Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: Devices configured to permit the application of color to hair from a solid or semi-solid hair coloring composition and methods relating to use of such devices are disclosed. The device includes a support, and a solid or semi-solid hair coloring composition fixedly disposed on the support. The solid or semi-solid hair coloring composition includes a soap gelling agent such that the hair coloring composition retains its shape, and can be provided as a block having a predefined shape. These devices are not attendant with dripping as has been associated with prior art hair color applicators.

Abstract: A modified regenerated cellulose fiber which enables dyeing in different colors by combining the modified regenerated cellulose fiber and other fibers by means of mixed spinning or union knitting/weaving. The modified regenerated cellulose fiber can be obtained by adding 0.5–3.0% by weight of a grounder of naphthol dye to the regenerated cellulose fiber in a matrix of the regenerated cellulose fiber, the grounder being selected from the group having a medium to high level of affinity to the regenerated cellulose fiber. A variety of dyed fiber products can be obtained by treating yarn or knitted/woven fabric made of the above modified regenerated cellulose fiber with a developer of naphthol dye.

Abstract: The present invention simplifies the complicated dyeing process using a naphthol dye, and provides a modified regenerated cellulose fiber which enables dyeing in different colors by combining the modified regenerated cellulose fiber and other fibers by means of mixed spinning or union knitting/weaving. A modified regenerated cellulose fiber can be obtained by containing 0.5-3.0% by weight of a grounder of naphthol dye to the regenerated cellulose fiber in a matrix consisting of the regenerated cellulose fiber, wherein the grounder is selected from the group having a medium to high level of affinity to the regenerated cellulose fiber. A variety of dyed fiber products can be obtained by treating yarn or knitted/woven fabric made of the above modified regenerated cellulose fiber with a developer of naphthol dye.

Abstract: Process for producing dyed, tubular food wrappings from non-woven fabric coated with regenerated cellulose, characterized in that an alkaline dye liquor containing at least one dye which has been previously converted into an alkali-soluble form by chemical reduction and which can be converted into its insoluble form by oxidation is admixed to the viscose solution used for the production of the layer of regenerated cellulose, a tubular non-woven fabric is coated with the mixture of viscose solution and dye liquor, the viscose is coagulated and regenerated to form cellulose hydrate gel and the dye distributed in the viscose is reconverted into its insoluble form by oxidation; tubular food wrappings produced by this process and their use as synthetic casings for sausages.

Abstract: The present disclosure relates to novel dyed cellulosic moulded bodies, in particular to fibers or films, containing a heavy-metal-containing colorant, which, according to the thermal stability test described herein, reduces the rise temperature of a cellulose solution in a tertiary amine oxide by 10° C. at most, in particular by 5° C. at most. The moulded bodies according to the disclosure may be produced in accordance with the amine-oxide process.

Abstract: Aminated cellulosic synthetic fibers are produced by adding an amine-substituted cellulose derivative to a viscose or an alkali cellulose and spinning fibers by the viscose spinning process, or by adding said cellulose derivative to a cellulose solution and spinning fibers from said solution.

Abstract: Process for preparing colored regenerated-cellulose fiber, which comprises adding a formulation comprising a cationized polysaccharide and an anionic dye to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber by a viscose spinning process or from the cellulose solution.

Abstract: Dyed cellulosic regenerated elongate members such as fibers are produced by dyeing the regenerated members with a cationic direct dye after formation but before first drying. A method of producing the dyed elongate members comprises forming a dope containing cellulose or a cellulose compound in solution in a solvent, extruding the dope through at least one orifice into a bath containing water to form an elongate extrudate from which solvent is dissolved and/or the cellulose compound is converted to cellulose so as to form the elongate member, dyeing the formed but never dried elongate member with a cationic direct dye and optionally also with an anionic direct dye and then drying for the first time the dyed elongate member.

Abstract: There is disclosed a colored high-tenacity fiber of ultra-high molecular weight polyethylene which is obtainable by spinning a solution of ultra-high molecular weight polyethylene and a dye for coloration to form solvent-containing filaments and drawing the solvent-containing filaments. The colored high-tenacity fiber of ultra-high molecular weight polyethylene has a tensile strength of at least 28 g/d and a tensile modulus of at least 700 g/d. The dye is substantially soluble in the solvent at the melting point of solvent-containing filaments which are obtained by spinning a solution of ultra-high molecular weight polyethylene and the dye is substantially uniformly dispersed in the core portion of the fiber. Also disclosed is a process for producing a colored high-tenacity fiber of ultra-high molecular weight polyethylene.

