Abstract: A highly purified monomer-dye unit is disclosed. A method for producing a highly purified monomer-dye unit is also disclosed. A hydrophilic monomer is reacted with a halotriazine or vinyl sulfone dye in the presence of a base under conditions that yield highly pure monomer-dye units.

Abstract: Disclosed herein is an ink-jet printing process comprising at least the steps of:(a) successively applying, as ink droplets, at least two inks of different colors to a cloth to form a color-mixed portion;(b) subjecting the cloth to a heat treatment to fix dyes contained in the inks to the cloth; and(c) washing the cloth to remove unfixed dyes from the cloth,wherein the inks comprise water, an organic solvent and individual reactive dyes different from each other in reaction rate, and the volume of a droplet of the ink containing a slower-reacting dye is made smaller upon the application of the inks.

Abstract: The invention provides a process for fixing dyes on organic material, which comprises fixing dyes containing at least one polymerizable double bond or at least one polymerizable ring system, in the presence of at least one colorless binder which contains at least one polymerizable double bond, and at least one photosensitizer, as well as further optional auxiliaries, by subjecting said material to irradiation with UV light. The invention also provides a dyeing formulation which enables the dyeing to be fixed by the inventive process.

Abstract: The invention relates to a process for dyeing cellulose fibres such as cotton fibres, comprising successively the steps of (a) bleaching the cellulose fibres with an alkaline bath containing aqueous hydrogen peroxide; (b) neutralizing the residual hydrogen peroxide with a reducing agent; and (c) dyeing the cellulose fibres with a reactive dye sensitive to said reducing agent, wherein, after stage (b) and at the latest at the beginning stage (c), any residual agent is neutralized by a quantity of an alkali or alkaline-earth metal halogenite sufficient to neutralize it, whereby it is possible not to perform any intermediate rinsing between stages (a) and (c).

Abstract: The invention is a process for dyeing polyamide substrates comprising anionic and cationic fibers in multi-colored patterns. Cross-staining or dyeing of the cationic fibers by the anionic-dyeable nylon colorant is avoided. The anionic dyeable fiber portion is dyed with a fiber-reactive vinyl sulfone dye having one or more sulfonic acid substituents and one or more vinyl sulfone groups with the proviso that the sum of the number of sulfonic acid and vinyl sulfone substituents is at least three. The dyeing process is conducted at a pH of about 2 to about 4. Optionally the cationic portion of the substrate may be dyed with a basic dye in admixture with the vinyl sulfone dye.

Abstract: Trichromatic dyeings with acid dyes which exhaust from strongly acidic liquors have weaknesses with respect to wet fastness, which are due to insufficiently fast components (blue, red). It has been found, according to the invention, that by replacing the insufficiently fast acid dyes by reactive dyes of the vinylsulfonyl type and retaining the method of dyeing under strongly acidic conditions the wet fastness level of the exhaust dyeings can be improved while the levelness obtained remains as good.

Abstract: New amine salts of reactive dyestuffs as well as the use of these amine salts for the dyeing and printing of organic material are disclosed. The new dyestuffs contain an amine salt of an acid, salt-forming, water-solubilizing group, and are of the formulaD--[X].sub.n-1 SO.sub.2 -CH.sub.2 CH.sub.2 -Z.sup..crclbar. [Y-H] H.sup..sym. (I)wherein D represents the radical of an organic dyestuff selected from an azo, formazan, anthraquinone, phthalocyanine, nitro and triphenylmethane dyestuff containing no salt-forming, water-solubilizing groups, X represents the bridge member --CH.sub.2 --, --CH.sub.2 CH.sub.2 -- or ##STR1## wherein R represents hydrogen, alkyl having 1 to 5 carbon atoms, or cycloalkyl, Z.sup..crclbar. represents --OSO.sub.3.sup..crclbar., --SSO.sub.3.sup..crclbar. or --OPO.sub.3 H.sup..crclbar., Y represents the radical of certain primary or secondary amines Y-H, which amines are capable of salt formation and n represents the number 1 or 2.

Abstract: A process for inhibiting fiber yellowing occuring at the time of the alkaline treatment, which comprises treating fibrous material with an alkaline substance, a functional compound capable of reacting under alkaline conditions, and aminoacid or the derivative thereof, and thereafter subjecting said treated fibrous material to the heat treatment at a temperature of 100.degree. C or higher.

Abstract: The method of treating a textile fabric comprising cellulosic fibers to produce a modified fabric intermediate from which permanently shaped wearing apparel having an improved dry crease recovery can be made, comprising the steps of: (1) impregnating the material with a cellulose cross-linking reagent selected from the groups consisting of: (a) reaction products of formaldehyde with carboxamides wherein said reaction products contain 2 or 3 N-methylol groups and methyl ethers thereof; (b) compounds having the following generic formula:R.sub.1 OCH.sub.2 CH.sub.2 SO.sub.2 (QSO.sub.2).sub.n CH.sub.2 CH.sub.2 OR.sub.2where R.sub.1 and R.sub.