Aromatic Patents (Class 8/589)
  • Patent number: 8585780
    Abstract: The present invention relates to a laundry shading process with specific blue or violet bisazo-dyes alone or in combination with a photocatalyst. Further aspects of the invention are a composition comprising at least one photocatalyst and at least one of the specific bisazo-dyes. The composition is particularly useful for shading textiles during laundry. Further aspects of the invention are a detergent composition, a fabric softener composition containing these dyes or mixtures of these dyes and photocatalysts and novel blue or violet bisazo-dyes.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Carmen Araya Hernandez, Frank Bachmann, Hans Kramer, Wolfgang Schlenker, Deepak M. Rane
  • Patent number: 7896932
    Abstract: 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: Grant
    Filed: October 10, 2008
    Date of Patent: March 1, 2011
    Assignee: Kao Corporation
    Inventors: Masaki Fukuhara, Masakazu Yamaguchi
  • Patent number: 7892293
    Abstract: 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: Grant
    Filed: October 10, 2008
    Date of Patent: February 22, 2011
    Assignee: Kao Corporation
    Inventor: Osamu Takiguchi
  • Patent number: 7632316
    Abstract: The present invention relates to dyes of the general formula (1) where M and X are each as defined in claim 1, dye mixtures comprising one or more of the dyes of the general formula (1) and also one or more further fiber-reactive dyes, processes for their preparation, their use and printing inks comprising same.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 15, 2009
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Meier, Uwe Reiher, Werner Hubert Russ, Günther Schwaiger
  • Patent number: 6911055
    Abstract: The invention concerns a method which comprises irradiating at least one face of an article with UV radiation, causing the article to be photodegraded over a thickness of at least 1 ?m and contacting the irradiated face of the article with a coloring agent, so as to diffuse the coloring agent in the entire thickness of the photodegraded surface layer of the article. The invention is useful for optical and ophthalmologic articles.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: June 28, 2005
    Assignee: Essilor International Compagnie General d'Optique
    Inventor: Gilles Baillet
  • Patent number: 6689175
    Abstract: In a preferred embodiment, the present process involves subjecting a fabric comprised of conjugate yarns to an acidic treatment, which degrades a portion of one component of the conjugate yarns and to dyeing. The acid treatment, given certain reaction kinetics, removes a portion of the polyamide element of the conjugate filament. The at least partial removal of the polyamide component results in a fabric has enhanced dyed appearance, especially when dyed a dark shade. In an alternate embodiment, the fabric may also be treated with a basic solution to improve its moisture transport properties.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: February 10, 2004
    Assignee: Milliken & Company
    Inventors: Heather J. Hayes, Crystal A. Garner, Kirkland W. Vogt, Kaushal Gandhi
  • Patent number: 6280648
    Abstract: A stain blocking composition for treating polyamide materials, such as nylon carpeting is disclosed. The stain blocking composition contains one or more novolak resins in combination with an addition polymer and a metal donor, such as a magnesium salt. The addition polymer is directed to a partially sulfonated styrene-maleic copolymer. The addition polymer not only serves as a stain blocking composition but also serves to reduce the yellowing effect sulfonated novolak resins may have on polyamide substrates. Besides containing a sulfonated novolak resin and the addition polymer, the composition of the present invention can include various other ingredients. For instance, the composition can contain an emulsifier or dispersant, antioxidants such as sodium thiocyanate or fluorocarbon repellents or mixtures thereof.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: August 28, 2001
    Assignee: Sybron Chemicals, Inc.
    Inventors: Jim Konzelman, David A. MacEwen, Robert B. Login
  • Patent number: 6066183
    Abstract: A liquid dispersed dye of the azo or anthraquinone type that includes a dispersing agent and dispersing assistant in order to keep the dye dissolved in liquid without sedimentation. The preferred dispersing agent is a sulfonated lignin salt and the preferred dispersing assistant is a surfactant such as polyethylene glycol epoxide ether (EO-1), polyethylene glycol phenolic-formaldehyde epoxide ether (EO-2), or polyethylene glycol amino methylene epoxide ether (EO-3).
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: May 23, 2000
    Assignee: I-Hwa Industrial Co., Ltd.
