Abstract: Pyrrole derivatives of 1,4-naphthoquinone and of 1,4-dihydroxynaphthalene, dye compositions containing them and the corresponding dyeing process.

Abstract: A leather coloring process for carrying out coloring on a natural leather, or a natural leather which has been subjected to degreasing. The coloring process is accomplished by ink-jet coloring on at least a partial area of the natural leather.

Abstract: Hair coloring compositions comprise a preformed organic peroxyacid oxidizing agent selected from the group consisting of (i) a compound of the formula ##STR1## wherein X is a substituted or unsubstituted C.sub.12 alkyl group, and (ii) a compound of the formula ##STR2## wherein R.sup.1 is selected from the group consisting of alkyl, aryl and alkaryl groups with from 1 to 14 carbon atoms, R.sup.2 is selected from the group consisting of alkylene, arylene and alkarylene groups containing from 1 to 14 carbon atoms, and R.sup.5 is selected from the group consisting of H, alkyl, aryl and alkaryl groups containing 1 to 10 carbon atoms; and at least one oxidative hair coloring agent. The compositions are suitable for coloring human or animal hair and may be provided in a hair coloring kit comprising a single package including two separate bottles.

Abstract: This invention relates to a method and apparatus for space-dyeing yarns. A yarn sheet passes over a yarn-driven roll equipped with a digital sensor that tracks the position of the sheet as it then passes through a dyeing apparatus. A computer precisely controls the spray application of dyes at the desired locations on the length of the yarn sheet. Undyed areas and areas of unwanted overlap of dyes are virtually eliminated, reducing the amount of off-quality yarn produced versus conventional methods. Sprayed dye droplets are collected and reused.

Abstract: The present invention provides a process for efficient recovery of dyestuffs from dye-based optical disks, and to provide a solvent used for recovery. Disclosed herein is a process for recovering dyestuffs from dye-based optical disks by treating the dyestuff-containing layer with a solvent containing a singlet oxygen quencher. Disclosed also herein is a solvent for dyestuff recovery which contains a singlet oxygen quencher.

Abstract: Disclosed are hair care compositions and methods for preparing such compositions which provide the benefits of cleaning, conditioning, curl retention, styling and setting properties simultaneously to hair in the application of a single product. The hair care compositions contain fatty alkyl amine salts, long chain quaternary ammonium salts and mixtures thereof of anionic styling polymers in a non-anionic surfactant system, wherein the surfactant system contains nonionic surfactants, semi-polar nonionic surfactants, amphoteric surfactants and mixtures thereof. The styling, setting and conditioning agents are present in the form of fatty alkyl amine salts or fatty quaternary ammonium salts which form anionic styling polymer particulate networks upon dilution in water. These networks are dispersed in the aqueous non-anionic surfactant system and are stabilized and thickened by optional swellable polymer thickening agents.

Abstract: The present invention relates to detergent compositions comprising: a) a hydrophobic bleaching system selected from i) hydrogen peroxide or a source thereof in amount of from 0.1% to 60% by weight and combined with a hydrophobic peroxyacid bleach precursor in amount of from 0.1% to 60% by weight, ii) a preformed hydrophobic peroxyacid in amount of from 0.1% to 60% by weight, and iii) mixtures of i) and ii), wherein a hydrophobic peroxyacid bleach precursor is defined as a compound which produces under perhydrolysis a hydrophobic peroxyacid whose parent carboxylic acid has a critical micelle concentration less than 0.5 moles/liter measured in aqueous solution at 25.degree. C. and pH 7, and wherein a hydrophobic preformed peroxyacid is defined as a compound whose parent carboxylic acid has a critical micelle concentration less than 0.5 moles/liter measured in aqueous solution at 25.degree. C. and pH 7; b) up to 5% by weight of a perfume composition; and c) at least 0.

Abstract: The present invention provides a method for quickly and easily applying hair dye to the hair of a person. The method allows the creation of simple patterns and designs or increasingly complex patterns and designs of a highly intricate and detailed fashion. The method provides a hair dye applicator which can be rolled or daubed on the hair of a person to create highly unique and personalized patterns. By providing applicators of various shapes and patterns, and a tray to hold hair dyes of different colors, designs of increasing intricacy and complexity can be realized.

