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7387667 |
Black dye composition and black ink composition
The present invention relates to a black dye composition, comprising:
(a) a compound of the following formula (I),
(b) a compound of the following formula (II),
...
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7364597 |
Metal complex colorant comprising azo moiety
A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like:
wherein each of A 1 and A 2 is...
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7323045 |
Magenta ink composition
Objects of the present invention are to provide a magenta ink composition having good light-fastness and gas resistance, and excellent moisture resistance and clogging resistance, and to provide a...
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7309389 |
Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic medias
The invention is directed to an electrophotographic toner or developer, powder coating, ink jet ink or an electronic media having an azo colorant prepared by conducting the diazotization of...
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7301013 |
Azo compounds
The present invention relates to novel dyestuffs of formula (I) ##STR00001## wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these...
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7297200 |
Water-soluble yellow azo dyes
A dye of the formula (2) and a process for preparing the same, wherein the radicals are as defined in the specification
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7288143 |
Water-based ink, ink tank having the same, and ink-jet recording process
A water-based ink containing a water-soluble dimer coloring material having a molecular structure having two chromophores and being symmetrical via a decomposable linking group, a water-soluble...
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7288142 |
Black dyes composition for ink-jet inks
The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I)
wherein, R 1 is —SO 2 CH 2 CH 2 OSO 3 H or —SO 2...
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7279033 |
Ink jet and ink jet recording method
An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.
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7273520 |
Ink set for ink jet printing
Ink set for ink jet printing comprised of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the yellow ink contains a mixture of at least one yellow dye with reddish...
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7256222 |
Radiation-curable ink composition and image recording method
To provide a radiation-curable ink composition that can form a high-quality image on not only liquid absorbing materials to be recorded but also non-liquid absorbing materials to be recorded, is...
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7252707 |
Inkjet recording ink set
An inkjet recording ink set comprising at least two inks, wherein each of the inks contains at least one dye having an anionic group, and even when any two inks in the ink set are mixed,...
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7250079 |
Coloring composition and inkjet recording method
The invention provides a water-soluble ink capable of forming an image having good color hue and high fastness in various use and environmental conditions, which comprises a coloring composition...
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7247196 |
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
To provide an ink jet black ink which has a favorable tint for ink jet black ink, provides high ozone fastness, a high image density, and high sticking recovery property, and is capable of...
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7223805 |
Light-resistive dispersant and ink composition containing the same
A 2-methoxyphenol derivative may be used as an ultraviolet (UV) light absorbing dispersant and, an ink composition may include the 2-methoxyphenol derivative as a light-resistant dispersant. The...
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7220843 |
Methanesulfonamide azo dyes
This invention relates to monoazo, disazo and trisazo colorants of the formula (I)
where
M represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn,...
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7198665 |
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density...
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7173114 |
Lightfast colorant and lightfast ink composition including the same
A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional...
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7160377 |
Aqueous, colloidal gas black suspension
Aqueous, colloidal gas black suspension containing:
(a) a gas black, (b) an azo compound of the formula 1
(c) and water. The aqueous, colloidal gas black suspension is produced by dispersing...
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7141106 |
Ink jet printing composition comprising a dye containing hydrazine or hydrazide
A composition comprising:
(a) a liquid medium; and (b) a compound comprising one or more chromophoric groups and one or more hydrazine or hydrazide groups;
wherein the liquid medium...
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7132516 |
Mono-or bisazo copper complex dyestuffs
This invention relates to coppered azo dyestuffs containing an alkyl-, aryl or alkoxyalkyl sulfamyl group on one moiety of the molecule and an alkyl-, aryl or alkoxyalkyl ammonium sulfonate or...
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7125966 |
Azo compounds
The present invention relates to novel dyestuffs of formula (I) wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these dyestuffs and...
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7125443 |
Lightfast colorant and lightfast ink composition including the same
A lightfast colorant and a lightfast ink composition include a lightfast colorant that is derived by covalently binding a benzophenone derivative and a conventional colorant and that imparts...
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7101983 |
Azo dyes
The present invention relates to novel dyestuffs of formula (I)
wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these dyestuffs...
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7097699 |
Composition for printing recording materials
A composition for printing recording materials comprising a) at least one temporarily water-soluble dye with one SO 2 CH 2 COOM group being present in the molecule; b) water or a medium including a...
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7094277 |
Counterion use for reduction of decap and for improvement of durability of inkjet images
A dye for ink-jet printing on both hydrophilic and hydrophobic papers. The dye includes a chromophore tonically coupled to a counterion. One of the chromophore and the counterion includes a...
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7083671 |
Metallized dye-based ink-jet inks with improved ozone fastness
In accordance with embodiments of the present invention, an ink-jet ink can comprise a liquid vehicle including a halophenol and a metallized dye. Alternatively, a system for printing images with...
