Dye Concentrate Composition Wherein An Additional Amount Of A Constituent Of The Composition Must Be Added Before Use Patents (Class 8/527)
  • Patent number: 4711642
    Abstract: Liquid water-containing concentrated reactive dye-stuff preparations of monofluorotriazinyl reactive dye-stuffs with a pH value of at least 8, preferably 8.5-10, are stable on storage and display no noticeable hydrolysis, even after prolonged storage.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: December 8, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Karlheinz Wolf
  • Patent number: 4708719
    Abstract: A disperse dye concentrate for use in non-aqueous solvent systems, employing a disperse dye, comprises 10-95% by weight of dry disperse dye, free of water-soluble dispersing agents, admixed with one or more of:(A) a cycloaliphatic diester of the formula ##STR1## wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 --, HO(C.sub.3 H.sub.6 O).sub.n C.sub.3 H.sub.6 --, HO(CH.sub.2 CH.sub.2).sub.p (C.sub.3 H.sub.6 O).sub.q C.sub.3 H.sub.6 -- or HO(C.sub.3 H.sub.6 O).sub.p (CH.sub.2 CH.sub.2 O).sub.q CH.sub.2 CH.sub.2 -- or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p+q is n;(B) a high boiling aromatic ester of the formulaArCOOR.sub.2 IIor ArCOO--R.sub.1 --OOCAr IIIwherein R.sub.1 is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula --C.sub.r H.sub.2r (OC.sub.r H.sub.2r).sub.s --, in which r is 2 or 3 and s is 1 to 15; R.sub.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: November 24, 1987
    Assignee: Crucible Chemical Company
    Inventors: Robert B. Wilson, William F. Pomeroy
  • Patent number: 4705524
    Abstract: The invention relates to dye compositions for preparing level dyeings on carboxamide- or hydroxyl-containing fiber materials of comparatively good light fastness properties, which contain dioxazine dyes I (Ia and/or Ib) and II (one or more of IIa to IId) in a weight ratio of 90:10 to 10:90 ##STR1## where in each case independently of one another Z denotes vinyl or .beta.-sulfatoethyl,Z' denotes vinyl-SO.sub.2 or .beta.-sulfatoethyl-SO.sub.2 --,R denotes sulfo or --SO.sub.2 --NR.sup.8 R.sup.9, wherein R.sup.8 is H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl and R.sup.9 is H, C.sub.1 -C.sub.4 -alkyl which can be substituted by sulfato, sulfo, carboxyl or phosphato, or is an arylated C.sub.1 -C.sub.4 -alkyl group which can be substituted in the aryl radical by sulfo or carboxyl,R.sup.1 denotes H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,R.sup.2 denotes C.sub.1 -C.sub.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: November 10, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Hahnke, Marcos Segal
  • Patent number: 4702744
    Abstract: Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: October 27, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Jochen Koll, Karlheinz Wolf, Reinhold M. Klipper, Peter M. Lange
  • Patent number: 4702743
    Abstract: A liquid dye preparation comprising an aqueous solution containing at least 0.5% by weight of a water-soluble anionic dye and at least 0.1% by weight of a surfactant of the formula: ##STR1## wherein R represents a non-ionic substituent,m represents an integer from 0 to 3,X represents a divalent bridging atom or group,Y represents a C.sub.2-4 alkylene radical,n represents an integer of at least 2, andZ represents hydrogen, akyl, sulpho or phosphino.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: October 27, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventors: Patrick O'Callaghan, Henry R. Murton
  • Patent number: 4693725
    Abstract: An aqueous liquid dye composition improved in storage stability, which comprises a bifunctional reactive dye of the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfonic acid group, R.sub.1 and R.sub.2 are independently a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an substituted or substituted phenylene or naphthylene group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a splittable group by an alkali, in an amount of 5 to 50% by weight based on the weight of the liquid dye composition, the liquid dye composition having a pH value of from 3 to 7.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: September 15, 1987
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noriaki Yamauchi, Shinnei Ikeou, Kunihiko Imada
  • Patent number: 4689048
    Abstract: A process for the preparation of formulations of water-soluble organic dyes starting from an aqueous salt-containing suspension of the untreated dye and using membrane separation methods, which process comprises substantially freeing the aqueous suspension of the untreated dye from by-products and reducing the salt concentration by more than half in a first membrane separation treatment, then diluting the dye suspension in a further optional step and effecting deionization and concentration in a second membrane separation treatment and converting the concentrate so obtained into a liquid or solid commercial formulation. This multi-step membrane separation process, e.g. ultrafiltration combined with hyperfiltration, results in a high rate of permeation through the membrane and avoids operating problems caused by membrane clogging.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: August 25, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Fortsch, Alberto Rabassa, Beat Bruttel
