Wood Dyeing Process Patents (Class 8/402)
  • Patent number: 11351100
    Abstract: A hair coloring composition may include at least one selected from the group consisting of thioglycolic acid, cysteine, 3-mercapto-1,2 - propanediol, cysteamine, derivatives and salts thereof, and a basic dye, a HC dye, an amino acid, cationic surfactant, thickener, oil agent, pH adjuster, and wetting agent, wherein the pH of the hair coloring agent composition is 3.5 or higher.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 7, 2022
    Assignee: SUNNYPLACE CO., LTD.
    Inventors: Nobuhito Mukai, Takashi Mukai
  • Patent number: 10717888
    Abstract: An ink composition contains dyes A and B. Dye A has a width at a half height of the largest peak in the absorption spectrum between 380 nm and 780 nm that is 50 nm or less. Dye B has a corresponding width at the half height that is 70 nm or more. Dye A is present in an amount of 40% by mass or more and 90% by mass or less of the total mass of the dyes.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 21, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Shintaro Hama, Ryosuke Teramoto, Kiyomi Kumamoto, Tetsuya Aoyama, Tomohiro Aruga, Kazuma Tsutsumi
  • Publication number: 20150033480
    Abstract: Wood color has an important economical impact on wood products. The hardwood lumber industry has shown a particular increase in demand by their customers for wood with an attractive, consistent and specified color. Fungi are a specific group of micro-organisms that can affect wood color. Some fungi produce various colourful pigments during their growth and can produce a preferable uniform color on wood products. The present invention includes methods to use selected fungi for producing various commercially desirable colors on wood and wood products. The methods include manners of fungal selection, culturing conditions, wood treating procedure, incubation timeframe, and drying process. The present invention also describes the wood produced by the method.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 5, 2015
    Inventors: Dian-Qing Yang, Manon Gignac
  • Publication number: 20140005091
    Abstract: The invention relates to the use of manganese or iron complexes which, as well as a tetraoxolene unit, contain two macrocyclic, N-containing ligands, especially cyclen or cyclam ligands, in washing and cleaning compositions in the form of granules or powder or solution or suspension for bleaching of coloured stains both on textiles and on hard surfaces. The invention also relates to washing and cleaning compositions which comprise such complexes as bleach activators and to the use thereof for textile washing or for dishwashing detergents and other uses in personal care and other areas.
    Type: Application
    Filed: February 3, 2012
    Publication date: January 2, 2014
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventors: Gerd Reinhardt, Werner Janitschek, Miriam Ladwig
  • Publication number: 20130255006
    Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.
    Type: Application
    Filed: November 29, 2011
    Publication date: October 3, 2013
    Inventors: Helmut-Martin Meier, Christof Heide, Klaus-Günter Strumpf, Thomas Hübbe
  • Publication number: 20130255007
    Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.
    Type: Application
    Filed: November 29, 2011
    Publication date: October 3, 2013
    Inventors: Helmut-Martin Meier, Christof Heide, Klaus-Günter Strumpf, Thomas Hübbe
  • Publication number: 20130139328
    Abstract: The present invention relates to the reaction product of (A) a polymeric backbone with (B) A chromophore; and with (C) at least one sulfide containing compound. Very good dyeing results are obtained with this new technology.
