900results about "Organic dyes" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

The invention relates to the technical field of data processing, in particular to a liquid disperse dye for polyester fabrics and a use method thereof, and the dye comprises an azo or anthraquinone disperse dye main agent subjected to superfine grinding, a nonionic and anionic compound dispersant system, a fiber plasticizer and a stabilizer. According to the preparation method, molecular dynamics simulation and mesoscale dissipative particle dynamics simulation are combined, the synergistic effect of a dispersant adsorption configuration and double electric layer potential is quantified, and a nonlinear association rule of dynamic particle size control and dispersion stability is established; a multi-physics field coupling model is adopted to integrate fiber humidity, temperature gradient and pressure distribution parameters, and cross-scale collaborative optimization of microscopic interface action and macroscopic process parameters is achieved. According to the method, repetitive experiment iteration is replaced by digital design, the formula development period is remarkably shortened, the dyeing uniformity and the batch-to-batch reproducibility are improved, and the method is suitable for continuous dyeing production of high-density and superfine polyester fabrics.

The invention relates to a gray dye composition, which consists of at least one yellow dichroic dye, at least one red dichroic dye, at least one purple dichroic dye and at least one blue dichroic dye, and has uniform total absorption in a visible light region when being mixed with a parent liquid crystal composition for use. The liquid crystal composition has high contrast when applied to light valves, switchable windows, switchable mirrors and guest-host displays.

The present invention provides a composite pigment, which comprises a first cholesteric liquid crystal pigment and a second cholesteric liquid crystal pigment. The above-mentioned first cholesteric liquid crystal pigment is a pigment having a center wavelength of a selective reflection band in the range of 400 nm or more and 800 nm or less and a selective reflection bandwidth of 150 nm or less. The above-mentioned second cholesteric liquid crystal pigment is a pigment having a selective reflection bandwidth of 200 nm or more in the range of 400 nm or more and 800 nm or less. At least a part of the selective reflection band of the above-mentioned first cholesteric liquid crystal pigment overlaps with the selective reflection band of the above-mentioned second cholesteric liquid crystal pigment. With respect to the total amount of the above-mentioned first cholesteric liquid crystal pigment and the above-mentioned second cholesteric liquid crystal pigment, the content of the above-mentioned first cholesteric liquid crystal pigment is more than 0% by weight and 30% by weight or less.

The invention belongs to the field of medical instrument coloring agents, and provides a natural anthocyanin endoscope coloring agent. According to the invention, the innovative design of combining a ternary color-stabilizing compound formed by anthocyanin, a co-chromophore and hydroxypropyl beta cyclodextrin with a chitosan sodium alginate polysaccharide system and a composite buffer system is adopted, and the viscosity is controlled to be 200-320 millisecond, the particle size of spray droplets is 40-60 microns, and the thickness of a thin film is 10-30 microns through specific molar ratio compatibility and a genipin crosslinking technology. Through accurate regulation and control, the excellent performance that a double-network thin layer is formed under the calcium ion environment that the absorbance retention rate at 520 nanometers is not lower than 90% and the elution rate is not lower than 90% under the irradiation of hundred thousand lux white light is achieved, the technical problems that a traditional endoscope coloring agent is poor in safety, low in stability and insufficient in mucous membrane contrast ratio are solved, and the wide clinical application value is achieved.

The invention discloses a low-staining low-viscosity waterborne polyurethane macromolecular coloring agent and a preparation method of the low-staining low-viscosity waterborne polyurethane macromolecular coloring agent. Comprising the following components in parts by weight: 15 to 30 parts of aliphatic diisocyanate, 15 to 30 parts of micromolecular dye, 10 to 30 parts of polypropylene glycol and / or dihydroxy silicone oil, 25 to 50 parts of polyethylene glycol, 1 to 3 parts of micromolecular dihydroxy compound chain extender, 0.05 to 0.3 part of catalyst, 90 to 140 parts of acetone and 50 to 300 parts of water. By designing the hydrophilicity and proportion of the soft and hard segments of the polyurethane coloring agent, the waterborne polyurethane macromolecular coloring agent color paste which is low in staining, easy to clean, less than 1000mpas in product viscosity, more than 5% in color concentration and more than 5% in dye equivalent and good in compatibility is finally obtained, and the waterborne polyurethane macromolecular coloring agent color paste can meet the requirements of liquid product coloring agents such as clothing care and household cleaning agents. The cleaning agent can also be used for liquid cleaning agent products for body care and catering.

