Abstract: An improved method of making a series of bead or microsphere or particle populations characterized by subtle variation in a proportion or ratio of at least two fluorescent dyes distributed within a single bead of each population is provided. These beads, when excited by a single excitation light source are capable of giving off several fluorescent signals simultaneously. A set containing as many as 64 distinct populations of multicolored, fluorescent beads is provided and when combined with analytical reagents bound to the surface of such beads is extremely useful for multiplexed analysis of a plurality of analytes in a single sample. Thus, methods of staining polymeric particles, the particles themselves, and methods of using such particles are claimed.

Abstract: An improved method of making a series of bead or microsphere or particle populations characterized by subtle variation in a proportion or ratio of at least two fluorescent dyes distributed within a single bead of each population is provided. These beads, when excited by a single excitation light source are capable of giving off several fluorescent signals simultaneously. A set containing as many as 64 distinct populations of multicolored, fluorescent beads is provided and when combined with analytical reagents bound to the surface of such beads is extremely useful for multiplexed analysis of a plurality of analytes in a single sample. Thus, methods of staining polymeric particles, the particles themselves, and methods of using such particles are claimed.

Abstract: A composition for dyeing material of synthetic aromatic polyamide fibers, said composition containing a mixture of (a) a cationic dye and (b) a cyclohexenone as a dye assistant. Preferably, 2-cyclohexen-1-one,3,5,5-trimethyl is the dye assistant.

Abstract: The present invention relates to the use, for dyeing keratin fibers, of at least one aliphatic cationic amine and of at least one compound chosen from an aldehyde, a ketone, a quinone and a diiminoisoindoline or 3-aminoisoindolone derivative, in order to obtain, by reaction without an oxidizing agent, a coloration of the said keratin fibers. The invention also relates to dye compositions comprising these compounds and to dyeing agents for using them.

Abstract: The present invention relates to the use, for dyeing keratin fibres, of at least one heterocyclic cationic amine and of at least one compound chosen from an aldehyde, a ketone, a quinone and a diiminoisoindoline or 3-aminoisoindolone derivative, in order to obtain, by reaction without an oxidizing agent, a coloration of the said keratin fibres. The invention also relates to dye compositions comprising these compounds and to dyeing agents for using them.

Abstract: Stabilized metachromatic dyes, especially at application concentrations, comprising metachromatic dyes dissolved in one or more non-aqueous solvents, as well as metachromatic dyes dissolved in pH stabilized aqueous solutions. Also, various combinations of treatments are disclosed for stabilizing metachromatic dyes.

Abstract: A liquid dyestuff composition comprising from 4 to 50 wt % of a basic or cationic water soluble dyestuff, an organic or inorganic acid and 0.1 to 15.0 wt % of a phenolic derivative, the dyestuff having a solubility in water in the presence or absence of a phenolic derivative of at least 1 g/liter at a temperature of 25° C. and the composition being made up to 100 wt % by water and optionally a water-miscible solvent and/or a dissolving auxiliary; a process of dyeing a substrate like paper with such composition; a powder or granulate form of such composition and the use of such a composition or powder or granulate thereof in a dyeing process.

Abstract: Micro-particles of transition metals or their compounds can be generated as an integral part of a fiber by first attaching a nucleating agent to the fiber, and then adding a solution of metal ions. The ions are reduced by the nucleating agent in the fiber, and micro-particles are generated in or on the fiber. Because of the strong color signal resulting from a low concentration of metal micro-particles, the method is cost effective even when using gold or titanium ions. Various colors were generated by changing the size and spacing of the micro-particles, the metal or metal complex used, and the characteristics of the fiber. The dyed fibers displayed colors ranging from pink, red, purple, yellow, orange, peach, brown, gold, silver, grey, green, and black. These colors resisted bleaching by either chemicals or light.

Abstract: This invention concerns a process for reducing dyes of the group consisting of sulfur and vat dyes. The reduction is carried out in an aqueous alkali medium using isomaltulose or a mixture containing isomaltulose as the reducing agent.