    Type: Application
    Filed: August 15, 2011
    Publication date: June 6, 2013
    Applicant: BASF SE
    Inventors: Sophie Marquais-Bienewald, Christian Cremer, Beate Frohling
  • Patent number: 8357518
    Abstract: The present disclosure relates to hydrolysis of mannan-containing poly- or oligo-saccharides by use of a polypeptide having endo-?-mannanase activity. In particular the present disclosure relates to compositions comprising a bacterial endo-?-mannanase, polynucleotides encoding the endo-?-mannanase, and methods of use thereof.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: January 22, 2013
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Yejun Han, Dylan Dodd, Satish Nair, Roderick I. Mackie, Isaac K. O. Cann
  • Publication number: 20120272461
    Abstract: Solubility changeable dye compositions include a dye component linked via a linker moiety to a stimulus responsive hydrophobic moiety which modulates the solubility of the dye, wherein the hydrophobic moiety is configured to be de-linked from the dye component on exposure to a stimulus and render the dye component more hydrophilic. A method of dying a substrate with such dye compositions includes contacting the dye with the substrate.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Inventor: Seth Adrian MILLER
  • Patent number: 8206463
    Abstract: A process for making a colored article of manufacture is disclosed. Accordingly an article of manufacture is first prepared of a material selected from the group consisting of metal, wood, glass, ceramic, masonry and polymeric materials. A polymeric coating (superstrate) is then applied to at least a portion of the surface of the article. At least a portion of the superstrate is brought into contact with a material system that contains (i) water, (ii) a carrier, (iii) a dye and (iv) a diol, under conditions calculated to bring about diffusion of said dye into said superstrate.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: June 26, 2012
    Assignee: Bayer MaterialScience LLC
    Inventors: Mark W. Witman, Robert A. Pyles, Rick L. Archey, Joseph D. Ventura
  • Publication number: 20120110750
    Abstract: Disclosed are polymeric dyes of formula (1a), (1b), or (1c); wherein A and B, independently from each other represent a polymer backbone; X1 and X2 independently from each other are a linkage group selected from —S—, —S—S—, —N—, —N?—, —N(R5)—, —S(O)—, —SO2—, —(CH2CH2—O)1-5—, —(CH2CH2CH2—O)1-5—, —C(O)—, —C(O)O—, —OCO—, (formula II) —CON(R1)—, —C(NR1R2)2—, —(R1)NC(O)—, —C(S)R1—; which may be interrupted and/or terminated at one or both ends by one or more than one —C1C30alkylene- or —C2-C12alkenylene-; or an optionally substituted, saturated or unsaturated, fused or non-fused aromatic or nonaromatic (heterocyclic) bivalent radical optionally comprising at least one heteroatom; a saturated or unsaturated, fused or non-fused aromatic or nonaromatic bivalent radical comprising at least one heteroatom, which is optionally substituted by C1-C30alkyl, C1-C30alkoxy, C2-C12alkenyl, C5-C10aryl, C5-C10cycloalkyl, C1-C10alkyl(C5-C10arylene), hydroxy or halogen; R1 and R2 independently from each other are hydrogen; unsubst
    Type: Application
    Filed: July 15, 2010
    Publication date: May 10, 2012
    Applicant: BASF SE
    Inventors: Christian Cremer, Oliver Becherer, Beate Fröhling
  • Publication number: 20100303927
    Abstract: A method for imparting brown and natural colorants to wood treated with micronized wood treatments, by injecting into the wood a a salt of lignosulfonate and a salt of humic acid or derivatives thereof in a total amount that is greater that 0.02 pounds total per cubic foot of wood, the quantity of salts of lignosulfonates and salts of humic acids or derivatives thereof being sufficient to impart a brown or dark color to the treated wood.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Inventor: Michael P Pompeo
  • Patent number: 7794508
    Abstract: A method for producing colored gluelam bamboo articles includes splitting bamboo stalks into strips and removing the tabasheer and bamboo rind from the strips. The strips are steamed and then dyed under a high-pressure. The dyed bamboo strips are then dried and planed into a finish plane form. The dyed and finished plane strips are then laminated together with an adhesive to form bamboo timber boards or panels of various sizes. The colored gluelam bamboo timber articles produced exhibit a beautiful, natural dyed appearance in which the natural texture of the bamboo is brought forth and fully preserved after the dyeing, and gluelam bamboo timber products produced from the boards or panels will not warp in the presence of high humidity. The method results in low equipment and manufacturing costs and a high production efficiency.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 14, 2010
    Assignee: Maria Yee, Inc.
