Disperse Dye Patents (Class 8/456)
  • Patent number: 12157271
    Abstract: Methods for manufacturing three-dimensional objects using an additive manufacturing technique, methods for forming dye-infused feed material for an additive manufacturing technique, and vehicles including additive manufactured components are provided. An exemplary method for manufacturing a three-dimensional object using an additive manufacturing technique includes solubilizing a dye into a medium in the form of a supercritical fluid and contacting a feed material with the medium to infuse the dye into the feed material to form dye-infused feed material. The method further includes locally melting the dye-infused feed material in selected regions of a layer corresponding to a cross-section of a three-dimensional object being formed and solidifying the dye-infused feed material into a solid layer of dye-infused material. Further, the method includes repeating the local melting and solidifying steps to form the three-dimensional object made up of a plurality of solid layers of dye-infused material.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: December 3, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Joseph Deininger, Andrew Thomas Cunningham
  • Patent number: 11840020
    Abstract: Methods for forming a function-infused feed material for a three-dimensional printing technique, methods for manufacturing an additive-infused three-dimensional printed object, and vehicles including additive manufactured components are provided. An exemplary method for forming a function-infused feed material for a three-dimensional printing technique includes solubilizing a functional additive into a medium. Further, the method includes contacting a three-dimensional printing feed material with the medium to infuse the functional additive into the three-dimensional printing feed material to form the function-infused feed material.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: December 12, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, LLC
    Inventors: James Joseph Deininger, Andrew Thomas Cunningham, Madhu Anand, Rolf Schlake
  • Patent number: 11608592
    Abstract: The invention discloses a waterless fiber dyeing method using supercritical carbon dioxide fluid as a medium. Dry fibers are tightly loaded layer by layer in a porous yarn cage. After dyeing, the fibers are cleaned to remove unfixed dyes by an online way, thereby obtaining waterless dyed dry fiber products with good quality. With the supercritical carbon dioxide dyed by a dye, the invention can not only solve the problems of high energy consumption, high discharge, high pollution in the traditional dyeing process, but also obtain better dyeing effect. The invention has a simple process and convenient operation, which can effectively realize dry dyeing processing. The reaction is mild, avoiding the use of a large amount of water, heat and additives in high concentration, which has the features of being high efficiency and environmentally friendly.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: March 21, 2023
    Assignees: SOOCHOW UNIVERSITY, SHANDONG GAOMIAN GROUP CO., LTD.
    Inventors: Jiajie Long, Chong Cai, Chao Gao, Wei Gao
  • Patent number: 11560669
    Abstract: The present invention relates to a waterless fiber dyeing method using a mixed fluid medium, in which supercritical carbon dioxide fluid medium is mixed with steam to form a mixed fluid medium, so that the waterless fiber dyeing effect to natural fibers is improved. The method of the invention can effectively modify the hydrophobic supercritical carbon dioxide fluid medium and improve the polarity thereof, thereby increasing the solubility of polar dye under the dyeing condition and simultaneously expanding the fiber. Thus, the present invention significantly improves the dyeability and dyeing behavior of the hydrophilic fibers in supercritical carbon dioxide fluids. The invention has the advantages of simple process, convenient operation and low energy consumption, and avoids consuming a large amount of water resources and discharging pollutants in the traditional process, and has the characteristics of environmentally friendly and high efficiency.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: January 24, 2023
