Laundry detergent compositions and methods for providing soil release to cotton fabric

A laundry detergent composition comprising:

• a) from about 0.01% to about 95% by weight, of a detersive surfactant selected from the group consisting of anionic, nonionic, cationic, zwitterionic, and ampholytic surfactants, and mixtures thereof;
• b) from about 0.01 to about 10% by weight, of a soil release polymer having effective soil release on non-cotton fabric;
• c) optionally from about 0.05 to about 30% by weight, of a bleach;
• d) from about 0.01 to about 10% by weight, a water-soluble or dispersible, modified polyamine cotton soil release agent comprising a polyamine backbone prior to modification via quaternization, substitution, or oxidation corresponding to the formula:
• ##STR68## having a modified polyamine formula V.sub.(n+1) W.sub.m Y.sub.n Z or a polyamine backbone prior to modification via quaternization, substitution, or oxidation corresponding to the formula:
• ##STR69## having a modified polyamine formula V.sub.(n-k+1) W.sub.m Y.sub.n Y'.sub.k Z, wherein k is less than or equal to n, said polyamine backbone prior to has a molecular weight greater than about 200 daltons, wherein
• i) V units are terminal units having the formula:
• ##STR70## ii) W units are backbone units having the formula:
• ##STR71## iii) Y units are branching units having the formula:
• ##STR72## iv) Z units are terminal units having the formula:
• ##STR73## wherein backbone linking R units are C.sub.2 -C.sub.12 alkylene;
• R.sup.1 is C.sub.2 -C.sub.6 alkylene, and mixtures thereof;
• E units are selected from the group consisting of hydrogen, C.sub.1 -C.sub.22 alkyl, --(CH.sub.2).sub.p CO.sub.2 M, --(CH.sub.2).sub.q SO.sub.3 M, --CH(CH.sub.2 CO.sub.2 M)CO.sub.2 M, --(CH.sub.2).sub.p PO.sub..sub.3 M, --(R.sup.1 O).sub.x B, and mixtures thereof;
• provided that when any E unit of a nitrogen is a hydrogen, said nitrogen is not also an N-oxide;
• B is hydrogen, C.sub.1 -C.sub.6 alkyl, --(CH.sub.2).sub.q SO.sub.3 M, --(CH.sub.2).sub.p CO.sub.2 M, --(CH.sub.2).sub.q (CHSO.sub.3 M)CH.sub.2 SO.sub.3 M, --(CH.sub.2).sub.q --(CHSO.sub.2 M)CH.sub.2 SO.sub.3 M, --(CH.sub.2).sub.p PO.sub.3 M, --PO.sub.3 M, and mixtures thereof, provided when B is an ionizable unit selected from the group consisting of --(CH.sub.2).sub.q SO.sub.3 M, --(CH.sub.2).sub.p CO.sub.2 M, --(CH.sub.2).sub.q (CHSO.sub.3 M)--CH.sub.2 SO.sub.3 M, --(CH.sub.2).sub.q (CHSO.sub.2 M)CH.sub.2 SO.sub.3 M, --(CH.sub.2).sub.p PO.sub.3 M, --PO.sub.3 M, and mixtures thereof, at least one backbone nitrogen is quaternized;
• M is hydrogen or a water soluble cation in sufficient amount to satisfy charge balance;
• X is a water soluble anion;
• m has the value from 4 to about 400;
• n has the value from 0 to about 200;
• p has the value from 1 to 6, q has the value from 0 to 6;
• x has the value from 11 to 100;
• and
• e) the balance carrier and adjunct ingredients.