    Inventors: Maria Yee, Yong Ming Zhao
  • Publication number: 20090271931
    Abstract: A method for producing colored gluelam bamboo articles includes splitting bamboo stalks into strips and removing the tabasheer and bamboo rind from the strips. The strips are steamed and then dyed under a high-pressure. The dyed bamboo strips are then dried and planed into a finish plane form. The dyed and finished plane strips are then laminated together with an adhesive to form bamboo timber boards or panels of various sizes. The colored gluelam bamboo timber articles produced exhibit a beautiful, natural dyed appearance in which the natural texture of the bamboo is brought forth and fully preserved after the dyeing, and gluelam bamboo timber products produced from the boards or panels will not warp in the presence of high humidity. The method results in low equipment and manufacturing costs and a high production efficiency.
    Type: Application
    Filed: January 21, 2009
    Publication date: November 5, 2009
    Applicant: Maria Yee, Inc.
    Inventors: Maria Yee, Yong Ming Zhao
  • Publication number: 20090265980
    Abstract: According to one aspect of the present invention, there is provided a visual attenuation composition applicable to a landscape to visually attenuate or camouflage the landscape to approximate color characteristics of the surrounding terrain. The visual attenuation composition includes a colorant selected from the group consisting of a pigment, a dye, and combinations thereof, and optionally includes an additive selected from the group consisting of a flocculent, a tackifier, a stabilizer, and combinations thereof. The visual attenuation composition may further include a liquid medium such as water to form a slurry suitable for spray application. The visual attenuation composition described herein can be combined with a soil treatment product to impart desirable color and colorfastness. Alternatively, the soil treatment product can be first applied to the landscape prior to the application of the visual attenuation composition.
    Type: Application
    Filed: July 2, 2009
    Publication date: October 29, 2009
    Applicant: Profile Products L.L.C.
    Inventors: Kevin S. Spittle, Marc S. Theisen, Jessie Clark, James D. Tanner
  • Patent number: 7608117
    Abstract: The present invention relates to a method of producing a granular formulation of colorants soluble in plastics, which method comprises suspending in water a filter cake obtained from preparation of the colorant, adding thereto from 0.1 to 5.0% by weight, calculated with respect to the weight of colorant, of a polyvinylpyrrolidone and, where appropriate, further adjuvants, and then drying the aqueous suspension to form granules, to the granular formulations obtainable according to that method, and to the use thereof in the production of colored plastics or colored polymeric particles.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: October 27, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Paolo Balliello, Walter Dümler
  • Patent number: 7537619
    Abstract: A method and a system for treating betula wood to change the coloration thereof to resemble that of Cherry wood or heartwood of birch is described. The betula wood is introduced in treatment chamber which is under atmospheric pressure. Hot steam from a steam generator is introduced in the treatment chamber in a lower section thereof for subjecting the betula wood to be treated to a hot water vapor environment. The temperature and humidity levels in the treatment chamber are controlled over a time span until the betula wood is completely saturated with water and has obtained a desired color transformation. This color transformation is uniform throughout the thickness of the wood and thereby highlights the grain in the betula wood while at the same time changes its color whereby it resembles Cherry wood or heartwood of birch. The treated wood is then cooled in the treatment chamber and removed therefrom for further processing.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: May 26, 2009
    Assignee: Félix Huard Inc.
