Patent GB-1175234-A (GB)
Title: Laundry Retexturing Agents
IPC: D06M13/372
Filed: 1967-08-01
Abstract: 1,175,234. Antimicrobial/retexturing composition. HENKEL & CIE, G.m.b.H. 1 Aug., 1967 [1 Aug., 1966; 23 May, 1967], No. 35260/67. Heading ASE. [Also in Divisions B1 C2 and D1] Washed laundry, e.g. cotton terry towels, tea towels, underwear or bed linen, is retextured by treating it with rinsing water to which has been added in a concentration of 0.5-2g. per litre at least one glycamide of the formula in which R 1  is an alkyl radical with 10-22 carbon atoms and which may be interrupted by an ether oxygen atom in the vicinity of the nitrogen atom (i.e. between carbon atoms 2 and 3 or 3 and 4 numbered from the nitrogen atom may be an ether oxygen atom), R 2  is an alkyl radical with 7-21 carbon atoms and n is 3 or 4, the sum of the carbon atoms contained in R 1  and R 2  being at least 23 and an antimicrobial substance. The glycamide may be added to the rinse water in the form of a solid or liquid composition. Solid compositions may comprise the glycamide in admixture a solid extending or diluting agent, e.g. an alkali metal salt of sulphuric acid or ortho-or pyro-phosphoric acid, a non surface active salt of a carboxylic or hydroxycarboxylic acid having 1-10 carbon atoms, an amide sulphonic acid salt, an amide phosphonic acid salt, urea, acetamide or a polyethylene glycol, the solid compositions being prepared by spraying a solution or dispersion of the glycamide on to the finely divided carrier substance which is in solid form, by a atomising an aqueous solution or suspension of the glycamide containing the carrier or by atomising a solution or dispersion of the glycamide in molten urea or polyethylene glycol. The liquid compositions may comprise solutions of the glycamide in a water soluble organic solvent, e.g. a mono- or polyhydric alcohol containing 1-4 carbon atoms, an ether alcohol or aketone, which may be dispersed in water. Aqueous glycamide dispersions may contain dispersing and emulsifying agents, e.g. alkyl benzene sulphonates, fatty alcohol sulphates, fatty alcohol glycol ether sulphates with 1-5 ethylene glycol ether radicals in the molecule, fatty acid monoglycerides or polyethylene glycol ethers of fatty alcohols or alkyl phenols with 5-20 ethylene glycol ether radicals in the molecule, and emulsion stabilisers, e.g. salts of ether carboxylic acids or ether sulphonic acids of cellulose, cellulose sulphates, polyacrylic acid or polymethacrylic acid salts and water soluble polyacrylamides and polyethylene glycols. The rinsing water may also contain optical brighteners having the formula: in which X is H or SO 3 H and R is or having the formula: acidifying and anti-incrustration agents, e.g. amidosulphonic acid, urea compounds of ortho phosphoric acid, citric acid, polyphosphates of alkali metals and salts of nitrilotriacetic acid, ethylene diamine tetraacetic acid, N-hydroxyethyl ethylene diamine triacetic acid and di-, tri- or tetra phosphonic acids, dyestuffs, perfumes and ethoxylated dimethyl polysiloxane. The antimicrobial substances may be formaldehyde, halogenated phenols, nitrated mono- or polyalcohols, quaternary ammonium compounds which contain linked to the nitrogen atom an aliphatic hydrocarbon radical with 8-18 carbon atoms and at least one aromatic residue or residue containing a double bond which is linked on the nitrogen atom by an aliphatic carbon atom, tertiary amines obtainable from primary or secondary amines containing up to four basic nitrogen atoms and an aliphatic or alkyl aromatic residue with 8-18 aliphatic carbon atoms by condensation with phenols and lower aliphatic aldehydes, aminocarboxylic acids, polyaminocarboxylic acids or betaines.