38results about "Dye lakes" patented technology

The invention discloses a preparation method of a permanent red pigment for an acid and alkali resistant coating, and belongs to the technical field of pigment preparation, a 2B acid derivative is diazotized and then coupled with 2-hydroxy-3-naphthoic acid, then a calcium chloride aqueous solution is added for color lake to obtain pigment particles, and finally the surfaces of the pigment particles are coated with silicon dioxide to obtain the permanent red pigment for the acid and alkali resistant coating. According to the permanent red pigment for the acid and alkali resistant coating prepared by the preparation method disclosed by the invention, the acid and alkali resistance and environmental stability of the pigment are further enhanced while the excellent characteristics of original pigment red 48: 2 are maintained, and the application performance of the pigment is remarkably improved.

The invention discloses a method for preparing a self-dispersible triarylmethane nano-lake pigment, which comprises the following steps: S1, dispersing cellulose nanocrystals in deionized water, dissolving triarylmethane dyes in water, and preparing a metal salt solution; S2, uniformly mixing and stirring the three; S3, obtaining a lake pigment after centrifugal separation or filtration; S4, dispersing the lake pigment in step S3 in water to obtain a high-concentration dispersed pigment or drying to obtain a pigment powder. The invention adopts cellulose nanocrystals as a dispersant, and cooperates with metal ions to lake the triarylmethane dyes, and the obtained precipitate particle size is at the nanometer scale and has excellent self-dispersibility in water, so that the light fastness of the lake pigment can be improved.

The invention discloses a water-resistant, steaming-resistant and sun-proof pale lotus lake and a preparation method thereof, and belongs to the technical field of pigment preparation. According to the process disclosed by the invention, the sun-proof blue lotus lake is taken as a core material, the composite wall material is prepared from epoxy resin, diisocyanate and polyhedral oligomeric silsesquioxane (POSS), and the composite wall material microcapsule lake is prepared through encapsulation, so that the water resistance and the steaming and boiling resistance of the prepared blue lotus lake are remarkably enhanced. According to the microcapsule lake prepared by the invention, the protection capability of the composite wall material layer on the core material lake is enhanced, and the structural stability and high-temperature tolerance of the microcapsule are greatly improved, so that the microcapsule lake can keep good color stability and structural integrity in the cooking process, and the application range of the sun-proof green lotus lake is expanded.

The invention discloses a method for preparing a bio-based disazo lake pigment, comprising the following steps: S1, aniline compound is diazotized with sodium nitrite under the action of acid solution, and then coupled with 2,5-hydroxyterephthalic acid to prepare disazo-2,5-hydroxyterephthalic acid dye; S2, the disazo-2,5-hydroxyterephthalic acid dye prepared in step S1 is reacted with a metal salt in an aqueous solution to prepare a bio-based disazo lake pigment. In the present invention, the main raw material of the bio-based disazo lake pigment comes from biological fermentation, the preparation method is simple, and the structure has two pairs of adjacent hydroxyl groups and carboxyl groups, which can have a good complexing effect on metal ions, and is easy to form an intermolecular association to stabilize the metal ions. The organic lake pigment prepared by the present invention can tolerate a wide pH range without the freeing of metal ions when used to prepare an aqueous color paste, and does not affect the viscosity and tinting power of the color paste.

The invention discloses a preparation method of a pigment for low-oil-absorption pigment red 57: 1 printing ink, and belongs to the technical field of pigment synthesis. 4-aminotoluene-3-sulfonic acid is diazotized and then coupled with 3-hydroxy-2-naphthoic acid, a carboxyl-terminated hyperbranched polymer and an ionic liquid are added into a pigment crude product compound obtained after the coupling reaction is completed, and the pigment for low-oil-absorption pigment red 57: 1 printing ink is obtained. And finally adding a calcium chloride aqueous solution for color lake. The pigment for low-oil-absorption pigment red 57: 1 printing ink, prepared by the invention, not only has lower oil absorption, but also has the advantages of strong tinting strength, easiness in dispersion and high stability, and has good processing and application performance.

