Five-ring Members In The Heterocyclic Ring Patents (Class 106/31.49)
-
Patent number: 6569212Abstract: Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: and all IJP-effective forms of such compounds; and in which M represents a metal or H; Pc represents a phthalocyanine nucleus of Formula (2) x+y+z represents an average from 3 to 4; and z may be zero. A represents C1-4-alkylene; R1, R3 each independently represent H or C1-4-alkyl; R4 represents H; or C1-4-alkyl optionally substituted with hydroxy; R5 represents a carboxylic acid substituted aryl group; and R2 represents H, C1-4-alkyl or a group of formula BD where: B represents C1-4-alkylene; and D represents NR6R7;or SC1-4alkyleneSO3H; where: R6 represents H; or C1-4alkyl, optionally subsititued by hydroxy; R7 represents H; C1-4alkyl, optionally subsititued by hydroxy or morphlino; or R6 and R7 together with the N atom to which they are attached form a morpholino or piperazino ring.Type: GrantFiled: February 27, 2001Date of Patent: May 27, 2003Assignee: Avecia LimitedInventor: Kathryn Carr
-
Patent number: 6562116Abstract: An ink for a ball point comprising at least one organic solvent selected from the group consisting of alcohols and glycol ethers, a resin and a colorant, wherein the spectral reflectance determined in the state where the ink for a ball point pen is filled into an ink reservoir has a maximum value in 500 to 520 nm, and a ratio of maximum strength/minimum strength of the spectral reflectance is 2.2 to 5.5. Further provided is a ball point pen equipped with a transparent ink reservoir charged with the ink, wherein the color of the ink can visually be identified through a part which transmits light in the ball point pen barrel.Type: GrantFiled: March 5, 2001Date of Patent: May 13, 2003Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Atsushi Satoh
-
Publication number: 20030084816Abstract: An ink-jet ink of multicolor dye set with high light-fastness comprises: a multicolor dye set, a surfactant, and an aqueous solvent. The multicolor dye set includes a cyan dye set, a magenta dye set, and a yellow dye set. The cyan dye set comprises direct blue 199 dye, acid blue 9 dye, and direct blue 86 dye. The magenta dye set comprises reactive red 180 dye, acid red 52 dye, and reactive red dye. The yellow dye set comprises acid yellow 23 and Milliken Palmer yellow R dye. When the multicolor dye set of the invention is applied in ink-jet printing process, the high-quality printed image possesses high light-fastness, high chroma, broad color gamut.Type: ApplicationFiled: June 25, 2002Publication date: May 8, 2003Inventors: Yi-Jing Leu, In-Shan Sir, Chia-Hsin Chien, Yu-Chang Shen
-
Patent number: 6558459Abstract: An inkjet ink is provided that employs one or more water-soluble colorants or water-insoluble colorants, such as solvent dyes, disperse dyes, or pigments. The colorant, whether water-soluble or water-insoluble, is derivatized with one or more crown ethers to render the water-insoluble colorants soluble in water and in water-miscible organic solvents commonly employed in inkjet printing, particularly thermal inkjet printing, and to impart improved properties to the colorants, such as lightfastness, smearfastness, and waterfastness. The inkjet ink comprises a vehicle and at least one crown ether derivatized colorant. The resulting inkjet ink evidences improved print quality properties, compared to inkjet inks containing colorants that are not so derivatized.Type: GrantFiled: February 27, 2001Date of Patent: May 6, 2003Assignee: Hewlett-Packard Development CompanyInventor: David M. Schut
-
Publication number: 20030079652Abstract: Ink and fixer compositions for printing on hydrophobic media. The ink compositions include a water soluble dye and a vehicle, the vehicle includes water, a glycol ether, a humectant, and a non-ionic surfactant. The fixer compositions include a fixing agent and a vehicle, the vehicle includes water, a glycol ether, a humectant, and a non-ionic surfactant.Type: ApplicationFiled: October 31, 2001Publication date: May 1, 2003Inventor: Mark L. Choy
-
