Abstract: An aqueous liquid dye composition comprising 10 to 50% by weight of a fiber-reactive copper phthalocyanine dye represented by the following formula (I) in the form of a free acid, ##STR1## wherein Y is a group of --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a splittable group by the action of an alkali, and m and n are independently a number of 1 to 3, provided that they satisfy the following formula, 2<m+n.ltoreq.4, 0.1 to 20% by weight of at least one cyclic imide selected from .epsilon.-caprolactam and N-methylpyrrolidones and the balance of water, which is chemically and physically stable, even when stored for a long period of time at ambient temperature or stored at a relatively high temperature such as 50.degree. to 80.degree. C.

Abstract: Disazo compounds of the formula ##STR1## and salt thereof, D is the radical of a diazo component of the benzene or naphthalene series.K is the radical of a heterocyclic coupling component of the aminopyrazole-, pyridone- or barbituric acid-series, n is 1 to 4,R.sub.1 is hydrogen, C.sub.1-4 alkyl or substituted C.sub.1-4 alkyl,each of R.sub.2 and R.sub.3 is independently hydrogen, halo, C.sub.1-4 alkyl, substituted C.sub.1-4 alkyl, C.sub.1-4 alkoxy, substituted C.sub.1-4 alkoxy, --NHCO--Rhd 5, amino, substituted amino or a quaternary ammonium group, wherein R.sub.5 is C.sub.1-4 alkyl, substituted C.sub.1-4 alkyl, C.sub.1-4 alkoxy or amino,R.sub.4 is hydrogen, C.sub.1-4 alkyl, C.sub.

Abstract: The flame-resistant properties of aramid fibers are improved using a swelling agent to introduce a flame retardant into the fiber. The treated fiber has properties of strength approximating the untreated fiber, flame resistance greater than the untreated fiber and is conveniently dyed to an unlimited range of colors with high color yield. An aqueous dimethylsulfoxide solution is used as the swelling agent.

Abstract: A composition for dyeing material of synthetic aromatic polyamide fibers, including a cationic dye and a dye assistant, which is a mixture of N-substituted phthalimide and an emulsifier. The N-substituted phthalimide is preferably a 2:1 mole ratio of N-butyl phthalimide and isopropyl phthalimide. The emulsifier is preferably propylene oxide and ethylene oxide block polymer, and an anionic surfactant blend and an anionic/cationic surfactant blend.

Abstract: The transfer sheet or web is intended for the use in a heat transfer printing process of cotton, of cotton-polyester blend or of nitrogen containing textile fibers such as wool, silk or nylon.It comprises on its surface at least one organic impregnating agent which has a melting point between 60.degree. and 230.degree. C. and is no polymer, at least one water insoluble, non-subliming dyestuff, and the minimum amount of a binder. The dyestuff forms a pattern or image which is heat contact printed on said textile substrate without the use of carrier vapors or vacuum. The pattern to be heat transferred may also be prepared in an electrophotographic process using a new toner comprising particles of impregnating agent, binder and dyestuff.The pattern on the transfer support is transferred at a temperature between 160.degree. and 230.degree. C. during 30 to 60 seconds to said textile substrate. The printings obtained have very good light, rubbing and washing fastnesses; the handling is not impaired.

Abstract: Continuous dyeing of poly(m-phenyleneisophthalamide) fibers using a swelling agent to introduce a dye into the fiber. The dyed fiber has properties of strength and fire retardance approximating the original undyed fiber and is conveniently dyed to an unlimited range of colors with high color yield and relatively good lightfastness at a resonable cost. An aqueous dimethylsulfoxide solution is used as the swelling agent.

Abstract: A process of printing a predetermined pattern on a poly(m-phenyleneisophthalamide)-containing textile fabric comprises the successive steps of: (a) applying a print paste, composed of a highly polar solvent selected from the group consisting of dimethylsulfoxide, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, and mixtures thereof, the polar solvent adapted to swell the aramid fiber and introduce a dyestuff therein, at least one organic dyestuff that is soluble in the polar solvent, a print paste thickening agent compatible with both the polar solvent and the dyestuff and water in a predetermined pattern onto the surface of the aramid textile; and (b) drying and curing the thus printed fabric at an elevated temperature sufficient to permeate and fix the dyestuff molecules inside the aramid fibers.

