Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.

Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.

Abstract: The present invention relates to azo dyes of the formula (1) in which R, M, and Y are defined as stated in claim 1, to dye mixtures comprising them, to processes for preparing them, and to their use.

Abstract: This application relates to laundry care compositions comprising thiophene azo carboxylate fabric shading dyes and methods of treating a textile comprising such laundry care compositions.

Abstract: Agent having at least one non-ionic component having an HLB of 8.0 or less are disclosed, as well as the combination of a blue and red substantive dye wherein the weight ratio of the blue dyes as opposed to the red dyes is 1 or greater. Further disclosed are agents for dyeing human hair blond having at least one oxidizing agent preparation and optionally a bleaching force reinforcing preparation. The agents make it possible to avoid undesired color shifts towards yellow or red nuances during blond hair dyeing.

Abstract: wherein D is a chromophore; L is a linking group selected from SO2, NHCO, and NHSO2; Q is a hydrogen or halogen atom; and R is selected from C1-C4 alkyl, (CH2)nCOOH, (CH2)nCONH2, (CH2)nSO3H, (CH2)nCOOM, (CH2)nPO3H, (CH2)nOH, (CH2)nSSO3?, (CH2)nNR12, (CH2)nN+R1H2, (CH2)nNHCOR1, PhSSO3?, PhSO3H, PhPO3H, PhNR12, PhN+R13, (CH2)2CH(SH)R1(CH2)3COOH, and n is an integer in the range of 1 to 4 wherein within the same molecule each n is not necessarily the same integer; M is a cation of an alkaline earth metal, alkali metal, NH4+ or NR13+; and R1 is C1-C4 alkyl.

Abstract: The present invention relates storage stable aqueous dye solutions comprising a) 5 to 30% by weight of a dye of the formula in which K is a residue of a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series and M is hydrogen, an alkali metal or alkaline earth metal, ammonium or alkyl ammonium, b) 0.05 to 5% by weight of one or more compounds of the formula or a residue of the formula in which A, X, Y, R, P and Q are defined herein, c) an organic or an inorganic base or mixtures thereof, d) if desired, further additives and e) water, a process for their preparation and the use thereof for the dyeing, in particular of paper.

Abstract: The invention relates to an agent for dying fibers comprising keratin, particularly human hair, the agent comprising at least one compound of the formula: together with at least one CH-acidic compound. The invention also relates to methods for shading oxidation dyed fibers, methods for freshening up fibers, methods for making an agent for dyeing fibers and to various compositions.

Abstract: The present invention provides a reactive red dye composition comprising (A) 3% to 97% by weight of a reactive azo dye of the following formula (I), wherein W, D1 and D2 are defined the same as the specification; and (B) 97% to 3% by weight of a reactive azo dye of the following formula (II), wherein R, X, Z, D3 and D4 are defined the same as the specification. The reactive red dye composition of the present invention can be utilized to dye cellulose fibers. The cellulose fibers dyed by the reactive red dye composition obtain not only good build-up and level dyeing properties but also an excellent property of white discharging.

Abstract: Reactive dyes of formula (1) wherein R1 is hydrogen or unsubstituted or substituted C1-C4alkyl, R2 is hydrogen; C1-C4alkyl; C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy; halogen; carboxy or sulfo, R3 is hydrogen; C1-C4alkyl; C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy; halogen; nitro; C2-C4alkanoylamino; ureido; carboxy or sulfo, (R4)k denotes k identical or different substituents selected from the group halogen, C1-C4-alkyl, C1-C4alkoxy, carboxy and sulfo, X is halogen and V is a radical of formula (2a), 2(b) wherein R5 is unsubstituted or substituted C1-C4alkyl, (R6)I denotes I identical or different substituents from the group C1-C4alkyl, C1-C4alkoxy and sulfo, and I is the number 0, 1 or 2, Y is vinyl or a —CH2—CH2—U radical and U is a group that is removable under alkaline conditions, Q is a —CH(HaI)-CH2-HaI or —C(HaI)=CH2 group, Hal is halogen and k is the number 0, 1 , 2 or 3, are suitable especially for dyeing cotton and yield dyeing

Abstract: The present invention discloses a reactive yellow dye composition comprising component (A) and component (B). The component (A) is a reactive azo dye represented by the following formula (I) or formula (II), The component (B) is a reactive azo dye represented by the following formula (III), wherein the substituents of the formulas (I), (II) and (III) are defined the same as in the specification. Moreover, the reactive yellow dye composition of the present invention has excellent build-up, wash-off and light fastness and can be applied with dyestuffs in other colors.