    Inventor: Kun-Chen Wang
  • Patent number: 5914444
    Abstract: Process for increasing the sun protection factor of cellulosic fibre materials by treating the cellulosic fibre materials with at least one direct dye and at least one UV absorber.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: June 22, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Gerhard Reinert, Francesco Fuso, Rolf Hilfiker
  • Patent number: 5900029
    Abstract: Processes for coloring a fiber or textile by adding a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: May 4, 1999
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Robert M. Amici, Collin P. Galloway
  • Patent number: 5879411
    Abstract: A non-oxidative dye composition for keratin fibers contains an o-benzoquinone compound of formula (I): ##STR1## wherein R1, R2, R3 and R4 are each, independently of each other, hydrogen, chlorine, an alkyl group with from 1 to 5 carbon atoms, an alkoxy group with from 1 to 5 carbon atoms, an alkylenedioxy group with from 1 to 2 carbon atoms or an amino group --NR.sup.5 R.sup.6, wherein R.sup.5 and R.sup.6 are each, independently of each other, hydrogen, an alkyl group having from 1 to 6 carbon atoms or an aryl group; and at least one amino- or hydroxy-compound of formula (II), X--A--Y, wherein X represents a nitro group, a cyano group or a sulfonate group; Y represents a hydroxy group or an amino group --NR.sup.a R.sup.b, wherein R.sup.a and R.sup.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: March 9, 1999
    Assignee: Wella AG
    Inventors: Hans-Juergen Braun, Gisela Umbricht
  • Patent number: 5855623
    Abstract: Methods are provided for treating polyester, polyamide, acrylic, aramid or cellulosic substrates to improve the uniformity of dyeing and to improve the hydrophilic, soil-release, odor-, mildew-, bacterial- and fungal- resistant properties of these substrates.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: January 5, 1999
    Assignee: Intera Technologies, Inc.
    Inventors: Larry L. English, Ted A. Mallen
  • Patent number: 5772696
    Abstract: An invention is disclosed which pertains to a method for purifying water soluble dyes, such as quinoline, fluoran, and xanthene dyes. The method comprises the steps of A) adding a metal salt to the water soluble dye to form a water insoluble dye salt of the metal; B) isolating the water insoluble dye salt of step A; C) converting the water insoluble dye salt of step B into a water soluble dye solution; and D) isolating the water soluble dye from the solution of step C. The present invention teaches a straight forward, economical, and environmentally sound method for purifying water soluble dyes of FDA certifiable purity and with an aesthetically improved shade.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 30, 1998
    Assignee: Warner-Jenkinson Company, Inc.
    Inventor: Puthalath Koroth Sujeeth
  • Patent number: 5762650
    Abstract: A composition and a process are disclosed for imparting durable antimicrobial properties to fibrous materials. The composition contains a leveling surfactant and a water-insoluble antimicrobial compound. In one embodiment, simultaneous dyeing and antimicrobial finishing of a fibrous material is achieved using an aqueous dye bath containing the aforesaid composition.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: June 9, 1998
    Assignee: Olin Corporation
    Inventors: Murray A. Ruggiero, Phil Magan, Thomas Edgar Robitaille, Robert P. Roth, James J. Irovando
  • Patent number: 5759431
    Abstract: A direct application process by spray, pad, foam, flood or roller coating of a chemical composition of Novolak resin, polymethacrylic acid, sulphated or sulphonated surfactants and a fluorochemical to provide stain resistance/release to fibrous material, particularly nylon and wool carpets. The finish offers desirable oil, water and dry soil repellency and acid dye stain release without adverse effect on texture (handle) and pile opening. The invention relates to the use of diethanolamine lauryl sulfate as a foaming surfactant that also has stain release property against artificial coloring material commonly found in food and beverages.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: June 2, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Van Giao Nguyen
  • Patent number: 5593459
    Abstract: Cationic dyes and protonated disperse and solvent dyes are solubilized by an excess (over molar equivalence) of an anionic surfactant to form dye baths and inks for paper. These materials are suitable for the dyeing and printing of cationic dye receptive materials inclusive of silk, wool, nylon, triacetate, vinyl, and cationic dye receptive acrylic, polyester, and polyolefins with water-fast cationic and disperse or solvent dyes. Baths of the solubilized solvent and disperse dyes may be partially neutralized and are suitable for dyeing polyester and other hydrophobic fibers thus eliminating the need for forming dispersions with disperse dyes.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: January 14, 1997
    Inventor: Rodger L. Gamblin
  • Patent number: 5554199
    Abstract: Dyeing of cellulosic substrates with reactive dyes in the presence of at least 20 g/l of sodium chloride, employing auxiliaries (E) of levelling activity, which are methylene-bridge-containing and sulpho-group-containing aromatic compounds, obtainable by condensation of defined sulphonation products with formaldehyde resp. formaldehyde-yielding compounds and optionally salt formation; (E)-contaning compositions that further contain at least one hydrotrope (H) and/or at least one sequestering agent (Q); and novel condensation products.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: September 10, 1996