    Inventor: Michel Huard
  • Publication number: 20090119850
    Abstract: According to the invention, a metal salt and an oxygen source are applied to penetrate or impregnate a suitable substrate sequentially in effective amounts so as to react in contact with the substrate and produce a mineral compound fixed within the surface of the substrate. The inventive combination of a mutually compatible metal salt, oxygen source, and substrate brings about an in situ reaction, and modifies the substrate to bring about a lasting desired effect. The mineral compound that is produced according to the invention is linked to the substrate, is stable and long-lasting or permanent, and is immobilized or insolubilized in the substrate. The mineral compound is bound or contained within and on the surface of the substrate, so it may be said to be ingrained in the fibers or matrix of the substrate, or embedded within the substrate. The desired effect is preferably a color. A wide variety of metal salts may be used depending on the desired effect.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 14, 2009
    Applicant: Purecolor, Incorporated
    Inventor: Stephen B. Auger
  • Patent number: 7217803
    Abstract: The present invention relates to azo dyes of formula (1) which are soluble in organic solvents, wherein R1 is —CN, —COOR5, —CONR6R7 or a heterocyclic ring, R2 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, —CF3, —COOR5, —CONR6R7 or —COR5, R3 is hydrogen, —SO3M, alkyl, alkoxy, alkylcarbonyl, —NO2 or halogen, R4 is substituted aryl, substituted heteroaryl or an aryl-N?N-aryl radical, wherein one or both of the aryl radicals in aryl-N?N-aryl is/are unsubstituted or substituted, or a radical heteroaryl-N?N-heteroaryl, wherein one or both of the heteroaryl radicals in heteroaryl-N?N-heteroaryl is/are unsubstituted or substituted, R5 is hydrogen, alkyl or unsubstituted or substituted aryl, R6 is hydrogen, alkyl or unsubstituted or substituted aryl, R7 is hydrogen, alkyl or unsubstituted or substituted aryl, M+ is a cation, n is a number 1, 2 or 3 and m is a number 1, 2 or 3, to a process for the preparation thereof and to the use thereof in the production of colored plastics or polymeric
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 15, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Leonhard Feiler, Thomas Raimann, Thomas Eichenberger, Max Hügin
  • Patent number: 6905520
    Abstract: According to the invention, a metal salt and an oxygen source are applied to penetrate or impregnate a suitable substrate sequentially in effective amounts so as to react in contact with the substrate and produce a mineral compound fixed within the surface of the substrate. The inventive combination of a mutually compatible metal salt, oxygen source, and substrate brings about an in situ reaction, and modifies the substrate to bring about a lasting desired effect. The mineral compound that is produced according to the invention is linked to the substrate, is stable and long-lasting or permanent, and is immobilized or insolubilized in the substrate. The mineral compound is bound or contained within and on the surface of the substrate, so it may be said to be ingrained in the fibers or matrix of the substrate, or embedded within the substrate. The desired effect is preferably a color. A wide variety of metal salts may be used depending on the desired effect.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: June 14, 2005
    Assignee: Stain, Inc.
    Inventor: Stephen B. Auger
  • Patent number: 6645257
    Abstract: A process for pigmenting wood, which comprises treating wood in succession: a) with a solution comprising from 0.01 to 80% by weight, based on the solution, of a compound of the formula A(B)x  (I), in which x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series which is attached to x groups B via one or more heteroatoms, these heteroatoms being selected from the group consisting of N, O and S and forming part of the radical A, B is hydrogen or a group of the formula  at least one group B not being hydrogen and, if x is a number from 2 to 8, the groups B being identical or different, and L is any desired group suitable for solubilization; and from 0.05 to 5% by weight, based on the solution, of a salt of the formula Kat+.An−  (II), Kat+.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 11, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans-Thomas Schacht, Gilbert Moegle, Reiner Jahn, Christiane Griessen, Peter Scheibli
  • Patent number: 6630002