The present invention provides a colored curable resin composition containing a colorant (A), a resin (B), a polymerizable compound (C), a polymerization initiator (D) and an extender pigment (P), and the colorant (A) contains a lake pigment. The invention also provides a color filter and a display device.

To provide a color filter excellent in light resistance.SOLUTION: A color filter according to the present invention includes pigment and binder, and has chloride ion content of 10 ppm or more and 400 ppm or less.SELECTED DRAWING: None

Provided is a photosensitive colored resin composition containing a lake color material, a dispersant, an alkali-soluble resin, a photopolymerizable compound, a photoinitiator, a compound represented by general formula (A), and a solvent.　General formula (A): RxRySi(ORz)2 (wherein Rx represents a hydrocarbon group containing at least one functional group selected from the group consisting of a (meth)acryloyloxy group, a vinyl group, an epoxy group, an amino group, a mercapto group, a ureido group, and an isocyanate group; Ry represents a hydrocarbon group; and each Rz independently represents a hydrogen atom or a hydrocarbon group).

A display device is disclosed. The display device includes: a display panel including a light-emitting element to provide a first light; a light control layer disposed on the display panel; and a color correction layer disposed on the light control layer, wherein the color correction layer includes an organic dye and a metal compound comprising at least one dithiol olefin moiety, the maximum absorption wavelength of the organic dye being about 580 nm to about 600 nm, and the maximum absorption wavelength of the metal compound being about 700 nm or greater.

A display device includes: a display panel including a light-emitting element to provide a first light; a light control layer disposed on the display panel; and a color correction layer disposed on the light control layer, wherein the color correction layer includes an organic dye and a metal compound including at least one dithiolene moiety, a maximum absorption wavelength of the organic dye is about 580 nm to about 600 nm, and a maximum absorption wavelength of the metal compound is about 700 nm or more.

The invention discloses a method for preparing a low oil absorption pigment red 57:1 ink pigment, which belongs to the technical field of pigment synthesis. After 4-aminotoluene-3-sulfonic acid is diazotized, it is coupled with 3-hydroxy-2-naphthoic acid, and a carboxyl-terminated hyperbranched polymer and an ionic liquid are added to the crude pigment compound obtained by the coupling reaction, and finally a calcium chloride aqueous solution is added for color lake formation. The low oil absorption pigment red 57:1 ink pigment prepared by the invention not only has a low oil absorption, but also has the advantages of strong tinting power, easy dispersion and high stability, and has good processing and application performance.

The present invention relates to a polymerizable liquid composition for the manufacture of an optical article, comprising: a) at least one allyl monomer or oligomer, b) at least one initiator for the polymerization of the allyl monomer or oligomer, and c) at least one lake pigment comprising an organic ionic colorant and at least one compound comprising a metal atom having an opposite charge to that of the organic ionic colorant, d) wherein even if the lake pigment is in the form of particles dispersed in the composition, the lake pigment is not comprised in nanoparticles, which are not the lake pigment itself.

Disclosed is a polymerizable liquid composition for the manufacture of an optical article, including: a) at least one allyl monomer or allyl oligomer, b) at least one initiator for the polymerization of the allyl monomer or allyl oligomer, and c) at least one lake pigment including an organic ionic colorant and at least one compound including metal atoms having a charge opposite to that of the organic ionic colorant, d) wherein the lake pigment is not contained in nanoparticles, which are not the lake pigment itself, if the lake pigment is in the form of particles dispersed in the composition.