Abstract: An aqueous or aqueous-alcoholic composition for dyeing natural or synthetic fibers, especially hair, contains a combination of at least one cyclic oxo-substituted enediol according to formula I: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and independently of each other represent a hydrogen atom or an alkali metal atom, or R.sub.1 and R.sub.2 together represent an alkaline earth metal atom and n=0, 1, 2 or 3; and at least one member selected from the group consisting of malonic acid dinitrile, maleic acid diaminodinitrile, 2,5-diamino-6-nitropyridine, 1,2,3,4-tetrahydro-6-nitroquinoxaline, 7-amino-3,4-dihydro-6-nitro-2H-1,4-benzoxazine and substituted nitrobenzene compounds; as well as water and at least one cosmetic ingredient including solvents other than water, surfactants, thickeners, care materials and adjuvant materials.

Abstract: New sulfur dyes comprising in their preparation at least one sulfur dye intermediate of the formula I ##STR1## wherein R and R.sub.1 are independently nitro, nitroso or amino, are produced by including in their preparation at least one modifying agent selected from the group of: A) an aldehyde; B) urea; C) a benzoquinone or naphthoquinone; and D) monoethanolamine or by treating an already prepared sulfur dye involving such an intermediate in its preparation, with at least one aldehyde, benzoquinone or naphthoquinone or with monoethanolamine.

Abstract: An aqueous dispersion comprising at least one of the UV absorbing compounds of the following formulae I, II or III as below defined: A--B (I); A--C--A (II); or B--A--B (III); wherein in Formula (I) and (II) ##STR1## and in Formula III, A is ##STR2## Y being a direct bond, a substitute C.sub.1-4 alkylene group, ##STR3## and R.sub.1 to R.sub.5 independently of each other are hydrogen; C.sub.4-4 alkyl, the alkyl optionally being substituted; aryl; heterocyclyl; or any two of R.sub.1 to R.sub.5 which are adjacent, together form part of a ring, with the proviso that no more than four of R.sub.1 to R.sub.5 are hydrogen.

Abstract: A liquid dyestuff composition comprising from 4 to 50 wt % of a basic or cationic water soluble dyestuff, an organic or inorganic acid and 0.1 to 15.0 wt % of a phenolic derivative, the dyestuff having a solubility in water in the presence or absence of a phenolic derivative of at least 1 g/liter at a temperature of 25.degree. C. and the composition being made up to 100 wt % by water and optionally a water-miscible solvent and/or a dissolving auxiliary; a process of dyeing a substrate like paper with such composition; a powder or granulate form of such composition and the use of such a composition or powder or granulate thereof in a dyeing process.

Abstract: A composition of a water-soluble bis-azo dye of the Formula (1) and an oxidising agent. ##STR1## wherein A is optionally substituted phenyl or optionally substituted naphthyl;B is optionally substituted phenylene or optionally substituted naphthylene;R.sup.1 is H or sulpho;R.sup.2 is H, optionally substituted alkyl, optionally substituted aryl or optionally substituted acyl;R.sup.3 is H, optionally substituted aryl, optionally substituted alkyl or a group, -D-E,D is optionally substituted C.sub.2-6 -alkylene; andE is a group of the Formula (1a): ##STR2## R.sup.4 & R.sup.5 each independently is H or optionally substituted alkyl; andR.sup.6 is H, optionally substituted alkyl, optionally substituted aryl or optionally substituted acyl.

Abstract: A dye solution comprising a laser recordable dye and a solvent for the dye that has (a) a solvent functional group selected from esters, ketones and ethers; and (b) the solvent functional group has as hindering groups (i) at least one t-butyl group on one side thereof or (ii) two groups on opposite sides thereof selected from the group consisting of isoamyl, t-butyl, isobutyl and isopropyl; provided that both groups cannot be isopropyl and (c) the hindering groups are adjacent to the solvent functional group.

Abstract: A liquid dyestuff composition comprising a solvent-soluble dyestuff and a water miscible organic solvent, the composition comprising over 25% by weight of dissolved dyestuff.

Abstract: By reducing a sulphur dye (S) in aqueous medium with a reducing carbonyl compound in the presence of alkali metal hydroxide and optionally alkali metal (bi)sulphite at temperatures above 60.degree. C. and drying the reaction mixture, there are obtained very stable leuco sulphur dyes (L), which are practically free of sulphides and polysulphides, are readily and completely soluble in water and are usable for the dyeing of substrates dyeable with sulphur dyes, by which a disturbing development of H.sub.2 S or a disturbing inorganic sulphide occurrance in the waste water can be efficiently avoided; by spray-drying in a drying time <4 minutes as described there are obtained sulphide-free, stable leuco sulphur dyes (L) readily soluble in water and particularly suitable for sulphide-free dyeing, in particular for the dyeing of polyamidic fibrous substrates, especially of wool.

