Liquid detergent softening and brightening composition
AssigneeS. C. Johnson & Son, Inc.
InventorJohn A. Sramek
Life of this patent
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Abstract
A stable, liquid detergent softening and brightening composition or concentrate contains a water-soluble non-ionic surfactant system; a quaternary ammonium softener having an equivalent weight from about 400 to 2000; at least an equivalent weight to said softener of a 4,4'-bis[4-disubstituted amino-6-(sulfosubstituted anilino)-s-triazin-2-ylamino]-2,2'-stilbene disulfonic acid optical brightener; a hydrotrope to stabilize the composition and an aqueous solvent medium therefor. The composition is storage stable and provides enhanced cling-free softening and brightening without loss of cleansing properties or yellowing of fabrics.
Claims5
An aqueous, stable, liquid detergent composition having enhanced softening and brightening properties comprising:
- (a) a water soluble non-ionic surfactant system having a relatively high cloud point in amounts from about 10 to 50% by weight,
- (b) a quaternary ammonium fabric softener having an equivalent weight from about 400 to 2000 in amounts from about 0.75 to 6% by weight of the formula:
- ##STR8## wherein Z is a water soluble, salt-forming anion, R.sub.1 is a C.sub.10 -C.sub.20 alkyl radical, R.sub.2 is R' or a C.sub.10 -C.sub.20 alkyl radical, X and Y are the same or different and are methyl, ethyl, 2-hydroxyethyl, 2-hydroxy propyl, --R"--C--C--O--H, or ##STR9## wherein R" is a polymer having from 1 to 10 ethoxy, isoproxy or mixed ethoxy-isopropoxy units, and R' is polyethoxy ethanol having from 1 to 10 ethoxy units only when:
- (i) X and Y are both methyl, or
- (ii) X is methyl and Y is polyethoxyethanol having from 1 to 10 ethoxy units,
- (iii) X is ethyl and Y is polyethoxy ethanol having from to 10 ethoxy units;
- (c) an optical brightener of the formula:
- ##STR10## wherein A and A.sup.1 are the same or different and are hydrogen, methyl, ethyl, isopropyl, 2-hydroxyethyl, propanamido or taken together are morpholino or anilino;
- B is H, m-SO.sub.3 H or p-SO.sub.3 H wherein the total number of --SO.sub.3 H groups is from 3 to 5, and the salts thereof having water soluble anions, wherein the equivalent weight ratio of (b) to (c) is from about 1/2:1 to 1:1, wherein the weights are based on the total weight of the aqueous composition;
- (d) a hydrotrope is sufficient amounts to maintain a stable composition;
- and
- (e) an aqueous solvent medium wherein said composition has a pH of from 6 to 10.
Dependencies are inferred from the claim text.