Prevention of fabric hand harshening on printing of dyeing cellulosic textiles
AssigneeHoechst Aktiengesellschaft
InventorsKurt Hohmann, Peter Mischke, Gerd Pelster, Horst-Roland Mach
Life of this patent
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Abstract
Cellulosic textiles are printed or dyed with multiple hook reactive dyes without fabric hand harshening on using a reactive dye preparation containing 0.5 to 10% by weight of a surfactant and 0 to 10% by weight of an antifoaming agent.
Claims13
A method for preventing fabric hand harshening on printing or pad dyeing cellulosic textile materials, by performing the printing or dyeing of the textile material with a dye preparation which consists essentially of 5 to 40 % by weight of one or more reactive dyes having at least two reactive groups, 0.5 to 10% by weight of a surfactant which is a C.sub.8 -C.sub.22 fatty alcohol, a saturated or unsaturated C.sub.8 -C.sub.22 monoalcohol polyglycol ether having a total 2 to 50ethylene oxide units, a lauryl alcohol polyglycol phosphate, castor oil polyglycol ester having 10 to 40 ethylene units, propylene oxide units or a combination thereof, a condensation product of a saturated or unsaturated C.sub.8 -C.sub.22 -fatty acid having 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a condensation product of a C.sub.8 -C.sub.22 fatty amine or C.sub.8 -C.sub.22 fatty acid amide having in each case 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a condensation product of naphthalenesulphonic acid with formaldehyde, polyglycols having a molecular weight of 200 to 2,000, polyglycol ethers having a molecular weight of from 200 to 1,000, a mixture of polyglycols having a molecular weight of 200 to 2,000 and polyglycol ethers having a molecular weight of from 200 to 1,000, a condensation product of a C.sub.4 -C.sub.12 -alkyl-phenol or of phenylphenol having in each case 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a block polymer of 10 to 50% by weight of ethylene oxide units and 90 to 50% by weight of propylene oxide units having a molecular weight of 250 to 5,000, a C.sub.12 -C.sub.18 -alkyl-N-methylgluconamide or a mixture of the compounds mentioned, and 0.1% to 10% by weight of an antifoaming agent or antifoaming agent mixture which is an acetylenediol, a C.sub.1 -C.sub.4 -alkyl phosphate, a perfluorinated C.sub.6 -C.sub.10 -alkylphosphinic acid, a perfluorinated C.sub.6 -C.sub.10 -alkylphosphonic acid, a silicone or a mixture of the antifoaming agents mentioned.
A reactive dye preparation consisting essentially of 5 to 40% by weight of one or more reactive dyes having at least two reactive groups, 0.5 to 10% by weight of a surfactant which is a C.sub.8 -C.sub.22 fatty alcohol, a saturated or unsaturated C.sub.8 -C.sub.22 monoalcohol polyglycol ether having in total 2 to 50 ethylene oxide units, a lauryl alcohol polyglycol phosphate, castor oil polyglycol ester having 10 to 40 ethylene units, propylene oxide units or a combination thereof, a condensation product of a saturated or unsaturated C.sub.8 -C.sub.22 -fatty acid having 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a condensation product of a C.sub.8 -C.sub.22 fatty amine or C.sub.8 -C.sub.22 fatty acid amide having in each case 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a condensation product of naphthalenesulphonic acid with formaldehyde, polyglycols having a molecular weight of 200 to 2,000, polyglycol ethers having a molecular weight of from 200 to 1,000, a mixture of polyglycols having a molecular weight of 200 to 2,000 and polyglycol ethers having a molecular weight of from 200 to 1,000, a condensation product of a C.sub.4 -C.sub.12 -alkyl-phenol or of phenylphenol having in each case 2 to 40 ethylene oxide units, propylene oxide units or a combination thereof, a block polymer of 10 to 50% by weight of ethylene oxide units and 90 to 50% by weight of propylene oxide units having a molecular weight of 250 to 5,000, a C.sub.12 -C.sub.18 -alkyl-N-methylgluconamide or a mixture of the compounds mentioned, and 0.05 to 10% by weight of an antifoaming agent which is 2,4,7,9-tetramethyl-5-decyne-4,7-diol,tri-n-butyl-phosphate, triisobutyl phosphate, ethylhexanol or octanol or a mixture thereof.
Dependencies are inferred from the claim text.