Abstract: A process for dyeing and printing textile materials consisting of cellulose fibers or containing cellulose fibers in a blend with other fibers in an aqueous medium at above pH 12 with vattable dyes in the presence of cyclic compounds which contain at least one instance of the structural unit ##STR1## in the ring of the molecule as reducing agents and finishing the dyeing in a conventional manner.

Abstract: Aqueous stable dispersions of a mixture of sparingly soluble UV absorbers, which comprises(a) 5 to 50% by weight of a mixture of a benzotriazole of formula ##STR1## and a 2-hydroxybenzophenone of formula ##STR2## wherein R is halogen, C.sub.1 -C.sub.12 alkyl, lower alkoxy, lower alkoxycarbonyl, cycloalkyl, aryl, C.sub.1 -C.sub.12 alkylaryl or aralkyl, and the rings A and B, each independently of the other, may be further substituted by halogen, hydroxy, lower alkyl, lower alkoxy or lower alkoxycarbonyl,R.sub.1 is hydrogen, hydroxy, C.sub.1 -C.sub.14 alkoxy or phenoxy,R.sub.2 is hydrogen, halogen or lower alkyl,R.sub.3 is hydrogen, hydroxy or lower alkoxy, andR.sub.4 is hydrogen or hydroxy,(b) 2 to 18% by weight of an anionic compound, and(c) 0 to 10% by weight of a nonionic compound.These dispersions of a mixture of UV absorbers are excellent compositions for enhancing the lightfastness of dyeings on synthetic fibers and, in particular, on polyester fibers or acid-modified fibers.

Abstract: A sulfur dye or sulfurized vat dye is treated in an aqueous reducing medium, preferably an aqueous mixture of alkali and reducing sugar, to form a solution which is then oxidized to form particles of the dye having improved characteristics.

Abstract: PEKK fiber is dyed with a disperse dye in an organic dye carrier.

Abstract: The present invention relates to compounds of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, x and y are defined as in the description, processes for their preparation, their use for improving the light stability of polyester dyeings and a dyeing process and dye preparations.

Abstract: Poly(m-phenyleneisophthalamide) fabrics are printed and optionally flame retarded in a two-step process in which the dye diffusion promoting agent N-octyl-2-pyrrolidone optionally with a flame retardant is applied following by printing and print fixation.

Abstract: The present invention provides a modified turmeric. The modified turmeric is a phosphorylated turmeric that results in a structure having greatly improved stability in the presence of light, and solubility in the presence of a solution. The invention produces a natural dye for use as a substitute for yelIow dye No. 5.

Abstract: Processes for improving the thermal and/or photochemical stability of undyed and dyed polyamide fibers by treatment with an agent from an aqueous bath containing (A) a compound of the formula (I) defined in claim 1 and (B) a UV absorber.

Abstract: Aromatic polyamide fibers, which have been dried and/or crystallized, are steam dyed with a water-soluble dye padded onto the surface of fibers, along with a small amount of a carrier.

Abstract: A lens reduces eye strain and fatigue due to glare, after images, reflections or other visual noise incident upon an observer of a visual display terminal. The lens includes a light transmitting plastic body having a convex shaped outer surface for deflecting stray angular radiation and a body provided, in combination with, an ultraviolet absorber to block the transmission of ultraviolet radiation, a colored dye to diminish the intensity of any fluorescent light incident upon the lens and to diminish the transmission of either or both green color radiation or yellow color radiation through the lens and a grey dye to reduce the transmission of incident light.

Abstract: A process for the dyeing of wool with anionic dyes is described, wherein the wool is dyed in the presence of a UV absorber and bleached oxidatively and then bleached reductively in a new bath.This process makes it possible to produce very bright, brilliant shades.