The invention relates to the technical field of makeup raw materials, and particularly discloses a synthetic lake for makeup and a preparation method of the synthetic lake. The preparation method of the synthetic lake for cosmetics comprises the following steps: mixing a silane coupling agent, dye toner, a pH value regulator, a base material and a solvent, and stirring and reacting at 70-120 DEG C for 4-24 hours to obtain a reaction solution; the feeding ratio of the base material to the silane coupling agent to the dye toner is 1: (0.4-1.2): (0.25-1); the particle size of the base material is 20-300 nm, and the surface hydroxyl density is 4-20 [mu] mol / nm < 2 >; and cooling the reaction liquid to room temperature, then adding water, standing, filtering, collecting precipitate, washing, drying and grinding to obtain the synthetic lake for cosmetics. The synthetic color lake for cosmetics is high in color stability, easy to disperse, not prone to agglomeration and good in stability.

The invention discloses a self-dispersing color lake for a water-based cosmetic material and a preparation process of the self-dispersing color lake. The preparation process comprises the following steps: firstly, carrying out hydrophobic treatment on the surface of the color lake by using a hydrophobic treatment agent to prepare a hydrophobic color lake; then, the lake subjected to hydrophobic treatment and the amphiphilic copolymer are subjected to self-assembly in water, the surface of the lake is subjected to hydrophilic treatment, in the process, a hydrophobic chain segment in the polymer can be spontaneously combined with a hydrophobic group on the surface of the lake, and then a hydrophilic chain segment is spontaneously exposed to the surface of the lake. And finally, preparing the lake capable of self-dispersing in water through a freeze-drying process. According to the method, the double surface treatment technology of the lake is adopted, two plating layers with different properties are constructed on the surface of the lake, the inner hydrophobic layer prevents the lake from making contact with water, the stability of the lake in water is improved, meanwhile, the outermost hydrophilic layer promotes dispersity of the lake in water, and rapid self-dispersion of the lake in water is achieved through the freeze-drying technology.

To provide a pigment composition that enables formation of an ink layer with high lamination strength and superior transparency.SOLUTION: A pigment composition, comprising an azo lake pigment (B1) which is a lake reaction product of an azo dye (A) with calcium, and an azo lake pigment (B2) which is a lake reaction product of the azo dye (A) with barium, wherein the content of the azo dye (A) in the pigment composition is 0 mass% or more and 1 mass% or less. The average primary particle diameter of the pigment composition is preferably 80 nm or more and 500 nm or less.SELECTED DRAWING: None

The present invention provides a yellow inkjet ink capable of recording a yellow image with excellent weather resistance, an image recording method, and an image recorded article having a yellow image with excellent weather resistance. The yellow inkjet ink contains a lake yellow pigment, a yellow pigment other than the lake yellow pigment, a resin, a water-soluble organic solvent, and water.

The application relates to the technical field of lake, and discloses a lightfast blue lake and a preparation method thereof. The lightfast blue lake is prepared from trihydroxyethyl melamine, epichlorohydrin, dodecyl N,N-dimethyl tertiary amine and the like as raw materials through substitution reaction and quaternary ammonium reaction to obtain a quaternary ammonium salt melamine pigment additive. Then, basic violet 5BN, the quaternary ammonium salt melamine pigment additive, basic dye, disodium hydrogen phosphate and the like are added into deionized water for stirring and dispersing, filtering, washing, drying, crushing and grinding to obtain the lightfast blue lake. The lightfast blue lake prepared by the application has stable color light, stable coloring intensity, stable quality and good lightfastness.

A formulation of Atrorosins, and Atrorosin Lakes. Additionally, methods for their production by binding to inert metallic mordant is provided; and further the uses of the lakes as a coloring agent for food items and / or non-food items, and for cosmetics.

The invention provides a light-resistant lake pigment structure, a preparation method, a light-resistant ultraviolet absorption segment-containing lake pigment and application. According to the lake pigment structure, an ultraviolet absorbing group fragment is taken as a light-resistant component, is combined with a cationic dye coloring component, and is complexed by a precipitator to form a stable pigment structure. The preparation method comprises the following steps: grafting an ultraviolet protection fragment with a specific light absorption capability into a cationic dye in a covalent bond combination manner, and complexing in an ionic bond form through a precipitator to prepare the lake pigment with excellent light stability. According to the method, the molecular structure is accurately regulated and controlled, so that the ultraviolet aging resistance is remarkably improved while the excellent coloring performance of the product is maintained. The process is simple and convenient, the product performance is stable, and the technical problems that a traditional lake pigment is poor in light resistance, and an ultraviolet absorbent is prone to migration are effectively solved. The obtained product has excellent weather resistance and processing applicability, and can meet the application requirements in the fields of pigment printing, ink-jet printing, food coloring and painting ink.