  • Patent number: 4685933
    Abstract: Concentrated aqueous solutions of dyestuffs having water-solubilizing groups which contain cyanamides of the formula ##STR1## wherein R.sub.1 =NHCN, NHCONH.sub.2 or NHCONHCH.sub.3 where n=0 andm=1 or n=1 and m=0,have a long shelf life, in particular also in the case of reactive dyestuffs.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: August 11, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Karlheinz Wolf, Werner Marschner
  • Patent number: 4673410
    Abstract: The present disclosure is concerned with enhancing the solubility of dispersed anionic dyes upon the dilution of their dispersions with room temperature water. Concentrated dispersions of such dyes with acceptable stability and low shear viscosities are disclosed which are more readily diluted to dissolve the dispersed dyestuff because they contain certain chelating agents are described. These agents have at least one free or appropriately neutralized acid group, with carboxylic acid groups being preferred. The appropriae cations include ammonium or lithium ions. The free acid groups are subsequently neutralized with these appropriae cations so that the final dispersions are preferably about neutral, i.e have pH values about 7. A further improvement to the dilutability by the addition of a surfactant, preferably a non-ionic surfactant, is also discssed.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: June 16, 1987
    Assignee: Mobay Corporation
    Inventors: Charles W. Sandefur, Thomas J. Thomas
  • Patent number: 4665107
    Abstract: A process for modifying colorants which comprise an active ingredient of solid primary particles in the submicron range by an encapsulation with polymer starting materials that are not substantially altered during the process. Writing fluids, textile colorants and cosmetic inks are disclosed wherein the intrinsic physical qualities of a solid active material are modified to create a stable aqueous dispersion with performance and rheology characteristic of the polymer, and not of the active ingredient.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 12, 1987
    Assignee: Koh-I-Noor Rapidograph, Inc.
    Inventor: Fortunato J. Micale
  • Patent number: 4654045
    Abstract: The present invention is a process for the preparation of concentrated anionic red dye solutions which are storage stable. The process allows manufacture of a solution of a dye having the formula: ##STR1## wherein R.sub.1 is --SO.sub.2 N(CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3).sub.2, --SO.sub.2 N(C.sub.6 H.sub.5)(CH.sub.2 CH.sub.3), --SO.sub.2 N(CH.sub.3)(C.sub.6 H.sub.11), or --CF.sub.3 ;R.sub.2 is --H, --Cl or ##STR2## and R.sub.3 is lower alkyl M is ##STR3## wherein R.sub.4 and R.sub.5 are --H or --CH.sub.3 independently andm+n+q.ltoreq.9, but >0,by reacting a dye having the structure: ##STR4## wherein R.sub.1 is --SO.sub.2 N(CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3).sub.2, --SO.sub.2 N(C.sub.6 H.sub.5)(CH.sub.2 CH.sub.3), --SO.sub.2 N(CH.sub.3)(C.sub.6 H.sub.11), or --CF.sub.3 ;R.sub.2 is --H, --Cl or ##STR5## wherein R.sub.3 is lower alkyl, andX is NH(R.sub.6).sub.3,wherein R.sub.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: March 31, 1987
    Assignee: Crompton & Knowles Corporation
    Inventor: Jay E. Rowe
  • Patent number: 4648883
    Abstract: The invention relates to a process for the preparation of a storage stable aqueous formulation of anionic dyes, which process comprises treating the aqueous dye solution and/or dispersion with a polymeric anion exchanger, simultaneously and/or subsequently subjecting the resin-bonded dye to a mechanical wet grinding, in the presence of a nonionic dispersant, and adding to the resultant aqueous dispersion the assistants customarily present in the liquid dye formulations.The process makes it possible to precipitate anionic dyes in virtually quantitative yield from aqueous solution and to prepare storage-stable dye dispersions.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Nitya G. Podder
  • Patent number: 4648884
    Abstract: The invention relates to aqueous/organic or purely organic solutions of anionic dyes, the principal feature of which solutions is that they contain the dye or dyes, dissolved in a C.sub.1 -C.sub.4 monoalkyl ether of propylene glycol, or of butylene glycol, or in a C.sub.1 -C.sub.4 carboxylic acid ester thereof, or in a mixture of these solvents. Such dyestuff solutions are storage stable and are especially suitable for spray dyeing leather.
