Articles and methods for treating fabrics

Claim 2

An article of manufacture adapted for use to provide fabric care benefits in an automatic laundry dryer comprising: (a) a fabric conditioning composition comprising one or more of an alkyl amine-anionic surfactant ion-pair complex of the formula: wherein R 1 is C 1 to C 24 alkyl or alkenyl, R 2 is C 1 to C 24 alkyl or alkenyl, and R 3 is H or C 1 -C 24 alkyl or alkenyl, and A is an anionic surfactant selected from the group consisting of alkyl sulfonates, aryl sulfonates, alkylaryl sulfonates and paraffin sulfonates; and (b) a dispensing means which provides for release of an effective amount of said composition to fabrics in the dryer at automatic dryer operating temperatures.

Claim 3

- 2. An article according to Claim 1 wherein said dispensing means comprises a flexible substrate in sheet configuration having the fabric conditioning composition releasably affixed thereto to provide a weight ratio of fabric conditioning composition to dry substrate ranging from about 10:1 to about 0.25:1.

Claim 4

An article according to :Claim 2 wherein A is selected from the group consisting of linear C 1 to C 20 alkyl sulfonates, linear C 1 to C 20 alkylaryl sulfonates, aryl sulfonates, C 12 to C 18 paraffin sulfonates and C 12 to C 18 olefin sulfonates.

Claim 5

An article according to Claim 3 wherein the weight ratio of fabric conditioning composition:dry substrate ranges from about 5:1 to about 1:1.

Claim 6

An article according to Claim 4 wherein R 1 is C 16 to C 24 hydrocarbon and R 2 is C 16 to C 24 hydrocarbon.

Claim 7

An article according to Claim 5 wherein R 1 is C 16 to C 18 alkyl, R 2 is C 16 to C 18 alkyl and R 3 is H or CH 3 .

Claim 8

An article according to Claim 6 wherein A is selected from the group consisting of linear C 1 to C 20 alkyl sulfonates.

Claim 9

An article according to Claim 6 wherein the amine component of said ion-pair complex is selected from the group consisting of hydrogenated ditallow amine, hydrogenated ditallow methylamine, unhydrogenated ditallow amine, unhydrogenated ditallow methylamine, dipalmityl dipalmityl methylamine, distearyl amine, distearyl methylamine, diarachidyl amine, diarachidyl methylamine, palmityl stearyl amine, palmityl stearyl methylamine, palmityl arachidyl amine, palmityl arachidyl methylamine, stearyl arachidyl amine, and stearyl arachidyl methylamine.

Claim 10

An article according to Claim 8 wherein the ion-pair complex is selected from the group consisting of hydrogenated ditallow amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, hydrogenated ditallow methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, unhydrogenated ditallow amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, unhydrogenated ditallow methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, dipalmityl amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, dipalmityl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, distearyt amine complexed with a linear Ci-C 2 o alkyl benzene sulfonate, - distearyl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, diarachidyl amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, diarachidyl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, palmityl stearyl amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, palmityl stearyl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, palmityl arachidyl amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, palmityl arachidyl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, stearyl arachidyl amine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, stearyl arachidyl methylamine complexed with a linear C 1 -C 20 alkyl benzene sulfonate, hydrogenated ditallow amine complexed with a C 1 -C 20 alkyl sulfonate, hydrogenated ditallow methylamine complexed with a C 1 -C 20 alkyl sulfonate, unhydrogenated ditallow amine complexed with a C 1 -C 20 alkyl sulfonate, unhydrogenated ditallow methylamine complexed with a C 1 -C 20 alkyl sulfonate, dipalmityl amine complexed with a C 1 -C 20 alkyl sulfonate, dipalmityl methylamine complexed with a C 1 -C 20 alkyl sulfonate, distearyl amine complexed with a C 1 -C 20 alkyl sulfonate, distearyl methylamine complexed with a C 1 -C 20 alkyl sulfonate. diarachidyl amine complexed with a C 1 -C 20 alkyl sulfonate, diarachidyl methylamine complexed with a C 1 -C 20 alkyl sulfonate. palmityl stearyl amine complexed with a C 1 -C 20 alkyl sulfonate, palmityl stearyl methylamine complexed with a C 1 -C 20 alkyl sulfonate, palmityl arachidyl amine complexed with a C 1 -C 20 alkyl sulfonate, palmityl arachidyl methylamine complexed with a C 1 -C 20 alkyl sulfonate, stearyl arachidyl amine complexed with a C 1 -C 20 alkyl sulfonate, stearyl arachidyl methylamine complexed with a C 1 -C 20 alkyl sulfonate, hydrogenated ditallow amine complexed with a C 12 -C 18 paraffin sulfonate, hydrogenated ditallow methylamine complexed with a C 12 -C 18 paraffin sulfonate, unhydrogenated ditallow amine complexed with a C 12 -C 18 paraffin sulfonate, unhydrogenated ditallow methylamine complexed with a C 12 -C 18 paraffin sulfonate, dipalmityl amine complexed with a C 12 -C 18 paraffin sulfonate, dipalmityl methylamine complexed with a C 12 -C 18 paraffin sulfonate, distearyl amine complexed with a C 12 -C 18 paraffin sulfonate, distearyl methylamine complexed with a C 12 -C 18 paraffin sulfonate, diarachidyl amine complexed with a C 12 -C 18 paraffin sulfonate, diarachidyl methylamine complexed wtth-a C 12 -C 18 paraffin sulfonate, palmityl stearyl amine complexed with a C 12 -C 18 paraffin sulfonate, palmityl stearyl methylamine complexed with a C 12 -C 18 paraffin sulfonate, palmityl arachidyl amine complexed with a C 12 -C 18 paraffin sulfonate, palmityl arachidyl methylamine complexed with a Ci 2 -C, 8 paraffin sulfonate, stearyl arachidyl amine complexed with a C 12 -C 18 paraffin sulfonate, stearyl arachidyl methylamine complexed with a Ciz-Ci 8 paraffin sulfonate, ditallow amine (hydrogenated or unhydrogenated) complexed with a C 12 -C 18 olefin sulfonate, ditallow methylamine (hydrogenated or unhydrogenated) complexed with a C 12 -C 18 olefin sulfonate, dipalmityl amine complexed with a C 12 -C 18 olefin sulfonate, dipalmityl methylamine complexed with a C 12 -C 18 olefin sulfonate, distearyl amine complexed with a C 12 -C 18 olefin sulfonate, distearyl methylamine complexed with a C 12 -C 18 olefin sulfonate, diarachidyl amine complexed with a C 12 -C 18 olefin sulfonate, diarachidyl methylamine complexed with a C 12 -C 18 olefin sulfonate, palmityl stearyl amine complexed with a C 12 -C 18 olefin sulfonate, palmityl stearyl methylamine complexed with a C 12 -C 18 olefin sulfonate, palmityl arachidyl amine complexed with a C 12 -C 18 olefin sulfonate, palmityl arachidyl methylamine complexed with a C 12 -C 18 olefin sulfonate, stearyl arachidyl amine complexed with a C 12 -C 18 olefin sulfonate, and stearyl arachidyl methylamine complexed with a Ci 2 -C, 8 olefin sulfonate, and mixtures thereof.