    Abstract: The present invention relates to a process for the staining of wood, which comprises treating the unstained wood with an aqueous preparation comprising a) at least one dye, and b) at least one dye stabilizer of the formula (I) or (II)  in which G1 and G2, independently of one another, are C1-C4alkyl or together are pentamethylene, Z1 and Z2 are methyl, or Z1 and Z2 form a bridging member which is unsubstituted or substituted by an ester, ether, hydroxyl, oxo, cyanohydrin, amido, amino, carboxyl or urethane radical, E is oxyl or hydroxyl, and X is an inorganic or organic anion, and the total number of cations h corresponds to the total number of anions j, to a wood stain comprising a dye and a dye stabilizer of the formula (I) or (II), and to the use of this wood stain for the staining of wood.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: October 7, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stefan Koller, Peter Scheibli
  • Publication number: 20020038482
    Abstract: This invention relates to a process for dyeing wood with a liquid dyestuff preparation containing
    Type: Application
    Filed: February 2, 2000
    Publication date: April 4, 2002
    Inventors: Winfried Mennicke, Rolf Richter
  • Publication number: 20020000011
    Abstract: The present invention relates to a process for the staining of wood, which comprises treating the unstained wood with an aqueous preparation comprising
    Type: Application
    Filed: May 7, 2001
    Publication date: January 3, 2002
    Inventors: Koller Stefan, Scheibli Peter
  • Patent number: 6301829
    Abstract: A landscaping dressing for application to spread mulch, pine needles, and similar natural fiber soil covering comprising a blend of linseed oil and soybean oil. The dressing will restore faded mulch and reduce fading of fresh mulch. Plant derived oils such as eucalyptus and neem oil may be included in the dressing.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 16, 2001
    Inventor: Eric H. Kaufmann
  • Publication number: 20010012559
    Abstract: The present invention relates to a coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation. The present invention also relates to the use of the instant coloured porous material powders as pigments for high molecular weight organic materials.
    Type: Application
    Filed: June 11, 1998
    Publication date: August 9, 2001
    Inventors: JOHN ZAMBOUNIS, PATRICK VERHOUSTRAETEN, HENRI DUBAS, ZHIMIN HAO, PATRICE BUJARD
  • Patent number: 5942008
    Abstract: The present invention relates to a method for dyeing wood veneer. The veneer is immersed in a dye bath. The dye is preferably heated to speed up penetration times. The dye bath containing the veneer is then put into pressurized chamber and pressurized to 50-500 psi. The chamber is pressurized until the wood absorbs the amount of color that is desired. When the color is absorbed the pressure is released and the veneer is removed. The veneer is then washed with water until there is no bleeding and then air dried.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: August 24, 1999
    Inventor: Calogero Curto
  • Patent number: 5910623
    Abstract: Liquid or solid mixtures of low-salt sulfo-containing 1:2 metal complex dyes and poly-N-vinylpyrrolidone or copolymers of N-vinylpyrrolidone and vinyl acetate are especially useful for dyeing paper and wood and also for dyeing and finishing leather and fur.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Kessel, Manfred Patsch, Manfred Herrmann, Kurt Reiner, Jorg Jessen, Matthias Wiesenfeldt
  • Patent number: 5847113
    Abstract: A process for preparing sulfo-containing copper phthalocyanine dyes having an absorption maximum .lambda..sub.max..gtoreq.605 nm comprises heating copper phthalocyanine with at least 15% strength oleum at about 50.degree.-110.degree. C. until the reaction product has a .lambda..sub.max..gtoreq.605 nm, then diluting the resulting sulfonation product with water, adding a tertiary, lipophilic amine and stirring at elevated temperature until the lipophilic phase comprising the ammonium salt separates from the aqueous sulfuric acid phase, subsequently admixing the lipophilic phase, optionally after washing with water, with a water-soluble base whose sulfonate salt is to be prepared and water, separating the resulting phases and leaving the salt in the aqueous solution or isolating it therefrom.The products are especially useful for dyeing cellulosic fibers or polyamides.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: December 8, 1998
    Assignee: BASF Aktiengesellschaft
    Inventor: Rudolf Bermes
  • Patent number: 5746778
    Abstract: A wood stain which is water-based, which is suitable for staining wood, and which is comprised of water; at least one dye selected from the group consisting of azo, diazo and triarylmethane dyes; and a stabilizing agent which is effective to reduce free iron ion concentration in the stain when in contact with an autoclave composed of non-rust resistant steel during the staining process. The stabilizing agent includes at least one buffer effective to maintain the pH of the wood stain at greater than 7.0. Alternatively or additionally, the stabilizing agent includes at least one complexing agent which forms a complex with iron ions.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: May 5, 1998
    Assignee: A.W. Faber-Castell Unternehmensverwaltung GmbH & Co.