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5540740
    Abstract: A low temperature microemulsion dyeing process for polyester fibers includes the steps of microemulsifying a swelling agent in water to form a continuous microemulsion solution, adding dyestuff and a dye solubility assistant agent selected from the group of short chain alcohols, dyeing polyester fibers at room temperature for 1-3 hours, washing the polyester fibers with a nonionic washing agent and thereafter drying the dyed polyester fibers.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: July 30, 1996
    Assignee: China Textile Institute
    Inventors: Shin-Chuan Yao, Jongfu Wu, Tsung-Wun Tsai, A-Fen Huang
  • Patent number: 5534166
    Abstract: Condensates of arenesulfonic acids and formaldehyde are prepared by sulfonating arenes obtainable by thermal cracking of a naphthenic residue oil and fractional distillation of the cracked products of the fraction obtained at 100-120.degree. C. under atmospheric pressure, sulfonating this aromatics fraction with oleum at 120.degree.-160.degree. C. using an amount of from 0.7 to 1.2 parts by weight of oleum having an SO.sub.3 content of 24% by weight per part by weight of aromatics fraction, and subsequently condensing the arenesulfonic acids with formaldehyde in a conventional manner, and are used as dispersants, in particular for preparing dye formulations.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: July 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralf Brueckmann, Johannes P. Dix, Rolf Fikentscher, Manfred Herrmann, Norbert Zimmermann
  • Patent number: 5516337
    Abstract: Method for imparting stain resistance to fibers, especially wool, which is adaptable to current wool processing methods. Steps comprise:A. treating fibers with a mordant;B. treatment with a combination of sulfonated or disulphonated surfactant together with a stain resist (e.g., syntan); andC. providing treatment with a fluorochemical in either step A. or B. in an amount sufficient to improve stain resistant properties. The improved method may be undertaken in the liquor remaining in a dye bath after dyeing fiber (spent bath process). Process pH is acid. Advantage: lowers the proportion of stain resist chemical to wool necessary to impart stain resistance. Tip sealing, using polymethacrylic resin and fluorochemical, may be an added step.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: May 14, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Van G. Nguyen
  • Patent number: 5478361
    Abstract: The invention provides the following dyeing method: A method of dyeing a cellulosic textile article characterized by immersing the article in an aqueous dispersion containing a cation-treated coloring agent in the first place and, then, immersing it in an aqueous solution or dispersion of an anionic compound.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: December 26, 1995
    Assignee: Sakura Color Products Corporation
    Inventors: Masaaki Sumii, Yasuyuki Yoshimura
  • Patent number: 5470355
    Abstract: Compounds of formula I ##STR1## in which R.sub.1 is isooctyl, nonyl or dodecyl, R.sub.2 is H or --SO.sub.3 R.sub.6, R.sub.3 (A--O).sub.m R.sub.5 where each A, independently, is --C.sub.2 H.sub.4 --, --C.sub.3 H.sub.6 -- or --C.sub.4 H.sub.8 --, R.sub.4 is (B--O).sub.n R.sub.5 where each B, independently, is --C.sub.2 H.sub.4 --, --C.sub.3 H.sub.6 -- or --C.sub.4 H.sub.8 --, R.sub.5 is H or --SO.sub.3 R.sub.6, provided that at least one R.sub.5 is --SO.sub.3 R.sub.6, R.sub.6 is H, an alkali metal, an equivalent of an alkaline earth metal or optionally substituted ammonium, m is 1, 2 or 3 and n is 0, 1 or 2, provided that m+n is at most 4, when n=0 then R.sub.5 is H and m=1, when only one group R.sub.5 is --SO.sub.3 R.sub.6 and n=1 or 2 then both R.sub.2 's are H,are useful as emulsifying and dispersing agents, especially as dyeing or printing assistants for dyeing or printing a substrate dyeable with anionic or disperse dyes.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 28, 1995
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5451238
    Abstract: The present invention relates to an acid dye-leveling composition that is useful for imparting a dye-leveling characteristic to fibers, as well as acting as a cleaner for hard surfaces or for fibers. The composition comprises (a) the reaction product of a piperazine compound, a piperazinone compound, an amine compound, or a combination thereof, with an alkyl diphenyl ether sulfonic acid, and (b) an alcohol alkoxylate.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: September 19, 1995
    Assignee: Olin Corporation
    Inventors: Murray A. Ruggiero, Robert P. Roth, Joseph T. Farrell, A. R. Vanover
  • Patent number: 5427589
    Abstract: A method for dyeing fibrous material is provided. The method includes contacting a fibrous material with a dyebath comprising a mixture of a dye assistant and a dye soluble or dispersed with dye assistant in the dyebath. The dye assistant comprises a salt of a low molecular weight aromatic sulfonic acid, and can include a low molecular weight surfactant. The dye assistant of the present invention can be advantageously utilized for dyeing difficult to dye fibers such as aromatic polyamide fibers, polybenzimidazole fibers and aromatic polyimide fibers.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: June 27, 1995
    Assignee: Springs Industries, Inc.