Abstract: The present invention relates to a diazo dyestuff compound of the following formula (I) wherein, M is H, Na, or Li. The formula (I) compound is particularly suitable for using as a component in a black dye composition for ink-jet printing ink, and inkjet printing inks with good light-fastness are obtained.

Abstract: A dye composition, comprising (A) at least one disazo dye selected from the formula (I) or (II), wherein R, R1, R2, D1 and D2 are defined as in the specification; and (B) a diazo dye of the formula (III), wherein (R9)0˜2, (R10)0˜2, Q1 and Q2 are defined as in the specification. These dye compositions have high fixation and good build-up. They are distinguished also by high washing off and low nylon staining and they are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or polyamide fibers, such as wool, silk, and nylon etc. Dyed materials with excellent properties can be obtained, showing especially outstanding performance in washing off, levelness, build-up, wet fastness and light fastness.

Abstract: Anionic monoazo dyes of the formula (1) in which A represents 1- or 2-naphthyl residue, which is substituted by a total of one or two sulphonic and/or carboxylic acid groups.

Abstract: A reactive dye composition having satisfactory reproducibility, leveling, washing off and toughness under balanced affinity and reactivity, and improving Right First Time success ratio, for dyeing a cellulose fiber or fiber materials containing the cellulose fiber. The reactive dye composition comprising: (a) at least one reactive red dyestuff selected from the group consisting of the following formulas, the component (a) is present in an amount ranging from 1% to 99% by weight, and (b) at least one yellow reactive dyestuff selected from the group consisting of the following Color Index: C.I. Reactive Yellow 145 and C.I. Reactive Yellow 176, and at least one blue reactive dyestuff selected from the group consisting of the following Color Index: C.I. Reactive Blue 194, C.I. Reactive Blue 221 and C.I. Reactive Blue 222, the component (b) is present in an amount ranging from 99% to 1% by weight.

Abstract: A composition of certain dyes with a category-2 hair bleach can simultaneously lighten hair up to seven levels and deposit various shades of color in a single step. The dyes are bleach-stable derivatives of azo, triarylmethane, thiazine, or nitro dyes. When linked at the ortho- and/or para-positions relative to the chromophoric centers and auxochrome groups located on or attached to the aromatic rings of these dyes, deactivating or weakly activating chemical groups enhance the dye stability in the alkaline bleach. The absence of ortho and/or para positioned deactivating or weakly-activating substituents, or the presence of strongly activating groups in these positions render the dye molecule susceptible to attack by the bleach and the eventual destruction of these dyes. These deactivating and protective chemical groups may be nitro, halogen, cyano, carboxyl, sulfonic, alkyl or aromatic groups, but not amino, hydroxy, alkoxy or alkylamide groups.

Abstract: Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g. glutaramide derivatives of direct dyes of formula (I) or their physiologically acceptable salts, are described, as well as compositions for dyeing keratinous fibers containing these pro-dyes, as well as compositions for dyeing keratinous fibers containing a combination of at least one pro-dye and at least one enzyme capable of cleaving the glutaramide functionality in the pro-dye. A method for dyeing keratinous fibers with the aforementioned dyeing compositions is also described.

Abstract: The present invention relates to novel compounds of the formulae A, D1, D2, R1 and n are as defined in the description the compounds being in an internal or external salt form, or mixtures of compounds (1) and (2), a process for their preparation and preparations containing them used for dyeing paper.

Abstract: The present invention is drawn to dye sets for formulating ink-jet ink sets, and to specific ink sets. The dye set can comprise cyan colorant including a phthalocyanine dye; magenta colorant including a copper- or nickel-containing azo dye; and yellow colorant including at least one of Yellow 1189 dye and Yellow 104 dye yellow colorant having the structure Formula 1: wherein R1 is H, SO3M, COOM, or SO2NH2; and wherein R2 is H, SO3M, COOM, or SO2NH2; and wherein R3 is H or CH3; and wherein n and m are 2, 3, 4, 5 or 6; and wherein M is H, Na, Li, K, ammonium, ammonium substituted with alkyl or combinations thereof. Optionally, a cyan triarylmethine dye such as Acid Blue 9, or another similar cyan dye, can be blended with the phthalocyanine dye; a rhodamine dye can be blended with the copper- or nickel-containing azo dye; and/or Acid Yellow 17 or Acid Yellow 23 can be blended with Formula 1.