Abstract: A process of printing a predetermined pattern on and improving the flame resistance of a poly(m-phenyleneisophthalamide)-containing textile fabric including the successive steps of: (a) applying a print paste, composed of a highly polar solvent selected from dimethylsulfoxide, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, and mixtures thereof, the polar solvent adapted to swell the aramid fiber and introduce a dyestuff therein, at least one organic dyestuff that is soluble in the polar solvent, a print paste thickening agent compatible with both the polar solvent and the dyestuff, a flame retardant and water in a predetermined pattern onto the surface of the aramid textile; and (b) drying and curing the thus printed fabric at an elevated temperature sufficient to permeate and fix the dyestuff and the flame retardant molecules inside the aramid fibers.

Abstract: Novel compounds of the general formula I ##STR1## where A.sup..crclbar. is an anion, R is hydrogen or unsubstituted or substituted alkyl or cycloalkyl, R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be aryl, or R.sup.1 and R.sup.2, together with the nitrogen atom, form a saturated heterocyclic structure, the radicals R.sup.3 independently of one another are each hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 and R.sup.5 independently of one another are each unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be hydrogen, aryl or hetaryl, R.sup.4 and R.sup.5, together with the nitrogen atom, form a saturated heterocyclic structure, n is 1, 2 or 3, X is hydrogen, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or nitro and Y is hydrogen or chlorine, are particularly useful for dyeing paper stocks.

Abstract: When silk fabrics, pre-treated with swelling agents, are printed by heat transfer techniques, the fabric will yellow. The invention eliminates yellowing by pre-treating said silk fabrics with a liquid or solid impregnating agent, dissolved or dispersed in water, then drying the fabric, and adding before, during or after the pre-treating an optical brightening agent of the type normally used for polyester.The impregnating agent can alternatively be applied to the fabric in a water-free condition before or during dyestuff transfer, and an optical brightener may be added.It is further contemplated to use easily migrating dyestuffs which are transferred to the fabric at relatively very low temperatures, and to avoid dyestuff migration by pre-treating the silk fabric with solid impregnating agents.All these techniques produce deep and brilliant shades; the prints have excellent fastnesses.

Abstract: Salts of acetoacetylamino-arylsulphonic acids, of the formula ##STR1## wherein R denotes an optionally substituted benzene or naphthalene nucleus,Me denotes a protonated, tertiary, hydrophilizing nitrogen base or the lithium cation andm denotes 1,2 or 3are easily obtained by reacting compounds of the formulaH.sub.2 N--R--(SO.sub.3 H).sub.mwherein R and m have the above mentioned meaning, with diketene in an aqueous or aqueous-organic solvent maintaining a pH>3 during the reaction by adding tertiary, hydrophilizing nitrogen bases or a basic lithium salt.The salts can be obtained as concentrated solutions which are easily reacted with diazotized aromatic amines to concentrated solutions of azo dyestuffs.

Abstract: Azo dyestuffs which contain, as the coupling component an indole of the formula ##STR1## wherein R denotes an optionally substituted alkyl radical, an optionally substituted aryl radical or an optionally substituted aralkyl radical, and the benzene ring A can be further substituted,frequently exhibit an undesired irreversible change in the color shade in acid solutions, which surprisingly can be prevented by adding nitrogen-containing complex-forming substances.

Abstract: The present invention is a dyeing and/or printing process which employs as an additive a composition comprising one or more cations selected from ammonium, Group I and Group II metals of the Periodic Tables due to Mendeleef, one or more carboxylate anions and water, the ratio of the anion to the cation being in the range of 2:1 and 4:1 on a chemical equivalent basis. The additive can be incorporated into the dyeing and/or printing process at various points in the process, for example at the stages of scouring of the fabric, mordanting, levelling, exhaustion, fixing finishing, water-proofing and milling. They are less corrosive to skin, clothing, plastics and metal and hence are safer to the operative and do not promote deterioration of equipment.

Abstract: Naphtholactam dyes of formula ##STR1## wherein the cyclic and acyclic radicals can carry non-ionogenic substituents, the ring D can additionally be fused to a benzene ring, and R.sub.1 and R.sub.2 are hydrogen atoms or substituted or unsubstituted hydrocarbon radicals which together are also able to form a hydrocarbon chain which is optionally interrupted by heteroatoms, dyestuffs, dye polyester fibre in fast yellow and red shade.