Provided is a coloring composition that achieves good mixing stability with a phthalocyanine pigment and one or more substances selected from the group consisting of a lake color material having a triarylmethane skeleton, a lake color material having a xanthene skeleton, and a dye having a xanthene skeleton, and that is capable of shortening the time of a drying process while suppressing bumping.　The present invention provides a coloring composition containing a coloring material, a photopolymerizable compound, a photoinitiator, and a solvent, wherein: the coloring material contains a phthalocyanine pigment and one or more substances selected from the group consisting of a lake color material having a triarylmethane skeleton, a lake color material having a xanthene skeleton, and a dye having a xanthene skeleton; and the solvent contains 5-60 mass% of propyl propionate relative to the total amount of the solvent.

The purpose of the present invention is to provide: a water-insoluble pigment composition in which a natural pigment and a dehydration condensation compound of a fatty acid and an amino acid are compounded; and a food, a cosmetic, a lipstick cosmetic, an eye cosmetic, a nail cosmetic, a base makeup cosmetic, a hair cosmetic, a pharmaceutical, an agrochemical coating material, a printing marker, stationery, a writing instrument, a printing ink, an inkjet ink, a metal ink, a coating material, a plastic coloring agent, a color toner, a fluorescent labeling agent, a fluorescent probe, or a chemical sensor containing the water-insoluble pigment composition.　The present invention was completed when it was discovered that compounding a natural pigment and a dehydration condensation compound of a fatty acid and an amino acid yields a water-insoluble pigment composition.

The present application relates to the field of pigment production technology, and in particular to a high-diffusion environmentally friendly azo pigment and a preparation method thereof. A preparation method of a high-diffusion environmentally friendly azo pigment, firstly prepares a diazo liquid, mixes and dissolves 2-chloro-4-aminotoluene-5-sulfonic acid with ammonia water, adds hydrochloric acid and sodium nitrite aqueous solution to react, and obtains a diazo liquid. Then a coupling solution is prepared, and after mixing 2-hydroxy-3-naphthoic acid with sodium hydroxide, a functional additive and a coupling agent are added to obtain a coupling liquid. Next, a coupling reaction is carried out, and a diazo liquid, a coupling liquid and a surfactant are mixed and reacted, and the reaction end point pH is controlled to be 8.5-9.5 to obtain a coupling product. Finally, a strontium chloride aqueous solution, calcium carbonate are added and filtered, washed with water, dried and crushed to obtain a high-diffusion environmentally friendly azo pigment. The preparation method of the present application significantly improves the various performance indicators of azo pigments through the synergistic effect of various materials and the comprehensive use of technical means, so that it has important application value in the field of environmental protection and high-performance pigments.

The invention relates to a method for improving pigment light stability of pigment red 57 by grinding and compounding diatomite, and belongs to the technical field of pigments and dyes. The method comprises the following steps: mixing diatomite powder with a macroporous structure with pigment red 57 pigment powder with light stability to be improved, putting the mixture into a mortar, and uniformly grinding under the conditions that the temperature is 18-25 DEG C and the relative humidity is lower than 60%; then putting a proper amount of composite powder into a cosmetic aluminum plate, and compacting until the surface is flat; and finally, carrying out chromaticity detection on the sample by adopting a colorimeter and recording data. A light treatment result shows that the pigment-diatomite composite powder treated by the method can significantly improve the light stability problem of the pigment red 57 when the pigment red 57 is used as a pigment.

