Method of cleaning textiles

Claim 1

In the method of chemically cleaning and preventing greying of a textile in an organic solvent which comprises contacting a textile with an organic solvent containing cleaning intensifiers and a small quantity of water, said organic solvent being selected from the group consisting of halogenated methane and ethane solvents and aliphatic hydrocarbon solvents, separating said textile from said solvent and recovering said cleaned textile, the improvement which comprises bringing said organic solvent during the cleaning operation into substantially continuous contact with an adsorption material having an insolubly fixed impregnation of a polycondensation product containing polyalkylene glycol units, said polycondensation product containing polyalkylene glycol units being selected from the group consisting of (I) a reaction product of a component (a) selected from the group consisting of water-soluble melamine-formaldehyde condensates and water-soluble urea-glyoxal-formaldehyde condensates with a component (b) selected from the group consisting of polyalkylene oxides and products of addition of alkylene oxides to a compound selected from the group consisting of phenols, fatty alcohols, fatty acids, fatty acid amides, alkylamines, and alkylolamines, (II) a reaction product of a component (a) selected from the group consisting of polyalkylene polyamines, aqueous ammonia and mixtures thereof with a component (b) consisting of alkylene oxide derivatives having 3 to 70 alkylene oxide units and more than one halogenhydrin in the molecule, (III) a reaction product of a component (a) selected from the group consisting of a water-soluble compound having reactive amino groups containing polyalkylene oxide units and water-soluble polyalkylene polyamines containing polyalkylene oxide units reacted with a component (b) selected from the group consisting of epichlorohydrin and compounds having more than one substituent selected from the group consisting of epoxide, halogenhydrin, and the mixtures thereof in the molecule, and (IV) a water-soluble polyvalent amine obtained by condensation of a component (a) selected from the group consisting of polychlorohydrin ethers of polyalkylene oxides and polychlorohydrin ethers of compounds having polyalkylene oxide reacted with a component (b) selected from the group consisting of ammonia and mixtures of ammonia and polyvalent amines, further reacted with a component (c) selected from the group consisting of epichlorohydrin ethers of polyols, dichlorohydrin ethers of polyols, bischlorohydrin ethers of polyols, and the mixtures thereof, said contacting with said adsorption material consisting of passing said organic solvent through a layer of said adsorption material in particulate form.