Abstract: A process is disclosed for providing a solvent-spun cellulose fibre with a reduced fibrillation tendency. The fibre is treated with a chemical reagent, preferably substantially colourless, having 2 to 6 functional groups reactive with cellulose, suitably dissolved in an aqueous solution.

Abstract: Modified rayon is produced by adding a modifier to a cellulose solution and spinning fibers from the solution, or by adding a modifier to an alkali cellulose solution or material, xanthating and spinning fibers by the viscose spinning process, wherein the modifier is an amine of the formula (1a), (1b), (1c), (1d) or (1e) ##STR1## The modified rayon produced in this way can be dyed with reactive dyes without addition of electrolyte salt or alkali and have significantly more affinity than conventional viscose fibers.

Abstract: Process for dyeing regenerated cellulose fibers, which comprises adding an amine-substituted cellulose derivative to a viscose dope or to an alkali cellulose and spinning fibers by the viscose spinning process, or adding said cellulose derivative to a cellulose solution and spinning fibers from the solution, processing fibers into a woven or knitted fabric and dyeing the fabric with a direct or acid dye in the absence of additional electrolyte salt.

Abstract: Described is a method for producing a colored silk filament by having a colorant solution absorbed through the spiracles of each silkworm larva and then allowing the larva to secrete the colored silk filament through the spinneret thereof. In this method, a solution of a polymer-linked dyestuff is employed as the colorant solution.

Abstract: Modified cellulose fiber is produced by adding a modifier to a cellulose solution and spinning fibers from the solution, or by adding a modifier to a viscose solution and spinning fibers by the viscose spinning process, said modifier being a polymeric amine compound having pendant primary, secondary or tertiary amino groups and having a molecular mass of more than 1000.

Abstract: A diamine salt and a surfactant are imbibed into never-dried aromatic polyamide fibers which may be printed or overprinted with acid dyes, after drying.

Abstract: There is provided by this invention a process for preparing poly(paraphenylene terephthalamide) fibers dyeable with cationic dyes. The process comprises soaking poly(paraphenylene terephthalamide) fibers in sulfuric acid, washing the fibers and dipping the acid soaked fibers or never-dried PPD-T fibers in an aqueous solution of a dye promoting species. The fibers can then be dried and subsequently dyed.

Abstract: Concentrated solutions of cationic dyes are prepared by treating the cationic dyes, which contain as the counterions the anions customarily present during their preparation, with alkali metal salts of monocarboxylic acids and with or without complexing agents in an aqueous glycol ether medium, and separating off the organic phase, which contains the dyes in the form of their monocarboxylic acid salts.

Abstract: Dye salts of a mono- or polycationic dye where the anion conforms to a general formula (1) or (2)[Me (XCN).sub.4 ].sup.2(-) (1)[Me (SCN).sub.6 ].sup.n(-) (2)in whichMe in the formula (1) is the divalent zinc cation, the divalent iron cation, the divalent cobalt cation, the divalent tin cation or the divalent copper cation, andMe in the formula (2) stands for the divalent iron cation, the divalent nickel cation or the trivalent iron cation,X stands for an oxygen or sulfur atom andn depending on the valency of the corresponding metal cation, denotes the number 4 or 3.The novel dye salts can be obtained for example from aqueous solution or suspension by reacting the corresponding cationic dye which has a customary anion with a metal cation Me donor compound and an alkali metal thiocyanate or cyanate, alkaline earth metal thiocyanate or cyanate or ammonium thiocyanate or cyanate. They are used in particular in the spin-dyeing of acid-modified polyacrylonitrile and copolymers thereof.

Abstract: The invention relates to a process for continuous dyeing of filaments based on atactic polyvinyl chloride in the course of their production.The undrawn filaments are impregnated with a composition containing at least one plastosoluble dye while they have a density of between 1.3 and 1.4 g/cm.sup.3, are fixed continuously in the presence of steam under pressure at a temperature of between 100.degree. and 120.degree. C. for 2 to 20 seconds, are drawn in a known manner, are then fixed under tension in the presence of steam under pressure at a temperature of between 100.degree. and 130.degree. C. for 1 to 20 seconds, and are then oiled and shrunk in a known manner.Such a process permits quick dyeing, on an industrial scale, with good color fastness.

Abstract: The present invention relates to a process for continuous dyeing of filaments based on atactic polyvinyl chloride in the course of production.It comprises, in succession, the phases of drawing, impregnation of the filaments by padding while, at the time of the impregnation, the filaments have a density of between 1.3 and 1.4 g/cm.sup.3 (the filament roving having a water content of 10 to 30% by weight), of stabilization under tension in the presence of steam under pressure at a temperature between 100.degree. and 130.degree. C. for 2 to 20 seconds, and then oiling and shrinking in a known manner.Dyeing carried out in this manner is quick and makes it possible to produce colors having good fastness.