    Inventors: Axel Jankewitz, Gerhard Lugert
  • Patent number: 5567206
    Abstract: A wood stain which is water-based, which is suitable for staining wood, and which is comprised of water; at least one dye selected from the group, consisting of azo, diazo and triarylmethane dyes; and a stabilizing agent which is effective to reduce free iron ion concentration in the stain when in contact with an autioclave composed of non-rust resistant steel during the staining process. The stabilizing agent includes at least one buffer effective to maintain the pH of the wood stain at greater than 7.0. Alternatively or additionally, the stabilizing agent includes at least one complexing agent which forms a complex with iron ions. A method for staining wood includes placing the wood into an autoclave composed of non-rust-resistant steel; submerging the wood in the wood stain; and staining the wood under pressure and temperature conditions effective therefor.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: October 22, 1996
    Assignee: A.W. Faber-Castell Unternehmensverwaltung GmbH & Co.
    Inventors: Axel Jankewitz, Gerhard Lugert
  • Patent number: 5501710
    Abstract: The novel copper phthalocyanine dyestuffs of the formula (I) ##STR1## in which CuPc represents a copper phthalocyanine radical,W represents branched or straight-chain C.sub.9-16 -alkylene,a represents 2 to 4,b represents 0 to 2, andthe sum of a and b is 3 to 4,are suitable for dyeing and printing cellulose-coating materials and for producing printing inks, in particular for ink-jet printing systems.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: March 26, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventor: Klaus Wunderlich
  • Patent number: 5485685
    Abstract: There are available as chlorine base organic solvents for cleaning by vapor-defatting methylene chloride (CH.sub.2 Cl.sub.2), trichloro ethylene (CHCl.dbd.CCl.sub.2), perchloroethylene (CCl.sub.2 .dbd.CCl.sub.2), 1,1,1-trichloroethane (CH.sub.3 CCl.sub.3) and flon 113 (CCl.sub.2 FCClF.sub.2), etc., of which mainly used is a methylene chloride (CH.sub.2 Cl.sub.2) solvent. By vaporizing said methylene chloride solvent and permeating its vapor into the wood to be treated 10, to melt the tough lignin in the cell structure, thereby perforating the cell membranes, and undermine the valve action of portholes of the false vessels or vessels, fleeing of the cell water confined inside the cells and lumens is facilitated through said perforations and the porthole valves. By perforating the cells and undermining the valve action of the portholes, the fleeing of the free water confined therein, when drying the treated wood by hot air or sun's heat, is facilitated, for the benefit of very rapid drying.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: January 23, 1996
    Assignee: Eiwa Co., Ltd.
    Inventor: Yotaro Hashimoto
  • Patent number: 5242464
    Abstract: This invention relates to a method for a single application of wood bleach that improves the degree of whiteness, uniformity and depth of bleaching in the wood. The method includes the application of sufficient quantities of wood bleach to maintain an excess of liquid on the surface of wood for an extended time such as a minimum of 10 minutes to obtain penetration to a greater depth. Periodic motion of an abrasive powder, or an abrasive pad to continually relocate the excess bleach on the wood surface, either by machine or by hand, provides even distribution and eliminates the raised grain on the bleached wood. Another aspect to the invention is a single step process of bleaching and dyeing in which the dye is mixed in the bleach solution.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: September 7, 1993
    Assignee: Pyxis Corporation
    Inventors: Donn R. Armstrong, Richard P. Anderson, Stanley S. Borys
  • Patent number: 5171328
    Abstract: Wood stains contain in addition to a colorant and a solvent at least one stabilizer against the action of light, oxygen and heat on the wood treated with the wood stain, said stabilizer containing at least one structural element of the formula I ##STR1## where X is oxygen or nitrogen.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: December 15, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Hubert Trauth, Christos Vamvakaris
  • Patent number: 4979960
    Abstract: An apparatus and method for coloring aggregate wood material by directing a flow of material onto vertically spaced, perforate conveyors with each conveyor served by conduits discharging curtains of liquid dye. A drive system for the conveyors includes the provision of driving the conveyors at different speeds to increase aggregate depth for saturation purposes. Conduits of the spray system have oversized orifices directing discharges onto deflectors for curtain formation. Curtain impingement includes the aggregate material in transition in between conveyors. An inclined conveyor and pan returns dye removed from the material to a catch basin.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: December 25, 1990
    Assignee: Rexius Forest By-Products, Inc.