Abstract: Described is a process for preparing concentrated solutions or suspensions of anionic organic compounds which comprises a) acidifying an aqueous solution or suspension of an anionic organic compound containing salts and/or impurities to a pH of 4.5 or less, if the pH is above this value, so that b) the anionic organic compound is water-insoluble and precipitates in the form of the free acid, c) bringing the suspension to a salt content below 2% by weight, based on the total weight of the retentate, by means of ultrafiltration with a membrane having pore diameters of from 0.001 to 0.02 ?m, and d) optionally washing out the salts with water having a pH below 4,5, e) optionally carrying out acid-free washing with water thereafter, and then f) concentrating, so that the amount of anionic organic compound is 5-50% by weight, and g) if desired, bringing the anionic organic compound into solution by adding an appropriate base.

Abstract: The present invention relates to acid-resistant solutions containing aromatic formaldehyde condensation products having sulfonate and/or carboxylate groups, aliphatic carboxylic acids, aromatic sulfonic acids, and glycol ether solvents, to the preparation thereof, and to their use as leveling agents, dispersants or fastness improvers in textile finishing, as tanning agents for leather, and in the stain resist finishing of textile materials.

Abstract: Concentrated dye compositions (P) which are solutions of y % by weight of at least one anionic dye (A) in a solution of x % by weight of benzyl alcohol (B) in water, and z % by weight of at least one formulation additive (F), in which x is a number in the range from 0.5 to 4, y is a number in the range from 5 to 35 and z is a number in the range from 0 to 2, and are essentially free from alcohols other than (B) and from solvents or solubilizers other than water and (B) are distinguished by their surprisingly good stability and can be used for any desired dyeing methods for which the respective dyes (A) themselves can be employed, be it for the dyeing of fibre material or be it, in particular, for the coloring of non-fibrous substrates.

Abstract: A modified polyamide polymer having a high amino end group content, with more than 30 percent of the amino end groups being secondary or tertiary amine, dramatically improves the dye bleed performance. The modified polyamide may be prepared by polymerization of polyamide-forming monomers in the presence of a carboxylic acid and a hindered piperidine derivative in amounts sufficient to achieve the high amino end group content.

Abstract: A composition comprising a dye of Formula (I) and a dye of Formula (II) or salts thereof, and use of the composition in ink jet printing

Abstract: Compositions containing a solvent and at least one compound of Formula (1) in which: R1 represents H, an optionally substituted C1-8carbyl derived group, or a group of Formula A: in which c is from 2 to 6; R3 represents H or optionally substituted C1-8carbyl derived group; R4 and R5 independently represent an optional substituent; R2 represents an optionally substituted C1-8carbyl derived group; X, Y and Z independently represent H or an optional substituent; M represents H or a cation; and m and n independently represent 0, 1 or 2, are useful as colorants for color filters for displays. Compounds of Formula (1) wherein at least one of R1, R2, X, Y or Z, represent SO3M or PO3M2 are also provided.

Abstract: Granular compacts (G) of a mixture of (A) at least one water-soluble dye or optical brightener, and (B) extender and, optionally, (C) at least one hydrophilic surfactant and/or (D) further additives, additionally containing (E) a dust-binding oil, are low-dust dry formulations of high bulk density which feature good dissolution, transportation and storage properties and are outstandingly suitable for the dyeing of the respective substrates.

Abstract: A modified polyamide polymer having a high amino end group content, with more than 30 percent of the amino end groups being secondary or tertiary amine, dramatically improves the dye bleed performance. The modified polyamide may be prepared by polymerization of polyamide-forming monomers in the presence of a carboxylic acid and a hindered piperidine derivative in amounts sufficient to achieve the high amino end group content.