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: March 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Zdenek Koci
  • Patent number: 4612015
    Abstract: Novel liquid dye formulations which contain organic carbonates in addition to conventional components are very useful for dyeing organic substrates.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: September 16, 1986
    Assignee: BASF Aktiengesellschaft
    Inventor: Rainer Dyllick-Brenzinger
  • Patent number: 4602915
    Abstract: A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,m=1, 2 or 3,n=1, 2 or 3,m+n=3 to 4 andM.sup..sym. =H.sup..sym., an alkali metal cation or an ammonium ion,is provided.The storage-stable solution according to the invention is characterized in that it contains 10-35% by weight of reactive dyestuff (1), 10-30% by weight of solubilizing agent, 0-10% by weight of anionic dispersing agent, 0-7% by weight of inorganic salts, such as Na.sub.2 SO.sub.4, Li.sub.2 SO.sub.4 and the like, and 0.1-3% by weight of buffer (pH 4-7), the remainder to make up to 100% by weight being water.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: July 29, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Karlheinz Wolf
  • Patent number: 4592756
    Abstract: A dye solution composition containing a black dye obtained by the action of at least one acid or its salt:HO(CH.sub.2).sub.n SO.sub.3 H, Cl(CH.sub.2).sub.n COOH, Br(CH.sub.2).sub.n COOH (n=1 or 2)on one or a mixture of dyes of the formula (I): ##STR1## wherein R is phenylene or naphthylene residue; X and X' are each H, sulfonic acid group or sulfonate group; Y and Y' are each H or alkali metal; R' is one of amino group-containing radicals: ##STR2## (the carboxyl group may be carboxylate group and the sulfonic acid group may be sulfonate group), except that when R' has not sulfonic acid group, X and X' are not the same and when R' has sulfonic acid group, X and X' are H. This is highly stable, preservative and water soluble, and is useful as ink composition for ball-point pen and ink jet recording.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: June 3, 1986
    Assignee: Taoka Chemical Company, Limited
    Inventors: Sinjiro Kawasaki, Hideo Kitagawa, Yutaka Nishii
  • Patent number: 4589885
    Abstract: Liquid, water-containing dyeing formulation of a reactive dyestuff, which contains 10-50% by weight of C.I. Reactive Blue 19, 5-50% by weight of one or more anionic dispersants from the group of the ligninsulfonates or from the group of condensation products of formaldehyde with naphthalenesulfonic acid or with a naphthalenesulfonic acid which is substituted by 1-3 lower alkyl groups, 1-30% by weight of the sodium salt of anthraquinone-2-sulfonic acid, 1-6% by weight of one or more buffer substances which are incapable of any reaction with the reactive dyestuff which diminishes the dyeing strength, and 38-83% by weight of water.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: May 20, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Konrad Opitz
  • Patent number: 4588411
    Abstract: The invention relates to long-shelflife print pastes containing at least one water-soluble reactive dye of the formulaD--(X).sub.m (1)in which D is the radical of an organic dye of the monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, nitroaryl, dioxazine, phenazine or stilbene series, X is a fibre-reactive radical of the aliphatic, aromatic or heterocyclic series which is bonded to the radical D either directly or via a bridge member, and m is 1, 2, 3, 4, 5 or 6, and, per fibre-reactive radical X, at least twice the stoichiometric amount of an alkali metal acetate, and to their use for printing cellulosic fibres.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: May 13, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Scheibli, Alex Kanzig, Andres Schaub
  • Patent number: 4585459
    Abstract: A process is described for separating sodium sulfate from aqueous solutions, containing less than 2% by weight of chloride, of certain fiber-reactive copper-formazan dyestuffs wherein this dyestuff solution is cooled down to a temperature between +5.degree. C. and -15.degree. C. In the course of the cooling the sodium sulfate precipitates in the form of the decahydrate and can be separated off in conventional manner, for example by filtration. The products obtained in this way are liquid low-salt aqueous copper-formazan dyestuff preparations which contain less than 4% by weight of sodium sulfate.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: April 29, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Konrad Opitz, Gunther Schwaiger
  • Patent number: 4581036