The invention relates to the technical field of polymer dye synthesis, in particular to a polymer coloring agent based on a binary acid chromophoric monomer, a color master batch, a fiber and a preparation method of the polymer coloring agent. The structural formula of the diacid chromophoric monomer is as follows: # imgabs0. The chromophoric monomer has extremely high thermal stability, and can maintain the chemical structural integrity and chromophoric performance in a high-temperature environment (250 DEG C). The heat-resistant characteristic is mainly derived from a highly stable aromatic skeleton formed by a parent nucleus through an expanded conjugated system and a rigid plane structure, and heat vibration energy is effectively dispersed; in addition, a thermal stable group (an all-carbon skeleton) is introduced through side chain modification to form a steric hindrance effect, and molecular movement at high temperature is inhibited. Due to the unique heat resistance of the monomer, the monomer can be completely matched with a high-temperature processing window (240-300 DEG C) of a polyester melt polymerization process, and a polymer-dye composite system with a stable structure is constructed through covalent bonding in ester exchange and polycondensation processes.

To provide a printing ink containing an isoindoline pigment, in which discoloration of the printing ink is suppressed over time and storage stability is excellent.SOLUTION: The problem is solved by a printing ink containing an isoindoline pigment and at least one amine (A) selected from the group consisting of primary amines and secondary amines, where the amine (A) has a molecular weight of 1000 or less. The amine (A), however, does not include alkanolamines, amides, and melamine.SELECTED DRAWING: None

An “inverse” precipitation route to precipitate aqueous soluble species with copolymers as nanoparticles having a hydrophilic, polar core and a less polar shell is described.

The invention discloses a reversible thermosensitive polymer functional dye and a preparation method thereof, and belongs to the technical field of thermosensitive color-changing dyes, the reversible thermosensitive polymer functional dye comprises a color-changing core material and a transparent microcapsule, and the transparent microcapsule coats the color-changing core material. The color-changing core material is prepared from the following components: 8 to 12 parts of color-changing dye ODB, 15 to 28 parts of a color developing agent BFPA, 210 to 400 parts of a solvent benzyl phenyl ether, 6 to 15 parts of an antioxidant, 125 to 220 parts of montmorillonite subjected to surface treatment by an organosilane modified organic cationic surfactant, 56 to 82 parts of a nonionic polymer suspending aid and 5 to 12 parts of an ultraviolet light absorber; the capsule wall of the transparent microcapsule is prepared from a transparent polymer. The reversible thermosensitive polymer functional dye can improve the acting force of a color developing agent BFPA and a solvent benzyl phenyl ether, so that a complex of BFPA and thermosensitive black ODB is separated as soon as possible, and the color contrast of the reversible thermosensitive polymer functional dye in two states of color development and decoloration is improved.

To provide an optical filter having high permeability of visible light and high shieldability of near infrared light and ultraviolet light, specifically with high permeability of blue light, while suppressing a deterioration in shieldability of ultraviolet light at a high incident angle.SOLUTION: An optical filter includes: a substrate satisfying prescribed spectral characteristics; and a dielectric multilayer laminated at least on one principal side of the substrate. The substrate includes a resin film including: a pigment (U) having a maximum absorption wavelength at 360-395 nm in dichloromethane; a pigment (A) having a maximum absorption wavelength at 600-800 nm in dichloromethane; and a resin.SELECTED DRAWING: Figure 1

The present application provides biodegradable microcapsules, based on specific poly ß-amino ester shells that can encapsulate and retain cargoes such as, lipophilic, or hydrophobic core materials comprising fragrances, butters, essential or other oils; or oil solubilized ingredients, process of making said biodegradable microcapsules and their applications in various industries. Present application further provides biodegradable shell materials that show evidence of biodegradation or non-persistence in aquatic based and / or soil or compost based environments, and which are stable on storage before use.

