Dye composition and method of dyeing

Claim 2

AN AQUEOUS DYE COMPOSITION HAVING A PH OF FROM ABOUT 1.0 TO ABOUT 9.0 COMPRISING IN COMBINATION (A) ABOUT 0.01-10% OF A WATER INSOLUBLE PIGMENT, (B) ABOUT 0.01-10% OF A CATIONIC STARCH AND (C) ABOUT 0.01-5% OF A NONIONIC, ANIONIC OR ZWITTERIONIC DISPERSANT.

Claim 3

The dye composition of claim 1 wherein the water-insoluble pigment is an organic pigment.

Claim 4

The dye composition of claim 1 wherein the water-insoluble pigment has a particle size of from about 0.01 to about 40 microns.

Claim 5

The dye composition of claim 1 wherein the cationic starch has a degree of substitution of from about 0.005 to about 0.5.

Claim 6

An aqueous resinous dye composition having a pH of from about 1.0 to about 9.0 comprising a. a water insoluble pigment in an amount of about 0.01-10%, b. a cationic starch in an amount of about 0.01-10%, c. a nonionic, anionic or zwitterionic dispersant in an amount of about 0.01-5%, and d. a polymer which is self-cross-linking at low temperatures in an amount of about 0.1-10%, said polymer being obtained from a monomer mixture containing about 0.1-3.0% of an N-alkylol or N-alkoxyalkyl amide of the formula:

Claim 7

An aqueous resinous dye composition having a pH of from about 1.0 to about 9.0 comprising a. a water insoluble pigment in an amount of about 0.01-10%, b. a cationic starch in an amount of about 0.01-10%, c. a nonionic, anionic or zwitterionic dispersant in an amount of about 0.01-5%, and d. a polymer which is self-cross-linking at low temperatures in an amount of about 0.1-10%, said polymer being obtained from a monomer mixture containing about 0.1-3.0% of an N-alkylol or N-alkoxyalkyl amide of the formula:

Claim 8

The resinous dye composition of claim 5 wherein the cationic starch conforms to the formula:

Claim 9

The resinous dye composition of claim 5 wherein the cationic starch is prepared by the reaction of starch with a cationic reagent which is in turn prepared by the reaction of trimethyl amine with epichlorohydrin.

Claim 10

The resinous dye composition of claim 7 wherein the starch is a modified starch.

Claim 11

The resinous dye composition of claim 7 wherein the starch is a thick boiling starch.

Claim 12

The resinous dye composition of claim 5 wherein the polymer is a copolymer of an acrylate ester.

Claim 13

The resinous dye composition of claim 10 wherein the acrylate ester is an alkyl acrylate.

Claim 14

A dye concentrate having a pH of from about 1.0 to about 7.0 comprising an aqueous dispersion of (a) from about 0.01 to about 10% of a water insoluble pigment, (b) from about 0.01 to about 10% of a cationic starch, and (c) from about 0.01 to about 5% of a nonionic, anionic or zwitterionic dispersant.

Claim 15

A dye concentrate having a pH of from about 1.0 to about 7.0 comprising an aqueous dispersion of (a) from about 0.01 to about 10% of a water insoluble pigment, (b) from about 0.01 to about 10% of a cationic starch, and (c) from about 0.01 to about 5% of a nonionic, anionic or zwitterionic dispersant.

Claim 16

The dye concentrate of claim 12 wherein the cationic starch has a D.S. of from about 0.005 to about 0.5.

Claim 17

The dye composition of claim 12 wherein the cationic starch is prepared by the reaction of starch with a cationic reagent which in turn is prepared by the reaction of epichlorohydrin and trimethylamine.

Claim 18

The dye concentrate of claim 12 is characterized further in that it contains from about 0.1 to about 10% of a binder resin which is self-cross linking at low temperatures, said binder resin being a copolymer which is prepared from a monomer mixture containing from about 0.1 to about 3.0% of an N-alkylol or N-alkoxyalkyl amide of the formula:

Claim 19

A dye bath having a pH of from about 1.0 to about 9.0 comprising an aqueous dispersion of a. from about 0.00006 to about 0.1% of a water insoluble pigment, b. from about 0.00006 to about 0.1% of a cationic flocculent, c. from about 0.00006 to about 0.03% of a nonionic, anionic or zwitterionic dispersant and d. from about 0.00006 to about 0.25% of a binder resin, said binder resin being obtained from a monomer mixture containing about 0.1-3.0% of an N-alkyl or N-alkoxyalkyl amide of the formula:

Claim 20

A dye bath having a pH of from about 1.0 to about 9.0 comprising an aqueous dispersion of a. from about 0.00006 to about 0.1% of a water insoluble pigment, b. from about 0.00006 to about 0.1% of a cationic flocculent, c. from about 0.00006 to about 0.03% of a nonionic, anionic or zwitterionic dispersant and d. from about 0.00006 to about 0.25% of a binder resin, said binder resin being obtained from a monomer mixture containing about 0.1-3.0% of an N-alkyl or N-alkoxyalkyl amide of the formula:

Claim 21

The dye bath of claim 16 wherein the cationic flocculant is a cationic starch.