Abstract: A method for coloring an article. The article is dipped into a liquid colorant to a first predetermined depth for first short period less than the 100 percent single dip saturation time. The article then is removed from the liquid colorant and dried. The article may be dipped into a liquid colorant to a second predetermined depth for a second short period, then removed and dried. The dyeing and drying steps are repeated until the article is imbued with the selected color and saturation.

Abstract: The present invention relates to a process for dyeing sheetlike textile materials with a dye, which comprises a concentrated dye system being applied in a total amount of 1% to 25% by weight, based on the textile material, to the textile material in two or more sub-steps and the dye being fixed on the textile material after each and every sub-step.

Abstract: A method of forming an image on a substrate, which comprises applying to the substrate an activatable colour forming compound wherein said activatable colour forming compound is initially unreactive but becomes reactive upon activation; activating said colour forming compound in the areas of the substrate where the image is to be formed, and, reacting the activated colour forming compound into its coloured form to produce an image. A substrate imaged using this method is also provided.

Abstract: The present invention provides for kits and methods of treating hair in order to inhibit color fading and/or impart both shine- and condition-enhancing properties to colored hair, comprising a pre-treatment composition, a color-altering composition, a developer composition, a shampoo composition, a conditioner composition, and a post-treatment composition, wherein the post-treatment composition contains at least about 5% by weight of at least one oily component, based on the total weight of the post-treatment composition.

Abstract: The present disclosure relates to a hair dyeing process comprising dyeing the hair by applying to the hair at least one dyeing composition comprising at least one dye precursor; rinsing the hair; and post-treating the hair by applying to the hair at least one aqueous composition comprising at least 30% of water and at least 20% of at least one organic silicon compound chosen from the silanes that comprise one silicon atom and the siloxanes that comprise two or three silicon atoms, wherein the least one organic silicon compound also comprises at least one basic chemical functional group and at least one hydroxyl group or hydrolysable group per molecule.

Abstract: A process for coloring and permanently shaping keratin fibers especially human hair comprising applying to the human hair: (a) an aqueous coloring composition based on at least one oxidative dye precursor and optionally at least one coupling substance but not comprising any direct dye is mixed with a composition comprising at least one oxidizing agent and applied onto hair and rinsed off from hair with water after processing 5 to 45 min at a temperature of 20 to 45° C.

Abstract: A process for coloring and permanently shaping keratin fibers especially human hair comprising applying to the human hair: (a) an aqueous coloring composition based on at least one hair direct dye and not comprising any oxidative dye precursors and/or couplers, and rinsed off from hair with water after processing 1 to 45 min at a temperature of 20 to 45° C.

Abstract: Methods for spot-dyeing a damaged area on a textile employing a selected color loss filter and utilizing at least one of a primary color dye. In one embodiment, the method can include the following: inspecting the damaged area through the selected color loss filter; determining whether a primary color is missing from the damaged area by being able to view the damaged area through the selected color loss filter to, thereby, confirm that the primary color is missing from the damaged area; and applying at least one of a primary color dye, corresponding to the selected color loss filter, to the damaged area, while viewing the damaged area through the color loss filter, until the damaged area is substantially invisible through the color loss filter.

Abstract: A dyeing apparatus and method for continuous dyeing of a fabric article with dye, the apparatus including: (a) a dyeing vessel for containing a high-density liquid; (b) a heating mechanism, thermally associated with the dyeing vessel, for heating a dye fixation zone within the vessel to a temperature above 70° C.; (c) a continuous transport mechanism for continuously transporting the fabric article, through a dye impregnation chamber, and through the dye fixation zone of the dyeing vessel, and (d) a dye-dispensing mechanism for delivering a dye liquor within the dye impregnation chamber, so as to impregnate with the dye, the fabric article passing through the chamber, and wherein the dyeing vessel is dimensioned and configured such that a height of the high-density liquid delivers a hydrostatic pressure of at least 0.1 bar gauge to the dye fixation zone, so as to effect fixation of the dye in the fabric article.