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Jiajie Long, Chong Cai
  • Patent number: 8551188
    Abstract: Composition comprising a hydrophobic dye, a particular organic and/or mineral alkaline agent, a particular compound (I) and a particular organic compound (II), and dyeing use thereof. The present invention relates to a dye composition comprising one or more hydrophobic direct dyes with a log P of greater than or equal to 2, one or more organic alkaline agents, and/or one or more mineral alkaline agents chosen from carbonates, hydrogen carbonates, sodium hydroxide and potassium hydroxide, and mixtures thereof, one or more compounds (I) comprising in their structure a sequence: and one or more organic compounds (II) with a Hansen solubility parameter ?H of less than or equal to 16 MPa1/2 and with a molecular weight of less than 250 g/mol. The invention also relates to a dyeing process that consists in applying such a composition to keratin fibers.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 8, 2013
    Assignee: L'Oreal
    Inventors: Boris Lalleman, Alain Lagrance
  • Patent number: 8506652
    Abstract: The present invention is directed to a disperse dye of formula (1) Wherein, X, Y and Z are, independently, hydrogen, halogen, cyano, nitro or SO2F; Wherein at least one of X, Y and Z is SO2F. R1 is hydrogen, methyl, hydroxyl or NHR4; R2 is hydrogen, chloro or methoxy; R3 is hydrogen, (C1-C4)-alkyl or —CH2(CH2)nCOOCH2CN; R5 is hydrogen, (C1-C4)-alkyl or —CH2(CH2)mCOOCH2CN; R4 is —COCH3, —CO C2H5, —SO2CH3 or SO2C2H5; n and m are independently 0,1 or 2, with the proviso: —When, Y and Z both are Cl, R1 is other than methyl. When, R2 is Hydrogen and R3, R4 both are alkyl, R1 is selected from NHSO2CH3 or NHSO2C2H5. Disperse dyes of Formula (I) have excellent washing fastness and light fastness on polyester fiber and polyester blends.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 13, 2013
    Assignee: Colourtex Industries Limited
    Inventors: Pankaj Desai, Kiyoshi Himeno, Nikhil Desai, Jay Patel
  • Patent number: 7892295
    Abstract: A disperse dye of formula (I): Wherein R1 and R2 independently are each (C1-C4)-alkyl, OH or (C1-C4)-alkoxy-substituted (C1-C4)-alkyl; R3 and R4 independently are each hydrogen or methyl; one of A and B is cyano and the other is —COOX; and X is (C2-C12)-alkyl, O-interrupted (C2-C12)-alkyl, (C3-C4)-alkenyl or phenyl-(C1-C4)-alkyl. The invention also relates to the preparation of the dye and the use of the dye.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: February 22, 2011
    Assignee: DyStar Colours Deutschland GmbH
    Inventor: Hartwig Jordan
  • Patent number: 7799092
    Abstract: The disclosure provides compositions for simultaneously bleaching and dyeing keratin fibers, comprising at least one direct dye chosen from anionic and nonionic dyes, with the exception of 7-(6?-methylphenylazo)-1-acetamido-3,6-disulfo-8-hydroxynaph-thalene, ortho-nitroanilines substituted meta to the amino group, quinoline and quinoline derivatives, and addition salts thereof, at least one associative polymer, at least one peroxygenated salt and at least one alkaline agent, to processes for simultaneously bleaching and dyeing keratin fibers using the compositions, and to uses of the compositions for simultaneously bleaching and dyeing keratin fibers. The compositions are suitable for dark hair. They are easy to use and can produce chromatic and fast coloration.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: September 21, 2010
    Assignee: L'Oreal S.A.