Publication number: 20030079647Abstract: A recording liquid comprising a coloring agent and water, wherein the recording liquid containing a polyol (A) having a solubility in water at 20° C. of 0.2 wt. % or more and not more than 4.5 wt. %, and at least one compound (B) selected from a group consisting of compound represented by formula (1) R1,R2,R3.N→O (where R1 and R2 are an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms, and R3 is an alkyl group or an alkenyl group having 10 to 20 carbon atoms), and of compound represented by formula (2) represented by R4,R5,R6.N—CH2—CO—O−(where R4 and R5 are an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, and R6 is an alkyl group or alkyl group derived from cocoanut oil having 10 to 16 carbon atoms that may contain an amide group).Type: ApplicationFiled: December 7, 2001Publication date: May 1, 2003Inventors: Tetsuya Kaneko, Masayuki Koyano, Nobutaka Osada, Hitoshi Arita
-
Publication number: 20030079644Abstract: Disclosed is an aqueous ink composition comprising an aqueous liquid vehicle, a colorant, and an additive wherein, when the ink has been applied to a recording substrate in an image pattern and a substantial amount of the aqueous liquid vehicle has either evaporated from the ink image, hydrogen bonds of sufficient strength exist between the additive molecules so that the additive forms hydrogen-bonded oligomers or polymers.Type: ApplicationFiled: September 7, 2001Publication date: May 1, 2003Applicant: Xerox CorporationInventors: Thomas W. Smith, David J. Luca, Kathleen M. McGrane
-
Publication number: 20030070582Abstract: A compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, is contained in an ink composition and/or a recording medium. This makes it possible to provide an ink composition, a recording medium, printed matter, and an ink jet recording method with which the light resistance of the printed matter is excellent, there is no ink clogging, and a high-quality image with almost no yellowing of the printed matter can be obtained.Type: ApplicationFiled: March 21, 2002Publication date: April 17, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Kazuhiko Kitamura, Yasuhiro Oki, Tetsuya Aoyama, Kyoichi Oka, Nobuo Uotani, Hiroshi Takahashi, Yuji Ito
-
Patent number: 6547865Abstract: An ink jet printing process for improving the ozone stability an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon a porous image-receiving layer having interconnecting voids; and b) applying droplets of a liquid ink on the image-receiving layer in an image-wise manner, the ink comprising water, humectant and a metallized, phthalocyanine dye, the metallized, phthalocyanine dye comprising the formula: MPc(SO3X)a(SO2NRR′)b.Type: GrantFiled: March 21, 2001Date of Patent: April 15, 2003Assignee: Eastman Kodak CompanyInventors: Andrei Andrievsky, Bruce C. Campbell, Helmut Weber, James A. Reczek
-
Publication number: 20030061963Abstract: A color inkjet ink set for color printing having: (a) a yellow ink having a carrier and a yellow dye; (b) a magenta ink having a carrier and a mixture of a water-soluble, magenta anthrapyridone dye and Reactive Red 23, Reactive Red 24, Reactive Red 31, Reactive Red 120, Reactive Red 180, Reactive Red 241, Acid Red 35, Acid Red 52, Acid Red 249, Acid Red 289, Acid Red 388, Direct Red 227 or CAS No. 153204-88-7; and (c) a cyan ink having a carrier and a cyan dye.Type: ApplicationFiled: August 1, 2001Publication date: April 3, 2003Applicant: Eastman Kodak CompanyInventors: James W. Blease, Elizabeth A. Gallo
-
Patent number: 6540821Abstract: Color ink sets for use in printer systems are provided and formulated to provide improved plain paper and special media performance while maintaining good printing characteristics. The inks and ink sets of the present invention exhibit excellent color performance and lightfastness across a range of media, robust K/Y bleed resistance on plain paper at fast print speeds, as well as excellent printability and reliability. A specific dye set for formulating yellow, magenta, and cyan inks comprises a mixture of acid yellow 23 (AY23) and direct yellow 132 (DY132), a mixture of a cyan dye compound having the formula: —(SO3H)2.7 CuPc—(SO2NH2)0.5 —(SO2NH(C2H4OH)0.8 wherein Pc represents a phthalocyanine nucleus and acid blue 9; and a magenta dye compound having formula: wherein Q is a cation.Type: GrantFiled: May 4, 2001Date of Patent: April 1, 2003Assignee: Hewlett-Packard CompanyInventors: Raymond J Adamic, Mary E Austin, Hiang P Lauw, Dennis P Parazak, Zia Rehman