Abstract: A composition containing a saponin present in an extract of an Argania spinosa plant.

Abstract: A new method for spot dying nylon carpet requires no color theory nor use of a color wheel. The new method is distinguished from prior art methods primarily by the fact that the focus in on the hue of the spot at any given moment during the process, and that primary dye colors are applied in a sequence determined by the color of the spot. The method has been shown to work on both solid-color and multi-color nylon carpets. It is also effective for spot dyeing light-color (off-white) carpets. The method can also be employed to repair stained areas of a carpet by simply bleaching the stained area and redyeing the bleached area. Prior to the redyeing process, the area to be treated is subjected to several rinse and extract steps. A bleach neutralizer is then applied, allowed to remain on the area to be treated for about 5 minutes, then extracted without further rinsing.

Abstract: The invention relates to a ready-to-use mixture for tinting keratin fibres, especially human keratin fibres such as hair, comprising in a support material suitable for keratin materials: a) at least one laccase-type enzyme; at least one anionic surface-active agent selected from the group made up of the acylisethionates, acyltaurates, sulfosuccinates having a special structure, acylsarcosinates having a special structure, acyl glutamates, polyoxyalkylenated carboxylic acid ethers and their salts, fatty glucamide sulfates, alkyl galactoside uronates, anionic derivatives of alkyl polyglucoside, and mixtures thereof; and (c) at least one oxidation tint. The invention also relates to the hair tinting methods using the above mixture.

Abstract: The present invention is a fully automated modified batch dyeing process that provides a process that reduces water consumption, reduces environmental pollution, and reduces the energy and chemical consumption of the conventional batch dyeing process through efficient reuse of spent dyebath. The invention provides a holding tank which stores the spent dyebath, and an analysis system which allows for the analysis of the dyebath in the holding tank so that the dyebath may be reconstituted and used in the batch dyeing process.

Abstract: A new multi-step process for dyeing human hair achieving improved coverage and gentle treatment of the hair and, in addition, allowing the production of numerous hair dye shades using a relatively small number of hair dye compositions, which process consists of the following steps:a) Application of an alkaline oxidation hair dye composition comprising at least one developing substance and at least one coupling substance as well as an oxidizing agent mainly onto that part of the human hair which is next to the scalp, whereby the mixture is adjusted to the hair shade desired for the total dyeing result;b) rinsing and shampooing of the hair after completed processing of the dyeing composition;c) application of an acidic oxidation hair dye composition comprising at least one developing and at least one coupling agent as well as an oxidizing agent, to the total hair, andd) rinsing of the hair after complete processing of the hair dye.

Abstract: A process for the dyeing of a fibrous article containing wool with an anionic dye and products processed thereby. The process includes immersing the article in a dyeing bath of a liquid solvent for the anionic dye. The liquid solvent and the article are heated to a temperature at least equal to the dyeing transition temperature. At least a portion of the dye is added as a miscible liquid concentrate while the solvent and the article are up to temperature. Stirring of the bath during the dye addition period and while the solvent and article are up to temperature is done to mix the dye concentrate with the solvent to form a dilute dye solution and to provide a flow of the dilute dye solution relative to the article to cause, on the average, essentially uniform dye transport of the anionic dye to the article. The dye addition rate is adjusted so that the dye addition rate is the primary control over the rate of dye uptake by the article.

Abstract: A method for producing a dyed cotton fabric having an improved characteristic salt-and-pepper look and the product thereof. The process includes forming a plurality of individual cotton yarns having a twist multiple value of at least 4.6 and, preferably, subjecting the twisted cotton yarn to exposure to a caustic solution under tension. The yarn then is dyed under tension by exposure to a dye liquor. The treated yarn is used to produce a woven fabric, which after being abraded, has a lighter portion dispersed throughout a darker portion. In the preferred embodiment the twist multiple value of the cotton yarn threads varies within the range of between 4.6 and 10.5.