    Inventor: Sylvain Kravtchenko
  • Patent number: 7731762
    Abstract: A dye composition is provided and includes a non-aqueous dye and an ionic liquid. A dyeing method is provided and includes a process of applying the dye composition to an object, and a process of removing fluidity of the dye composition.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: June 8, 2010
    Assignee: Fujifilm Corporation
    Inventor: Yoshio Inagaki
  • Patent number: 7670391
    Abstract: The dust-free coated dye-containing pellet is a granulated carrier material that is encapsulated with a dye-containing coating material. The dye-containing coating material contains a mixture of a water-soluble or water-dispersible film-former with at least one direct dye and/or at least one oxidation dye precursor. Preferred carrier materials include dextrose, oligosaccharides and cellulose compounds. The dust-free coated dye-containing pellet is preferably made by granulating the carrier material together with optional antioxidants and auxiliary agents, heating the resulting granulate at no more than 34° C., subsequently coating the granulate by spraying it with a solution or dispersion of the coating material and optionally drying as needed.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: March 2, 2010
    Assignee: Wella AG
    Inventors: Juergen Schmenger, Petra Braun, Wolfram Englisch
  • Patent number: 7458992
    Abstract: The present patent application relates to dye-containing pellets obtained by (a) homogeneous mixing of a starting material containing at least one natural and/or synthetic dye with a suitable carrier material and then coating with a suitable encapsulation material or (b) coating a suitable carrier material with a mixture of at least one natural and/or synthetic dye and at least one suitable encapsulation material, to the use of said pellets for preparing colorants for keratin fibers and to the colorants based on said pellets.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: December 2, 2008
    Assignee: Wella AG
    Inventors: Juergen Schmenger, Petra Braun, Wolfram Englisch
  • Patent number: 7364596
    Abstract: The present disclosure provides dye compositions comprising at least one hydrophobic direct dye with a logP of greater than 2, at least one organic or mineral acid with a pKa of less than 4.5, in an aqueous-alcoholic dyeing medium comprising at least 60% by weight of water relative to the total weight of the composition, the pH of the composition being less than 7. The compositions allow shades ranging from pastel to strong colorations to be obtained on keratin fibers. Furthermore, the coloration obtained makes it possible to achieve or even exceed the fastness of oxidation dyeing.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: April 29, 2008
    Assignee: L'Oreal S.A.
    Inventors: Maxime De Boni, Alain Lagrange
  • Patent number: 7012137
    Abstract: The present invention relates to dyes of formula (I) wherein R is hydrogen or bromine, R1 is hydrogen, methyl or —NHCO—C1–C4alkyl, R2 is C1–C4alkyl substituted by C1–C4alkoxy and R3 has, independently of R2, any of the meanings of R2, and to the process for the preparation thereof and to the use thereof in dyeing or printing semi-synthetic and especially synthetic hydrophobic fiber materials, especially textile materials.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: March 14, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Antoine Clément, Jean-Claude Wilhelm, Alfons Arquint, Urs Lauk
  • Patent number: 6635347
    Abstract: A mixed fiber article dyed with disperse dye, composed of fiber dyeable with disperse dye and polyurethane fiber, having a color fastness to a perspiration-alkali test of grade 3 or higher according to the JIS L-0848-A Method and having a surface color shade of 20 or less in terms of L value determined by spectro-colorimetry. The dyed mixed fiber article containing polyurethane fiber can be prepared by dyeing a mixed fiber article composed of disperse dyeable fiber and polyurethane fiber, such as a co-knitted fabric, either in a dye bath in the presence of polyvalent metallic compound and tannic acid or after the co-knitted fabric has been treated in a bath containing polyvalent metallic compound and tannic acid.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: October 21, 2003
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Kiyoshi Yoshida
  • Patent number: 6616711
    Abstract: This invention relates to a process for printing hydrophobic fiber materials with disperse dyes, which comprises 1) dyeing or printing the fiber materials overall with a disperse dye, and 2) printing the fiber materials in areas with a printing paste, which comprises as component (A), at least one cationic assistant, as component (B), at least one polyethylene glycol, as component (C), at least one nonionogenic detergent and, optionally, as component (D), at least one disperse dye, it being possible for steps 1) and 2) to be carried out in any sequence and for step 2) to be carried out repeatedly without using any dye, or using different dyes, and, if necessary, drying the fiber material thus treated and then fixing the dye on the fiber material by heat treatment. The novel process affords multicolored prints having sharp contours and very good fastness to hot light.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: September 9, 2003
    Assignee: Ciba Speciality Chemicals Corporation
    Inventors: Alex Känzig, Claudius Brinkmann
  • Publication number: 20030019054
    Abstract: Disperse dyed polyethylene fibers obtained by either melt spinning or flash spinning and materials produced from said fibers are provided. The process utilizes dye blends containing at least three and, more preferably, four or more disperse dyes selected from a primary color group. The individual dyes are utilized at a concentration of at lest 75% but less than 100% of the determined maximum concentration which produces crocking. HDPE and LLDPE materials are effectively dyed using disperse dye blends formulated by the invention.