    Inventors: John R. Holsten, Moses Smith, Jr.
  • Patent number: 5376145
    Abstract: A method of processing a textile material consisting wholly or partly of keratinous fibres, characterised in that the material is treated with an aqueous composition containing at least one compound which possesses one or more ethylenic double bonds activated by two adjacent carbonyl groups. Preferred compounds include fumaric acid or maleic acid, optionally substituted with one or two halo and/or alkyl groups; or a salt, ester or amide of any said acid; or an N-substituted maleimide, optionally substituted with one or two halo and/or alkyl groups.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: December 27, 1994
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: Peter R. Brady, Peter G. Cookson, Keith W. Fincher, John R. Cook
  • Patent number: 5250079
    Abstract: A process for the treatment of fibrous material from aqueous medium in the presence of an application assistant (P) comprising components (a) and (b), in particular for nitrogen-containing substrates; the compositions (P), (P.sub.1) and (P.sub.2) and compositions comprising (P) and anionic dye or optical brightener.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: October 5, 1993
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5240465
    Abstract: A process for applying a reactive dye to a cellulosic substrate comprising:(a) adding one or more dyeing assistants selected from the condensation product of sulphonated diphenyl ethers, condensation product of sulphonated ditolyl ethers, condensation products of polydiphenylsulphones with formaldehyde and condensation products of polyditolyl sulphones with formaldehyde (and salts thereof) into an aqueous liquor, optionally together with a salt (hereinafter defined as Process Step a);(b) introducing the substrate into the dyebath and adding one or more reactive dyes, (hereinafter defined as Process Step b) ; and(c) fixing the dyestuff onto the substrate (hereinafter defined as Process Step c).
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: August 31, 1993
    Assignee: Sandoz Ltd.
    Inventor: Francis Palacin
  • Patent number: 5207802
    Abstract: Compounds and mixtures of compounds obtainable by condensation of sulphonation products of defined alkyl-substituted naphthalenes and sulphonation products of optionally alkyl-substituted diphenylethers with formaldehye and optionally treated with further components, are valuable interface-active compounds suitable as assistants in various application fields, in particular as dispersing or levelling agents in the dyeing with disperse dyes or as tanning-assistants or dyeing-assistants for leather.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: May 4, 1993
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5186846
    Abstract: Dispersants of increased bioeliminability or biodegradability for use in dye and pigment preparations, as tanning aids, in plastics production and in crop protection formulations contain from 3 to 50% by weight of one or more aromatic or long-chain aliphatic carboxylic acids, salts thereof or anhydrides thereof or a mixture thereof.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: February 16, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralf Brueckmann, Willi Bury, Johannes P. Dix, Manfred Herrmann, Waldemar Dlugosch, Erich Kromm, Herbert Letter, Norbert Zimmermann, Wolf-Dieter Kermer, Klaus Taeger
  • Patent number: 5145487
    Abstract: This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning. The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate. Also various dispersing agents, buffering acids and sequestering agents are disclosed.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: September 8, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Dale A. Hangey, Paul W. Harris, Charles J. Cole, Daniel J. Corcoran, Jr.
