Vat Dye Or Sulfur Dye, E.g., Quinonic Or Indigoid Reducible Dye, Sulfur Organic Compound Reaction Product Dye, Etc. Patents (Class 8/465)
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Patent number: 8840684Abstract: The invention relates to a process for dyeing and/or lightening keratin fibers such as the hair, using i) at least one cationic direct dye bearing a disulfide, thiol or protected thiol function especially of formula (I) as defined in the description and ii) water vapor. The invention also relates to the use i) of at least one cationic direct dye bearing a disulfide, thiol or protected thiol function combined with ii) water vapor, for dyeing and lightening keratin fibers, and to the use of water vapor for grafting onto keratin fibers dyes bearing a disulfide, thiol or protected thiol function. The process used and the use of thiol, protected thiol or disulfide dyes combined with water vapor makes it possible especially to obtain a long-lasting coloration on keratin fibers without the use of a reducing agent and without odor.Type: GrantFiled: December 5, 2011Date of Patent: September 23, 2014Assignee: l'orealInventor: Andrew Greaves
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Publication number: 20130326827Abstract: The invention relates to a dye method in application of a pattern formed in conformity with the art of marbling to the carpet woven with undyed (ecru) yarn. In this developed method, the object is to allow the dyes to adhere to the yarn fibers of the carpets woven with undyed yarn.Type: ApplicationFiled: November 29, 2011Publication date: December 12, 2013Applicant: Royal Hali Iplik Tekstil Mobilya Sanayi Ve Ticaret Snonim SirketiInventor: Taner Nakiboglu
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Publication number: 20130167308Abstract: The invention provides a method of printing a textile comprising polyester, or a full-chrome, semi-chrome or vegetable-tanned leather, with a vat or a sulfur dye, comprising inkjet printing a solubilised vat dye or a solubilised sulfur dye onto the textile or the leather.Type: ApplicationFiled: June 20, 2011Publication date: July 4, 2013Applicant: Heriot-Watt UniversityInventors: Roger H. Wardman, Robert M. Christie, Shah Mohammed Reduwan Billah
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Patent number: 8328880Abstract: The invention relates to a dyeing composition comprising a fluorescent disulfide dye and to a method of dyeing keratin materials, with a lightening effect, that employs said composition. It likewise relates to new fluorescent disulfide dyes and to their uses in the lightening of keratin materials. The composition allows a particularly persistent lightening effect to be obtained.Type: GrantFiled: September 14, 2011Date of Patent: December 11, 2012Assignee: L'OrealInventors: Nicolas Daubresse, Andrew Greaves, Henri Samain
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Patent number: 8075638Abstract: The invention relates to the dyeing of keratin materials using dichromophore dyes with a carbonyl or heterocyclic linker. The invention relates to a dye composition comprising a dye with a carbonyl or heterocyclic linker, and to a dyeing process with a lightening effect on keratin materials, in particular keratin fibers, especially human keratin fibers such as the hair, using said composition, optionally in the presence of a cosmetically acceptable acid or base. It similarly relates to novel dyes and to the uses thereof in lightening keratin materials. This composition makes it possible to obtain a coloring with a lightening effect which is particularly resistant and visible on dark keratin fibers.Type: GrantFiled: September 23, 2008Date of Patent: December 13, 2011Assignee: L'Oreal S.A.Inventor: Andrew Greaves
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Patent number: 8070830Abstract: The invention relates to a dye composition comprising a thiol/disulfide fluorescent dye comprising a heterocycle, and to a dyeing process which has a lightening effect on keratin materials, in particular keratin fibers, especially human keratin fibers such as the hair, using said composition. It similarly relates to novel thiol/disulfide fluorescent dyes and to uses thereof in lightening keratin materials. This composition makes it possible to obtain a particularly resistant and visible lightening effect on dark keratin fibers.Type: GrantFiled: March 23, 2007Date of Patent: December 6, 2011Assignee: L'Oreal S.A.Inventors: Andrew Greaves, Nicolas Daubresse