Abstract: There is disclosed a process for the photochemical stabilization of dyed polyamide fibre materials, which comprises treating the dyed material with an aqueous foamed composition which contains at least a non-dyeing copper complex of bisazomethines, acylhydrazones, semicarbazones or thiosemicarbazones of aromatic aldehydes or ketones or oximes.By means of the process of this invention it is possible to prevent wastewater from being contaminated with copper-containing impurities.

Abstract: A process is described for the photochemical stabilization of undyed and dyed polyamide fibre material, and blends thereof with other fibres, using photochemically stabilizing compositions based on copper compounds of phenols, which process comprises treating the polyamide fibre material with fibre-reactive organic copper complexes of the reaction products of o-hydroxybenzoyl derivatives of the formula ##STR1## wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl and the OH substituent is located in the 3-, 4- or 5-position, with aliphatic diamines or hydroxylamine. The copper complex compounds are distinguished by a high rate of exhaustion on to the polyamide fibre material, a feature which is significant in economic terms because of the low consumption of product.

Abstract: Process for dyeing and printing cellulosic fiber materials with vat dyes in the presence of enediols as reducing agents and alkali, using in addition small amount of organic water-miscible solvents, for example low molecular weight alcohols, when reducing the vat dyes. The vatting of the vat dyes proceeds uniformly and completely within a relatively short time, and the resulting vat dyes are reproducible and notable for high levelness and fastness properties.

Abstract: Textile materials made of polyester, triacetate, acetate or polyamide or mixtures thereof are printed by the discharge printing or discharge resist printing technique by using as discharging agent for disperse dyes a 3-aminoreductone of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and each is hydrogen, methyl or ethyl and R.sup.4 is linear or branched alkyl or alkenyl of from 1 to 20 carbon atoms, which may be monosubstituted or polysubstituted by hydroxyl, alkoxy of from 1 to 3 carbon atoms in the alkyl or acetoxy, or is a radical --(CH.sub.2 --CH.sub.2 --O).sub.n H where n is from 1 to 10 and which may be etherified with alkyl of from 1 to 3 carbon atoms or esterified with acetyl, or R.sup.4 together with the N-atom is the radical of an aliphatic .alpha.- or .beta.-amino acid of from 2 to 15 carbon atoms, in which case the carboxyl group may be present in neutralized form as an alkali metal, alkaline earth metal or ammonium salt or in esterified form as a C.sub.1 -c.

Abstract: Improved light fastness of dyeings on textile polyester material with disperse dyes is obtainable by dyeing in the presence of certain benzophenone ether esters, some of which are novel.

Abstract: A process for the photochemical stabilization of polyamide fiber material or mixtures thereof with other fiber materials which comprises treating the fiber material with a mixture of (A) a water-soluble copper complex dye or a mixture of copper complex compounds, at least one component being a water-soluble copper complex dye, (B) a light stabilizer and if desired (C) an antioxidant, an agent for carrying out the process and the fiber material treated therewith are described.

Abstract: Photodegradation and light-stabilizing amounts of a combination of an oxalanilide UV absorber and a hindered amine light stabilizer are applied to a dyed polyester fabric providing a lightfastness rating of at least 4 AATCC Gray Scale following 100 hours WeatherOmeter exposure. Fabrics so protected are useful for automotive fabrics and draperies.

Abstract: Textile polyester material is dyed with disperse dyes in the presence of specific benzophenone derivatives, some of which are novel, to improve the light fastness.

Abstract: A process for the photochemical stabilization of undyed and dyed polyamide fibre material or blends thereof with other fibre materials, which comprises treating the fibre material with a mixture of (A) an organic copper complex, (B) a light stabilizer and, if desired, (C) an antioxidant, an agent for carrying out the process and the fibre material treated with the agent are described.

Abstract: Liquid formulations of mixtures of cationic dyes frequently have a very short storage life. As a consequence, these formulations give rise to customer complaints concerning incorrect dyeing strengths and hues and concerning isoluble constituents. It has now been found according to the invention that powder formulations and in particular liquid formulations of cationic dyes or of mixtures of these dyes can be stabilized by adding selected oxidizing agents.