-
Patent number: 6533852Abstract: A recording ink includes at least a water-soluble azopyridone dye of the following formula (1) and a water-soluble organic solvent: This ink has good heat resistance and light resistance and is suitable for producing color filters by using an ink jet system. The use of the ink provides a color filter that is satisfactory in washing resistance and adhesion to substrates and exhibits less blurring in portions colored with green pixels and has good color contrast and color purity. The invention also provides a production method of the color filter, a liquid crystal display panel using the color filter, a production method thereof, as well as a yellow ink that is particularly suitable for forming yellow images observed through a transmitted light.Type: GrantFiled: January 29, 2001Date of Patent: March 18, 2003Assignee: Canon Kabushiki KaishaInventor: Masashi Hirose
-
Publication number: 20030041775Abstract: The novel phthalocyanine cyan dye of the formula (I) 1Type: ApplicationFiled: June 29, 2001Publication date: March 6, 2003Inventors: Larrie A. Deardurff, Hiang P. Lauw
-
Patent number: 6527844Abstract: An ink jet ink composition comprising water, a humectant, a polyvalent transition metal complex of an 8-heterocyclylazo-5-hydroxy-quinoline and an anti-kogation material comprising an alkali metal salt of a monobasic organic or inorganic acid. Examples of anti-kogation materials useful in the invention include sodium hexanoate, sodium sulfate, sodium propionate, sodium benzoate, sodium p-toluenesulfonate, sodium acetate, sodium bromide, sodium nitrate, potassium nitrate, lithium nitrate, lithium acetate, tetramethylammonium acetate and tetrabutylammonium bromide.Type: GrantFiled: February 27, 2001Date of Patent: March 4, 2003Assignee: Eastman Kodak CompanyInventors: David Erdtmann, Edgardo Lopez, Richard C. Van Hanehem, Steven Evans
-
Patent number: 6524378Abstract: An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer; C) loading the printer with an ink jet ink composition comprising water, a humectant, a polyvalent transition metal complex of an 8-heterocyclylazo-5-hydroxy-quinoline and an anti-kogation material comprising an alkali metal salt of a monobasic organic or inorganic acid; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals. Examples of anti-kogation materials useful in the invention include sodium hexanoate, sodium sulfate, sodium propionate, sodium benzoate, sodium p-toluenesulfonate, sodium acetate, sodium bromide, sodium nitrate, potassium nitrate, lithium nitrate, lithium acetate, tetramethylammonium acetate and tetrabutylammonium bromide.Type: GrantFiled: February 27, 2001Date of Patent: February 25, 2003Assignee: Eastman Kodak CompanyInventors: David Erdtmann, Steven Evans, Edgardo Lopez, Richard C. Van Hanehem
-
Patent number: 6524379Abstract: The present invention relates to a family of new porphine compounds for use as colorants and/or colorant stabilizers. The new porphine compounds may be used alone or may be used in combination with one or more colorants to provide light stability to colorants. The present invention further relates to inks containing the new porphine compounds and a method for making the new compounds. The present invention also relates to improved methods of making porphines. The improved processes allow the production of porphines at lower cost and higher yields compared to conventional methods of making porphines.Type: GrantFiled: January 12, 2001Date of Patent: February 25, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John G. MacDonald
-