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Patent number: 8038732Abstract: The invention relates to a dye composition comprising a thiol/disulfide fluorescent dye comprising amino groups, and to a dyeing process which has a lightening effect on keratin materials, in particular keratin fibers, especially human keratin fibers such as the hair, using said composition. It similarly relates to novel thiol/disulfide fluorescent dyes and to uses thereof in lightening keratin materials. This composition makes it possible to obtain a particularly resistant and visible lightening effect on dark keratin fibers.Type: GrantFiled: March 23, 2007Date of Patent: October 18, 2011Assignee: L'Oreal S.A.Inventors: Andrew Greaves, Nicolas Daubresse
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Patent number: 8038731Abstract: The invention relates to a method of dyeing and lightening keratin materials in the presence of a reducing agent, comprising applying to keratin materials, a dyeing composition comprising a fluorescent disulfide dye and simultaneously applying to the keratin materials at least one reducing agent.Type: GrantFiled: March 23, 2007Date of Patent: October 18, 2011Assignee: L'Oreal S.A.Inventors: Nicolas Daubresse, Andrew Greaves, Henri Samain
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Patent number: 8025704Abstract: 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.Type: GrantFiled: February 8, 2011Date of Patent: September 27, 2011Assignee: Henkel AG & Co. KGaAInventor: Hartmut Manneck
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Patent number: 7896932Abstract: A non-oxidative hair dye composition containing the components (a) and (b): (a) one or two or more kinds of a glycylglycine derivative represented by the following formula (1) and having two or three amino acid residues or salts thereof, and wherein Y represents an amino acid residue or a bivalent group represented by the formula (2); and (b) a direct dye; Wherein symbol * and R, X, n and m are defined in the claims and in the disclosure.Type: GrantFiled: October 10, 2008Date of Patent: March 1, 2011Assignee: Kao CorporationInventors: Masaki Fukuhara, Masakazu Yamaguchi
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Patent number: 7892293Abstract: A hair dye composition containing the following components (a) and (b) and having a pH from 2 to 12 at the time of use: (a) 0.1 to 20% by mass of an aromatic sulfone compound represented by the formula (1) shown below: Wherein R's, Y, X? and Z+ are defined in the claims and in the disclosure. (b) 0.01 to 5% by mass of at least one component selected from glycylglycine, glycylglycylglycine and salts thereof.Type: GrantFiled: October 10, 2008Date of Patent: February 22, 2011Assignee: Kao CorporationInventor: Osamu Takiguchi
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Patent number: 7811335Abstract: Disclosed are composition and method for dyeing keratin-containing fibers comprising or utilizing styryl sulfide dyes of formula (1), their salts, isomers, hydrates and other solvates, wherein R1, R?1, R2, R?2, R3, R?3, W1, W?1, W2, W?2, W3, W?3, W4, W?4, Q, Q?, Y1 and Y2 are defined in claims and disclosure.Type: GrantFiled: June 7, 2006Date of Patent: October 12, 2010Assignee: Ciba Specialty Chemicals Corp.Inventors: Victor Paul Eliu, Beate Fröhling, Dominique Kauffmann
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Patent number: 7803197Abstract: Disclosed are thiol dyes of formula (1) wherein L1 is hydrogen; C1-C12alkyl; or phenyl-C1-C4alkyl; X is C1-C12alkylene, C2-C12alkenylene, C5-C10cycloalkylene, C5-C10arylene, or C5-C10arylene-C1-C10alkylene, which may by interrupted by —O—, —NH—, —S—, —CO—, o-SO2—; Y is the residue of an organic dye Z is a group of formula (1b) or —C?N; wherein A is O; S; or N-L2; B is L3; —OL3; —NL3L4; or —SL3; and L2, L3 and L4, independently from other are hydrogen; C1-C12alkyl; C5-C12aryl-C1-C12alkyl. The compounds are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.Type: GrantFiled: August 8, 2007Date of Patent: September 28, 2010Assignee: Ciba CorporationInventors: Victor Paul Eliu, Beate Fröhling, Dominique Kauffmann