Abstract: A method and system are provided for enabling amateurs and non-professionals to restore faded or discolored color photographs and snapshots to their original condition by treating the faded or discolored color photographs and snapshots to clean areas with a remover of anhydrous acetone-free diacetone and coating or coloring the cleaned areas with a color corrective restorer comprising a powdered dye embedded or dispersed in anhydrous diacetone preferably in the relative proportions of 40 grains dye: 30 ml anhydrous diacetone or by using wax cube compositions of alcoholic paraffin or other suitable wax with acetone-free diacetone in the relative proportions of 100 grams wax in alcohol: 1-3 grams powdered dye therein in the optional presence of liquid glycerin and/or lecithin. Procedure and equipment as described for carrying out the invention which is characterized by the slower evaporation rate of diacetone as compared to denatured alcohol to provide adequate time to carry out the process steps.

Abstract: In the conventional discharge printing on polyamide fiber materials using acid dyes, above all, the very low wet and light fastness properties of the designs obtained in this manner are frequently an obstacle to the wide expansion of this interesting technique in practice. Applying this known patterning method for wool or nylon to resist prints made with reactive dyes being distinguished by better fastness level, does not always produce satisfactory white resist effects when, for example, sulfite compounds as the resist agent and reactive dyes having esterified .beta.-hydroxyethylsulfonyl groups as the reactive radical are taken into consideration; colored effects having a bright hue are not even possible at all in various cases.

Abstract: A method is disclosed for patterning a textile substrate by treating the substrate surface in a pattern configuration, for example, using heated air streams, to allow a later-applied solvent to extract dye from the treated areas at a faster rate than from untreated areas. A patterned product is also disclosed.

Abstract: A process for photochemical stabilization of non-dyed and dyed polyamide fibre material and mixtures thereof with other fibres which comprises treating the fibre material with a fibre-reactive copper complex of bisazomethines prepared from, for example, salicylaldehydes and aliphatic diamines is described. Some of these copper complexes used are novel compounds. The polyamide fibre material, for example textile material, thus treated largely retains its extensibility and elasticity even after relatively prolonged exposure to light. In addition, a clear improvement in light-fastness is achieved in dyed material by treatment with the metal complex.

Abstract: The invention provides a solution of one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and a benzophenone; and an emulsifier in an organic solvent system.The solutions of the invention are useful for providing level dyeings of polyester material particularly for use in the automotive industry.

Abstract: A key button molded of a synthetic resin and having on the top surface thereof a character or symbol printed with a coloring agent comprising a dye and a solvent which is capable of dissolving the dye and the synthetic resin, wherein the character or symbol is durably formed on the top surface by the action of the solvent on the surface and body to cause the dye to permeate the surface and the body.

Abstract: The light fastness of polyamide dyeings can be improved by treating polyamide fibre materials, before, during or after dyeing, with copper complexes of the reaction products of salicylaldehydes with amines (for example cyclohexylamine), or with copper complexes of o-hydroxybenzophenones.

Abstract: A process for dyeing without shrinkage with a disperse dyestuff or an optical brightening agent a fibrous substrate whose fibres comprise a mixture of polyvinyl chloride and acetalized polyvinyl alcohol, in which the substrate is dyed at a temperature from 60.degree. to 90.degree. C. in the presence of a levelling carrier, this levelling carrier being removable when the dried substrate is subsequently submitted to a dry heat treatment for a period up to 120 seconds and at a temperature from 95.degree. to 135.degree. C.

Abstract: An improved process for dyeing closely constructed non-tufted textile materials is provided wherein an effective minor amount of a substantially oil and water repellent fluoropolymer is applied to the textile material. The substantially oil and water repellent fluoropolymer employed can be represented schematically as ##STR1## The textile material can be, if desired, scoured with an aqueous surfactant solution to remove any residual dirt, oil or processing aids present on the textile material and thereafter scoured with an aqueous acidic solution to provide the textile material with an acidic pH prior to application of the fluoropolymer. Further, the back portion of the textile material can be backcoated with an elastomer composition. Once the textile material has been treated using any of the above processing steps, in combination with the application of the fluoropolymer, the resulting polymer-modified textile material is thoroughly dried and cured prior to dyeing.

Abstract: Dyed or printed synthetic fibers or materials consisting of synthetic fibers or of a mixture of synthetic fibers with other fibers are aftertreated with aqueous solutions which contain from 0.2 to 20 g/l of a mixture of one or more surfactants and a reductonate. The pH of the liquor is brought to above 8 and the aftertreatment is carried out at from 40.degree. to 100.degree. C.