Patent GB-735861-A (GB)
Title: Crease-proofing agents for fibrous materials
IPC: D06M15/423
Filed: 1951-10-10
Abstract: A composition for crease-proofing textiles comprises a methylol compound, condensable in an acid medium to an aminoplast, or the initial materials therefor, and as a stabilizing agent a basic-reacting acyl derivative of a hydroxyalkylamine or polyamine the aliphatic carbon chains and the acyl residue of which contain not more than 6 carbon atoms and a hydrocarbon chain of 12 to 20 carbon atoms respectively, the stabilizing agent being either soluble or readily dispersible in water and containing at least one reactive hydrogen atom.  Stabilizers specified are the reaction products (esters or amides) of mono-, di- and tri-ethanolamines, hydroxyethylene diamine, triethylene tetramine, and biguanide with dodecanoic, stearic or oleic acid, and the reaction product of stearic and chloracetic acids with triethylene tetramine and the corresponding peralkylated products. Amino-plast-forming materials specified are dimethylol urea, tetramethylol acetylene diurea, methylol compounds of cyanamide, dicyanamide, melamine, thiourea, urethanes and mixtures thereof; mixtures of urea or thiourea and formaldehyde.  Other amines and colloids such as high molecular weight polyglycol ethers, polyvinylpyrrolidone, polyacrylic acid, dextrine and soluble starch, may be added.  In use an acid-reacting compound is added to an aqueous solution of the composition, e.g. acetic, formic, oxalic, oxadibutyric, adipic, phosphoric or thiocyanic acid, primary sodium phosphate or zinc chloride, though this is unncessary where the acyl derivatives of the amines are used in the form of their salts.  In examples cotton fabric is impregnated with aqueous solutions of dimethylol urea and (1) the condensation product of stearic acid and dihydroxyethyldiethylene triamine; (2) the formic acid monostearic acid ester of triethanolamine and triethanolamine.ALSO:A composition for crease-proofing textiles comprises a methylol compound, condensable in an acid medium to an aminoplast, or the initial materials therefor and as a stabilizing agent a basic-reacting acyl derivative of a hydroxyalkylamine or polyamine, the aliphatic carbon chains and acyl residues of which contain not more than 6 carbon atoms and a hydrocarbon chain of 12 to 20 carbon atoms respectively, the stabilizing agent being either soluble or readily dispersible in water and containing at least one reactive hydrogen atom.  Stabilizers specified are the reaction products (esters or amides) of mono-, di- and tri-ethanolamines, hydroxyethylene diamine, triethylene tetramine and biguanide with dodecenoic, stearic or oleic acid, and the reaction product of stearic and chloracetic acids with triethylene tetramine and the corresponding peralkylated products. Aminoplast-forming materials specified are dimethylol urea, tetramethylolacetylene diurea, methylol compounds of cyanamide, dicyanamide, melamine, thiourea, urethanes and mixtures thereof; mixtures of urea or thiourea and formaldehyde.  Other amines and colloids such as high molecular weight polyglycol ethers, polyvinylpyrrolidone, polyacrylic acid, dextrine and soluble starch, may be added.  In use an acid-reacting compound is added to an aqueous solution of the composition, e.g. acetic, formic, lactic, oxalic, oxadibutyric, adipic, phosphoric or thiocyanic acid, sodium phosphate or zinc chloride, though this is unnecessary where the acyl derivatives of the amines are used in the form of their salts.  In examples, the aqueous pastes comprise dimethylol urea and (1) the condensation product of stearic acid and dihydroxyethyldiethylene triamine, (2) the formic acid monostearic acid ester of triethanolamine and triethanolamine.