Abstract: The present invention provides a colorant for inkjet inks which is free from mechanical selectivity, high in light-durability, high in reliability and low in cost. By paying attention to the chemical properties of coloring matter substances and utilizing the technical rules accumulated in the past faithfully to the properties of the coloring matter substances, an epoch-making process for producing fine-particulate colorants by a method comprising five simple steps is provided.

Abstract: The present invention relates to black alcohol soluble dye formulations of high color intensity, low viscosity, and high tinctorial strength. The formulations are particularly useful for writing instruments such as felt tip and roller ball pens.

Abstract: The invention relates to a process for the preparation of a purified version of a solvent-soluble dyestuff, comprising the steps of (a) mixing an aqueous presscake of the dyestuff into a water-miscible liquid; and (b) distilling off the water until a water content of 5% by weight maximum is attained; and (c) filtering the dyestuff composition comprising solvent-soluble dyestuff and water-miscible liquid, thereby removing all insoluble contaminants and (d) diluting the dyestuff composition comprising solvent-soluble dyestuff and water-miscible organic solvent in de-ionized water, thereby performing the precipitation of the solvent-soluble dyestuff which is then isolated after filtration and washing with de-ionized water This ink jet grade version has the important advantage of being virtually salt-free and solvent-free.

Abstract: A decorative dye colorant for use on various types of natural stone, such as granite, marble, limestone, and soapstone. The colorant is formed by mixing a solvent soluble dye with a suitable solvent, such as a ketone or an alcohol to form a dye solution. The solvent enables the dye to penetrate easily into the pores or openings located in the surface of the stone to color the stone so as not to mar the appearance of the surface of the stone. The dye is resistant to removal or discoloration, but may be removed by extended contact of certain chemicals with the dye. To permanently prevent the removal of the dye, a sealer is applied over the dye to prevent any such materials from contacting the dye. The sealer is comprised of an aliphatic urethane mixed with the alcohol xylol that also includes ultraviolet light resistant properties to prevent the dye from fading over time.

Abstract: An invention is disclosed which pertains to a method for purifying water soluble dyes, such as quinoline, fluoran, and xanthene dyes. The method comprises the steps of A) adding a metal salt to the water soluble dye to form a water insoluble dye salt of the metal; B) isolating the water insoluble dye salt of step A; C) converting the water insoluble dye salt of step B into a water soluble dye solution; and D) isolating the water soluble dye from the solution of step C. The present invention teaches a straight forward, economical, and environmentally sound method for purifying water soluble dyes of FDA certifiable purity and with an aesthetically improved shade.

Abstract: A water-reducible composition comprises A) between about 20 and about 50 wt % of a water-insoluble nigrosine, B) between about 25 and about 40 wt % of a solvent having a flashpoint of at least about 141.degree. F. (61.degree. C.) and a boiling point of at least about 280.degree. F. (138.degree. C.), and C) between about 20 and about 40 wt % of a non-ionic surfactant, the weight percentages being based on total weight of A), B), and C).The composition is prepared by dissolving the nigrosine A) in a C.sub.1 -C.sub.3 alkanol to form an alcohol solution, mixing the alcohol solution with the solvent B) and non-ionic surfactant C, and subsequently stripping the C.sub.1 -C.sub.3 alkanol.

Abstract: Dye preparations comprising one or more dyes with no water-solubilizing groups in the molecule from the class of the metal complex azo dyes or the metal phthalocyanines and reaction products between from 1 to 50 mol of ethylene oxide and 1 mol of castor oil are useful for coloring granular or pulverulent substrates and for preparing aqueous dye preparations useful in printing inks.

Abstract: A dye composition that presents lower mutagenic characteristics useful in coloring petroleum products comprising a substantial amount of the dye of the formula ##STR1##

Abstract: This invention is directed to a method of treating fabrics and garments so as to impart onto said fabrics and garments an antique or vintage look and feel. This invention is further directed to antique-looking and feeling fabrics and garments.

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: Water-immiscible solvent dyes are mixed with citrus solvents and non-ionic surfactants to form a water-reducible true dye solution containing at least 35 wt % of the water-immiscible dye. The dye solution is dispersible in water and infinitely reducible.