  • Patent number: 5116410
    Abstract: In one form, the invention is a washable dye-containing composition comprising an acid dye, a dye vehicle, and an organic sulfonate in an amount of at least about 10% by weight of the composition. More specifically, the invention is, in one preferred embodiment, a washable marker ink, comprising an acid dye, water, and an aromatic sulfonate in an amount of at least about 10% by weight of the composition. In another embodiment, the composition of the invention is in the form of a water-soluble tempera paint comprising an acid dye, water, fillers, thickeners, opacifiers, and an organic sulfonate in an amount of at least about 10% by weight of the composition. Other water-soluble dye-containing compositions having enhanced skin and fabric fugitivity are within the scope of the invention as well.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: May 26, 1992
    Assignee: Binney & Smith Inc.
    Inventor: Richard E. Miller
  • Patent number: 5104415
    Abstract: Aqueous dye formations which comprise:a) at least one water-insoluble or sparingly water-soluble dye,b) at least one sulfated polyadduct of an alkylphenol containing 2 to 12 carbon atoms in the alkyl moiety with at least 20 mol of ethylene oxide or a sulfated polyadduct of a fatty alcohol with at least 20 mol of ethylene oxide,and, as additional optional components,c) a betain monohydrate, andd) an anionic dispersant of the general formula I ##STR1## wherein X is a direct bond or oxygen,A is hydrogen or the radical of an aromatic compound which is attached through a ring carbon atom to the methylene group,n and p are each independently of the other a value from 1 to 4, andM is a monovalent cation, and/or condensates of these compounds with formaldehyde, as well ase) further optional auxiliaries andf) water.Such formulations have very good storage stability in the temperature range from -10.degree. C. to +50.degree. C. and, in particular, have very good redispersibility after drying in the air.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: April 14, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Zdenek Koci
  • Patent number: 5096456
    Abstract: A process for improving the thermal and/or photochemical stability of dyeings on polyamide fibres by applying to said fibres, from an aqueous medium, water-soluble phenolic antioxidants of formula (A--Y--).sub.n Z(--W).sub.m, wherein A, Y, Z, W, m and n are as defined in claim 1.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Francesco Fuso
  • Patent number: 5074887
    Abstract: Aqueous dye preparations are described which contain 15-40% by weight of dyes, 3-18% by weight of an anionic dispersant of the formula (1), 1-10% by weight of sodium lactate, 1-10% by weight of glycerol and/or propylene glycol, 0.1-5% by weight of a compound having monomer units of the general formula (2), 3-10% by weight of betaine monohydrate, 0-4% by weight of a compound having monomer units of the general formula (3) and 0.1-15% by weight of customary auxiliaries; preparations of this type have a long shelf life, are highly redispersible and do not form sediments; they are suitable in particular for the continuous dyeing of polyester textile materials or mixtures thereof with cellulose textile materials.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: December 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Zdenek Koci
  • Patent number: 5074885
    Abstract: A process for the dyeing of wool with anionic dyes is described, wherein the wool is dyed in the presence of a UV absorber and bleached oxidatively and then bleached reductively in a new bath.This process makes it possible to produce very bright, brilliant shades.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: December 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Gerhard Reinert
  • Patent number: 5066309
    Abstract: Concentrated, aqueous preparations of 1:2 metal complex dyes which contain 10 to 30% by weight of a 1:2 metal complex dye, 3 to 25% by weight of an anionic dispersant, 1 to 15% by weight of a polyhydroxy compound and 0 to 25% by weight of a customary formulation assistant, in each case based on the total preparation, and water in an amount such that the sum of all the components is 100%, have an excellent stability, are readily pourable and can be diluted with water as desired, and are therefore particularly suitable for the preparation of dyebaths or printing pastes which are employed, in particular, for continuous dyeing or printing of textile fibrous materials of synthetic polyamide.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: November 19, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Ernst Tempel, Pia Grimbu/ hler-Can
  • Patent number: 5015262
    Abstract: Cloth is dyed using a reactive dye, an alkaline substance and a leveling agent. The leveling agent is one or more substances selected from the group consisting of phospholipids obtained from animals or plants, compounds having the formula I and compounds having the formula II: ##STR1## wherein R.sub.1 and R.sub.3 each denotes alkyl, alkenyl, hydroxyalkyl, or M, with the proviso that both of R.sub.1 and R.sub.3 are not M simultaneously; R.sub.2 denotes alkylene having 2 to 4 carbon atoms; 1 and m each denote 0 or an integer of at least 1; and M denotes alkali metal or hydrogen, ##STR2## wherein R.sub.4 denotes alkyl, alkenyl, hydroxyalkyl, straight chain, hydroxy-substituted alkenyloxy or branched chain, hydroxy-substituted alkenyloxy; X and Y each denote hydrogen, alkoxy, alkyl, or ##STR3## wherein M denotes alkali metal or hydrogen; and n denotes an integer of at least 1.
