Woolscouring method and composition
AssigneeCroda International PLC
InventorsMahzad Goodwin, Peter Michael Murphy, Simon Paul Flavin
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Abstract
The present invention relates to a method of washing animal fibers comprising contacting the animal fibers with a surfactant composition comprising a mixture of alcohol ethoxylate surfactants and optionally at least one propoxylated surfactant.
Claims16
A method of cleaning animal fibers comprising contacting the animal fibers with a surfactant composition comprising a mixture of alcohol ethoxylate surfactants, wherein the composition further comprises at least one propoxylated surfactant represented by the following formula:
- R3—Y-[(PO)m1/(EO)p1]-H
- wherein:
- R3 is a hydrocarbon group having an average chain length in the range of from C6 to C16;
- PO represents C3H6O, and EO represents C2H4O;
- m1 is in the range of from 0.5 to 6;
- p1 is in the range of from 0 to 9;
- wherein (p1−m1) is in the range of from 0.5 to 6;
- and
- Y is —O—, —COO—, —CONH— or —NHCO—.
A method of cleaning animal fibers comprising contacting the animal fibers with a surfactant composition comprising a mixture of alcohol ethoxylate surfactants, wherein the composition further comprises at least one propoxylated surfactant represented by the following formula:
- R3—Y-[(PO)m1/(EO)p1]-H
- wherein:
- R3 is a hydrocarbon group having an average chain length in the range of from C6 to C16;
- PO represents C3H6O, and EO represents C2H4O;
- m1 is in the range of from 0.5 to 6;
- p1 is in the range of from 0 to 9;
- and
- Y is —O—, —COO—, —CONH— or —NHCO—;
- wherein the surfactant composition further comprises a second propoxylated surfactant having the following formula:
- R4—Y-[(PO)m2/(EO)p2]-H
- wherein:
- R4 is a hydrocarbon group having an average chain length in the range of from C6 to C16;
- PO represents C3H6O, and EO represents C2H4O;
- p2 is in the range of from 0.25 to 3.5;
- m2 is in the range of from 2 to 10;
- and
- Y is —O—, —COO—, —CONH— or —NHCO—.
Dependencies are inferred from the claim text.