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Patent number: 7771490Abstract: Disclosed are thiol dyes of formula (I), wherein R1, R2, R3, R4 and R5 independently from each other are hydrogen; unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C5-C10alkyl(C5-C10aryl); A is a residue of an organic dye; and Y1 is the direct bond; C1C10alkylene; C5-C10cycloalkylene; C5-C12arylene; or C5-C12arylene-(C1-C10alkylene). The compounds are used to dye hair with or without reducing agents. Furthermore, the present invention relates to compositions comprising thiol dyes of formula (I) and to process for the preparation of theses compounds.Type: GrantFiled: August 21, 2006Date of Patent: August 10, 2010Assignee: Ciba CorporationInventors: Victor Paul Eliu, Beate Fröhling, Dominique Kauffmann
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Patent number: 7744657Abstract: The present disclosure relates to the dyeing of keratin materials using thiol/disulfide styryl tetrahydroquinolinium fluorescent dyes. Disclosed herein is a dye composition comprising a thiol/disulfide styryl tetrahydroquinolinium fluorescent dye and a dyeing process with, for instance, a lightening effect on keratin materials such as hair, using said composition. Disclosed herein are thiol fluorescent dyes and the uses thereof in lightening keratin materials. This composition can be used to obtain a lightening effect which can be resistant and visible on dark keratin fibers.Type: GrantFiled: September 19, 2008Date of Patent: June 29, 2010Assignee: L'Oreal S.A.Inventors: Andrew Greaves, Nicolas Daubresse, Franco Manfre
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Patent number: 7731760Abstract: Disclosed are certain oxazine disulfide dyes useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.Type: GrantFiled: September 27, 2006Date of Patent: June 8, 2010Assignee: Ciba CorporationInventors: Christian Cremer, Olof Wallquist
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Patent number: 7727287Abstract: The present disclosure relates to a novel dye composition for the dyeing and/or lightening of keratin materials, such dye comprising a hemicyanin styryl chromophore thiol or disulfide dye of formula (I) or (II): the organic or mineral acid salts thereof, optical isomers and geometric isomers thereof, and the solvates thereof such as hydrates. The present disclosure further relates to a dyeing process with a lightening effect on keratin materials, in particular keratin fibers, including human keratin fibers such as the hair, using said composition. This composition makes it possible to obtain a coloring with a lightening effect which is particularly resistant and visible on dark keratin fibers.Type: GrantFiled: September 19, 2008Date of Patent: June 1, 2010Assignee: L'Oreal S.A.Inventors: Andrew Greaves, Nicolas Daubresse
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Patent number: 7717964Abstract: The disclosure relates to the dyeing of keratin materials using styryl hydroxy(cyclo)alkylamino thiol/disulfide fluorescent dyes. Disclosed herein is a dye composition comprising a styryl hydroxy(cyclo)alkylamino thiol/disulfide fluorescent dye and a dyeing process with, for example, a lightening effect on keratin materials such as hair, using said composition. Disclosed herein are novel thiol/disulfide fluorescent dyes and the uses thereof in lightening keratin materials. This composition makes it possible to obtain a lightening effect which can be resistant and visible on dark keratin fibers.Type: GrantFiled: September 19, 2008Date of Patent: May 18, 2010Assignee: L'Oreal S.A.Inventors: Nicolas Daubresse, Andrew Greaves, Franco Manfre
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Patent number: 7563289Abstract: Disclosed are thiol dyes of formula (1), wherein R1 is hydrogen; C1-C12alkyl; or phenyl-C1-C4alkyl; X is C1-C12alkylene; C2-C12alkenylene; C5-C10cycloalkylene; C5-C10arylene; or C5-C10arylene-C1-C10alkylene; Y is the residue of an organic dye which corresponds to the formula (1a), wherein R2 is hydrogen; or C1-C5alkyl; R3 is a radical of formula (1a1): (1a2); or (1a3); or R2 and R3 together with the linking carbon atom C form a 6 to 10 membered carbocyclic ring which may optionally be a condensated aromatic system and may contain one or more than one hetero atom; and R4, R5 and R6 independently form each other are hydrogen, or C1-C5alkyl; Z is H; or a thio ester group of formula (1b), wherein A is O; S; or N—R9; B is —OR7; —NR7R8, or —SR7; and A is O; S; or N—R9; B is —OR7; —NR7R8, or —SR7; and R7, R8 and R9, independently from each other are hydrogen; C1-C12alkyl C6-C12aryl; or C6-C12aryl-C1-C12alkyl. The compounds are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.Type: GrantFiled: September 27, 2006Date of Patent: July 21, 2009Assignee: Ciba CorporationInventors: Victor Paul Eliu, Beate Fröhling, Achim Bührer