    Type: Grant
    Filed: December 26, 1988
    Date of Patent: May 14, 1991
    Assignee: Nihon Surfactant Kogyo K.K.
    Inventors: Noriaki Ohba, Yujin Tabata, Tateyuki Nagatomi
  • Patent number: 5009669
    Abstract: Aqueous stable dispersion of UV-absorbing 2-(2'-hydroxyphenyl)benzotriazole compounds containing(a) 15 to 50 per cent by weight of a benzotriazole compound of the formula ##STR1## where R is halogen, C.sub.1 -C.sub.12 alkyl, lower alkoxy, lower alkoxycarbonyl, cycloalkyl, aryl, C.sub.1 -C.sub.12 alkylaryl or aralkyl, and the rings A and B can be further substituted independently of one another by halogen, hydroxyl, lower alkyl, lower alkoxy or lower alkoxycarbonyl, and(b) 2 to 20 per cent by weight of an acid ester, or salt thereof, of an alkylene oxide adduct of the formula ##STR2## where X is the acid radical of an inorganic oxygen-containing acid, or else the radical of an organic acid and Y is C.sub.1 -C.sub.12 alkyl, aryl or aralkyl, "Alkylen" is the ethylene radical or propylene radical, and m is from 1 to 4 and n from 4 to 50.These dispersions are excellent agents for improving the light fastness of dyeings of synthetic fibres, in particular polyester fibres or acid-modified polyester fibres.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: April 23, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Martin Jollenbeck, Hans-Ulrich Berendt, Werner Fringeli
  • Patent number: 5009668
    Abstract: Mixture of dyeing assistants containing(A) an acid ester, or salts thereof, of an alkylene oxide adduct of the formula ##STR1## in which V is hydrogen or methyl, X is the acid radical of an inorganic acid containing oxygen, or the radical of an organic acid and Y is C.sub.1 -C.sub.12 alkyl, aryl or aralkyl, "alkylene" is the ethylene or propylene radical and m is 1 to 3, m.sub.1 is 1 or 2 and n is 4 to 50,(B) a nonionic surfactant containing polyglycol ether groups, and(C) an aliphatic or aromatic carboxylic acid ester, an alkylbenzene, tetralin or a mixture of these substances.The mixture of assistants is employed in the dyeing of synthetic fibre materials, in particular textile material containing polyester fibres, for increasing the rate of migration of disperse dyes.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: April 23, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Ulrich Berendt, Rosemarie Topfl
  • Patent number: 5000756
    Abstract: The invention relates to a process for dyeing cellulosic fibre materials with reactive dyes by the pad dyeing process in the process of an assistant, which process comprises the use of a mixture containing(a) at least one reactive dye of formula ##STR1## wherein Pc, W, k, R.sub.1, R.sub.2, B and R are as defined in claim 1, and(b) at least one colorless compound which contains at least one --SO.sub.2 --Z group, wherein Z is as defined in claim 1.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: March 19, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Aeschlimann
  • Patent number: 4985041
    Abstract: Compositions for use as dye assistants are formed from a non-phenolic aromatic swelling agent for the fiber to be dyed mixed with just enough dispersant to cause a non-foaming emulsion upon dilution of the dye assistant in water, but not enough dispersant to interfere with the swelling process of the fiber by the dye assistant. Thus, the swelling agent is mixed with the minimum amount of surfactant required for the production of an emulsion and dispersion of the dye with little or no foaming in the dye bath. Formulations can also be prepared having higher levels of water which are non-flammable.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 15, 1991
    Inventor: Ralph Matalon
  • Patent number: 4976743
    Abstract: Fiber articles are uniformly dyed with use of a dyeing auxiliary composition which comprises an anionic surfactant of the alpha-hydroxysulfonic acid type and an organic polybasic polymer and has a pH of 9 or higher.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: December 11, 1990
    Assignee: Nihon Surfactant Kogyo K.K.
