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US 7,621,965 B2Granted
Dry cleaning textiles with a composition containing one or more alcohol polyoxyalkylene derivatives and/or one or more benzoate or phenyl alkylcarboxylate esters
AssigneeCroda International PLC
InventorHarold R Motson
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Abstract
Textiles are cleaned by first treating soiled areas of the textile with at least one pre-spotter material which is an alcohol polyoxyalkylene derivative or a benzoate ester. The textiles are subsequently dry cleaned in a medium based on liquid C02, typically also including a cleaning additive, particularly a multi-ester. The textile may also be treated with a fabric conditioner, particularly a fatty alcohol or fatty acid branched polyalkoxylate which may be included in the dry cleaning medium or in a subsequent rinse cycle.
Claims29
A method of dry cleaning, comprising:
- i) contacting a textile material with a pre-spotter material, comprising:
- (a) one or more alcohol polyoxyalkylene derivatives of formula (I):
- R1—(OA)m—OR2 (I)
- where
- R1 is a C1 to C6 alkyl group;
- R2 is H or a C1 to C4 alkyl group;
- OA is a random copolymeric chain of oxyethylene and oxypropylene groups;
- and
- m is from 2 to 50;
- and/or
- (b) one or more benzoate esters or phenyl alkylcarboxylate esters;
- and
- ii) subsequently dry cleaning the textiles in a medium based on liquid CO2.
10 more elements
Dependencies are inferred from the claim text.