Abstract: A composition comprising: (a) a liquid medium comprising (i), (ii) or (iii): (i) a mixture of water and an organic solvent; (ii) an organic solvent free from water; or (iii) a low melting point solid; and (b) a dye of the Formula (1) or a salt thereof:  wherein A, B, Z, L, R1 and n are as defined in the description. Also claimed are certain dyes of Formula (1), inks, an ink jet printing process using the inks, a substrate printed with the inks, an ink jet printer cartridge containing the inks and an ink jet printer containing the ink jet printer cartridge.

Abstract: New and useful low viscosity polymeric colorant formulations are provided comprising extremely low amounts of viscosity modifiers that drastically reduce the overall viscosity of the resultant colorant formulation as compared with the viscosity of the colorants themselves. In such a manner, the resultant formulation facilitates the utilization of such polymeric colorants within certain coloring processes and methods requiring low viscosity formulations while simultaneously permitting substantial retention of the same high color strength characteristics of the unmodified colorants. Such an unexpected result thus permits production and utilization of a low viscosity formulation that does not sacrifice colorability to an appreciable degree for target substrates or media. The inventive formulations thus comprise any number of polymeric colorants, (i.e.

Abstract: A composition comprising a dye of Formula (I) and a dye of Formula (II) or salts thereof, and use of the composition in ink jet printing.

Abstract: Disclosed is a process which comprises (a) preparing a first solution comprising water and an anionic dye; (b) preparing a second solution comprising water and a polyquaternary amine compound; (c) admixing the first solution and the second solution, thereby causing formation of a complex of the anionic dye and the polyquaternary amine compound and precipitation of the complex from the solution; and (d) isolating the complex thus formed.

Abstract: Monoazo dyes of formulas (III) wherein R1, R2, R3, D1 and M are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing.

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 herein provides for an improved dye composition for encapsulation in casing structures adapted for projectile motion and rupture upon contact with a target surface, such as paint balls. The dye composition adapted for use in an impact-rupturable capsule of the invention comprises a water-soluble dye and a lipophilic carrier having an oil and an emulsifier, said emulsifier comprising ethoxylated mono- and diglycerides. The invention further provides for an impact-rupturable capsule containing the dye composition. Advantages of the dye composition of the invention include improved consistency and reduced separation of ingredients; greater viscosity and thickness; greater “smearability” and splattering of dye on target surface upon impact and rupture of the casing; and greater water solubility and improved machine washability.

Abstract: Polyamide-6 articles exhibit dramatically improved dye bleed and perspiration performance characteristics, as well as reduced color change of fluorescent dyed polyamide-6. These improvements are achieved according to the present invention by modifying conventional dyeing and aftertreatment conditions. That is, conventional temperatures used for dyeing and the aftertreatment of polyamide-6 yarns are typically about 100° C. and 77° C., respectively. In contrast, the dyeing and aftertreatment procedures of this invention are carried out at about 80° C. or lower, and about 5° C. or lower, respectively. Bath ratios of between about 15:1 to about 20:1 are employed with the polyamide-6 article being retained in the bath sufficient to achieve about 75% dye uptake.

Abstract: A process for making a polyamide substrate characterized by enhanced breaking strength and fade resistance is disclosed. The process features the steps of treating a polyamide substrate, preferably a nylon 6 substrate having a hindered amine light stabilizer chemically bound thereto, with an effective amount of an ultraviolet inhibitor, an antioxidant and optionally, a dye, in the presence of a swelling agent for the polyamide that is also a solvent for the ultraviolet inhibitor and the antioxidant to impart high breaking strength to the substrate. A life preserver or other type of buoyancy device may be made from the process. A polyamide fabric comprising a dye, an ultraviolet inhibitor and an antioxidant also is disclosed. When a polyamide fiber of the present invention is exposed to sunlight, the useful life of the fiber is greatly increased compared to untreated polyamide fiber.

Abstract: The invention provides a cochineal color, a colorant product containing the cochineal color and the method of its production, wherein the cochineal color is free of allergenic proteins and contaminants derived from the raw material Coccus cacti L. insect and can be added with safety to products taken by mouth, such as foods, pharmaceutical products, etc. The invention relates to a cochineal color substantially free of proteins of molecular weight not less than 6000. The invention also relates to a process for producing a cochineal color which comprises subjecting a cochineal extract solution to proteolysis and then to at least one treatment selected from the group consisting of adsorption treatment, ton exchange treatment, acid treatment, extraction treatment and membrane treatment.