The invention discloses an aluminum-free, acid-resistant, alkali-resistant and antioxidant lake and a preparation method of the aluminum-free, acid-resistant, alkali-resistant and antioxidant lake. The preparation method of the lake comprises the following steps: uniformly mixing a silicon source, an organic solvent and deionized water, adjusting the solution to be acidic, and stirring for 2-8 hours to obtain a solution A; adjusting the pH value of the solution A to 7-8 by using an alkaline regulator, and continuously stirring to obtain a silicon dioxide colloidal particle solution B; dispersing the plant extract in a solvent, adding a pigment raw material, stirring and dispersing, adding an emulsifier, and stirring to obtain a pigment solution C; adding an amino coupling agent into the pigment solution C, heating and stirring to obtain a solution D; and adding the solution D into the silicon dioxide colloidal particle solution B, uniformly stirring, and carrying out spray drying under the protection of inert gas to obtain the aluminum-free acid-resistant alkali-resistant antioxidant lake. The obtained color lake not only has acid and alkali resistance, but also has oxidation resistance, and the used raw materials do not contain metals such as aluminum, barium, zirconium, calcium and strontium, so that the color lake is environment-friendly and pollution-free.

The invention discloses a green synthesis process of a high-dispersity orange pigment, which comprises the following steps: simultaneously condensing and complexing 5, 6-diaminobenzimidazolone, 2-hydroxy-1-naphthaldehyde and nickel chloride in an acetic acid aqueous solution to obtain pigment slurry, and grinding, pigmenting and post-treating the pigment slurry to obtain the high-dispersity orange pigment. The pigment is synthesized through a single organic solvent one-step method, and the dispersing performance of the pigment is remarkably improved.

Provided is a coloring composition that achieves good mixing stability with a phthalocyanine pigment and one or more substances selected from the group consisting of a lake color material having a triarylmethane skeleton, a lake color material having a xanthene skeleton, and a dye having a xanthene skeleton, and that is capable of shortening the time of a drying process while suppressing bumping.　The present invention provides a coloring composition containing a coloring material, a photopolymerizable compound, a photoinitiator, and a solvent, wherein: the coloring material contains a phthalocyanine pigment and one or more substances selected from the group consisting of a lake color material having a triarylmethane skeleton, a lake color material having a xanthene skeleton, and a dye having a xanthene skeleton; and the solvent contains 5-60 mass% of propyl propionate relative to the total amount of the solvent.

The present invention provides a coloring composition which has good mixing stability with a phthalocyanine pigment, and which can suppress explosion boiling and shorten the time of a drying step, wherein one or more elements selected from a group consisting of a lake pigment having a triarylmethane skeleton, a lake pigment having a xanthene skeleton, and a dye having a xanthene skeleton are selected from the group consisting of a lake pigment having a triarylmethane skeleton, a lake pigment having a xanthene skeleton, and a dye having a xanthene skeleton. The coloring composition according to the present invention contains a coloring material, a photopolymerizable compound, a photoinitiator, and a solvent, and is characterized in that: the coloring material contains a phthalocyanine pigment and one or more types selected from the group consisting of a lake coloring material having a triarylmethane skeleton, a lake coloring material having a xanthene skeleton, and a dye having a xanthene skeleton; the solvent contains propyl propionate in an amount of 5-60% by mass (inclusive) relative to the total solvent.

The application discloses a water-resistant and steaming-resistant light blue lake pigment and a preparation method thereof, and belongs to the technical field of pigment preparation. In the process, the light blue lake pigment is taken as a core material, a composite wall material is prepared from an epoxy resin, a diisocyanate and a cage-type polysilsesquioxane (POSS), and the composite wall material microcapsule lake pigment is prepared through encapsulation, so that the water resistance and the steaming resistance of the prepared light blue lake pigment are remarkably enhanced. The prepared microcapsule lake pigment enhances the protection ability of the composite wall material layer to the core material lake pigment, greatly improves the structural stability and high-temperature resistance of the microcapsule, enables the microcapsule lake pigment to maintain good color stability and structural integrity in the steaming process, and expands the application range of the light blue lake pigment.