12results about "Dye lakes" patented technology

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.

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 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.

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.

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 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.

A high-hydrophobic, low-bleeding color lake powder, a method for preparing the same and a use thereof are provided. A color lake powder is dispersed into water, and a pH value of a system is adjusted to a range of 4 to 5.5. Then surface treating agents such as a silane coupling agent, a titanate coupling agent, a hydrogenated lecithin and an aliphatic acid are used to modify the color lake powder. Then pulverizing and drying the resultant to obtain the modified color lake powder.

Provided is a photosensitive colored resin composition for color filters that contains a coloring material, a binder resin, a monomer, a photoinitiator, and a solvent, wherein the coloring material is at least one material selected from the group consisting of dyes and lake coloring materials, and the binder resin contains a copolymer that has a polymer structure including 5-25 mass% of a structural unit derived from hydroxyalkyl (meth)acrylate and represented by general formula (A), that has a weight-average molecular weight of not less than 11000, and that has an acid value of 60-130 mgKOH / g. (In general formula (A), RA represents a methyl group or a hydrogen atom, and RB represents a C1-C4 alkylene group.)

To provide an ethanol-based pigment dispersion small in a dispersed particle size of a pigment, and excellent in storage stability at an ordinary temperature and storage stability at a high temperature, and an ethanol-based ink excellent in jetting property and decap property when using as an inkjet recording method.SOLUTION: An ethanol-based pigment dispersion includes: an aluminum lake pigment (A); and a pigment dispersant (B), where the pigment dispersant (B) is a polymer including a constitutional unit derived from an anionic group-containing monomer (b-1), and a constitutional unit derived from an oxyalkylene group-containing hydrophilic nonionic monomer (b-2). Also provided is an ethanol-based ink for inkjet-recording containing the ethanol-based pigment dispersion.SELECTED DRAWING: None