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Patent number: 7550017Abstract: A nonwoven textile substrate formed from microfibers with a polyurethane matrix fully and/or partially impregnated therein, a nonazo disperse dye within microfibers, including the surface, and the matrix. The dyed fibers having an L value of about 35 or less, an ?E light fastness of about 6 or less when subjected to about 225 kilo-joules, and a long term crock of at least about 1.5.Type: GrantFiled: November 8, 2007Date of Patent: June 23, 2009Assignee: Milliken & CompanyInventors: Kaushal Gandhi, Benjamin H. Glover
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Patent number: 7513918Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azomethine dye of the general formula (I), (II), or (III) in which z is a heterocycle of the formula in which R8 is an alkyl sulfonate radical of the formula (XIII);Type: GrantFiled: April 19, 2007Date of Patent: April 7, 2009Assignee: The Procter & Gamble CompanyInventors: Cécile Pasquier, Veronique Buclin, Anita Roulin, Hans-Jürgen Braun
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Patent number: 7393366Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azo dye of the general formula (I) where R1 is an alkylsulfonate radical of the formula (II),Type: GrantFiled: January 27, 2006Date of Patent: July 1, 2008Assignee: The Procter & Gamble CompanyInventors: Cécile Pasquier, Eric Tinguely, Otto Göttel, Hans-Jürgen Braun
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Patent number: 7371700Abstract: A nonwoven textile substrate formed from microfibers with a polyurethane matrix fully and/or partially impregnated therein, a non-azo disperse dye within microfibers, including the surface, and the matrix. The dyed fibers having an L value of about 35 or less, an ?E light fastness of about 6 or less when subjected to about 225 kilo-joules, and a long term crock of at least about 1.5.Type: GrantFiled: December 14, 2004Date of Patent: May 13, 2008Assignee: Milliken & CompanyInventors: Kaushal Gandhi, Benjamin H. Glover
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Patent number: 7241318Abstract: A hair dye contains the powder of a poly-element mineral to improve the coloring and colorfastness of the hair dye.Type: GrantFiled: September 19, 2003Date of Patent: July 10, 2007Assignee: Create Co.Inventor: Kazutoshi Kaizuka
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Patent number: 7235110Abstract: A method for surface dyeing a range of textile materials, in the form of yarn, fabric, or garments, includes: a) preparing a dyebath including dye particles and an additive, such as an anionic acrylic copolymer, causing the particles to become charged; b) preparing the textile material by applying an additive, such as a cationic polyamide, forming a substrate with a charge attracting the particles, c) immersing the textile material in the dyebath; d) chemically reducing the dye particles retained on the textile material to a leuco form; and e) oxidizing the dye material.Type: GrantFiled: November 14, 2005Date of Patent: June 26, 2007Inventor: Melvin Alpert
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Patent number: 6908492Abstract: The new 7-nitro-2,1,3-benzoxadiazole compounds and 7-nitro-2,1,3-benzthiadiazole compounds of formula (I) are: Dyeing agents for keratin fibers, containing the compounds of formula (I), and methods of dyeing hair with these dyeing agents are described.Type: GrantFiled: January 7, 2004Date of Patent: June 21, 2005Assignee: Wella AktiengesellschaftInventors: Gisela Umbricht, Hans-Juergen Braun, Sylviane Oberson, Catherine Mueller
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Patent number: 6869454Abstract: The new 7-nitro-2,1,3-benzoxadiazole compounds and 7-nitro-2,1,3-benzthiadiazole compounds of formula (I) are: Dyeing agents for keratin fibers containing these compounds and methods of dyeing hair with the dyeing agents are described.Type: GrantFiled: September 5, 2003Date of Patent: March 22, 2005Assignee: Wella AktiengesellschaftInventors: Gisela Umbricht, Hans-Juergen Braun, Sylviane Oberson, Catherine Mueller