    Type: Application
    Filed: March 27, 2001
    Publication date: January 30, 2003
    Inventors: Anil W. Saraf, Michael Bridges, Venki Chandrashekar
  • Patent number: 6494924
    Abstract: The dyes have an average particle size within the range from 5 nm to 1 &mgr;m and a variance of less than 50%. They are especially useful for ink-jet ink preparations.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: December 17, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Auweter, Heribert Bohn, Robert Heger, Dieter Horn, Bernd Siegel, Karl Siemensmeyer
  • Publication number: 20010020311
    Abstract: In a method for dyeing textile material with one or more fiber-reactive disperse dyestuffs in a supercritical or almost critical fluid, such as CO2, which textile material is selected from the group consisting of silk, wool and cellulose, combinations thereof and combinations of one or more thereof with synthetic fibers, such as polyester and/or polyamide, the relative humidity of the fluid is in the range from 10-100% during dyeing. Textile materials which have been dyed with the aid of this method have properties which are at least equal to those of textile materials of the same type which have been dyed in the traditional manner using water-soluble dyestuffs. A device for carrying out the dyeing method is also disclosed.
    Type: Application
    Filed: February 9, 2001
    Publication date: September 13, 2001
    Applicant: Stork Brabant B.V., a Dutch company
    Inventors: Wilhelmus Johannes Theodorus Veugelers, Geert Feye Woerlee, Hendrik Gooijer, Jan Willem Gerritsen
  • Publication number: 20010003222
    Abstract: A polyester film can be dyed by coating the film with a layer of a dye mixture which is a suspension of at least one disperse dyestuff in a solution of a thickener in water and which has a viscosity of no more than 500 centipoise, preferably 5-50 centipoise, at ambient temperature, followed by heating to cause the dyestuff to migrate from the layer into the film. The coating process is preferably reverse gravure printing. The process can be used to prepare films which contain one or more dyestuffs in one surface region of the film and one or more different dyestuffs, for example an ultraviolet absorber, in the other surface region of the film. The dyed films show good resistance to fading when exposed to light and are useful for example as automobile window films.
    Type: Application
    Filed: December 14, 2000
    Publication date: June 14, 2001
    Inventor: William Douglas Snider
  • Patent number: 5928388
    Abstract: A disperse dye mixture which comprises, on a weight basis, from 5% to 70% of the dye of Formula (1), from 5% to 70% of the dye of Formula (2), and from 0% to 40% of the dye of Formula (3), wherein each of R and R.sup.1 represents an alkylene group and each of R.sup.2 and R.sup.3 represents an alkyl group.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: July 27, 1999
    Assignee: BASF Aktiengesellschaft
    Inventor: Alan Thomas Leaver
  • Patent number: 5108818
    Abstract: A surface-patterned, injection-molded article of polybutylene terephthalate (PBT) is produced by placing a film composed mainly of a polyester resin and back-printed with a desired graphic and/or indicia pattern in a mold cavity so that the printed surface of the film will be in contact with PBT resin to be injected thereinto. The polyester resin film has a melting point between 10.degree. C. to 60.degree. C. less than the melting point of the injected PBT. Molten resin composed mainly of polybutylene terephthalate is then injected into the mold cavity to cause the pattern-printed film to at least partially plasticize and thereby integrally meld (bond) onto a corresponding surface of the resulting molded PBT article.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: April 28, 1992
    Assignee: Polyplastics Co., Ltd.
    Inventors: Yoichi Ebina, Shigeru Nedzu, Terutaka Sano
  • Patent number: 5104720
    Abstract: A surface-patterned, injection-molded article of polybutylene terephthalate is produced by placing a film composed mainly of a polybutylene resin and back-printed with a desired graphic and/or indicia pattern in a mold cavity so that the printed surface of the film will be in contact with resin to be injected thereinto. Molten resin composed mainly of polybutylene terephthalate is then injected into the mold cavity to bond the pattern-printed film integrally onto a corresponding surface of the resulting molded PBT article.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: April 14, 1992
    Assignee: Polyplastics Co., Ltd.
