Dye mixtures comprising dyes of formula (I) and (II) process for the production thereof and use of said mixtures.

##STR00001##

Dye mixtures comprising dyes of formula (I) and (II) process for the production thereof and use of said mixtures.

##STR00001##

Mixtures of fiber reactive dyes and their use of for the dyeing of hydroxyl- and carboxamide-containing material in blue and navy shades are described.

Mixtures of fiber reactive dyes and their use of for the dyeing of hydroxyl- and carboxamide-containing material in blue and navy shades are described.

A method for applying a treatment agent to a substrate, wherein the treatment agent is bound to a solid polymeric particle at a first pH, and wherein the substrate is contacted with the solid polymeric treatment particles under conditions such that the treatment agent is released from the solid polymeric treatment particles.

A whitening composition for fabric, in particular, unbleached cellulosic fiber-containing fabric. The composition includes a blue dye, a violet dye; and, optionally, a thickening agent; wherein the composition is free of bleaching agents and optical brighteners. A method of whitening a fabric using whitening compositions is also disclosed.

A whitening composition for fabric, in particular, unbleached cellulosic fiber-containing fabric. The composition includes a blue dye, a violet dye; and, optionally, a thickening agent; wherein the composition is free of bleaching agents and optical brighteners. A method of whitening a fabric using whitening compositions is also disclosed.

The present invention provides a post-fabrication modification approach for the fabrication of colored and chromic materials and sensors using plasma surface modification to covalently bind the coloring agent to the substrate, thus avoiding leaching of the dye. Advantageously, in said methods, said coloring agent is a dye or pigment linked to a radical sensitive functional group, such as an alkenyl or alkynyl functional group, and is applied to the substrate prior to the gas plasma treatment. The methods envisaged herein are generic in nature, which allow the covalent immobilization of various dyes on different materials. The covalently coated materials after plasma surface modification, particularly the covalently coated chromic materials and sensors, can be used in many different applications, such as protective textile and wound dressing applications.

The present invention provides a post-fabrication modification approach for the fabrication of colored and chromic materials and sensors using plasma surface modification to covalently bind the coloring agent to the substrate, thus avoiding leaching of the dye. Advantageously, in said methods, said coloring agent is a dye or pigment linked to a radical sensitive functional group, such as an alkenyl or alkynyl functional group, and is applied to the substrate prior to the gas plasma treatment. The methods envisaged herein are generic in nature, which allow the covalent immobilization of various dyes on different materials. The covalently coated materials after plasma surface modification, particularly the covalently coated chromic materials and sensors, can be used in many different applications, such as protective textile and wound dressing applications.

A reactive dye of formula

##STR00001## wherein Z.sub.1 and Z.sub.2 are each independently of the other vinyl or a radical CH.sub.2CH.sub.2Y and Y is a group removable under alkaline conditions, n is the number 1, 2, 3 or 4, m is the number 2, 3 or 4, q is the number 0 or 1, and the substituents (SO.sub.3H).sub.n, SO.sub.2Z.sub.1 and NHCO(CH.sub.2).sub.mSO.sub.2Z.sub.2 are bound to the benzene rings A, B and/or C, said benzene rings A, B and/or C are optionally further substituted by at least one substituent selected from the group C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and halogen, is suitable for dyeing and printing cellulosic or amide-group-containing fibre materials.