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Patent number: 6844276Abstract: A nonwoven textile substrate formed from microfibers with a polyuerthane matrix fully and/or partially impregnated therein, a nonazo disperse dye within microfibers, including the surface, and the matrix. The dyed fibers having an L value of about 35 or less, an ?E light fastness of about 6 or less when subjected to about 225 kilo-joules, and a long term crock of at least about 1.5.Type: GrantFiled: March 21, 2002Date of Patent: January 18, 2005Assignee: Milliken & CompanyInventors: Kaushal Gandhi, Benjamin H. Glover
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Publication number: 20040019983Abstract: The present invention refers to a dye mixture comprising an azo dye of the formula (I) 1Type: ApplicationFiled: July 24, 2003Publication date: February 5, 2004Applicant: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: David Brierley, Alan T. Leaver, Nigel Hall, Alan Cunningham
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Publication number: 20020038484Abstract: Disclosed are dye mixtures for shading white paper which may contain fluorescent brightener. The dye mixtures comprise a violet dye according to the formula (1) or (2) indicated in claim 1 and sufficient of a red, blue or further violet anionic azo dye that this dye mixture is capable of producing in the Cielab colour co-ordinates system a relative hue angle of 270 to 295° when the dyeing contains 0.00005 to 0.005% by weight of dye, based on the weight of the paper, with the proviso that the value 0.005% is excluded.Type: ApplicationFiled: July 11, 2001Publication date: April 4, 2002Inventors: Adolf Kaser, Wolfgang Schlenker
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Patent number: 6211293Abstract: A polyfunctional polycarbodiimide compound contains at least four molecular chains bonded independently to a backbone. Each of the molecular chains contains a carbodiimido (—N═C═N—) group. The polyfunctional carbodiimide compound can be produced by reacting (a) an isocyanate compound having at least one carbodiimido group and at least one isocyanate group with (b) a polyol, polyamine and/or aminoalcohol having at least four hydroxyl, primary amino and/or secondary amino groups in a molecule. Also disclosed are a resin composition containing the polyfunctional polycarbodiimide compound as a crosslinking agent; and a treatment method of an article, which makes use of the resin composition.Type: GrantFiled: May 21, 1999Date of Patent: April 3, 2001Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Hiroyuki Shimanaka, Yoshitaka Wakebe, Tatsuo Kawamura, Eiichi Sugawara, Ken Okura, Masayuki Takahashi, Nobuo Takezawa
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Patent number: 5851236Abstract: Aqueous, homogeneous 20 to 60% solutions (L) of mixtures of(A) copolymers of(x) (meth)acrylic acidwith (y) maleic acid or maleic acid anhydride in the molar ratio (x)/(y)=0.7/1 to 7/1, with an average molecular weight M.sub.w in the range of from 500 to 500'000, as free acids and/or sodium saltsand (B) Nitrilotriacetic acid as free acid and/or sodium salt,in which the weight ratio (A)/(B) is in the range of from 1/1 to 1/10 at least 25% of the total carboxy groups are present as sodium salt and the pH of (L) is in the range of from 5 to 11, are suitable as adjuvants for the treatment of fibrous material, in particular as scouring agents for dyeings of hydrophilic fibrous material.Type: GrantFiled: August 14, 1997Date of Patent: December 22, 1998Assignee: Clariant Finance (BVI) LimitedInventors: Bernard Danner, Francis Palacin
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Patent number: 5755827Abstract: A method for the treatment of wool so as to impart shrink resistance and which comprises treating the wool simultaneously with permonsulphuric acid, or a salt thereof, one or more scouring or wetting agents and one or more fiber swelling or dispersing agents. In a preferred embodiment, the method of treatment further comprises subjecting the wool to a polymer treatment. The method may be operated either as a continuous or as a batch process.Type: GrantFiled: June 20, 1994Date of Patent: May 26, 1998Assignee: Precision Processes TextilesInventors: Susan Bamford, John Ellis, Kenneth Michael Huddlestone