    Inventors: Terutaka Sano, Shigeru Nedzu, Yoichi Ebina
  • Patent number: 5100717
    Abstract: A surface-patterned, injection-molded article of polybutylene terephthalate is produced by placing a film composed mainly of a polybutylene resin and back-printed with a desired graphic and/or indicia pattern in a mold cavity so that the printed surface of the film will be in contact with resin to be injected thereinto. Prior to mold placement, the back-printed surface is coated with an adhesive layer. Molten resin composed mainly of polybutylene terephthalate is then injected into the mold cavity to cause the adhesive to bond the pattern-printed film integrally onto a corresponding surface of the resulting molded PBT article.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: March 31, 1992
    Assignee: Polyplastics Co., Ltd.
    Inventors: Shigeru Nedzu, Yoichi Ebina, Terutaka Sano
  • Patent number: 5066535
    Abstract: A method for patterning a textile fabric in which a hydrophobic composition is uniformly applied to the surface of the fabric, and the resulting product. A high velocity water stream is used to wet areas of the fabric comprising the pattern areas. An aqueous dye is then applied uniformly to the fabric. The unfixed dye is retained by the fabric in those areas wetted by the water stream, the fabric is then treated to fix the retained dye.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: November 19, 1991
    Assignee: Milliken Research Corporation
    Inventor: Wesley D. Christie
  • Patent number: 5022891
    Abstract: The process for producing patterns on ground dye colored textile fiber pile substrates, particularly wherein the pile fibers are in the form of yarns comprised predominantly of polyamide fiber, and wherein at least some of the ground dye component is at least partially color dischargeable and selected from vat, reactive, direct, acid, premetallized or mordant dyes, the process comprising contacting selected portions of the colored pile fibers with a reducing system which optionally can contain one or more reduction resistant dye or pigment materials for in situ coloring of the substrates, the contacting being characterized by jet forcing the reducing system interstitially of the pile fibers to deposit the reducing system thereon substantially below the surface thereof, and to effect the color discharge of at least a portion of the ground dye component.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: June 11, 1991
    Assignee: Milliken Research Corporation
    Inventor: Daniel T. McBride
  • Patent number: 4820310
    Abstract: A method of producing characters, symbols, patterns (hereinafter referred to as "characters, etc.") on a thermoplastic resin molded article is characterized in that in order to produce characters, etc. on the molded article, a dye-impenetrable cover is first applied to that part of the surface of the molded article which corresponds to the characters, etc. to be produced, impregnation dyeing being then affected on the molded article surface including at least the peripheral area of the covered part of the surface by using a sublimative dye, the cover being subsequently removed, whereby the characters, etc. are produced as such.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: April 11, 1989
    Assignee: Polyplastics Co., Ltd.