Abstract: Bulk dyeing of plastics using dyestuffs of the formula (I) ##STR1## wherein n denotes 1 or 2, preferably 1,R.sub.o for n=1, denotes aryl, hetaryl or heterocyclylidenemethyl, or for n=2, denotes a direct bond or arylene andthe ring A is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, C.sub.1 -C.sub.4 -alkyloxy, C.sub.6 -C.sub.10 -aryloxy, C.sub.6 -C.sub.10 -aryl- or C.sub.1 -C.sub.4 -alkylsulphonyl, cyano, halogen, in particular chlorine or bromine, or a radical of the formula --COR.sub.1, wherein R.sub.1 represents C.sub.1 -C.sub.4 -alkoxy, amino, C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino, C.sub.6 -C.sub.10 -arylamino, C.sub.1 -C.sub.4 -alkyl or C.sub.6 -C.sub.10 -aryl, or contains a fused-on aromatic or cycloaliphatic ring,the plastics used being, in particular, thermoplastics, preferably vinyl polymers, polyesters or polyamides.

Abstract: The monoazo compound represented by formula I is excellent in compatibility with, solubility in, and coloring power for, almost all water-immiscible organic liquids, has a low melting point, and is suitable for use to color molten plastics, synthetic fiber spinning solutions, etc., and to color thermal transfer ink. ##STR1## wherein R represents sec-butyl; Cp represents a coupling component residue.The dense solution of at least one kind of said monoazo compound in a hydrocarbon solvent diffuses and dissolves quickly and uniformly in coloring subjects such as petroleum products, and is capable of coloring fuel oil etc. to a desired distinguishable color density with small amounts.

Abstract: A method of dyeing film of polyethylene terephthalate wherein the film is immersed in a dye bath of solvent or dispersion dyes dissolved in a carrier consisting of glycerol triacetate, the dye bath being heated so the film is raised to the glass transition temperature of the film, and the dye and carrier are absorbed into the film. The dye and carrier are removed from the surface of the film by a washing bath, and the film is then heated to remove the carrier absorbed in the film without depreciating the dyestuff or the film.

Abstract: A liquid azo dye represented by the formula: ##STR1## (wherein, A stands for a phenylene group which may have a substituent, n is o or 1, Cp is a pyrazolone derivative residue or a naphthol derivative residue, X is --NH-- or --COO-- and R is an alkyl group having 3 to 12 carbon atoms).

Abstract: Salts of ionic dyes with compounds which contain at least one ammonium, cycloammonium or immonium group and at least one aliphatic, cycloaliphatic or carbonyl radical-substituted aromatic group or containing a piperazine or piperidine group or a heteroaromatic group selected from those of the triazine, pyrimidine, quinazoline, quinoxaline, phthalazine or phthalimidine series or which contain at least two carboxylic acid groups, at least one amino group and at least one carboxylic acid group or at least one sulfonic acid group and one aliphatic, cycloaliphatic, monocyclic aromatic or heteroaromatic group are useful for dyeing synthetic materials, particularly synthetic polyamides in the mass. The obtained dyeings have exceptionally good wet fastness.

Abstract: Wood stains contain in addition to a colorant and a solvent at least one stabilizer against the action of light, oxygen and heat on the wood treated with the wood stain, said stabilizer containing at least one structural element of the formula I ##STR1## where X is oxygen or nitrogen.

Abstract: A method of dyeing film of polyethylene terephthalate wherein the film is immersed in a dye bath of solvent dyes dissolved in a carrier consisting of glycerol triacetate, the dye bath being heated so the film is raised to the glass transition temperature of the film, and the dye and carrier are absorbed into the film. The dye and carrier are removed from the surface of the film by a washing bath, and the film is then heated to remove the carrier absorbed in the film without depreciating the dyestuff or the film.

Abstract: Synthetic textile fibers are dyed in a waterless coloring composition composed of a high-boiling ester solvent and a dye that (a) is soluble to the extent of at least 1.5% in the solvent, (b) provides a depth of coloration, expressed as yield, of at least 25%, (c) imparts to the dyed fibers a lightfastness value of at least 3, and (d) provides the dyed fibers with a washfastness value of at least 3.

Abstract: A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of (i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the uncured resin upon the surface of the substrate; (ii) immersing said film in a solution of a resin additive in a solvent medium comprising water and a water miscible organic solvent, the amount of said resin additive dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient additive to impart the desired property to the cured resin film, the composition of said solvent medium being such that the requisite amount of additive can be dissolved therein and such that said desired property is imparted to said resin film while immersed in said solvent medium without significant damage to the resin fim; and (iii) curing the resin.