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Patent number: 5350425Abstract: A process for reducing vat dyes, such as indigo, into their leuco form by placing a metal, such as aluminum, in water in the presence of a reduction facilitator to form a first solution after which a vat dye having the general structure O.dbd.C(--C.dbd.C--).sub.N C.dbd.O where N=1, 2 or 4 is mixed with the first solution to form a dye solution where substantially all of the vat dye is reduced to its soluble leuco form having the general structure HO--C.dbd.(C--C).sub.N .dbd.C--OH. The process includes dyeing fabric in the dye solution. the reduction facilitator may be a base, for example that produced hydroxide ions in water, and the first solution as well as the dye solution can be a basic solution. The soluble leuco can be isolated from the dye solution and dissolved in a non-aqueous solution. Prior to mixing the vat dye in water, it may first be dissolved in a solvent miscible with water.Type: GrantFiled: August 9, 1993Date of Patent: September 27, 1994Inventor: David R. Carver
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Patent number: 5154728Abstract: A method for creating a design on a garment or fabric comprising preparing a patterning medium comprising a cellulose ether in a trough, adding onto the surface of said medium a fabric oxidizing or reducing agent in a desired pattern, contacting a garment or fabric with said surface of said medium for a time sufficient to permit the oxidizing or reducing agent to be transferred onto said garment and to partially oxidize or reduce the color in the garment or fabric, removing said garment or fabric from said medium, treating said garment or fabric with a neutralizing agent so as to neutralize excess oxidizing or reducing agent on said garment or fabric, and rinsing said garment or fabric with water so as to remove excess cellulose ether on said garment or fabric.Type: GrantFiled: January 29, 1992Date of Patent: October 13, 1992Assignee: Dexter Chemical CorporationInventors: Richard Craven, Brian Scism, Robert Waddell, L. Thomas Holst
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Patent number: 4719657Abstract: A tinted soft contact lens such as a hydrated hydrogel lens having a variegated iris pattern is prepared by forming an iris pattern on the lens with a viscous paste which can contain an unoxidized vat dye. The lens is treated with a developer solution to obtain a tinted lens having an iris pattern which can be clear or different in color or in hue from the surrounding iris area.Type: GrantFiled: March 27, 1986Date of Patent: January 19, 1988Assignee: Bausch & Lomb IncorporatedInventor: Rajan Bawa
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Patent number: 4705523Abstract: A process of printing a predetermined pattern on and improving the flame resistance of a poly(m-phenyleneisophthalamide)-containing textile fabric including the successive steps of: (a) applying a print paste, composed of a highly polar solvent selected from 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, a flame retardant 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 and the flame retardant molecules inside the aramid fibers.Type: GrantFiled: June 4, 1986Date of Patent: November 10, 1987Assignee: Burlington Industries, Inc.Inventor: Samir Hussamy
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Patent number: 4314811Abstract: According to two-phase processes multi-color effects are obtained on cellulosic materials, namely conversion effects with reactive and vat dyestuffs on the one hand and discharge resists prints with reactive dyestuffs and, optionally, vat dyestuffs on the other hand, by printing or padding the reactive dyestuff or a mixture of reactive and vat dyestuffs in a weakly acidic medium onto the material, overprinting this material with a neutral paste containing formamidine sulfinic acid as discharging agent and, if desired, a vat dyestuff, drying the print, contacting the material with an aqueous strongly alkaline liquor, steaming it and finishing the article in known manner, depending on the choice of dyestuffs.Type: GrantFiled: July 1, 1980Date of Patent: February 9, 1982Assignee: Hoechst AktiengesellschaftInventors: Erich Feess, Friedrich Reinhardt
