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8137416 |
Acid dyes
Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates are described.
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8097047 |
Fabric color rejuvenation composition
Rejuvenation compositions including a reactive dye are disclosed for the one-shot rejuvenation of the color for dark-colored textile fabrics and garments formed therefrom. The rejuvenation...
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7931702 |
Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt
Disclosed is an azo compound represented by the general formula (1) or a salt thereof: wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n...
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7927384 |
Acid dyes
Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates are described.
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7909892 |
Aqueous dye solutions
The present invention relates storage stable aqueous dye solutions comprising a) 5 to 30% by weight of a dye of the formula in which K is a residue of a coupling component of the acetoacetanilide,...
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7717965 |
Mixtures of reactive dyes and their use
Dye mixtures that comprise at least one dye of formula together with at least one dye from the group of formulae wherein the radicals have the definitions given in the claims, are suitable, with...
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7713311 |
Liquid direct dye formulations
The present invention relates to aqueous liquid formulations comprising 5-30% by weight of a dye composition comprising 25-85% by weight of Direct Brown 4415-75% by weight of Direct Yellow 11...
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7708786 |
Dye mixtures of fiber-reactive azo dyes, their preparation and use
Reactive dye mixtures comprising one or more dyes of the general formula (I), one or more dyes of the general formula (II) and optionally one or more dyes of the general formula (III) where D1, D2,...
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7704287 |
Reactive red dye composition and application thereof
The present invention provides a reactive red dye composition comprising (A) 3% to 97% by weight of a reactive azo dye of the following formula (I), wherein W, D1 and D2 are defined the same as the...
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7682406 |
Disazo dyes and dye compositions for shading white paper
The invention relates to novel dyes of the formula (1) in which D represents a phenyl or naphthalene residue which is substituted by one or two sulphonic Acid or carboxylic acid groups and,...
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7638610 |
Self-dispersible metal complex colorant comprising azo moiety
A self-dispersible metal complex colorant is represented by formula 1, which has improved storage stability, may embody various colors and has improved fastness, such as light resistance, water...
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7637964 |
Dye mixtures of fiber-reactive azo dyes, their preparation and their use
Reactive dye mixtures which comprise one or more dyes of the indicated general formula (I) and one or more dyes of the hereinbelow indicated and defined general formula (II) where D1, D2, D3, R0,...
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7572301 |
Fibre-reactive dyes, their preparation and their use
Reactive dyes of formula wherein Q1 and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl,D1 is the radical of a diazo component, which is itself a mono- or...
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7559959 |
Bridged monoazo dyes
Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.
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7553359 |
Stable liquid formulations of anionic dyes
The present invention concerns concentrated aqueous solutions of anionic disazo dyes, comprising salts and or the free acids of anionic dyes of the formula and 2-(2-butoxyethoxy) ethanol wherein...
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7553340 |
Reactive dyes, a process for their preparation and their use
Reactive dyes of formula (1) wherein R1 is hydrogen or unsubstituted or substituted C1-C4alkyl, R2 is hydrogen; C1-C4alkyl; C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by...
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7540883 |
Reactive yellow dye composition
The present invention discloses a reactive yellow dye composition comprising component (A) and component (B). The component (A) is a reactive azo dye represented by the following formula (I) or...
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7531009 |
6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives
The present invention provides 6-azo-5,5′-dihydroxy-7,7′-disulfo-2,2′-dinaphthylamine
derivatives, their use as dyes, dyed paper and formulations comprising them.
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7438753 |
Diazo dyestuff compounds and their use
The present invention relates to a diazo dyestuff compound of the following formula (I) wherein, M is H, Na, or Li. The formula (I) compound is particularly suitable for using as a component in a...
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7387647 |
Dye composition and the use thereof
A dye composition, comprising (A) at least one disazo dye selected from the formula (I) or (II), wherein R, R1, R2, D1 and D2 are defined as in the specification; and (B) a diazo dye of the formula...
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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 A1 and A2 is...
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7341607 |
Yellow anionic disazo dyes
The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates for their preparation and the use of these dyes for dyeing natural or...
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7276268 |
Poly-azo compound, and polarization film having said compound
Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl...
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7247195 |
Dye sets for ink-jet ink imaging
The present invention is drawn to dye sets for formulating ink-jet inks, including ink sets having six ink-jet inks. In one embodiment, the dye set can comprise a yellow dye for formulating a...
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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, Zn...
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7217803 |
Benzimidazole-pyridone-based azo dyes
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...
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7078497 |
Disazo dyes, and copper complexes thereof, for dyeing paper
The dyes of formula (1) according to claim 1 and the copper complexes of dyes of formula (2) according to claim 9 or the mixtures of mono-copper complex with the bis-copper complex are excellently...