Abstract: A process for the dyeing of a fibrous article containing fibers of a polyamide polymer with at least one anionic dye. The process includes immersing the article in a liquid dyeing bath of a substantially nonaqueous solvent medium and heating to a temperature at least equal to the dyeing transition temperature of the fiber. The anionic dye is added to the dyeing bath so that the rate of dye addition is the primary control over the rate of dye uptake by the article.

Abstract: A method for dyeing nylon filaments for use in wear-indicating toothbrushes includes immersing a batch of a first nylon filament for between 10 minutes and 80 minutes in an aqueous solution containing between 0.01% and 0.19% weight to volume of Indigotine dye, said solution having a pH between 1 and 7 and having a temperature between 50.degree. C. and 90.degree. C., the dye penetrating into the filament to color an outer cross-sectional region and not penetrating into an inner cross-sectional region of the filament; removing the batch of the first nylon filament from the solution, and repeating the steps for a batch of a second nylon filament, reusing the same solution.

Abstract: A process for the dyeing of a fibrous article containing fibers of a polyamide polymer with an anionic dye and dyed products made by the process. The process includes immersing the article in a dyeing bath of a liquid solvent for the anionic dye. The liquid solvent and the article are heated to a temperature at least equal to the dyeing transition temperature of the fiber of polyamide polymer. The anionic dye is added to the dyeing bath as a miscible liquid concentrate at a dye addition rate during a controlled dye addition period. At least a portion of the dye is added while the solvent and the article are at a temperature at least equal to the dyeing transition temperature.

Abstract: Disclosed is a dyeing process for rope dyeing denim cotton yarns a fashion blue color which comprises the steps of forming the yarns into a rope; repeatedly immersing the rope in a dye bath containing a reduced water soluble form of a halogenated indigo derivative which is air oxidizable, squeezing the rope to remove dye bath liquid therefrom exposing the damp rope air to air oxidize the reduced form of the indigo derivative in the yarn; and then further oxidizing the incompletely oxidized reduced form of the indigo derivative in the yarn forming the rope in an oxidizing bath containing a chemical oxidant, e.g., sodium perborate.

Abstract: A process is described for dyeing hydrophobic fibre material with unfinished disperse dyes from an aqueous liquor, which comprises dissolving one or more such dyes in water at a temperature of 50.degree. to 150.degree. C. by means of a surfactant or surfactant mixture with a hydrotroping or solubilizing action on disperse dyes, bringing the dye solution together with the substrate in a dyeing apparatus, then heating the dyeing liquor to the dyeing temperature and completing the dyeing at that temperature and then removing the substrate and restoring the exhausted dyeing liquor to the original composition by adding water, surfactant and dye and using it again for dyeing.

Abstract: The invention relates to a process for continuous dyeing of filaments based on atactic polyvinyl chloride in the course of their production.The undrawn filaments are impregnated with a composition containing at least one plastosoluble dye while they have a density of between 1.3 and 1.4 g/cm.sup.3, are fixed continuously in the presence of steam under pressure at a temperature of between 100.degree. and 120.degree. C. for 2 to 20 seconds, are drawn in a known manner, are then fixed under tension in the presence of steam under pressure at a temperature of between 100.degree. and 130.degree. C. for 1 to 20 seconds, and are then oiled and shrunk in a known manner.Such a process permits quick dyeing, on an industrial scale, with good color fastness.

Abstract: Indigo dyed cotton yarn suitable for producing indigo dyed cotton knitwear, and method of producing it, comprising passing a cotton rope consisting of a plurality of yarn threads through a plurality of baths of indigo dyed liquor, allowing the dye to oxidize by exposure to air between each bath, and winding each of the said yarn thread separately to provide an indigo dyed yarn in a form suitable for knitting. The threads are wound onto individual spools, which may be rotated on a common shaft, or by individual motors. The indigo-dyed knitted cotton fabric produced shows the fading by abrasion, rather than washing out, normally associated with denim.