Laundry detergent compositions comprising cationic surfactants and modified polyamine soil dispersents

A laundry detergent composition comprising:

• a) at least 0.01% by weight, of a cationic surfactant having the formula:
• ##STR49## wherein R is C.sub.12 -C.sub.14 alkyl and X is a water soluble cation;
• b) at least 0.01% by weight, of a nonionic surfactant;
• c) at least 0.01% 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:
• ##STR50## having a modified polyamine formula V.sub.(n+1) W.sub.m Y.sub.n Z, said polyamine backbone prior to modification has a molecular weight greater than about 200 daltons, wherein
• i) V units are terminal units having the formula:
• ##STR51## ii) W units are backbone units having the formula:
• ##STR52## iii) Y units are branching units having the formula:
• ##STR53## iv) Z units are terminal units having the formula:
• ##STR54## 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.3 M, --(R.sup.1 O).sub.x, 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, --(C.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;
• d) optionally from about 1% to about 30% by weight, of a bleaching system, said bleaching system comprises:
• i) from about 1% to about 30% by weight, a peroxygen bleach, said peroxygen bleach is selected from the group consisting of hydrogen peroxide, sodium perborate, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate, sodium peroxide, magnesium monoperoxyphthalate hexahydrate, magnesium metachloro perbenzoic acid, 4-nonylamino-4-oxoperoxybutyric acid, diperoxydodecanedioic acid, and mixtures thereof;
• and
• ii) from about 0.1% to about 30% by weight, of a bleach activator, said bleach activators are selected from the group consisting of oxtanamido-caproyl)oxybenzenesulfonate, (6-nonanamido-caproyl)oxybenzenesulfonate, (6-decanamido-caproyl)oxybenzenesulfonate, benzoyl caprolactam, octanoyl caprolactam, 3,5,5-trimethylhexanoyl caprolactam, nonanoyl caprolactam, decanoyl caprolactam, undecenoyl caprolactam, benzoyl valerolactam, octanoyl valerolactam, decanoyl valerolactam, undecenoyl valerolactam, nonanoyl valerolactam, 3,5,5-trimethylhexanoyl valerolactam and mixtures thereof, and
• e) the balance carrier and adjunct ingredients.

A method for cleaning fabric comprising, the step of contacting fabric with an aqueous solution of a composition comprising:

• a) at least 0.01% by weight, of a cationic surfactant having the formula:
• ##STR55## wherein R is C.sub.12 -C.sub.14 alkyl and X is a water soluble cation;
• b) at least 0.01% 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:
• ##STR56## having a modified polyamine formula V.sub.(n+1) W.sub.m Y.sub.n Z, said polyamine backbone prior to modification has a molecular weight greater than about 200 daltons, wherein
• i) V units are terminal units having the formula:
• ##STR57## ii) W units are backbone units having the formula:
• ##STR58## iii) Y units are branching units having the formula:
• ##STR59## iv) Z units are terminal units having the formula:
• ##STR60## wherein backbone linking R units are C.sub.2 -C.sub.12 alklyene;
• 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.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;
• in 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
• c) the balance carrier and adjunct ingredients.