    Abstract: A process is described for separating sodium sulfate from aqueous solutions of certain fiber-reactive dyestuffs, which contain less than 2% by weight of chloride, by cooling down said solution to a temperature between +5.degree. C. and -15.degree. C. In the course of the cooling, the sodium sulfate precipitates in the form of the decahydrate and can be separated off in conventional manner, for example by filtration. The results obtained in this way are aqueous liquid low-salt preparations of these dyestuffs which contain less than 4% by weight of sodium sulfate.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: April 8, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Konrad Opitz, Heinrich Pohlmann, Manfred Sittig, Christian Fabel, Siegfried Wilhelm, Franz Mitter
  • Patent number: 4560387
    Abstract: The invention relates to novel aqueous formulations for dyeing and printing polyester/cellulose blends. In addition to containing at least one water-insoluble or sparingly water-soluble dye and at least one fibre-reactive dye, these formulations contain a non-ionic water-soluble cellulose ether, preferably hydroxyethyl cellulose. The formulations have a very good shelf life, do not recrystallize and do not form tacky deposits.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: December 24, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Defago, Sabahattin Guz
  • Patent number: 4548612
    Abstract: A reactive dye composition comprising (1) a dye having the formula, ##STR1## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substituted phenylene or naphthylene group, X is a halogen atom, and Y is a group, --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a group capable of being split by the action of an alkali, and (2) a buffer, the amount of the buffer being from 3 through 80% by weight based on the weight of the dye, and the pH value of an aqueous solution prepared from the dye composition and water of 20 times as much as the weight of the dye composition being from 3.5 through 7.5, which is superior in storage stability, and useful for dyeing or printing fiber materials to give dyed or printed products having superior fastness with high reproducibility.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: October 22, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yutaka Kayane, Naoki Harada
  • Patent number: 4540418
    Abstract: A reactive dye composition comprising at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: September 10, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Katsumasa Otake, Takashi Omura, Yutaka Kayane, Kunihiko Imada
  • Patent number: 4540595
    Abstract: An ink that fluoresces in the near infrared is used to mark documents such as bank checks for automatic identification. Markings with this ink are reliably detectable, even in the presence of other markings commonly found on such documents. The preferred fluorescent material of our invention is a phenoxazine dye 3,7-BIS(diethylamino) phenoxazonium nitrate.
    Type: Grant
    Filed: October 7, 1982
    Date of Patent: September 10, 1985
    Assignee: International Business Machines Corporation
    Inventors: Mario A. Acitelli, Richard F. Tynan, Alan R. Wayson
  • Patent number: 4536185
    Abstract: A novel liquid preparation containing a mixture of dyes according to claim 1, an aliphatic carboxylic acid, and optionally water and organic solvents. This novel preparation is storage-stable and temperature-stable and can be used in particular for dyeing polyacrylonitrile materials in black shades, the dyeings obtained having a neutral shade, negligible change of shade in artificial light and very good fastness to light.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: August 20, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Arnulf R. Lapple, Alex Nicopoulos
  • Patent number: 4523924
    Abstract: The invention describes a process for the preparation of stable aqueous solutions of water-soluble reactive dyes, starting from an aqueous solution or suspension of the crude reactive dye which is concentrated and at least partially desalted by a membrane separation process. The process of the invention comprises continuously replacing part of the water which is drawn off from the dyestuff solution or suspension during the membrane separation process with demineralized water, whereby the concentration of calcium and magnesium ions in the dyestuff solution does not exceed 0.01% by weight. The concentrated and desalted dyestuff solution is stabilized by addition of a polyphosphate or dihydrogen phosphate/polyphosphate buffer, and a component which improves the water-solubility of the dye is optionally added.The formulations so obtained are readily storable for several months in the temperature range from -10.degree. to +40.degree. C.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: June 18, 1985