Abstract: Disinfecting compositions comprising a peroxygen bleach, glutaraldehyde, an antimicrobial essential oil and an amphoteric surfactant, preferably useful in combination with an amine oxide surfactant. The compositions are especially for cleaning and disinfecting hard surfaces.

Abstract: An oxidation dye composition for keratin fiberes, and in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, characterized in that it also comprises a nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit, and the invention also relates to the processes and dyeing devices using the said oxidation dye composition.

Abstract: A hair brightening process and aqueous hair brightening compositions therefor are disclosed effective for removing discolorations from hair which is undesirably discolored due to chemical processes and environmental exposure or natural aging to provide a substantially more natural tone. The hair brightening compositions of the invention comprise certain hair brightening activating salts and organic colorants as active brightening ingredients which surprisingly remove discoloration without imparting an unnatural tone to the hair. The inventive hair brightening compositions provide a significant improvement over conventional prior-art hydrogen peroxide-based hair brightening compositions in effectiveness, are less damaging to the hair, and more varied in their useful product forms. The invention is also directed to compositions and methods for alkali relaxing and brightening hair, especially naturally gray hair, and single-use kits comprising the inventive hair brightener compositions.

Abstract: Hair coloring compositions comprise (a) a water-soluble peroxygen oxidizing agent, (b) an organic peroxyacid precursor oxidizing aid, and (c) one or more oxidative hair coloring agents. The compositions may be used in processes for coloring human or animal hair and may be conveniently provided in kits wherein each of the aforementioned components are individually packaged.

Abstract: A composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, comprising at least one suitably selected oxidation base, at least one meta-aminophenol as first coupler and 4-hydroxyindoline and/or at least one of the addition salts thereof with an acid as second coupler, and dyeing processes using this composition with an oxidizing agent.

Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, and an end-functional polysiloxane surfactant. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature.

Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, this ready-to-use composition comprising at least one oxidation base in combination with at least one selected cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this ready-to-use composition.

Abstract: A composition for the oxidation dyeing of keratin fibers, in particular of human keratin fibers such as the hair, preferably comprising 2-n-propyl-para-phenylenediamine, in combination with at least one meta-aminophenol in a meta-amino-phenol/2-n-propyl-para-phenylenediamine molar ratio of less than or equal to 10, as well as to the dyeing process using this composition.

Abstract: Oxidation dyeing compositions for keratinous fibers which contain an oxidation enzyme derived from a strain of the genus Pyricularia, one or more dye precursors, and optionally, one or more modifiers, and methods for dyeing hair with such compositions.

Abstract: Compositions and methods for the oxidative coloring of human hair, wherein the compositions contain as a novel primary dye intermediate a 1-(4-aminophenyl)-2-pyrrolidinemethanol, or a cosmetically acceptable salt thereof. The compositions may also contain at least one other primary intermediate and conventional coupling compounds, in addition to an oxidizing agent and other components typically used in oxidative hair dye preparations. A preferred dye intermediate in the composition is 1-(4-aminophenyl)-2-pyrrolidinemethanol or cosmetically acceptable salts thereof, which produce intense black colors when used in admixture with a suitable coupling agents, such as 3-aminophenol, in conventional hair dye base formulations.

Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, comprising at least one oxidation base selected from para-phenylenediamines and bis(phenyl)alkylenediamines, in combination with at least one coupler selected from meta-diphenols, at least one selected cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this composition.

Abstract: An oxidation dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, which is characterized in that it also contains an anionic amphiphilic polymer containing at least one hydrophilic unit of an unsaturated olefinic carboxylic acid, and at least one hydrophobic unit which is a (C.sub.10 -C.sub.30)alkyl ester of unsaturated carboxylic acid, preferably exclusively of said (C.sub.10 -C.sub.30)alkyl ester of unsaturated carboxylic acid. The oxidation dye compositions are used in dyeing processes and dyeing devices.