The invention relates to the technical field of dye preparation data processing, in particular to a liquid disperse dye suitable for high-temperature and high-pressure dyeing and a preparation method thereof.The dye comprises a composite dye matrix, a dispersion stabilizing system and a solvent medium, disperse black dye is formed by compounding disperse purple 93, disperse orange 288 and disperse blue 291 in the ratio of 1, and the disperse black dye is a liquid disperse dye suitable for high-temperature and high-pressure dyeing. And a nano-scale dispersion system is constructed by combining the synergistic effect of hexadecylamine / octadecylamine polyoxyethylene ether and lauryl amine polyoxyethylene ether. According to the preparation method, on the basis of a dynamic behavior prediction model, micelle formation dynamic data in a premixing stage, viscosity and particle size associated data in a shearing stage and thixotropic index change data in a homogenizing stage are integrated, and a surfactant proportion optimization instruction is generated; according to the invention, the stability of the dispersoid structure is controlled, the dyeing uniformity and color fastness are improved, and the wastewater COD discharge load and the production cost are reduced.

The invention belongs to the technical field of pigments for water-based systems, and particularly relates to a pigment modifier for a water-based system and application of the pigment modifier for the water-based system, 4-aminobenzylphosphonic acid is adopted as the pigment modifier for the water-based system, and-PO3H2 hydrophilic groups are grafted to the surfaces of pigment particles through specific diazotization reaction of the pigment modifier for the water-based system, so that the pigment modifier for the water-based system is obtained. The organic pigment is endowed with electrostatic stability in a water-based system, so that the pigment can form a stable water-based dispersion under the condition of not using an additional dispersing auxiliary agent, and the brilliance and tinting strength of the pigment are further improved.

The problem to be solved by the present invention is to provide an aqueous pigment dispersion that can maintain superior dispersibility and long-term storage stability, and that can be used for producing printed matter superior in color development in printing on plain paper. The present invention relates to an aqueous pigment dispersion that contains a pigment including C.I. pigment red 150, a water soluble organic solvent, and a radical polymer having an aromatic ring structure or a heterocyclic structure and having an acid value of 50 to 120 mgKOH / g, acid groups in the radical polymer being partially or entirely neutralized with a basic compound, the radical polymer being contained at a mass ratio to the pigment in the range of 0.001 to 0.1.

The invention relates to the technical field of dimming films, in particular to a black dichroic dye composition, a PDLC (Polymer Dispersed Liquid Crystal) dimming film as well as a preparation method and application of the PDLC dimming film. Comprising a compound of formula D1, a compound of formula D2 and a compound of formula D3; formula D1; formula D2; formula D3; the black dichroic dye composition is a total anthraquinone black dye composition, the value a of the prepared dimming film is-5-5 and the value b of the prepared dimming film is-5-5 at 0V, and Eab is smaller than or equal to 2 at 0V and 48V, and compared with azo dichroic dye, the black dichroic dye composition has better heat insulation and sun protection performance and meets the use requirements in automobile panoramic skyscreens, skylight dimming glass and building glass.

The invention provides a reactive dye with a high fixation rate and a preparation method thereof. The reactive dye is prepared from the following raw materials in parts by mass: 25 parts of modified reactive dye, 0.3-0.7 part of a metal ion agent and 60-80 parts of water, wherein the modified reactive dye is obtained by inclusion of reactive dye molecules with beta-cyclodextrin-pyridine carboxylic acid, and beta-cyclodextrin and pyridine carboxylic acid in the beta-cyclodextrin-pyridine carboxylic acid are connected through an alkyl chain; metal ions provided by the metal ion agent can be chelated with the picolinic acid. Reactive dye molecules and beta-cyclodextrin-pyridine carboxylic acid form an inclusion structure, the hydrolysis probability of active groups is reduced, and an alkyl chain regulates steric hindrance and molecular spacing, so that pyridine nitrogen and carboxylic acid more efficiently form a more stable chelate with metal ions and further form coordinate bonds with hydroxyl groups on the fiber surface, and the fixation rate of the reactive dye is improved.