    Assignee: Ciba-Geigy Corporation
    Inventor: Roger Lacroix
  • Patent number: 4515599
    Abstract: A process for dyeing paper which comprises the use of dyes of the formula ##STR1## wherein R is hydrogen, hydroxyl or amino, X is the azoxy or azo group, and n is 1 or 2, and the bonds of the complexing oxygen atom in the .alpha.-position and of the azo group in the .beta.-position at the naphthalene nuclei are mutually interchangeable. Dyeings of good wetfastness and lightfastness are obtained.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: May 7, 1985
    Assignee: Ciba Geigy Corporation
    Inventor: Adolf Kaser
  • Patent number: 4514186
    Abstract: The invention relates to aqueous dyestuff formulations which contain at least one telomer of the formula I ##STR1## or a salt thereof, in addition to at least one anionic dispersant and optionally further ingredients. In formula I the symbols have the following meanings: X is hydrogen or ##STR2## Y is hydrogen, --SO.sub.4 H or ##STR3## each of R.sub.1 and R.sub.2 independently of the other is hydrogen, C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by a carboxyl group or is carboxyl; and the sum of n+m is an integer from 2 to 350. These compositions have good storage stability and redispersibility and are particularly suitable for use in the continuous dyeing process.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: April 30, 1985
    Assignee: Ciba Geigy Corporation
    Inventors: Alain Lauton, Zdenek Koci
  • Patent number: 4502864
    Abstract: Liquid concentrate of Direct Yellow 11 based on the crown ether complexes of tetrasodium direct yellow 11, are described as well as these novel soluble chelates of insoluble tetrasodium complexes of Direct Yellow 11.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: March 5, 1985
    Assignee: Ciba-Geigy Corporation
    Inventor: Jo Ann Cleverdon
  • Patent number: 4500321
    Abstract: A process for the preparation of storage-stable concentrated fluid dye compositions of water-soluble dyes, wherein an aqueous solution or suspension of at least one anionic crude dye is passed over a semi-permeable membrane containing ionic groups and having a pore diameter of 1 to 500 .ANG., to remove salts and synthesis by-products of molecular weights less than 500 and to partially remove water, optionally dried, and mixed with a water-miscible organic solvent and, if desired, further additives, before and/or after passage over the semi-permeable membrane. The fluid dye compositions obtained are particularly suitable for use in spray solutions for dyeing leather, as well as for the dying and printing of textile materials, in particular cellulosic fibres.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: February 19, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Hugelshofer, Beat Bruttel, Heinz Pfenninger, Roger Lacroix
  • Patent number: 4482350
    Abstract: A reactive dye composition which comprises a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR1## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0, which is very readily soluble in water and aqueous alkali liquors, resistant to coagulation when prepared into a color paste for printing, and useful for dyeing or printing cellulose fiber materials yellow with a high color yield, particularly by a one-bath pad dyeing method or printing method.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: November 13, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takemi Tokieda, Sadaharu Abeta
  • Patent number: 4480002
    Abstract: Dyestuff-containing microscopic capsule suspension for record materials, containing in microscopic capsules a lactone family dyestuff represented by the general formula (I): ##STR1## wherein a, b, c and d are each a carbon atom or either one or two atoms of said a, b, c and d are nitrogen atoms and the remaining atoms are carbon atoms, said a, b, c and d may have one or two substituent groups, adjacent a-b, b-c or c-d bond may form another ring, X and Y represent individually a benzene, naphthalene or aromatic heterocyclic ring which may include one or more substituent groups, and X and Y may be the same or different and may be coupled together to form a ring; and a metal ion sequestering agent in the capsules or a liquid medium in which the capsules are suspended.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: October 30, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Makoto Asano, Kiyoharu Hasegawa, Hiroyuki Akahori, Michihiro Tsujimoto
  • Patent number: 4472168
    Abstract: Lithium salts of fiber reactive dyestuffs are stabilized in aqueous solution with N,N dialkylamine benzene sulfonic acid salt/acid buffers.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: September 18, 1984
    Assignee: ICI Americas Inc.