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7083664 |
Inkjet color ink
An inkjet color ink comprising: an aqueous medium; at least one yellow dye having a λmax of from 390 nm to 470 nm and an [I(λmax+70 nm)/I(λmax)] ratio of an absorbance I(λmax+70 nm) at λmax+70...
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7066993 |
Colorant composition
The invention relates to a colorant composition that substantially comprises a colorant of formula (1) and a colorant formula (2) or (3). The magenta colorant mixture is advantageously used in...
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7066991 |
Ink jet ink set
An ink jet set comprising: a) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye; b) a magenta ink comprising a carrier and an anthrapyridone magenta dye or metal complex...
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7060124 |
Dye combination
The invention relates to a dye mixture consisting essentially of one dye of formula (4) and a dye of formula (5). The black dye mixture is advantageously used for ink jet printing and provides high...
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7041162 |
Ink composition and ink jet recording method
The present invention provides an aqueous ink composition comprising a color microparticle dispersion including an oil-soluble dye, a hydrophilic organic solvent and a perfluoroalkylenesulfonic...
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7025817 |
Ink, recording method, recording unit, ink cartridge, and recording apparatus
An ink-jet ink comprises water, a water-soluble coloring material having a molecular weight of 600 or less as a free acid form, at least two kinds of water-soluble organic solvents, and urea or a...
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7011699 |
Inkjet ink, inkjet recording method and production method of inkjet ink
The invention provides an inkjet ink which exhibits, at the printing particularly on paper, excellent ink permeability to eliminate the problem of soiling immediately after printing, can be...
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6997978 |
Magneta ink-jet inks
The present invention is drawn to magenta dye blends and magenta ink-jet inks that can be used in ink sets for creating photo quality images. The dye blend can comprise a nickel-containing azo dye...
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6991676 |
Dye sets and ink sets for ink-jet ink imaging
The present invention is drawn to dye sets for formulating ink-jet ink sets, and to specific ink sets. The dye set can comprise cyan colorant including a phthalocyanine dye; magenta colorant...
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6964700 |
Ink for use in ink jet recording and ink jet recording method utilizing the same
An ink for use in ink jet recording which contains a dye and a pigment as colorants. The pigment is a self-dispersible pigment in which at least one anionic group is bonded directly or through...
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6929688 |
Monoazo dyes and their preparation and use
Monoazo dyes of general formula (IV)
wherein R 1 , R 2 , R 3 , X, M and n are as described in the specification, are excellent dyes for dyeing and printing of cellulose containing materials...
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6872243 |
Phase change inks containing gelator additives
Disclosed is a phase change ink composition comprising an ink vehicle, a colorant, and a nonpolymeric organic gelator selected from the group consisting of anthracene-based compounds, steroid...
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6843838 |
Inkjet ink, dye set, ink set, and method of use thereof
The present invention provides inkjet inks, dye sets, and inkjet ink sets for use in inkjet printing methods. The inkjet inks and inkjet ink sets of the present invention can provide excellent...
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6824598 |
Inkjet ink sets with combinations of light dye load and dark dye load
An ink set for ink-jet printing, having at least one ink of the ink set comprising a light dye load and a dark dye load with both the light dye load and the dark dye load being one color. The one...
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6808555 |
Lightfade-stable ink formulations based on blends of rhodamines and metal-containing dyes
The present invention provides inkjet ink compositions having high chroma and lightfastness characteristics as well as methods for the making and use thereof In one aspect of the present invention,...
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6793722 |
Inkjet ink composition with high chroma
Inkjet ink composition with high chroma. The inkjet ink composition includes 0.1 to 15 weight % of Acid Red 92; at least one red colorant other than Acid Red 92; and an aqueous solution medium. By...
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6712890 |
Metallized azo dyes and inks for ink-jet printing containing same
A water soluble compound of Formula (1) or a salt thereof: wherein: Y is an electron withdrawing group; Y 1 is H, alkyl or aryl, OR or NR 2 in which each R independently is H, optionally...
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6706104 |
Ink set, ink jet recording method, recording unit, ink cartridge, ink jet recording apparatus, bleed-alleviating method, and method for improving fixability of black image
An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a...
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6669740 |
Dye preparations comprising azo dyes
Dye preparations comprising, based in each case on the weight of the preparation, from 0.1 to 30% by weight of one or more dyes from the class of the mono- or polyazo dyes containing no acidic...
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6648951 |
Waterfest, environmentally friendly inks adapted for point-of-sale ink-jet applications
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...
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6596067 |
Colorant mixture
A colorant mixture of C.I. Acid Red 289 and C.I. Reactive Red 23 and optionally a shading colorant is used for magenta recording fluids.
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6562115 |
Azo dyes and their preparation and use
Monoazo dyes of formulas (III) wherein R 1 , R 2 , R 3 , D 1 and M are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and...
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6558459 |
Derivatization of dyes/pigments with crown ethers and inkjet printing fluids containing the same
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...
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