsion printing pastes which contain, in addition to the dyestuffs and the alkali required for fixing the reactive dyes a. 0.4 to 2% by weight of an alkali salt of a saturated or unsaturated fatty acid having 8 to 22 carbon atoms, ammonium salt of a saturated or unsaturated fatty acid having 8 to 22 carbon atoms or a mixture of said salts;
- b. 1.5 to 4% by weight of an aliphatic alcohol having 5 to 18 carbon atoms;
- c. 2 to 4.5% by weight of a largely straight-chain, liquid paraffin hydrocarbon;
- d. 5 to 18% by weight urea;
- and
- e. 0 to 0.5% by weight of a salt comprising the alkali, ammonium, monoethanolamine, diethanolamine, triethanolamine, propanolamine or cyclohexylamine salt of a sulfonic acid wherein said sulfonic acid contains a substantially unbranched alkyl chain and is selected for the group consisting of n-alkanesulfonic acids, n-alkylbenzenesulfonic acids, .alpha.-sulfofatty acid esters and acyl taurides.
Printing paste for printing cellulosic fibre materials with reactive dyestuffs and/or direct dyestuffs which contain, in addition to the dyestuffs and the alkali required for fixing the reactive dyestuffs
- a. 0.4 to 2% by weight of an alkali salt of a saturated or unsaturated fatty acid having 8 to 22 carbon atoms, ammonium salt of a saturated or unsaturated fatty acid having 8 to 22 carbon atoms or a mixture of said salts;
- b. 1.5 to 4% by weight of an aliphatic alcohol having 5 to 18 carbon atoms;
- c. 1 to 4.5% by weight of a largely straight-chain, liquid paraffin hydrocarbon;
- d. 5 to 18% by weight urea;
- and
- e. 0 to 0.5% by weight of a salt comprising the alkali, ammonium, monoethanolamine, diethanolamine, triethanolamine, propanolamine or cyclohexylamine salt of a sulfonic acid wherein said sulfonic acid contains a substantially unbranched alkyl chain and is selected for the group consisting of n-alkanesulfonic acids, n-alkylbenzenesulfonic acids, .alpha.-sulfofatty acid esters and acyl taurides.
Dependencies are inferred from the claim text.