Patent number: 6521031Abstract: An ink-jet ink which includes a coloring composition which contains an oil-soluble dye represented in the following formula (I). In the formula (I), R1 and R2 represent respectively independently a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, or the like. A represents —NR5R6 or a hydroxyl group. R5 and R6 represent respectively independently a hydrogen atom, an aliphatic group, or the like. B1 represents ═C(R7)— or ═N—, and B2represents —C (R8)═ or —N═. R3, R4, R7, and R8 represent respectively independently a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, or the like. Q includes at least one nitrogen atom and, together with a carbon atom to be combined, represents an atom group which is required to form a nitrogen-containing heterocyclic ring having a five-membered ring or more.Type: GrantFiled: March 8, 2001Date of Patent: February 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Keizo Kimura, Takayuki Ito
-
Patent number: 6517619Abstract: A non-aqueous fluorescent ink composition suitable for use in writing instruments is described comprising a soluble fluorescent colorant, a solvent, and an opacifying agent. The ink composition may also include resins, stabilizers, surfactants, lubricants and other inert additives. The fluorescent ink composition exhibits a brilliant appearance in masscolor and when written on paper.Type: GrantFiled: August 24, 2000Date of Patent: February 11, 2003Assignee: BIC CorporationInventors: Michael T. Nowak, Qingping Chen
-
Patent number: 6517618Abstract: Disclosed is an electrophoretic ink comprising a suspending fluid and, suspended in the suspending fluid, a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2, the particles being free to migrate within the suspending fluid under the influence of an electric field.Type: GrantFiled: May 24, 2001Date of Patent: February 11, 2003Assignee: Xerox CorporationInventors: Daniel A. Foucher, Raj D. Patel, Naveen Chopra, Peter M. Kazmaier, James Wojtyk, Erwin Buncel
-
Patent number: 6517621Abstract: An ink jet printing process for improving the ozone stability of an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon a porous image-receiving layer having interconnecting voids; and b) applying droplets of a liquid ink on the image-receiving layer in an image-wise manner, the ink comprising water, humectant and a metallized, phthalocyanine dye, the metallized, phthalocyanine dye comprising the formula: MPc(SO3X)a(SO2NRR′)b.Type: GrantFiled: March 21, 2001Date of Patent: February 11, 2003Assignee: Eastman Kodak CompanyInventors: Andrei Andrievsky, Helmut Weber
-
Publication number: 20030024434Abstract: The invention provides an ink composition having improved printing performance. The ink composition includes an ink vehicle, from about 0.1 to about 10% by weight self-dispersed ink pigment, from about 0.1 to about 10% by weight dye, a humectant, and a penetrant, wherein the weight ratio of ink pigment to dye ranges from greater than about 0.75:1 to less than about 2.5:1. Such ink compositions exhibit substantially improved permanence, decreased drying time, and high optical density compared to ink compositions containing only ink pigment or dye.Type: ApplicationFiled: April 11, 2002Publication date: February 6, 2003Inventors: Susan Hardin Butler, Jing X. Sun
-
Patent number: 6514330Abstract: Disclosed is an ink composition for ink jet recording which is free from precipitation and can realize, on a high level, various properties required of ink compositions for ink jet recording. In a copper complex colorant-containing ink for ink jet recording, the free copper ion concentration of the ink composition is brought to not more than 10 ppm. Preferably, ethylenediaminetetraacetic acid or a salt thereof is used to bring the free copper ion concentration to not more than 10 ppm.Type: GrantFiled: April 6, 2000Date of Patent: February 4, 2003Assignee: Seiko Epson CorporationInventors: Miharu Kanaya, Kyoichi Oka, Kazuaki Watanabe
-
Patent number: 6511535Abstract: The invention relates to a method for printing fibrous textile materials using the ink-jet printing technique, wherein the fibrous materials are printed with an aqueous ink that comprises at least one acid dye according to claim 1 and that has a viscosity of from 1 to 40 mPa·s.Type: GrantFiled: January 3, 2001Date of Patent: January 28, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Roger Lacroix, Peter Scheibli, Mickael Mheidle
-