Abstract: Textile fabrics such as polyester, nylon and high-tenacity nylon are continuously dyed using a non-aqueous dye composition at elevated temperatures in an air atmosphere. The non-aqueous dye composition consisting of high-boiling, nonionic solvent and a dye, is applied to the textile in an air atmosphere at a temperature below 280.degree. F. then, while the dye composition is entrained in the fabric, the fabric is heated also in an ambient atmosphere to effective dyeing. Non-reactive environments or inert temperatures are not required.

Abstract: Textiles, especially polyester, nylon and high-tenacity nylon, are continuously dyed in an organic medium containing a high-boiling, nonionic solvent admixed with one or more lower-boiling organic solvents and at least one dyestuff dissolved in the solvent media. The lower-boiling solvent acts as a carrier to entrain the dye and allows the dye to enter the fiber evenly. The non-aqueous dyestuff medium allows the process to be conducted above the boiling point of water which facilitates dye penetration into the fiber and, in turn, shortens the dyeing process. Atmospheric pressure may be used, thus avoiding the constraints of a batch-type operation of pressurized dyeing procedures, as is conventionally used in this art. Fabric may be dyed in open width under restraint at elevated temperatures thereby achieving uniform coloring of the fabric without shade variations from end-to-end or "tailing".

Abstract: Textile fabrics are dyed in open widths in a closed, heated environment by spraying a heated dye composition containing a dyestuff dispersed in a non-aqueous, high-boiling solvent, without the dye applicator directly contacting the fabric, directly onto the fabric. The sprayed fabric is held under transverse tension in a heated (350.degree. to 450.degree. F.) environment and further heated while the sprayed dye dispersion migrates, penetrates thoroughly through the fabric and levels substantially evenly across the width of the fabric. Fabrics are thus simultaneously uniformly dyed and uniformly heatset. Apparatus for conducting the process is also disclosed.

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 for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of(i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the resin upon the surface of the substrate(ii) immersing said film in a solution of a solvent dye in a solvent medium comprising water, a water miscible organic solvent and a hydrotrope, the amount of said solvent dye dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient dye to impart the desired coloration to the resin film, the amount of said hydrotrope and said solvent being sufficient so that said amount of such solvent dye will dissolve in the solvent medium and(iii) curing the resin.

Abstract: Novel liquid dye formulations which contain organic carbonates in addition to conventional components are very useful for dyeing organic substrates.

Abstract: This invention is directed to inks (coloring solutions) for polyvinyl resin surfaces, particularly PVC wire insulation color coding, where the ink consists essentially of a Color Index Solvent dye dissolved in a liquid halogenated hydrocarbon solvent having 1-2 carbon atoms. A preferred solvent is dichloromethane.

Abstract: Dyestuffs of the formula ##STR1## are used for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings, wherein R is alkyl having 1 to 7 carbon atoms, R.sup.1 is alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms, and R.sup.2 is hydrogen, alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms.

Abstract: Dyeing of plastic articles, particularly sunglass lenses is conducted by use of a dye bath composition comprising a dye and a mixed solvent. At least about 70 weight % of the mixed solvent consists of glycerol and ethylene glycol whose relative ratio is in the range of from 95:5 to 20:80. The dyeing method and the dye bath composition are very advantageous for manufacturing sunglass lenses having high optical and aesthetic quality, particularly for dyeing hard-coated polarized lenses.

Abstract: A process for dyeing surface coatings, organic solvents and petroleum products, wherein the dye used is a compound of the general formula I ##STR1## where R is C.sub.1 -C.sub.17 -alkyl, which may or may not be interrupted by oxygen and may or may not be substituted by hydroxyl or phenoxy, or is allyl,R.sup.1 is hydrogen or C.sub.1 -C.sub.8 -alkyl,R.sup.2 is C.sub.1 -C.sub.12 -alkyl which may or may not be interrupted by oxygen and may or may not be substituted by hydroxyl or phenoxy, or is C.sub.7 -C.sub.11 -aralkyl,X is hydrogen, chlorine, bromine, methyl or methoxy,Y is hydrogen, methyl or chlorine andR.sup.1 and R.sup.