Laundering process for whitening synthetic textiles
AssigneeBASF SE
InventorsRobert Hochberg, Oliver Becherer, Bernard Schultz, Goetz Scheffler, Rene Schlatter
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Abstract
The present invention relates to the use of a combination of a free fluorescent whitening agent and cationic polymer as a brightening agent for a synthetic single or blended textile, especially polyester textile, and to a corresponding brightening agent as well as a laundering process for brightening a synthetic, single or blended textile, which is characterized by a) preparing a composition by contacting a free fluorescent whitening agent with a cationic polymer, and b) treating said synthetic, single or blended textile with the composition prepared in step a).
Claims20
A laundering process for brightening a synthetic, single or blended textile, which is characterized by
- a) preparing a composition by contacting a free fluorescent whitening agent with a cationic polymer,
- and
- b) treating said synthetic, single or blended textile with the composition prepared in step a).
Brightening agent for a synthetic single or blended textile comprising a cationic polymer and a free fluorescent whitening agent and optionally water.
Brightening agent according to claim 14, wherein the cationic polymer comprises co-monomers for copolymerization with the cationic monomer units, wherein said co-momomers are of formula
- —(CR5R6—CR7R12),
- wherein
- R5, R6 and R7 are as defined in claim 15;
- R12 is independently selected from hydroxy, groups as defined for any of R5-R7, and groups of formula
- —(CH2)x—(CO)y—R13,
- wherein
- x is 0 to 6 and y is 0 or 1, and
- R13 is selected from hydrogen, hydroxyl, halogen, nitrilo, —OR3, —O(CH2)xN(R9)2, —OCO(CH2)xN(R9)2, —NHCO(CH2)xN(R9)2, —(CH2)xN(R9)2, carbocyclic, heterocyclic and —NHCHO,
- wherein R3 is hydrogen or a substituted or unsubstituted, branched, unbranched, interrupted or uninterrupted alkyl radical, or a substituted or unsubstituted carbocyclic or heterocyclic aryl radical,
- and R9 is as defined in claim 15.
Compound of formula (30)
- wherein
- R20 is hydrogen, or substituted or unsubstituted aryl, aralkyl or N-aryl-aralkyl;
- and
- R21 is substituted, unsubstituted, saturated or unsaturated, branched, unbranched, interrupted or uninterrupted C6-C40alkyl, C6-C40alkylene, C1-C6dialkyl, C1-C6dialkylene;
- substituted or unsubstituted aralkyl;
- and
- M is a cation.
Dependencies are inferred from the claim text.