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| Number | Title | Issue Date |
| 7438753 | Diazo dyestuff compounds and their use 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 i... | 10/21/2008 |
| 7387647 | Dye composition and the use thereof 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 ... | 06/17/2008 |
| 7351808 | Anionic monoazo dyes 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. R1 represents hydrogen or C1-C4alkyl, each D1 a... | 04/01/2008 |
| 7282070 | Reactive dye composition and the use thereof 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. ... | 10/16/2007 |
| 7276085 | Methods of treating and cleaning fibers, carpet yarns and carpets Methods of enhancing stain resistance of fibers, carpet yarns and carpets are disclosed. In one aspect, the invention relates to a method of treating fiber, yarn or carpet comprising applying an aqueous treating composition to fiber, yarn or carpet, wherein the aque... | 10/02/2007 |
| 7189265 | Composition for simultaneously lightening and coloring hair utilizing bleach-stable acid and basic dyes 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 a... | 03/13/2007 |
| 7156884 | Compositions and methods for dyeing keratinous fibers 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 f... | 01/02/2007 |
| 7066969 | Dyes incorporating annionic and cationic groups 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 thei... | 06/27/2006 |
| 6991676 | Dye sets and ink sets for ink-jet ink imaging 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 inclu... | 01/31/2006 |
| 6860906 | Process for preparing solutions of anionic organic compounds 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 p... | 03/01/2005 |
| 6846336 | Acid-resistant solutions containing aromatic formaldehyde condensation products 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, a... | 01/25/2005 |
| 6797016 | Dye composition, their production and their use 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 ... | 09/28/2004 |
| 6783560 | Process for preparing wetfast polyamide fibers 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 poly... | 08/31/2004 |
| 6767394 | Dye composition 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 ... | 07/27/2004 |
| 6723835 | Azopyridone compounds, compositions and use 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: ... | 04/20/2004 |
| 6712862 | Granular compacts, their production and use 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 d... | 03/30/2004 |
| 6620208 | Wetfast polyamide fiber with high amino end group content 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 polymerizat... | 09/16/2003 |
| 6610132 | Compositions containing a liquid medium and an azo dye 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 thereo... | 08/26/2003 |
| 6605126 | Low-viscosity polymeric colorants exhibiting high color strength characteristics 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 col... | 08/12/2003 |
| 6562115 | Azo dyes and their preparation and use Monoazo dyes of formulas (III) ##STR1## 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 prepa... | 05/13/2003 |
| 6533824 | Method for restoring original color to bleached regions of nylon carpets 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 t... | 03/18/2003 |
| 6530962 | Emulsion of water soluble dyes in a lipophilic carrier 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-ruptur... | 03/11/2003 |
| 6497731 | Dyed polyamide-6 articles having improved wetfastness properties and methods of making same 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 con... | 12/24/2002 |
| 6495660 | Polyamide substrate 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 stabili... | 12/17/2002 |
| 6241786 | Process for preparing dyes and/or brightener formulations This invention relates to a process for preparing formulations comprising dyes and/or brighteners which possess at least one free SO3 H and/or COOH group, in which an aqueous suspension comprising a) dyes and/or brighteners which possess at least on... | 06/05/2001 |
| 6203578 | Use of silicon compounds to dye human keratin fibers; novel compounds and compositions containing them 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 sil... | 03/20/2001 |
| 6200355 | Methods for deep shade dyeing of textile articles containing melamine fibers 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... | 03/13/2001 |
| 6176885 | Use of silicon compounds to dye human keratin fibres; novel compounds and compositions containing them 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 sil... | 01/23/2001 |
| 6120562 | Triazine derivatives as fixers in coloring and as cross-linking agents Amino- and/or alkoxytriazines containing at least one C1 -C10 -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 usi... | 09/19/2000 |
| 6027537 | Use of silicon compounds to dye human keratin fibres; novel compounds and compositions containing them 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 sil... | 02/22/2000 |
| 6022379 | Pyrrole derivatives of 1,4-naphthoquinone and of 1,4-dihydroxynaphthalene for dyeing keratin fibers, compositions comprising the same, and dyeing process Pyrrole derivatives of 1,4-naphthoquinone and of 1,4-dihydroxynaphthalene, dye compositions containing them and the corresponding dyeing process.... | 02/08/2000 |
| 5961669 | Acid donor process for dyeing polyamide fibers and textiles 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... | 10/05/1999 |
| 5912409 | Stain resistance of nylon carpet 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 p... | 06/15/1999 |
| 5885307 | Dyeing articles composed of melamine fiber and cellulose fiber 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.... | 03/23/1999 |
| 5851238 | Photochemically stabilized polyamide compositions 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 pipe... | 12/22/1998 |
| 5846265 | Closed-loop textile dyeing process utilizing real-time metered dosing of dyes and chemicals 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 immersi... | 12/08/1998 |
| 5814107 | Photochemically stabilized polyamide compositions 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 pipe... | 09/29/1998 |
| 5662716 | Process for increasing stain-resistance of cationic-dyeable modified polyamide fibers This invention relates to an improved process for dyeing cationic-dyeable polyamide fibers, especially carpet fibers, with an acid dye to provide stain-resistant fibers. The polyamide fibers contain cationically dyeable sulfonate groups along the polymer ... | 09/02/1997 |
| 5651794 | Dyeing of cellulose Dyed cellulosic regenerated elongate members such as fibers are produced by dyeing the regenerated members with a cationic direct dye after formation but before first drying. A method of producing the dyed elongate members comprises forming a dope contain... | 07/29/1997 |
| 5626632 | Process for dyeing cationic dyeable polyamide fiber A continuous dyeing, space dyeing or printing process for dyeing cationic dyeable polyamide fibers comprising the steps of applying a premetalized acid or acid dye to the fiber at a pH of 2.5 and below, and the dyed polyamide fiber resulting therefrom. Th... | 05/06/1997 |
