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.
Abstract:
An improved process of dyeing highly moisture absorbent cellulose containing textile materials having a ratio of filling to warp of between 77 to 23 and 50 to 50 in which such textile materials are woven from yarn having a range of twist multiplier of from about 2.25 to about 5.00 is provided in which water is applied to a first surface of the textile material to effectively moisten such surface. a liquid dye admixture is applied to a second surface, the second surface being opposite the first surface, in an amount sufficient to cover the second surface. The resulting textile material is then maintained in a holding zone for a period of time effective to allow the dyestuff constituent present in the liquid dye admixture to migrate through the textile material. Once the desired dyestuff migration has occurred, the dyed textile material is heated to a temperature of from about 300.degree. F to about 400.degree. F to fix the dyestuff and dry the dyed textile material. When desired, the dyed highly moisture absorbent cellulose containing textile materials can be cut into towels of predetermined sizes and over-edged to prevent fraying of the edges of the resulting towels.
Abstract:
The invention is concerned with printing fabrics containing (a) acrylic fibers and/or modacrylic fibers having acidic dyesites but free of basic dyesites and (b) cellulosic fibers with a printing paste containing (A) an acid dye containing a single sulfonic acid group and having an inorganicity/organicity ratio below 4 for dyeing the acrylic or modacrylic fibers and (B) a direct or reactive dye for dyeing the cellulosic fibers.
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:
A composition for the elimination of cellulosic dye cross staining when dyeing cellulosic and synthetic blended fabrics in a dye bath. The composition includes a first component including polyvinylpyrrolidone polymer having a mwt. of between about 15,000 to 40,000 and the balance water. In the preferred embodiment, the composition includes a second component including dyestuff including dyes and polyvinylpyrrolidone polymer. Dyeing textile articles having at least two different types of fibers selected from the group consisting of cellulosic and synthetic fibers using the present invention produce a dyed article in which the cellulosic fibers are dyed and the synthetic fibers have a Class Value of greater than about 3 when measured according to the AATCC Gray Scale for Color Change.
Abstract:
Process for dyeing or printing fibre 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:
Described herein is a process for the coloration of short pile fabrics, the process enabling the manufacture of various colors of pile fabric from a single intermediate fabric, the intermediate fabric having a precolored, undyeable, transparent face fiber.