Claim 11

An article according to claim 9 additionally comprising from about 1% to about 70% of a polymeric soil release agent by weight of the fabric conditioning composition.

Claim 12

An article according to Claim 10 wherein said polymeric soil release agent comprises from about 10% to about 70% by weight of the fabric conditioning composition.

Claim 13

An article according to Claim 11 wherein the soil release agent component is selected from the group consisting of hydroxy ether cellulosic polymers, copolymeric blocks of ethylene terephthalate polyethylene oxide, polypropylene oxide terephthalate, cationic guar gums, and mixtures thereof.

Claim 14

An article according to Claim 12 additionally comprising from about 5% to about 90% of an optional fabric softening agent by weight of the fabric conditioning composition, selected from the group consisting of cationic fabric softeners and nonionic fabric softeners, and mixtures thereof.

Claim 15

An article according to Claim 13 wherein said fabric softening agent comprises a mixture of cationic fabric softener and nonionic fabric softeners in a weight ratio of from about 1:10 to about 10:1.

Claim 16

An article according to Claim 14 wherein said cationic fabric softener is selected from the group consisting of a quaternary ammonium salt, a carboxylic acid of a tertiary alkyl amine, and mixtures thereof and wherein said nonionic fabric softener is selected from the group consisiting of a fatty alkyl sorbitan ester, a fatty alcohol, a fatty amine, and mixtures thereof.

Claim 17

An article according to Claim 15 wherein said polymeric soil release agent is a hydroxether cellulosic polymer.

Claim 18

An article according to Claim 16 wherein said polymeric soil release agent is selected from the group consisting of methylcellulose. hydroxypropyl methylcellulose, and hydroxybutyl methylcellulose. and mixtures thereof.

Claim 19

An article according to Claim 12 wherein said fabric care agent is solid at room temperature. has a softening phase transition of at least about 30°C and becomes a flowable liquid below 100°C.

Claim 20

An article according to Claim 1 wherein said dispensing means comprising a sponge material releasably enclosing the fabric conditioning composition wherein the weight ratio of fabric conditioning agent to dry substrate ranges from about 10:1 to about 0.5:1.

Claim 23

A method according to Claim 20 wherein A is selected from the group consisting of linear C 1 -C 20 alkyl sulfonates, linear C 1 -C 20 alkylaryl sulfonates, aryl sulfonates, C 12 -C 18 paraffin sulfonates and C 12 to C 18 olefin sulfonates.

Claim 24

A method according to Claim 21 wherein R 1 is C 16 to C 18 alkyl, R 2 is C 16 to C 18 alkyl and R 3 is H or CH 3 .

Claim 25

A method according to Claim 22 wherein the amine component of said ion-pair complex is selected from the group consisting of hydrogenated ditallow amine, hydrogenated ditallow methylamine, unhydrogenated ditallow amine, unhydrogenated ditallow methylamine, dipalmityl amine, dipalmityl methylamine, distearyl amine, distearyl methylamine, diarachidyl amine, diarachidyl methylamine, palmityl stearyl amine, palmityl stearyl methylamine, palmityl arachidyl amine, palmityl arachidyl methylamine, stearyl arachidyl amine, and stearyl arachidyl methylamine.