Abstract: An aromatic polyamide fiber containing a large amount of a surfactant, sufficient to enable it to be dyed a deep shade. The high surfactant level enables the fiber to be stabilized, at low temperatures, against progressive laundry shrinkage.

Abstract: Improvement of a process for spin-dyeing acid-modified polymers or copolymers of acrylonitrile in which cationic quaternary dyestuffs are added to the spinning mass and spun according to the wet-spinning procedure. The improvement is characterized by using dyestuffs characterized by a migration factor M of 20 or less than 20, by a combination index K of less than 2.5 and a cation weight of more than 310. Migration factor M and combination index K are known values in the dyestuff field or can be determined. The dyestuff to be used according to the invention can belong to the most different classes of dyestuffs; they fix rapidly on the polymer, and thus they do not color, or color only to a minor extent, the coagulation, stretching and washing baths although they are soluble in water and aqueous solutions of these baths.

Abstract: The invention is concerned with a method of producing in-line dyed fibers, in a gel state, characterized in that it essentially consists of extruding the spinning dope in a coagulum bath, stretching the resulting filaments, scrubbing said filaments to remove residual solvent, passing the resulting filament tow through a dyeing bath at an overall rate in excess of 4 cm.sup.3 bath per second per square centimeter of tow surface area. The overall rate, being preferably in the 4 to 10 cm.sup.3 /sec per cm.sup.2 range, is achieved by means of crossflows to the forward advance direction of said tow, and alternately directed to and from said tow, the tow residence time in the dyeing bath being no longer than 5 seconds. The tow is then subjected to a dye fixing heat treatment, and is then scrubbed, finished, and dried. The method is particularly suitable for use with substantially acrylic and modacrylic fibers.

Abstract: Fiber material composed of acid-modified homopolymers or copolymers of acrylonitrile (PAC fibers) which has been obtained by a wet spinning process, has not been dried and is still in a swollen condition (gel form), can be dyed advantageously and in fast colors by means of soluble dyes, the molecule of which contains several groups, namely more than one quaternary grouping and/or a strongly basic grouping carrying no charge, which exert a basic action towards the acid groups of the fiber substance. The chromophore of this colorant can belong to the category of monoazo or diazo dyes, methine, azamethine or diazamethine dyes or naphthalactam dyes.In accordance with the invention, after substantially removing the non-aqueous spinning solvent by washing, the spun material, as a moist gel, is dyed continuously or discontinuously from an aqueous dyebath; the fibers can be stretched before the dye is applied, during the dyeing process itself or immediately afterwards.

Abstract: Improvement of a process for spin-dyeing acid-modified polymers or copolymers of acrylonitrile in which cationic quaternary dyestuffs are added to the spinning mass and spun according to the wet-spinning procedure. The improvement is characterized by using dyestuffs characterized by a migration factor M of 20 or less than 20, by a combination index K of less than 2.5 and a cation weight of more than 310. Migration factor M and combination index K are known values in the dyestuff field or can be determined. The dyestuff to be used according to the invention can belong to the most different classes of dyestuffs; they fix rapidly on the polymer, and thus they do not color, or color only to a minor extent, the coagulation, stretching and washing baths although they are soluble in water and aqueous solutions of these baths.

Abstract: A process for the continuous dyeing of fiber material of one or more acid-modified polymers or copolymers of acrylonitrile in the gel state, said fiber material having been produced by wet spinning from a spinning solution containing one or more organic solvents, which process comprises dyeing the fiber material with a solution of a carbinol base or anhydro base of a carboxyl- or sulfo-free N-arylated triarylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diarylindolylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diaryloxazine dyestuff, a carboxyl- or sulfo-free N-arylated diarylxanthene dyestuff, or a carboxyl- or sulfo-free N-arylated diarylazine dyestuff in a dye bath containing water and the organic spinning solvent or solvents.

Abstract: The invention relates to a process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR1## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R.sub.1 is alkyl, aralkyl or aryl. The yellowish-red transparent fibres obtained have excellent fastness properties.

Abstract: There is disclosed a process for the coloration of wet spun acrylic and modacrylic fibres in the gel form which comprises using a cationic dye, or its dye bases, which are substantially insoluble in water but soluble or partly soluble in organic solvents. There are also disclosed acrylic fibres so colored.