    Inventors: Noriaki Ohba, Yujin Tabata, Masaaki Nagatsuka, Tateyuki Nagatomi, Helmut Klicker
  • Patent number: 4950304
    Abstract: There is disclosed a process for quenching or suppressing the fluorescence of natural or synthetic polyamide substrates treated, or to be treated, with fluorescent whitening agents, which process comprises applying to said substrates, before or after the treatment with the fluorescent whitening agent, a sulfonated UV absorber of formula ##STR1## wherein X, R.sub.1, R.sub.2 and R.sub.3 are as defined in claim 1, and fixing said UV absorber thereon.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: August 21, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Kurt Burdeska
  • Patent number: 4943299
    Abstract: Levelling agents containingI. ethers of the general formula ##STR1## in which R.sub.1 denotes alkyl, alkenyl, cycloalkyl, aryl or aralkyl,R.sub.2 denotes hydrogen or methyl,x denotes 1, 2 or 3 andy denotes 0 to 7, andII. emulsifiers and, if desired,III. carriers for the dyeing of polyesters are used for the high-temperature dyeing of polyester fibres and polyester-containing materials.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: July 24, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Schulze, Klaus Walz, Frank Bartkowiak, Karlhans Jakobs
  • Patent number: 4923481
    Abstract: Aqueous dispersion of a sulfonated metallizable dye containing(a) based on the total weight at least 10% of the sulfonated metallizable dye and(b) a sulfonated condensation product obtained by reacting an aromatic compound having at least two replaceable ring-positioned hydrogen atoms in any desired order with a compound of the formula ##STR1## in which X is a direct bond or oxygen, Hal is chlorine or bromine and n is 1 to 4, and sulfonation.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: May 8, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Roberto Galli, Ernst Tempel
  • Patent number: 4906248
    Abstract: Cellulose fibers can be effectively dyed with an assistant composition comprising (a) a polymer or copolymer of maleic acid, acrylic acid, methacylic acid or a salt thereof and (b) a sulfonate of a monocyclic or polycyclic aromatic compound or a condensate thereof with an aliphatic aldehyde.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: March 6, 1990
    Assignee: Kao Corporation
    Inventors: Naoki Kyochika, Shigeru Nagao
  • Patent number: 4877538
    Abstract: This invention relates to a new process and group of products that are useful in preventing nylon and wool fibers, including carpeting and upholstery, from being permanently stained. Fibers can be permanently stained by food colors contained in food spilled on the fiber. This new group of sulfomethylated phenol-formaldehyde or naphthol-formaldehyde and anionic surfactant compounds not only block the stain from the fiber but also minimize any yellowing or discoloration of the treated fibers during the application and during the subsequent exposure to sunlight or commonly used lightfastness testing equipment.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: October 31, 1989
    Assignee: Crompton & Knowles Corporation
    Inventors: Alexander S. Kirjanov, Michel A. Herlant
  • Patent number: 4865885
    Abstract: This invention relates to a new process and group of products that are useful in preventing nylon and wool fibers, including carpeting and upholstery, from being permanently stained. Fibers can be permanently stained by food colors contained in foods spilled on the fiber. This new group of sulfonated phenol-formaldehyde or naphthol-formaldehyde and anionic surfactant compounds not only block the stain from the fiber but also minimizes any yellowing or discoloration of the treated fibers during the application and during the subsequent exposure to sunlight or commonly used lightfastness testing equipment.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: September 12, 1989
    Assignee: Crompton & Knowles Corporation
    Inventors: Michel A. Herlant, Alexander S. Kirjanov, Vincent W. Bannigan, Jr.
  • Patent number: 4813971
    Abstract: Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Sigismund Heimann, Michele Vescia, Attila Bereck, Hermann Sulz, Ingrid Steenken
  • Patent number: 4800118
    Abstract: A light stabile composition for imparting stain resistance to polyamide fiber-containing textile articles (e.g. nylon, wool or silk carpets) comprises a halogenated (e.g. brominated or chlorinated) aryl group-containing product of the condensation polymerization of a hydroxyaryl sulfonic acid (e.g., para-hydroxyphenyl sulfonic acid), a dihydroxydiaryl sulfone (e.g., dihydroxydiphenyl sulfone) and an aldehyde (e.g., formaldehyde). The polyamide fiber-containing textile articles are converted to a stain resistant product by containing the fibers with an acidified aqueous solution of the aforesaid composition.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: January 24, 1989
    Assignee: West Point Pepperell
    Inventors: John W. Reed, Richard D. Smith