Method for cleaning hydrocarbon-containing greases and oils from fabric in laundry washing applications
OwnerTerry Crutcherinventor
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Abstract
This invention is directed to an improved method for removing hydrocarbon-containing greases and oils from fabrics. The invention consists of preparing a detergent composition and washing the fabric to be cleaned with the detergent composition. Broadly, the detergent composition consists of from about 10-50% by weight of a polyalkoxylated amine and from about 90-50% by weight of a water-soluble nonionic surfactant. The invention has desirable foamability characteristics.
Claims21
A method for removing hydrocarbon-containing greases and oils from fabric in a laundry washing process comprising the steps of:
- preparing a concentrated detergent composition consisting essentially of:
- 10-50% by weight of a stable, self-dispersing polyalkoxylated amine having the general structural formula ##STR5## wherein R.sup.1 is selected from an alkyl, aryl or alkylaryl group having between 6 and 22 carbon atoms;
- R.sup.2 is from 0 to 7 moles of alkoxylated units;
- n is 0 or 1,
- R.sup.3 and R.sup.4 are each selected from H and from about 2 to 7 moles of alkoxylated units such that R.sup.3 and R.sup.4 are not both H and R.sup.3 and R.sup.4 combined include from about 2 to 7 moles of alkoxylated units said composition including mixtures of the polyalkoxylated amines;
- and
- 90-50% by weight of a water-soluble nonionic surfactant selected from the group consisting of ethoxylated alcohols having about 6-8 moles of ethyleneoxy units per mole of alcohol, alkoxylated glycosides having about 10-16 carbon atoms and mixtures thereof;
- and
- washing the fabric to be cleaned with the detergent composition in a laundering process wherein the fabric is immersed in water, the water having a pH of about between 6.5-10 and a temperature of about,28.degree. C. to about 75.degree. C., and the fabric is agitated for a period of time to remove the hydrocarbon-containing greases and oils.
The method of claim 2 wherein the alkoxylated units are selected from the group consisting of ethyleneoxy, propyleneoxy, butyleneoxy and mixtures thereof.
A method for removing hydrocarbon-containing greases and oils from fabric in a laundry washing process comprising the steps of:
- preparing a concentrated detergent composition consisting essentially of:
- 40% by weight of a stable, self-dispersing polyalkoxylated amine having the general structural formula:
- ##STR6## wherein R.sup.5 is selected from an alkyl, aryl or alkylaryl group having between 6 and 22 carbon atoms,
- R.sup.6 is from 0 to 7 moles of alkoxylated units;
- n is 0 or 1;
- R.sup.7, R.sup.8 and R.sup.9 are each selected from H and from 1 to 15 moles of alkoxylated units such that R.sup.7, R.sup.8 and R.sup.9 are not each H, said composition including mixtures of the polyalkoxylated amines;
- and
- 60% by weight of a water-soluble nonionic surfactant selected from the group consisting of alkoxylated alcohols, alkoxylated glycosides and mixtures thereof;
- and
- washing the fabric to be cleaned with the detergent composition in a laundering process wherein the fabric is immersed in water, the water having a pH of about between 6.5-10 and a temperature of about 28.degree. C. to about 75.degree. C., and the fabric is agitated for a period of time to remove the hydrocarbon-containing greases and oils.
Dependencies are inferred from the claim text.