Publication number: 20030015120Abstract: Color ink sets for use in printer systems are provided and formulated to provide improved plain paper and special media performance while maintaining good printing characteristics. The inks and ink sets of the present invention exhibit excellent color performance and lightfastness across a range of media, robust K/Y bleed resistance on plain paper at fast print speeds, as well as excellent printability and reliability.Type: ApplicationFiled: May 4, 2001Publication date: January 23, 2003Inventors: Raymond J. Adamic, Mary E. Austin, Hiang P. Lauw, Dennis P. Parazak, Zia Rehman
-
Patent number: 6508872Abstract: Lightfast additives for inkjet inks are provided. These additives exhibit excellent lightfastness of many dyestuffs (both water-soluble and water-insoluble). The lightfast additives exhibit good water solubility and significant effect on dye and pigment molecules which fade most when exposed to UV, ambient light, etc., and are suitable for improving permanence of inkjet inks, including thermal inkjet ink, piezo inkjet ink, and the like. The lightfast additive comprises a molecule which is composed of three parts or moieties: A—X—B, where (a) moiety A is an aryl sulfonic acid or aryl carboxylic acid, either in acid form or salt form, with or without substituents (e.g.Type: GrantFiled: February 26, 2001Date of Patent: January 21, 2003Assignee: Hewlett-Packard CompanyInventors: Khe C Nguyen, Sivapackia Ganapathiappan
-
Patent number: 6508873Abstract: Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: MvPc(COR1)4 Formula (1) in which: M represents a metal or H; Pc represents a phthalocyanine nucleus; R1 represents OR2; or NR3R4; where R2, R3 and R4 independently represent H or optionally substituted C1-30carbyl; and v is the valence of Pc divided by the valence of M; provided than R1 is other than amino.Type: GrantFiled: January 31, 2001Date of Patent: January 21, 2003Assignee: Avecia LimitedInventors: Andrew Paul Shawcross, Gavin Wright
-
Publication number: 20030010253Abstract: The ink composition of the present invention contains a coloring agent, water, a water-soluble organic solvent which is a liquid at least at temperatures of 40° C. or less, and which has a solubility of 1 wt % or greater with respect to water at a temperature of 20° C., and a saturation vapor pressure of 1.7 Pa or less at a temperature of 20° C. (with said organic solvent being contained in the ink composition at the rate of 10 to 35 wt %), and one or more amidine type compounds. As a result, the present invention provides an ink composition, a recording medium, recorded matter and an ink jet recording method that make it possible to obtain images with a high image quality which are superior in terms of the gas resistance of the recorded matter.Type: ApplicationFiled: March 21, 2002Publication date: January 16, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Yasuhiro Oki, Kazuhiko Kitamura, Tetsuya Aoyama, Kyoichi Oka, Nobuo Uotani, Hiroshi Takahashi, Yuji Ito
-
Publication number: 20030000421Abstract: An ink jet printing process for improving the ozone stability of an ink jet image comprising:Type: ApplicationFiled: March 21, 2001Publication date: January 2, 2003Applicant: Eastman Kodak CompanyInventors: Andrei Andrievsky, Helmut Weber
-
Patent number: 6494942Abstract: An aqueous ink jet ink is disclosed which comprises an effective amount of an azomethine dye having at least one water solubilizing functional group covalently attached thereto. The water solubilizing functional group can either be directly attached to the azomethine dye and/or can be attached to the azomethine dye through an electrophilic coupling moiety. If an organic spacer group is used to separate the water solubilizing functional group from azomethine dye or the electrophilic coupling moiety, then straight and branched chained alkyl groups having from about 1 to 10 carbon atoms is preferred. Preferred azomethine dyes can be pyrazolone azomethines, pyrazolotriazole azomethines, and combinations thereof. Additionally, an aqueous ink jet ink is disclosed comprising an effective amount of a dye-based colorant and an essentially water soluble spiroindane additive for improving light fastness and stability of the dye-based colorant.Type: GrantFiled: September 15, 2000Date of Patent: December 17, 2002Inventors: Larrie A Deardurff, James David White, Christopher Lincoln
-
