Abstract: The present invention is a stabilized Romanowsky type stain solution. The stain solution which comprises azures, Methylene Blue and an eosin dye in methanol is stabilized by the addition thereto of an ammonium halide, a primary, secondary or tertiary alkylamine hydrohalide or a combination thereof.
Type:
Grant
Filed:
October 14, 1980
Date of Patent:
September 22, 1981
Assignee:
Miles Laboratories, Inc.
Inventors:
John C. Liao, Chittaranjan P. Patel, John L. Ponzo
Abstract: The present invention provides a process for dyeing an anionic dyeable substrate with reserve and/or multicolored effects, which process comprises(1) impregnating the substrate with a dyeing liquor containing an anionic dye having a K'-value.gtoreq.5(2) directly thereafter applying locally to the substrate a liquor or paste containing an alkoxylated fatty amine or polyamine having affinity for anionic dyes with a K'value.gtoreq.5 and optionally a disperse dye and/or an anionic dye or an anionic optical brightening agent with the proviso that the anionic dye or optical brightening agent has a K-value at least one unit lower than the K'value of the anionic dye used in step (1), and(3) subsequently submitting the substrate to a heat treatment to effect fixation of the dye(s) and, if used, optical brightening agent.
Abstract: A process for the pretreatment of textile material consisting entirely or partially of cellulose fibers and which is to be printed according to the thermotransfer process, which comprises impregnating the textile material with a solution or dispersion containing(a) a compound of the formula INH.sub.2 --CO--Y--R (I)wherein R stands for a group of the formulae R.sub.a, R.sub.b or R.sub.c ##STR1## in said formulae R.sub.1 is hydrogen or C.sub.1-4 alkyl, R.sub.2 is C.sub.1-4 alkyl, R.sub.3 is hydrogen or methyl, n is an integer of from 1 to 6, m is an integer of from 1 to 10, X is CH.sub.2 or O and Y, in case that R stands for R.sub.a or R.sub.b is an oxygen atom and in case that R stands for R.sub.c is an oxygen atom or an imino group (NH),(b) a glyoxal or melamine formaldehyde resin and(c) an acid catalyst for the condensation of these resins, and subsequently drying the textile material and subjecting it to the action of heat.
Abstract: Process for dyeing and printing cellulose fibre materials with reactive dyestuffs having a halogen leaving group or sulphonyl leaving group on a heterocyclic radical, characterized in that the process is carried out in the presence of a cyanamide or an unsaturated amide in a weakly acid to neutral medium.
Abstract: Aqueous dyestuff preparation of water-insoluble or sparingly water-soluble dyes are used for the preparation of printing pastes for printing textile material and for printing carriers for transfer printing. These preparations contain at least 10% by weight of water, 25 to 60% by weight of a finely dispersed water-insoluble or sparingly water-soluble dye, 0.1 to 5% by weight of at least one water-soluble aminoplast precondensate, 0.5 to 5% by weight of a non-ionic copolymer of ethylene oxide with a further olefin, oxide said copolymer containing at least 65% by weight of ethylene oxide and having a molecular weight higher than 12,000, as well as, if desired or necessary, further nonionic ingredients.
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.
Type:
Grant
Filed:
February 9, 1978
Date of Patent:
January 20, 1981
Assignee:
Bayer Aktiengesellschaft
Inventors:
Herbert Hugl, Hans-Gunter Otten, Hans W. Petroll, Karlheinz Wolf
Abstract: A fabric of cellulosic fibers, particularly natural cellulosic fibers, of improved dyeability having a polymer of a monomer containing a quarternary amine group dispersed in the fibers with no phase separation is discharge printed. The improved cellulosic fibers can be prepared by impregnating a monomer containing a quarternary amine group into cellulosic fibers and polymerizing the monomer in the fibers. This treatment of cellulosic fibers with the polymer of a quarternary amine monomer can be advantageously utilized in the discharge printing of a fabric from a blend of hydrophobic synthetic/cellulosic fibers.
Abstract: Change of color of grafted fiber or fibrous material having active hydrogen can be prevented by treating the fiber or fibrous material with a processing agent consisting mainly of a compound having the following general formula ##STR1## wherein M.sub.1 -M.sub.5 represent a hydrogen atom or alkali metal, and n represents 0 or 1.
Abstract: Concentrated solutions of a direct dye having, in the free acid form the formula: ##STR1## are described. The solutions contain 10-30% (by weight) of the dye, 5-20% of one or more specifically defined bases; 0-5% of alkali metal cations; and 45-85% water and have a lower viscosity and solvent to dye ratio than solutions of the dye of similar strength prepared according to prior art methods. The solutions are prepared by isolating the diazonium salt of p- (p-aminophenyl)azo benzenesulfonic acid then coupling the diazo into J-Acid.
Abstract: The present invention provides a textile finishing process comprising applying to a substrate containing cellulose fibres an aqueous medium comprisingA. a water-soluble, monomeric, resin-forming precondensate consisting of one or more N-methylol derivates of melamine, urea, substituted ureas, triazones, carbamates and urones, or mixtures thereof, said derivative containing at least 3 N-methylol groups or their lower alkyl ethers,B. one or more compounds having solvent properties for disperse dyes, which also increase their substantivity to cellulose, and at the same time have affinity for polyester fibres.C. One or more reactive softeners which are capable of chemical reaction with the --OH groups of cellulose, thereby reducing their hydrophilic properties, andD. a catalyst system for the simultaneous cross-linking of components A, B and C which causes neglible yellowing of cellulose fibres up to a temperature of 220.degree. C.
Type:
Grant
Filed:
June 29, 1978
Date of Patent:
September 30, 1980
Assignee:
Sandoz Ltd.
Inventors:
Brian Acton, Bruno Kissling, Tibor Robinson, Milica Urosevic
Abstract: Aqueous dye formulations which contain one or more sparingly water-soluble, or water-insoluble, phthalocyanine-sulfonamides of the formula ##STR1## where A is a (n+m)-valent radical of copper phthalocyanine, cobalt phthalocyanine or nickel phthalocyanine which may be substituted by up to 4 chlorine or bromine atoms, R is hydrogen, alkyl of 1 to 5 carbon atoms or alkoxyalkyl of a total of 3 to 7 carbon atoms, R.sup.1 is a substituted or unsubstituted aliphatic, cycloaliphatic, araliphatic or aromatic radical, or ##STR2## is a saturated 5-membered or 6-membered heterocyclic ring, X.sup..sym. is H.sup..sym., an alkali metal ion, (NH.sub.4).sup..sym. or ##STR3## (where R and R.sup.1 have the above meanings), n is 2, 3 or 4 and m is 0 or 1, together with one or more conventional dispersing agents and humectants and with or without a disinfectant. The formulations give very fast prints and dyeings on cellulose and on cellulose-containing fibers.
Abstract: The object of the invention is a solution of one or more sublimable disperse dyestuffs in organic solvents. These solvents consist of at least one aliphatic hydrocarbon containing chlorine, mixed with a minor amount of hexamethylphosphorotriamide. The solutions according to the invention are particularly suitable for the manufacturing of felt tip markers or pens for decorating woven, non-woven or knitted materials by hot transfer.