    Inventors: Arlen Rexius, John L. Hoeck, Jr.
  • Patent number: 4959076
    Abstract: A process of treating wood of the genus Juglans to change its color completely and throughout its entire structure and substance so as to produce a product with a color consisting of various shades of dark brown with conspicuous black streaks which duplicates the color of natural rosewood, thereby providing a synthetic rosewood or rosewood substitute, and the product produced thereby, are all described herein.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: September 25, 1990
    Inventor: Philip C. Rolffs
  • Patent number: 4840637
    Abstract: A process of treating wood of the genus Juglans to change its color completely and throughout its entire structure and substance so as to produce a jet black product with bronze highlights which duplicates the color of natural ebony, thereby providing a highlighted synthetic ebony or ebony substitute, and the product produced thereby, are all described herein.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 20, 1989
    Inventor: Philip C. Rolffs
  • Patent number: 4752297
    Abstract: A process for coloring wood whereby the resulting color will not change or substantially fade upon exposure to long term environmental weathering, which process comprises contacting the wood with an aqueous solution containing 0.01%-10% of an iron salt derived from a mono-, di-, or tri-carboxylic acid or a mono-, di-, or tri-carboxylic hydroxy acid containing 1-6 carbon atoms. The iron salt solution of this invention may be used to color nontreated wood as well as wood treated with known preservative compositions containing one or more heavy metals including copper, chromium, arsenic and zinc.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: June 21, 1988
    Assignee: Osmose Wood Preserving, Inc.
    Inventor: Robert M. Leach
  • Patent number: 4737154
    Abstract: An attractive, decorative naturally-appearing stained color can be given to wooden members by contacting the wood with a basic aqueous medium at elevated temperatures.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: April 12, 1988
    Assignee: SDSM&T Foundation Research Center, Inc.
    Inventors: Jack R. Gaines, Robert L. Sandvig
  • Patent number: 4716060
    Abstract: The coating of surfaces to impart gloss and protect from weathering, and the use of solvents in paint formulations, are disclosed; the following being exemplary: Compounds having the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are saturated alkyls having from 2 to 20 carbon atoms therein. R.sub.1 and R.sub.2, or R.sub.2 and R.sub.3, alternatively, may be the same and form a nitrogen heterocyclic compound such as that derived from, for example, a pyrrolidine, a piperidine or a hexahydroazepine.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: December 29, 1987
    Inventors: Vithal J. Rajadhyaksha, Nelly M. Rajadhyaksha
  • Patent number: 4713083
    Abstract: A coloring material comprising a solution of an alcohol-soluble resin having a sulfonic acid group or a salt thereof, which is dyed with a basic dye, in a solvent comprising an alcohol as a main component. The coloring material is prepared either by (a) polymerizing an ethylenically unsaturated sulfonic acid or a salt thereof in water and adding a basic dye to the obtained aqueous liquid of the formed polymer or (b) carrying out said polymerization in the presence of a basic dye, and dissolving (i) the obtained aqueous liquid of the formed colored polymer of (ii) a colored polymer obtained by removing water from the obtained aqueous liquid of the formed colored polymer in a solvent comprising an alcohol as a main component; or, (a') carrying out said polymerization in a solvent comprising an alcohol as a main component and then adding a basic dye to the obtained polymer solution, or (b') carrying out said polymerization in the presence of a basic dye.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: December 15, 1987
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Shuichi Okuzono, Tetsuo Tanaka, Yasuhiro Oda, Takashi Shintani, Noriaki Emura
  • 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: 4619665
    Abstract: Transfer sheets are provided which include a polyethylene imine as a blocking agent and which are useful in the heat transfer dye printing of various materials such as textiles. The polyethylene imine is capable of completely or partially blocking the transfer of sublimable dyes which have been imprinted on the transfer sheet while having no effect on other dyes which also have been imprinted on the transfer sheet. By using such transfer sheets, designs can be printed which are not otherwise obtainable by conventional techniques. The invention further concerns the method of making such sheets, their use in the printing of various materials, and the materials which have been so printed.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: October 28, 1986
    Assignee: Technographics Printworld, Inc.