Publication number: 20020185036Abstract: An ink composition and/or a recording medium are made to contain a compound expressed by general formula (1) and a hydrazide compound. An ink composition thereby obtained does not clog and the ink composition and recording medium thus obtained can offer high quality images that hardly cause yellowing of the resulting recording with superior light resistance. Recording and an inkjet recording method pertaining thereto are also provided.Type: ApplicationFiled: March 21, 2002Publication date: December 12, 2002Applicant: SEIKO EPSON CORPORATIONInventors: Yasuhiro Oki, Kazuhiko Kitamura, Tetsuya Aoyama, Kyoichi Oka, Nobuo Uotani, Hiroshi Takahashi, Yuji Ito
-
Publication number: 20020178969Abstract: An ink jet printing process for improving the ozone stability of an inkjet image comprising:Type: ApplicationFiled: March 21, 2001Publication date: December 5, 2002Applicant: Eastman Kodak CompanyInventors: Andrei Andrievsky, Bruce C. Campbell, Helmut Weber, James A. Reczek
-
Publication number: 20020174802Abstract: Lightfast additives for inkjet inks are provided. These additives exhibit excellent lightfastness of many dyestuffs (both water-soluble and water-insoluble). The lightfast additives exhibit good water solubility and significant effect on dye and pigment molecules which fade most when exposed to UV, ambient light, etc., and are suitable for improving permanence of inkjet inks, including thermal inkjet ink, piezo inkjet ink, and the like. The lightfast additive comprises a molecule which is composed of three parts or moieties: A-X-B, where (a) moiety A is an aryl sulfonic acid or aryl carboxylic acid, either in acid form or salt form, with or without substituents (e.g.Type: ApplicationFiled: February 26, 2001Publication date: November 28, 2002Inventors: Khe C. Nguyen, Sivapackia Ganapathiappan
-
Patent number: 6482256Abstract: An ink set is provided which can realize images having excellent lightfastness and color reproduction. The ink set comprises magenta ink compositions, the magenta ink compositions containing specific compounds as colorants.Type: GrantFiled: April 28, 2000Date of Patent: November 19, 2002Assignee: Seiko Epson CorporationInventors: Miharu Kanaya, Jun Ito, Hiroshi Fukumoto
-
Publication number: 20020157567Abstract: An ink jet ink composition comprising water, a humectant, a polyvalent transition metal complex of an 8-heterocyclylazo-5-hydroxy-quinoline and an anti-kogation material comprising an alkali metal salt of a monobasic organic or inorganic acid. Examples of anti-kogation materials useful in the invention include sodium hexanoate, sodium sulfate, sodium propionate, sodium benzoate, sodium p-toluenesulfonate, sodium acetate, sodium bromide, sodium nitrate, potassium nitrate, lithium nitrate, lithium acetate, tetramethylammonium acetate and tetrabutylammonium bromide.Type: ApplicationFiled: February 27, 2001Publication date: October 31, 2002Applicant: Eastman Kodak CompanyInventors: David Erdtmann, Edgardo Lopez, Richard C. Van Hanehem, Steven Evans
-
Publication number: 20020157568Abstract: An ink for ink-jet comprising: a water-soluble dye; a compound represented by the following formula (1): 1Type: ApplicationFiled: January 17, 2002Publication date: October 31, 2002Inventors: Keiichi Adachi, Junichi Yamanouchi
-
Publication number: 20020155224Abstract: A dye-based, thermal ink jet printer ink is formulated by combining a water miscible organic solvent, water, and a dye, and blending the water miscible organic solvent, the water, and the dye together. The ink has the ability to form printed images on a variety of textile media and can be used to achieve acceptable results on both coated silk and coated cotton substrates. Also included is a method of making the ink jet ink and a method of applying the ink to a recording medium.Type: ApplicationFiled: January 25, 2002Publication date: October 24, 2002Applicant: MacDermid Colorspan, IncorporatedInventors: Peter D. Schmidt, Uyen Q. Thai
-