Abstract: 1

Abstract: This invention relates to a process for preparing formulations comprising dyes and/or brighteners which possess at least one free SO3H and/or COOH group, in which an aqueous suspension comprising a) dyes and/or brighteners which possess at least one free SO3H and/or COOH group and b) inorganic synthesis salts is desalinated using a microfiltration membrane having pore diameters of from 0.05 to 40 &mgr;m.

Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.

Abstract: Methods for the deep shade dyeing of melamine fiber-containing textile articles include bringing an undyed melamine fiber-containing textile article into contact with a dye bath containing a dyestuff and an acid donor at a pH of greater than about 6.0 and an elevated dyeing temperature greater than about 100° C. for a time sufficient to dye the textile article with minimal loss of melamine fibers due to acid hydrolysis. Most preferably, the textile article or articles to be dyed is placed into the dye bath at ambient temperature, and thereafter the dye bath containing the textile article or articles to be dyed is heated to the elevated dyeing temperature, for example, at a rate of between about 0.5 to about 2.0° C. per minute. Suitable dyes include non-complexed acid dyes or acid dyes complexed with a metal (e.g., iron, cobalt, copper, aluminum or any transition metal). Suitable acid donors include butyrolactones, ethylene glycol monoformates and ethylene glycol diformates.

Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibers and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.

Abstract: Amino- and/or alkoxytriazines containing at least one C.sub.1 -C.sub.10 -alkyl group which possesses a vinylsulfonyl group or a radical capable of forming a vinylsulfonyl group and may be substituted further, are used as fixation aids when using anionic dyes on hydroxyl- or nitrogen-containing organic substrates and as crosslinkers for regenerated cellulose or materials containing cellulose.

Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.

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

Abstract: A process for dying materials containing natural or synthetic polyamides is disclosed. The process includes immersing the materials to be dyed in a dye bath containing an acid dye. The pH of the dye bath is initially at a level that substantially inhibits the dye from being absorbed by the polymer. In accordance with the present invention, however, an acid producing composition is added to the bath which gradually reduces the pH of the bath and allows for uniform diffusion of the dye into the polymer. The acid producing composition of the present invention is a maleate ester, which, in one embodiment, is the reaction product of maleic acid or maleic anhydride and a glycol.

Abstract: Stain-resistant, lightfast nylon carpet is prepared by dyeing cationic-dyeable nylon fibers by applying a print paste containing an acid dye or a premetallized acid dye at a pH of from about 2.0 to about 6-5 and fixing the dye to the fibers, forming the printed nylon fibers into a carpet, applying a print paste containing an acid dye or premetallized acid dye and dyeing the nylon fibers contacted with the print pastes and thereafter heating the dyeladen fibers to fix the dye into the fibers. Stain-resistant lightfast nylon yarns are prepared by printing cationic-dyeable yarn with a premetallized acid dye at a pH of about 4.0 to less than about 6.5 then fixing the dye to the yarn.

Abstract: Melamine fibers and cellulose fiber combinations are dyed with certain dyes such that the cellulose fiber is dyed by the dyes but the melamine fiber is substantially undyed. When in fabric form, a chambray appearance is given.

Abstract: A process for preparing photochemically stable dyed nylon compositions includes providing to a dyebath a shaped article of poly(epsilon-caprolactam) hydrolytically polymerized in the presence of water, a carboxylic acid chain regulator and a hindered piperidine derivative; and in the dyebath, dyeing the shaped article with one or more metalized or nonmetalized acid dyestuffs.

Abstract: A process for the dyeing of a fibrous article utilizing closed-loop metered dosing of one or more dyes and one or more chemicals that are adjusted in real time as a function of selected monitored parameters of the dyeing bath. The process includes immersing the fibrous article in a heated liquid bath of a solvent medium for the dye wherein the bath has a predetermined pH. Acid is added to the dyeing bath to reduce the pH according to a predetermined profile that is responsive to real-time measurements of dyeing bath pH. Dye is also added to the dyeing bath during dyeing as a liquid concentrate and responsive to real-time calculations of dye uptake by the fibrous article. Dye uptake is calculated periodically by determining in real time during dyeing (1) the solution concentration of the dye in the dyeing bath and (2) the amount of the dye added to the dyeing bath, and then calculating the uptake of dye by the fibrous article therefrom.