The invention relates to a coloring composition, a color photoresist, a color filter and a display device, the coloring composition comprises a dye and a dispersant, the structural formula of the dye is shown as follows: at least one of X, R1, R2, R3, R4, X1, X2, X3 and X4 in dye molecules is configured to be connected with the dispersant through a chemical bond. According to the coloring composition provided by the invention, the dye and the dispersing agent can be connected through chemical bonds, so that precipitation or migration of the dye in the color filter prepared from the coloring composition is avoided, the weather resistance of the dye in the color filter is improved, and the reliability of the display device is improved.

A method of preparing a microcapsule composition include the steps of: (a) providing a microcapsule formed of an encapsulating polymer having a primary or secondary amine group, (b) providing a deposition agent having a reactive group, and (c) forming a covalent bond between the primary or secondary amine group and the reactive group to graft the deposition agent to the encapsulating polymer. Also disclosed are consumer products containing these microcapsules.

The invention discloses a washable improving auxiliary agent for daily chemical dye and a preparation method thereof, and belongs to the technical field of daily chemical products. The washable improving auxiliary agent for the daily chemical dye comprises the following raw materials in percentage by weight: 10%-30% of an emulsifier, 5%-10% of an anti-staining agent, 4%-6% of an emulsifying auxiliary agent, 2%-5% of a humectant, 0.1%-3% of a pH regulator, 0.01%-0.02% of a preservative and the balance of deionized water. By adding the washable assistant, the dye can be well dispersed and developed in water, the chromaticity of the original color of the dye is not influenced, and the washable performance of the dye is fully improved. In addition, the adopted biodegradable raw materials are environmentally friendly. The washable lifting auxiliary agent can be applied to improving the washing effect of dye in the daily chemical field of laundry detergent, laundry gel beads, nail polish and children cosmetics. The preparation method is simple, raw materials are uniformly mixed, and the stability is excellent.

To provide a curable composition which can form a cured film having an excellent resistance to a solvent, to high temperature and high moisture, and to a heat cycle even when the composition is cured at low temperatures.SOLUTION: The curable composition includes: a near-infrared absorption dye (A); a radical polymerizable compound (B); a radical polymerization initiator (C); a thermal curable compound (D); and a hardening accelerator (E). The hardening accelerator (E) includes at least two types of imidazole compounds.SELECTED DRAWING: Figure 1

To provide a high polymer dispersant including, as an effective component, a structural unit derived from an itaconic acid as a biomass material, the dispersant enabling preparation of a pigment dispersion having excellent pigment dispersibility and an aqueous inkjet ink having excellent ejectability and allowing recording of an image with excellent image quality, adhesion to a substrate, and durability, as well as a method for producing the dispersant.SOLUTION: A polymer dispersant for dispersing a pigment, the dispersant comprising a structural unit (i) derived from itaconic acid or the like in an amount of 5-20 mass%, a structural unit (ii) derived from isobornyl acrylate in an amount of 15-45 mass%, a structural unit (iii) derived from tetrahydrofurfuryl acrylate or the like in an amount of 10-40 mass%, and a structural unit (iv) derived from styrene or the like in an amount of 15-45 mass%, the polymer being a carboxyl group-containing polymer having a number average molecular weight of 10,000-30,000, at least a part of the carboxyl groups being neutralized with an alkali and dissolving in water.SELECTED DRAWING: None

The invention relates to a method for preparing a saturated luminescent composition or a saturated and colored luminescent composition. The method comprises a saturation step 100 of a luminescent pigment with a saturation composition adapted to penetrate the microcavities of the luminescent pigment. The saturation step 100 comprises a mixing substep 110 and a holding substep 120, the saturation step yielding a saturated luminescent pigment. The method then comprises a mixing step 200 of the saturated luminescent pigment with a carrier composition to obtain a saturated luminescent composition.