Publication number: 20020144626Abstract: An inkjet ink is provided that employs one or more water-soluble colorants or water-insoluble colorants, such as solvent dyes, disperse dyes, or pigments. The colorant, whether water-soluble or water-insoluble, is derivatized with one or more crown ethers to render the water-insoluble colorants soluble in water and in water-miscible organic solvents commonly employed in inkjet printing, particularly thermal inkjet printing, and to impart improved properties to the colorants, such as lightfastness, smearfastness, and waterfastness. The inkjet ink comprises a vehicle and at least one crown ether derivatized colorant. The resulting inkjet ink evidences improved print quality properties, compared to inkjet inks containing colorants that are not so derivatized.Type: ApplicationFiled: February 27, 2001Publication date: October 10, 2002Inventor: David M. Schut
-
Publication number: 20020139280Abstract: A ballpoint pen oil-based ink composition, comprising an ink having therein a mixture of at least one phosphoric acid ester having an acid number of 90 to 600 and at least one weakly cationic component selected from the group consisting of:Type: ApplicationFiled: December 27, 2001Publication date: October 3, 2002Applicant: MITSUBISHI PENCIL CO., LTD.Inventor: Shuji Ichikawa
-
Patent number: 6454844Abstract: An ink set is provided which can bring good lightfastness and can realize images having excellent color reproduction. The ink set comprises a yellow ink composition, two magenta ink compositions different from each other in color density, and two cyan ink compositions different from each other in color density. The ink compositions contain respective specific compounds as colorants.Type: GrantFiled: April 7, 2000Date of Patent: September 24, 2002Assignee: Seiko Epson CorporationInventor: Miharu Kanaya
-
Patent number: 6454845Abstract: Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: MvPc(SO2NHAr)x Formula (1) in which: M represents a metal or H; Pc represents a phthalocyanine nucleus; Ar represents an aromatic moiety optionally substituted by one or more groups selected from an optional substituent or optionally substituted C1-30carbyl; v is the valence of Pc divided by the valence of M; and x is from 2.5 to 4.5.Type: GrantFiled: January 31, 2001Date of Patent: September 24, 2002Assignee: Avecia LimitedInventors: Andrew Paul Shawcross, Gavin Wright, Roy Bradbury
-
Patent number: 6436178Abstract: An ink, such as an inkjet ink composition is described which contains at least one colorant, at least one liquid vehicle, at least one humectant, and at least one cyclic amide. Methods to improve the resistance to highlighter smear, minimize banding of a printed image, improve the dry or wet rub resistance of a printed image, and/or improve the waterfastness of a printed image using the ink compositions of the present invention are further described.Type: GrantFiled: December 20, 2000Date of Patent: August 20, 2002Assignee: Cabot CorporationInventor: Jason D. Hosmer
-
Patent number: 6432183Abstract: Aqueous inkjet inks with oil-soluble dyes that are made more soluble in the aqueous vehicle by making a microemulsion in the ink of solvent moieties with both solubilizing groups and hydrophobic groups.Type: GrantFiled: April 19, 2000Date of Patent: August 13, 2002Assignee: Hewlett-Packard CompanyInventor: Alexey S Kabalnov
-
Publication number: 20020096084Abstract: An infrared dye, characterized in that the dye comprises a compound that comprises a molecule that can be described by claim 1.Type: ApplicationFiled: August 10, 2001Publication date: July 25, 2002Inventors: Lachlan Everett Hall, Kia Silverbrook
-
Publication number: 20020078858Abstract: A waterfast, environmentally friendly ink-jet ink, is disclosed comprising from 1% to 90% by weight of a first humectant selected from the group consisting of glycerol, propanediol, and combinations thereof; from 1% to 25% by weight of a second humectant selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, and combinations thereof; from 1% to 20% by weight of a drying agent selected from the group consisting of 1,2-hexanediol, 1,2-pentanediol, and combinations thereof; from 0% to 20% by weight of 2-pyrrolidone; from 0.05% to 10.0% by weight of a waterfastness control dye selected from the group consisting of azo-containing dyes and phthalocyanine-containing dyes; and at least one additional dye present at from about 1.0% to 10.0% by weight. If the waterfastness control dye is an azo-containing dye, such dyes can include Direct Red 227, Direct Red 254, Direct Yellow 86, and Acid Orange 7.Type: ApplicationFiled: September 4, 2001Publication date: June 27, 2002Inventors: Xiaohe Chen, David Tyvoll, George M. Sarkisian