    Inventor: Kiichiro Fukui
  • Patent number: 4571246
    Abstract: An improved process for production of discharge resist prints on textile material which contain hydrophobic fibers wherein at least one disperse dyestuff dischargeable to white discharge-resistant disperse dyestuff is applied, in the form of a dye liquor or printing paste, to the textile material and a discharge resist printing paste is printed on the material in the desired pattern, and the material is subsequently subjected to heat treatment at 100.degree. to 230.degree. C., wherein the improvement comprises the discharge resist printing paste containing, as the discharging agent, at least one salt of hydrogen sulphide, polysulphanes, compounds have a thiolate group of the formula --S.sup..crclbar. or a tautomerizable thio-group of the formula .dbd.S, and mixtures thereof.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: February 18, 1986
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Theo Stahl, Konrad Mix, Kurt Roth
  • Patent number: 4421516
    Abstract: An improved process for preparing discharge prints on textile materials containing hydrophobic fibers wherein at least one disperse dyestuff dischargeable to white is applied to the textile material in the form of a dyeing liquor of print paste and also contacted by a pattern-applied discharge resist print paste, and then the material is heat treated at 100.degree. to 230.degree. C., wherein the improvement comprises said discharge resist print paste having, under the heat treatment conditions, a pH value of zero to 3.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: December 20, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Theo Stahl, Ulrich Buhler
  • Patent number: 4400174
    Abstract: Process for printing on synthetic fibers of polyester, triacetate, acetate and polyamide as well as mixtures of these substances with disperse dyes according to the discharge or reserve discharge process, wherein a mixture of(a) 5 to 75 parts by weight of at least one reducing agent and(b) 5 to 90 parts by weight of a specified alkoxylated amine is used as the discharging agent.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: August 23, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Blum, Norbert Grund
  • Patent number: 4398914
    Abstract: Process for printing on synthetic fibers of polyester, triacetate, acetate and polyamide and mixtures of these fibers with dispersion dyes according to the discharge or discharge resist process, where a mixture of the following substances is used as a discharging agent:(a) 5 to 50 parts by weight of a compound having formula ##STR1## in which Me=Na, K, NH.sub.4 and alkyl substituted ammonium groups or an ammonium derivative which contains at least one radical derived from an alkali metal or ammonium salt of methane sulfinic acid,(b) 5 to 50 parts by weight of hexamethylene tetramine and(c) 0 to 20 parts by weight of anthraquinone.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: August 16, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Blum, Peter Kutschera, Guenther Vogl
  • Patent number: 4398913
    Abstract: In the process for production of discharge reserve prints on textile material comprised of water-repellent fibers or water repellent fibers mixed with cellulose fibers, wherein a disperse dyestuff which is dischargeable to white is applied in the form of a dye liquor or printing paste to the textile material after which said material is dried or incipiently dried, and a discharge reserve printing paste is printed on the material in the desired pattern, and the thus treated material is subsequently subjected to a heat treatment at temperatures of 100.degree. to 230.degree. C., the improvement comprises said disperse dyestuff which is dischargeable to white is a dyestuff of the formula ##STR1## as more fully defined herein and wherein said discharge reserve printing paste contains, as the discharging agent, a base which produces a pH value of at least 8 in a 5% strength aqueous solution.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: August 16, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Joachim Ribka, Kurt Roth, Theo Stahl
  • Patent number: 4386935
    Abstract: An improved process for producing discharge reserve prints on textile materials comprising water-repellent fibers or mixed water-repellent and cellulose fibers wherein a disperse dyestuff which is dischargeable to white is applied to the textile material in the form of a dye liquor or dye printing paste, at least partially drying the textile material, applying a discharge reserve printing paste to the material by printing on the material in the desired pattern and subsequently heating the printed material at temperatures from 100.degree. to 230.degree. C., with the improvement comprising (a) the discharge reserve printing paste containing, as the discharging agent, an alkaline material which produces a pH value of at least 8 in 5% strength aqueous solution and (b) the disperse dyestuff which is dischargeable to white is a disperse dyestuff of the formula ##STR1## as more fully defined herein.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: June 7, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Klaus Kuhlein, Theo Stahl, Horst Tappe, Kurt Roth
  • Patent number: 4313731