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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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6984723 |
Use of copper complexes of disazo dyes for dyeing natural and synthetic material
Use of the mono-copper complex of a dye of formula (1) wherein Z1, Z2, R1, R2, R3, R4, X, n and m are as defined in the claims, and mixtures thereof with the bis-copper complex of such a dye, for...
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6930178 |
1:2 chromium complex dyes
The present invention relates to novel 1:2 chromium complex dyes, processes for their preparation and their use for dyeing or printing fiber materials containing hydroxyl groups or containing...
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6844428 |
Use of disazo compounds
The invention relates to the use of disazo compounds according to formula (I) wherein all substituents are as defined in claim 1 salts thereof and mixtures of these compounds for dyeing or printing...
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6767394 |
Dye composition
A composition comprising a dye of Formula (I) and a dye of Formula (II) or salts thereof, and use of the composition in ink jet printing
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6727351 |
Azoxy dyes and their Cu complexes
Azoxy dyes of the general formula I in the form of the free acid wheren is 0 or 1, eachR1 is selected from the group consisting of methoxy, hydroxyl and carboxyl, eachR2 is selected from the group...
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6712862 |
Granular compacts, their production and use
Granular compacts (G) of a mixture of (A) at least one water-soluble dye or optical brightener, and(B) extender and, optionally,(C) at least one hydrophilic surfactant and/or(D) further additives,...
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6660048 |
Aqueous dye solutions
The aqueous dye solutions of the composition shown in claim 1 are distinguished by a good storage stability and are suitable for dyeing paper in red color shades.
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6511535 |
Method for printing fibrous textile materials using the ink jet technique
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...
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6365719 |
Bridged disazo compounds
Compounds of formula (I) with the meanings of D, R1, R2, X and Y as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.
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6254671 |
Very green-shade yellow metallized disazo pigment
In one embodiment, the present invention relates to a green shade yellow pigment composition comprising a compound having the formula: ##STR1##wherein R1 and R2 are independently hydrogen, halogen,...
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6221114 |
Colorant salts and their use in dyeing polymeric material
Dye salts which are free from fiber-reactive radicals and have the formula ##STR1##where Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing...
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6130320 |
Acid disazo dyes as well as sulphonamides as their intermediate product
Disazo dyes of formula (I) where one of the two symbols X1 and X2 means hydroxy and the other amino and R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the specification. The invention also...
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6120561 |
Process for the preparation of low-salt, liquid dyestuff preparations
Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by: a) diazotization of an aromatic amine, b) 2-fold coupling of the diazo component...
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6084078 |
Disazo dyestuffs for dyeing cellulosic materials
The novel disazo dyestuffs of the formula (I) in which the substituents and indices have the meanings given in the description, are outstandingly suitable for dyeing cellulosic materials in...
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6080209 |
Stable colorant compositions
Stable aqueous dye compositions containing at least one anionic colorant and at least one pigment and a polyanionic thickening agent. The dye compositions may be used to dye leather.
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6031083 |
Disazo dyestuffs
The new disazo dyestuffs of the formula (I) ##STR1## wherein the substituents and the indices have the meanings given in the description,wherein more than 25 equivalent % of all the M cations in...
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5922085 |
Preparation of a dye for coloring protein-based fibers and cellulose-based materials from the oxidation products of the manufacture of a triphenylmethane dye
A process of preparing a dye composition and a resultant dye composition. The process includes preparing a mixture comprising a triphenylmethane dye and oxidation products by reacting...
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5883234 |
Process for dyeing cellulosic materials with disazo dyestuffs
The novel process for dyeing cellulosic materials with disazo dyestuffs of the formula ##STR1## in which the substituents NHR1 and NHR2 are in each case in the 6- and/or 7-position and R1, R2, m,...
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5834602 |
Acid disazo dyes
Disazo dyes of the formula ##STR1## where the ring A may be benzofused, X is hydrogen or C1 -C4 -alkyl, R1 is hydrogen, C1 -C4 -alkyl, halogen, carboxyl, C1 -C4 -alkoxycarbonyl or hydroxysulfonyl,...
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5704951 |
Mixtures of blue-dyeing fiber-reactive dyes and their use for dyeing hydroxy-and/or carboxamido-containing fiber material
A solid or dissolved dye mixture of azo dyes having fiber-reactive groups of the vinyl sulfone series, yielding dyeings of blue color shade, comprising one or more copper formazane dyes of the...
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5700296 |
Azo compound and a polarizing film containing the same
An azo compound of the following formulae (I) or (II): ##STR1## wherein Q1 represents a phenyl group or a naphthyl group, Q2 represents a phenyl group; R represents hydroxy group; R1 and R2 each...
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