-
Patent number: 6406528Abstract: The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materials, electret materials, inkjet inks, and color filters, wherein the phthalocyanines have a particle morphology with an average length-to-width ratio of more than 2.5:1.Type: GrantFiled: November 16, 2001Date of Patent: June 18, 2002Assignee: Clariant GmbHInventors: Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Heidemarie Menzel, Andreas Harz
-
Publication number: 20020062763Abstract: The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materials, electret materials, inkjet inks, and color filters, wherein the phthalocyanines have a particle morphology with an average length-to-width ratio of more than 2.5:1.Type: ApplicationFiled: November 16, 2001Publication date: May 30, 2002Inventors: Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Heidemarie Menzel, Andreas Harz
-
Publication number: 20020059884Abstract: An ink composition for ink-jet printers is provided which includes a chromophore, a solvent, a co-solvent, a humectant, a surfactant, a viscosity adjuster and an additive, wherein the additive is a nitrogen-containing heterocyclic compound having formula: 1Type: ApplicationFiled: February 26, 2001Publication date: May 23, 2002Inventors: Seung-min Ryu, Seung-soon Jang
-
Patent number: 6391103Abstract: Color imparting compositions for ink jet printer inks, as well as inks with such color imparting compositions therein, which can be used in a commercially available ink jet printer or the ink jet printer of a postage metering system to print machine readable information based indicia, such as postage, on a substrate, such as an envelope, are disclosed. The color imparting composition includes a water soluble black colorant material adapted to absorb light in a wavelength range between about 400 to 650 nm, such as Reactive Black 31 dye or Direct Black 195 dye, and a water soluble cyan colorant material having a molar extinction coefficient of at least 10,000 at a wavelength maximum in the range of about 580 to 750 nm, such as Direct Blue 307, Direct Blue 199 or Acid Blue 9. The weight ratio of the black colorant material to the cyan colorant material in the color imparting composition is in the range of about 50 to 1 to about 5 to 6.Type: GrantFiled: February 2, 2000Date of Patent: May 21, 2002Assignee: Pitney Bowes Inc.Inventors: Judith Auslander, Richard A. Bernard, Claude Zeller
-
Patent number: 6387512Abstract: A photochromic grey coloring 2H-naphtho[1,2-b]pyran of formula (1) wherein R1 is selected from mono-, di- or poly-substituted aryl groups, mono-, di- or poly-substituted naphthyl groups and mono-, di- or poly-substituted heteroaryl groups, wherein at least one substituent is a nitrogen containing group, including amino, C1-C20 and C6-C20 alkylamino, C1-C20 and C6-C20 dialkylamino, C2-C20 dialkenylamino, C2-C20 or C4-C20 di(polyalkenyl)amino, arylamino, diarylamino, C1-C20 alkylarylamino, tetra (C1-C10 linear or branched alkyl) guanidino and cyclic-amino groups and at least one of R7 and R9, which may be the same or different, is selected from C1-C20 N alkylamino C1-C20 N-alkylamido, C1-C20 N,N-dialkylamido, amido, nitro, amino, C1-C20 alkylamino, C1-C20 dialkylamino, C2-C20 dialkenylamino, C4-C20 di(polyalkenyl)amino, arylamino, diarylamino, C1-C20 alkylarylamino, or cyclicamino groups.Type: GrantFiled: March 16, 2001Date of Patent: May 14, 2002Assignee: James Robinson LimitedInventors: David Allan Clarke, Bernard Mark Heron, Christopher David Gabbutt, John David Hepworth, Steven Michael Partington, Stephen Nigel Corns
-
Patent number: 6383276Abstract: An azomethine compound is represented by the formula (I). wherein and R1, L1, L2, R3 and R4 have 20 to 50 carbon atoms in total.Type: GrantFiled: February 29, 2000Date of Patent: May 7, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuyoshi Yamakawa, Masuji Motoki, Naoki Asanuma, Ryo Suzuki, Tadahisa Sato, Hisashi Mikoshiba