    Abstract: Mono-azo compounds and mono-azo dyes represented by the following general formula and a dyeing process for polyester fibers using the mono-azo dyes: ##STR1## wherein R.sup.1 and R.sup.2 individually represent hydrogen atom, substituted or non-substituted alkyl group, alkenyl group and cyclohexyl group, R.sup.3 represents hydrogen atom, chlorine atom, bromine atom, alkyl group, substituted or non-substituted alkoxy group or alkenyl group and R.sup.4 represents hydrogen atom, chlorine atom, bromine atom, alkyl group, alkoxy group, hydroxy group, acylamino group, alkoxycarbonylamino group, aralkyloxycarbonylamino group or alkylaminocarbonylamino group.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: February 2, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Seiichi Imahori, Kiyoshi Himeno, Maeda, Shuichi
  • Patent number: 4271224
    Abstract: A transfer sheet comprising, in laminated combination, a substrate sheet and, provided thereabove, a coloring layer of desired pattern containing a coloring agent possessing heat transferability and a resist layer of a desired pattern containing a metal compound for resist printing and a binder, the metal compound having the capability of causing the coloring layer to lose its heat transferability, either of the coloring layer and the resist layer being nearer than the other to the substrate sheet. Because of the capability of the metal compound, the resist power is very great, whereby ample resist printing effect can be obtained with only an extremely thin resist layer.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: June 2, 1981
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Shogo Mizuno, Takao Suzuki, Sadanobu Kawasaki, Hideichiro Takeda
  • Patent number: 4265630
    Abstract: A thermal dry transfer-printing process for printing synthetic fibre materials with multi-color effects, wherein there is used an intermediate carrier which is printed:(1) in places with at least one reserve printing paste or ink, and(2) with a printing paste or ink for printing the base (ground).The reserve paste or ink (1) contains at least:(a) one solvent,(b) one thickener,(c) optionally one non-reservable, sublimable disperse dye,(d) optionally one curing catalyst, and(e) one organic solvent and/or water.The printing paste or ink (2) for printing the base contains at least:(b) one thickener,(g) one reservable, sublimable disperse dye,(e) one organic solvent and/or water, and(f) optionally one binder.The printed intermediate carrier is fast to rubbing and is storage-stable. It is brought into contact with the fibre materials, and both are subjected to a heat treatment at elevated temperature until the non-reservable dyes are transferred from the carrier to the fibre material.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: May 5, 1981
    Assignee: Ciba-Geigy AG
    Inventor: Rolf Bauerle
  • Patent number: 4265629
    Abstract: In the process for production of resist effects on textile materials of mixed fibers of polyester and cellulose comprising impregnating the materials with a dye liquor containing disperse dyestuffs and reactive dyestuffs which react with the resisting agents, drying or partially drying the padded materials and subsequently printing a resist paste on the material, and heat-treating the materials the improvement comprises the dischargeable disperse dyestuffs being of a class of dyestuffs of which an exemplary species is ##STR1## one of the tautomeric forms of a class of dyestuffs of which an exemplary species is ##STR2## or disperse dyestuffs which are free from groups conferring solubility in water and which contain at least two carboxylic acid ester moieties.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: May 5, 1981
    Assignee: Cassella Aktiengesellschaft
    Inventors: Joachim Ribka, Horst Tappe, Kurt Roth, Hans-Jurgen Weyer
  • Patent number: 4242093
    Abstract: There is provided a process for the dyeing and printing of polyester textile fabrics with different shaded color effects on one or both sides of the fabric, comprising contacting the polyester fabric as such or having been previously dyed in light pastel shades, with an aqueous dye bath containing at least one hydrophobizing substance, drying the so-treated fabric, printing on one or both sides thereof with disperse dyes and affixing the dyes to the surface by thermosoling.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: December 30, 1980
    Assignee: Aziende Colori Nazionali Affini Acna S.p.A.
    Inventors: Pietro Gasperini, Francesco Brunetti
  • Patent number: 4235596
    Abstract: Process for the pad-dyeing and printing of textile material made from mixed fibres of cellulose and polyester, which process comprises impregnating of printing the textile material with a dispersion of a disperse dye containing at least one hetero atom which can be alkylated; treating the textile material, before, during or after the impregnating or printing operation, with a compound containing at least two epoxy groups or groups convertible into epoxy groups; and subjecting the material impregnated or printed with dye and epoxy compound to a heat treatment.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: November 25, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Andres Schaub, Paul Dussy, Peter Aeschlimann, Stefan Koller
  • Patent number: 4224026
    Abstract: Fast colorations can be obtained on cellulose materials with disperse dyestuffs containing ester groups when heat-fixation occurs in the presence of aliphatic alcohols, amines or aminoalcohols. Probably a transesterification and/or amide formation leading to significantly higher molecular weight of the dyestuffs are responsible for the good fastness properties of the colorations.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: September 23, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Friedrich Reinhardt