Process for preventing the redeposition of soil during dry cleaning, and composition for carrying out this process
AssigneeChloe Chimie
InventorsMichel Peignier, Claude Renault
Life of this patent
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Abstract
Process for preventing soil redeposition onto textile articles made of natural, synthetic or artificial fibers or a blend thereof, during dry cleaning operations using stabilized perchloroethylene. It is characterized in that a sufficient amount of at least one C.sub.4 to C.sub.6 alcohol, chosen from amongst those having a boiling point of between 95.degree. and 140.degree. C. and those forming, with the perchloroethylene, an azeotrope having a boiling point of between 80.degree. and 130.degree. C., is incorporated into this perchloroethylene.
Claims9
Process for reducing soil redeposition onto textile articles made of natural, synthetic or artificial fibers or blends thereof, during dry cleaning operations using stabilized perchloroethylene, wherein a sufficient amount of at least one primary or secondary alcohol of the formula ROH, in which R represents an alkyl or alkenyl radical containing from 4 to 6 carbon atoms, is incorporated as anti-redeposition adjuvant into this perchloroethylene, said alcohol having a boiling point of between 95.degree. and 140.degree. and forming, with the perchloroethylene, an azeotrope having a boiling point of between 80.degree. and 130.degree. C.
Anti-redeposition dry cleaning composition consisting essentially of stabilized perchloroethylene containing up to 6% by weight of water, relative to the textiles to be treated, and customary additives in an amount of 1 to 10 g additive per liter of the said composition, and at least 0.5% by weight of at least one primary or secondary alcohol of the formula ROH, in which R represents an alkyl or alkenyl radical containing from 4 to 6 carbon atoms, said alcohol having a boiling point of between 95.degree. and 140.degree. and forming, with the perchloroethylene, an azeotrope having a boiling point of between 80.degree. and 130.degree. C.
Dependencies are inferred from the claim text.