    Inventor: Donald R. Gauthier
  • Patent number: 4468230
    Abstract: The present disclosure is concerned with aqueous dispersions of anionic acid dyes, especially the monosulphonated level dyeing acid dyes, which have low room temperature, low shear viscosities and good storage stability. This low viscosity enables them to be readily poured, pumped and otherwise handled. These dispersions comprise dyestuff solids with a controlled particle size distribution having a median value between about 1 and 10 microns; an anionic dispersant; and an electrolyte. In a preferred embodiment the pH is adjusted to give an optimum viscosity value. Another preferred feature is the adjustment of the rheology with a thickening agent such as xanthan gum. These dispersions find particular utility in the continuous dyeing of carpet, especially in Kuesters or foam dyeing equipment.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: August 28, 1984
    Assignee: Mobay Chemical Corporation
    Inventors: Thomas J. Thomas, Robert G. Hoguet, Charles W. Sandefur, Dietmar Kalz
  • Patent number: 4465492
    Abstract: In a process for the preparation of concentrated aqueous formulations of synthetic anionic dispersants, dilute reaction solutions of said dispersants are subjected to reverse osmosis using membranes which contain ionic groups and have a pore diameter of 1 to 500 .ANG.. The dispersant formulations have a high concentration of active ingredient. They are suitable for the preparation of pigment and dye compositions and impart excellent stability to them, e.g. at elevated temperature and against mechanical influences.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: August 14, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Roland Putzar
  • Patent number: 4452608
    Abstract: The invention describes a process for the preparation of formulations of metal complex dyes by means of a membrane separation process, which process comprises adding an anionic surfactant to the hot synthesis solution of over 50.degree. C. of the metal complex dye before, during or after the final step of the synthesis, and cooling the solution to a temperature not lower than 20.degree. C. before the membrane separation process.The formulations so obtained are suitable for the preparation of dyebaths, padding liquors or printing pastes which may be used in particular for dyeing and printing textile material made of natural and synthetic polyamide.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: June 5, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Paul Erzinger
  • Patent number: 4449985
    Abstract: Disclosed are compositions for use in preparing thickened thermosol dyeing baths or printing paste wherein natural or synthetic thickeners are employed, comprising an aqueous system of one or more substantially water insoluble dyes and from about 2 to about 12%, preferably from about 3 to about 10%, and most preferably 4 to about 8% by weight of polyvinyl alcohol (PVA). In general, the dyes useful in the present composition are disperse dyes as defined in the Color Index, 3rd Edition, as azo, anthraquinone, methine, nitroarylamine, and quinoline. Particularly useful are such dyes, for example, comprised of couplers selected from aniline, tetrahydroquinoline, benzomorpholine, and their known derivatives, and diazo components selected from phenyl, thiazolyl, isothiazole, thiadiazolyl, thienyl, benzothiazolyl, and benzisothiazolyl and their known derivatives.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: May 22, 1984
    Assignee: Eastman Kodak Company
    Inventor: Joseph R. Ditzer, Jr.
