Abstract:
The present invention relates to a process for dyeing cellulose fibers or its union fibers which is effected according to an exhaustion dyeing method using a reactive dye containing at least one s-triazinyl group having a group of the formula: ##STR1## wherein M represents a hydrogen or an alkali metal, in an aqueous dyeing bath having a pH in the range of 4 to 10 and a dyeing temperature in the range of 110.degree. C. to below 140.degree. C.
Abstract:
An azo compound which in the free acid form is represented by the following formula: ##STR1## where R.sub.1 stands for methyl, ethyl, R.sub.2 stands for hydrogen, methyl, methoxy or ethoxy, R.sub.3 stands for hydrogen or methyl, and K stands for ##STR2## wherein the benzene nucleus A may be further substituted by methyl, amino, acetylamino or methoxy or: ##STR3## wherein these naphthalene neuclei may be further substituted by hydroxy, amino or acetylamino, also a process for preparing the azo compound and a dyeing method using said azo compound.
Abstract:
There is provided a process of dyeing yarn or cloth comprising fibres, comprising dyeing at least part of the fibres with at least two types of dyestuff that dye the same fibres substantially the same colour. One of the types of dyestuff chemically bonds with or is at least partially incorporated into the fibre structure and the other type of dyestuff does not chemically bond with or become at least partially incorporated into the fibre structure.
Abstract:
There is provided a process of dyeing yarn or cloth comprising fibres, comprising dyeing at least part of the fibres with at least two types of dyestuff that dye the same fibres substantially the same colour. One of the types of dyestuff chemically bonds with or is at least partially incorporated into the fibre structure and the other type of dyestuff does not chemically bond with or become at least partially incorporated into the fibre structure.
Abstract:
There is provided a process of dyeing yarn or cloth comprising fibres, comprising dyeing at least part of the fibres with at least two types of dyestuff that dye the same fibres substantially the same colour. One of the types of dyestuff chemically bonds with or is at least partially incorporated into the fibre structure and the other type of dyestuff does not chemically bond with or become at least partially incorporated into the fibre structure.
Abstract:
Process for dyeing or printing fiber materials containing hydroxyl groups, characterized in that at least one blue-dyeing dyestuff of the formula ##STR1## wherein the substituents have the meaning given in the description, is used together with at least one yellow-dyeing and/or at least one red-dyeing and/or at least one navy blue- or black-dyeing dyestuff.
Abstract:
Process for dyeing cellulose fibers or cellulose blend fibers, which comprises dyeing the fibers mentioned with water-soluble reactive dyes which contain in the dye molecule at least once the structural element of the formula ##STR1## in which Y denotes a hydroxyl, hydroxymethyl, alkoxy C.sub.1 -C.sub.4, aldehyde, carboxamide, monoalkyl C.sub.1 -C.sub.4 -carboxamide, dialkyl C.sub.1 -C.sub.4 -carboxamide, monophenyl carboxamide, cyano, alkyl C.sub.1 -C.sub.4 -oxycarbonyl or sulfo group or a halogen atom, in an aqueous medium within the pH range 4-11.