    Inventors: Carl E. Sideman, Thomas E. Lewis, Michael T. Nowak
  • Patent number: 4556625
    Abstract: The present invention discloses a method of photolytically developing a colored image on a cellulosic material. In this method, the material is contacted with a nitrogen containing polymer in solution and a mono-sulfonyl azide compound in solution. The sample is thereafter exposed to a UV-containing light source for an amount of time sufficient to develop a color thereon.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: December 3, 1985
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ronald S. Lenox, Anne L. Schwartz, Charles E. Hoyle
  • Patent number: 4479825
    Abstract: Nonpigmented gelled wood stains are prepared from aniline dyestuffs, a solvent other than benzyl alcohol and dibenzylidene sorbitol as gellant therefor.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: October 30, 1984
    Assignee: National Starch and Chemical Corp.
    Inventor: Julio A. Fernandez
  • Patent number: 4477282
    Abstract: Nonpigmented wood stains suitable for use on unprimed hardwood surfaces are prepared from aniline dyestuffs and a solvent by the addition of cellulose ethers thereto. In a preferred embodiment the stains additionally contain dibenzylidene sorbitol as a gellant.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: October 16, 1984
    Assignee: National Starch and Chemical Corporation
    Inventor: Julio A. Fernandez
  • Patent number: 4416069
    Abstract: A process for darkening wood and thereby enhancing its surface characteristics is disclosed wherein wet wood is dried to about 6 percent moisture content in steam generated from the wood itself at temperatures from 215.degree. to 320.degree. F. and pressures from 15 to 40 psi whereby the wood is darkened through its thickness and thereby making the differentiation between earlywood and latewood in the wood more clearly observable than in wood not processed by this method and, thus, improves the wood grain quality.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: November 22, 1983
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Howard N. Rosen, Robert E. Bodkin, Kenneth D. Gaddis
  • Patent number: 4379073
    Abstract: A chemical composition is provided for preservation of wood from rot and the elements whereby the final wood is finished to a brown color wherein said brown color is color fast for several years.
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: April 5, 1983
    Inventor: Charles J. Zimmerman
  • Patent number: 4376141
    Abstract: A chemical mixture containing 40% by weight of sugar in water, approximately 0.4% by weight of a shading agent such as strontium nitrate and approximately 0.06% by weight of a stabilizing agent such as potassium chromate is applied to the surface of hard rock maple or print grade maple veneer. When the surface of the wood is subjected to heat in the range of 100.degree. F. to 900.degree. F. and pressure in the range of 5 psi to 2000 psi the color of wood is charged substantially to approach the reddish color of cherry. The degree of color is varied by adjusting the temperature or amount of shading agent. When an embossing step is to be performed on the wood, the chemical coloring mixture is applied to the surface of the wood and the two steps (embossing and staining) are carried out simultaneously.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: March 8, 1983
    Assignee: Stanley Interiors Corporation
    Inventor: David P. Maddox