  • Patent number: 4448583
    Abstract: An aqueous, liquid fiber-reactive dye composition which is stable to decomposition is disclosed. The composition consists essentially of 5 to 45% by weight of a water-soluble, fiber-reactive dyestuff having from 1 to 3 .beta.-sulfatoethylsulfonyl (--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H) groups, or a mixture of such dyestuffs; 0 to 10% by weight of water-soluble inert inorganic salt; and 45 to 95% by weight of water. Said liquid dye composition must have a pH of about 2.5 to about 4.5 and must be substantially free of buffer substances. The liquid dye composition may be stored for long periods of time at 0.degree. to 50.degree. C. with substantially reduced decomposition to the vinylsulfonyl dye form.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: May 15, 1984
    Assignee: American Hoechst Corporation
    Inventor: Anthony J. Corso
  • Patent number: 4443224
    Abstract: The invention relates to liquid reactive dyestuff preparations containing one or several dyestuffs, the chromophore of which has of from 1 to 8 SO.sub.3 H groups and of from 1 to 3 fiber-reactive groups, a solubilizer, an anionic dispersing agent and buffer substances and having a pH of from 3 to 7. These preparations are particularly stable to storage and are suitable for dyeing and printing natural and synthetic fiber material.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: April 17, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Konrad Opitz
  • Patent number: 4439205
    Abstract: An aqueous liquid dye composition containing 5 to 35% by weight of a reactive dye, 0.05 to 30% by weight of a reduction inhibitor and water. This composition is stable to storage for a long period of time or storage at relatively high temperatures.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: March 27, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Harada, Sadaharu Abeta
  • Patent number: 4436523
    Abstract: The invention relates to a process for the preparation of storage stable compositions of sparingly soluble or water-insoluble colorants, which process comprises mixing an aqueous suspension of at least one sparingly soluble or water-insoluble colorant with at least one surface-active substance, subjecting the mixture to ultrafiltration through an asymmetrical membrane which contains ionic groups and has a pore diameter of 1 to 500 .ANG. and a cut-off level in the molecular weight range from 300 to 500, subsequently subjecting the resultant concentrate to wet grinding and, if desired, drying, in particular spray drying the dispersion so obtained. The colorant compositions are particularly suitable for preparing padding liquors, dyebaths and printing pastes for coloring and printing textile materials, especially those made from cellulose and synthetic polyester.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: March 13, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Hugelshofer, Peter Zbinden, Zdenek Koci
  • Patent number: 4436522
    Abstract: A disperse dye composition containing:20 to 50% by weight of a water-insoluble or sparingly soluble dye; and1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.2 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.3 is a hydrogen atom or a methyl group, R.sup.4 is a hydrogen atom, a methyl group or an .alpha.-methylbenzyl group, any one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: March 13, 1984
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Toshio Niwa, Susumu Nagashima
  • Patent number: 4435181
    Abstract: The present disclosure is concerned with storage stable concentrated fluid aqueous dispersions of water soluble cold dyeing fiber reactive dyes. These dispersions contain anionic or polyvinyl dispersants to provide resistance against settling or agglomeration and water soluble electrolytes to provide resistance against hydrolysis of the fiber reactive groups. The dispersions have an average particle size of less than 100 microns and in a preferred embodiment sufficient buffering agent to stabilize the pH at between about 5 and 8.
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: March 6, 1984
    Assignees: Mobay Chemical Corporation, Bayer Aktiengesellschaft
    Inventors: Robert G. Hoguet, Dietmar Kalz, Thomas J. Thomas, Henry T. Whetsell, Joachim Wolff, Konrad Nonn, Karl-Heinz Wolf
  • Patent number: 4411668
    Abstract: The invention relates to dyestuff preparations comprising water, a water-insoluble or sparingly water-soluble dye, a dispersant, a humectant, and optionally further additives, wherein said humectant is a compound of the formula I ##STR1## wherein R is a C.sub.1 -C.sub.16 alkyl group which is unsubstituted or substituted by OH, CN, halogen or --N(C.sub.1 -C.sub.4 alkyl).sub.2, and R' is hydrogen or the --CH.sub.2 --CHOH--CH.sub.2 OH group.These preparations are suitable for use in aqueous or aqueous-organic dye liquors or printing inks or also for obtaining printing pastes. After partial or complete dehydration they are also very readily redispersible.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: October 25, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Suresh C. Agarwal, Horst Jager, Nitya G. Podder, Hans Mollet
  • Patent number: 4405329
    Abstract: Concentrated fluid formulations of textile dyes, leather dyes or paper dyes, comprising(1) metal-free dyes,(2) non-ionic compounds having a hydrotropic action, at least one of components (3) or (4), component(3) being a reaction product of a fatty acid having 8 to 22 carbon atoms and 1 to 2 mols of diethanolamine, and component(4) being a compound of the formula ##STR1## in which R is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms or a cycloaliphatic, aromatic or aliphatic-aromatic hydrocarbon radical having 10 to 22 carbon atoms, R.sub.1 is hydrogen or methyl, A is --O-- or ##STR2## X is the acid radical of an inorganic, oxygen-containing acid, the acid radical of a polybasic carboxylic acid or a carboxyalkyl radical and m is a number from 1 to 50,(5) water, a water-soluble organic solvent having a boiling point of at least 80.degree. C.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: September 20, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Abel, Paul Hugelshofer
  • Patent number: 4394130
    Abstract: Dyes of the formulaCuPc--CH.sub.2 --N.sup..sym. (CH.sub.3).sub.3 Cl.sup..crclbar.).sub.n,whereinCuPc is copper phthalocyanine, andn is 2 or 3,and mixtures thereof, are useful as paper dyes. The dyes may be added to paper stock prior to sheet formation or applied to paper in sheet form to produce turquoise colored paper. The dyed or printed paper is bleachable but has good fastness to light, wet treatments, alcohol and soap. The dyes are very soluble in water and exhaust well on, i.e., exhibit good substantivity to, paper.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: July 19, 1983
    Assignee: Sandoz Ltd.