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Patent number: 4314812Abstract: According to two-phase processes multi-color effects are obtained on cellulosic materials, namely conversion effects with reactive and vat dyestuffs on the one hand and discharge resist prints with reactive dyestuffs and, optionally, vat dyestuffs on the other hand, by printing or padding the reactive dyestuff or a mixture of reactive and vat dyestuffs in a weakly acidic medium onto the material, overprinting this material with a neutral paste containing a stable discharging agent of the sulfinic acid series and, if desired, a vat dyestuff, drying the print, contacting the material with an aqueous strongly alkaline liquor, steaming it and finishing the article in known manner, depending on the choice of dyestuffs.Type: GrantFiled: July 1, 1980Date of Patent: February 9, 1982Assignee: Hoechst AktiengesellschaftInventor: Erich Feess
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Patent number: 4247295Abstract: The discharge printing past contains the sodium or calcium salt of a sulfonated derivative of an N-alkylated benzylphenyl ammonium halide which acts as a sequestering and solubilizing agent for the indigo blue. It is used in conjunction with a reducing agent (or an oxidizing agent) and a bleaching agent or process resistant dye, depending on whether the print is to be white or colored. After developing in the presence of a second removing agent and a strong dispersing agent, the textile stock is washed, dried, subjected to conventional finishing treatments and again dried.Type: GrantFiled: March 26, 1980Date of Patent: January 27, 1981Assignee: Estampados Estil, S.A.Inventor: Francisco J. Patxot
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Patent number: 4244690Abstract: According to this invention, there is provided an improved method of dyeing fibrous products characterized in that, in the dyeing of fibrous products using an oxidation-reduction dyeing type dye and an aqueous alkali solution of thiourea dioxide as a reducing solution, the reduction of the dye with the said aqueous alkali solution of thiourea dioxide is carried out in the presence of one or more substances selected from the group consisting of saturated aliphatic ketones having 3 to 10 carbon atoms, saturated aliphatic ketocarboxylic acids having 3 to 10 carbon atoms and alicyclic ketones having 3 to 10 carbon atoms.Type: GrantFiled: February 15, 1979Date of Patent: January 13, 1981Assignee: Tokai Denka Kogyo Kabushiki KaishaInventors: Kanji Sato, Kazuyoshi Kushibe, Masaru Nishii, Yasuhiro Kanaya, Yasumasa Kawabe
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Patent number: 4240791Abstract: According to this invention, there is provided a method of dyeing fibrous products characterized in that, in the dyeing of fibrous products using an oxidation-reduction dyeing type dye and an aqueous alkali solution of thiourea dioxide as a reducing solution, the reduction of the dye with the said aqueous alkali solution of thiourea dioxide is carried out in the presence of one or more dialdehyde compounds selected from dialdehyde compounds represented by the general formulaOHC--R--CHO (I)in which R is a saturated or unsaturated aliphatic or aromatic organic compound radical.Type: GrantFiled: February 15, 1979Date of Patent: December 23, 1980Assignee: Tokai Denka Kogyo Kabushiki KaishaInventors: Kanji Sato, Kazuyoshi Kushibe, Masaru Nishii, Yasuhiro Kanaya, Yasumasa Kawabe
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Patent number: 4202662Abstract: The invention provides a photographic printing process which consists of impregnating a support with a photosensitive composition comprising a leuco ester of a vat dyestuff, an acid-generating substance and a catalyst, squeezing out the said support, and exposing the latter to light. The invention also provides equipment for carrying out the process continuously comprising an impregnation tank, a cylindrical irradiation drum equipped with a light source of elongated shape, a neutralization tank, a buffering tank and a rinsing tank. The said drum is equipped to receive, on its outer surface, a photographic plate and a strip of impregnated woven fabric. This process makes it possible to produce monochrome or polychrome patterns with permanent colors.Type: GrantFiled: January 26, 1978Date of Patent: May 13, 1980Inventors: Robert Boucher, Andre Foulquier-Gazagnes