    Inventor: Helmut Moser
  • Patent number: 4390342
    Abstract: A process for producing solid dye compositions, which process comprises passing an aqueous solution or suspension of at least one water-soluble crude dye, to effect separation of synthesis by-products having a molecular weight of below 500 and partial separation of water, through a semipermeable membrane, subsequently drying the resulting aqueous preparation which has become more highly concentrated, and optionally adding further additives before and/or after passage of the aqueous solution or suspension through the semipermeable membrane, these additives being added beforehand only when they do not become separated by the membrane.There are obtained by this process low-dust to dust-free compositions which are distinguished by high mechanical strength, high bulk density, free-flowing characteristics and good dissolving behavior. Employing these compositions it is possible to prepare low-foam to foam-free aqueous dye liquors having very good solution stability, even in the presence of electrolytes.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: June 28, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Beat Bruttel, Heinz Pfenninger
  • Patent number: 4389214
    Abstract: Propylene oxide reaction products, and the salts or quaternization products thereof are provided which are obtained from(a) an at least trihydric aliphatic alcohol of 3 to 10 carbon atoms,(b) 1,2-propylene oxide,(c) an aliphatic dicarboxylic acid of 2 to 10 carbon atoms, an aromatic dicarboxylic acid of 8 to 12 carbon atoms or the anhydrides thereof,and at least one of the following components:(d) an aliphatic diol with a molecular weight of at most 2000,(e) a fatty alcohol containing 12 to 22 carbon atoms,(f) a fatty acid containing 12 to 22 carbon atoms, and(g) an aliphatic monoamine or diamine containing 2 to 12 carbon atoms,of which component (g) is used only at the conclusion and only if component (c) is ethylenically unsaturated.The inventive products are suitable for widely varying uses in textile finishing.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: June 21, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Schafer, Heinz Abel, Fritz Mayer
  • Patent number: 4389213
    Abstract: The invention relates to the use of water-soluble compounds obtained by esterifying alkylene oxide adducts on alcohols having 10 to 24 C atoms with carboxylic acids having up to 22 C atoms and carrying 1 to 6 carboxyl groups as preparation agents for dyestuffs which are insoluble to sparingly soluble in water and preparations which contain a dyestuff having a particle size of less than about 5 .mu.m and one of the preparation agents mentioned.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: June 21, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Schneider, Hubert Kruse, Konrad Opitz
  • Patent number: 4385901
    Abstract: The readily dispersible dye preparations contain water, one or more dyes insoluble or difficultly soluble in water, a nonionic dispersing agent and optionally further additives, and as anionic dispersing agent:(a) a dialkylsulfosuccinate, the alkyl groups of which each contain 3-7 carbon atoms, or(b) a sulfated or sulfonated fatty acid or fatty acid ester of a fatty acid having in each case 10 to 22 carbon atoms, or(c) a fatty amine-oxalkylation product of the formula ##STR1## wherein Q is an aliphatic hydrocarbon radical having 12-22 carbon atoms,M is hydrogen, an alkali metal cation, ammonium cation or amine salt cation, andm and n are integers, the sum of m+n being at least 2 and at most 50.These preparations are suitable for use in aqueous and also organic printing inks.There are also described aqueous printing pastes which contain lignosulfonate, in addition to the anionic dispersing agents listed under (a), (b) and (c).
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: May 31, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Nitya G. Podder