The invention discloses a preparation method of a chitosan modified polymeric dye and application of the chitosan modified polymeric dye in a temporary hair dye, and belongs to the technical field of polymeric dyes. The preparation method comprises the following steps: (a) dissolving dye containing monohydroxyl or monoamino in an organic solvent to obtain a solution A; (b) dissolving isocyanate in an organic solvent to obtain a solution B; dropwise adding the solution A into the solution B at the temperature of 20-80 DEG C, and reacting at the temperature of 20-80 DEG C to obtain a modified dye molecule solution C; (c) dissolving chitosan in a mixed solvent of water and ethanol to form a chitosan solution; and dropwise adding the modified dye molecular solution C into the chitosan solution, and reacting at 10-50 DEG C to obtain the chitosan modified macromolecular dye. The modified polymer dye has the characteristics of high safety, high stability, strong binding force with hair and the like, so that a temporary hair dye prepared from the modified polymer dye has a good dyeing effect.

A wet-state indicator composition is provided, which is excellent in color change performance and in which odor is suppressed. Disclosed is a wet-state indicator composition comprising: a hydrocarbon oil (A); at least one selected from saturated fatty acids having 16 or more carbon atoms and derivatives of the saturated fatty acids (B); and a moisture-sensitive colorant composition (C), wherein component (B) is contained in an amount of 2 to 85 parts by mass based on 100 parts by mass of the total amount of components (A) to (C).

Disclosed are an electron-transport conductive ink containing a benzodifurandione-based compound, a preparation method therefore, and application thereof. The conductive ink comprises a benzodifurandione-based compound, a specific surfactant, and a solvent;the benzodifurandione-based compound has the following structural unit:The present disclosure introduces a specific surfactant capable of interacting with the benzodifurandione-based compound, which is usually a unit capable of forming a hydrogen bond or ionic electrostatic force with the benzodifurandione-based compound, such that, in addition to the dispersion ability of the surfactant, the force makes the benzodifurandione-based compound more stable after dispersion, preventing aggregation over time and ensuring better dispersion stability.

The invention belongs to the field of pigment color paste, and particularly relates to a modified coloring agent with a triazine structure and application of the modified coloring agent. The structure of the modified colorant is shown as a general formula D1, and the anchoring group L anchors the modified colorant on the surfaces of pigment particles in a physical adsorption or chemical bond form to realize surface modification of the pigment. According to the modifier colorant, the hydrophilicity or lipophilicity of the pigment can be effectively regulated and controlled by adjusting the variety and number of triazine substituent groups, the nano pigment paste treated by the modifier has self-dispersing performance, other auxiliaries do not need to be added, the dispersity, stability and filterability of the nano pigment paste can be effectively improved, and the nano pigment paste can be used for preparing the nano pigment paste. And the coating has excellent coloring ability.

The present invention discloses a compound dye for fluorescent staining of cells in complex matrices. The compound dye comprises, based on a total volume of 100 mL, a buffer system having a pH of 6.0 to 8.0; a fluorescent dye, wherein the fluorescent dye is 2× to 40× Sybr Gold or 2 to 80 mg of propidium iodide; 0.1 to 10 mL of Triton X-100; 0 to 24 mL of glycerol; 0 to 800 mg of EDTA-disodium; and a polyamide-amine dendrimer. The two preferred compound fluorescent dye formulas of the present invention can both achieve efficient staining of cells in complex matrices and accurate counting of their number, and the dye has excellent fluorescence color development ability. Compared with other dyes, the compound dye has a fast staining rate (staining can be achieved within 30 seconds), stable staining, and is not prone to fluorescence quenching under long-term illumination.

The presently claimed invention relates to polyalkyleneimine-based polymers that are useful as dispersants and a process for the preparation thereof. The presently claimed invention is also directed to dispersants that are useful in solvent-based dispersion systems as well as in water-based dispersion systems.

The application belongs to the technical field of display materials, and relates to a modified yellow pigment and a preparation method and application thereof. The modified yellow pigment comprises a yellow pigment, an acrylic resin and a pigment yellow 74 derivative. The yellow pigment is C.I. Pigment Yellow 138. The acrylic resin has a molecular weight of 9000, an acid value of 125 and a solid content of 30%. The pigment yellow 74 derivative is provided. The modified yellow pigment is prepared by adding the acrylic resin and the pigment yellow 74 derivative in kneading, so that the brightness and contrast of the pigment after film formation are improved. The pigment yellow 74 derivative is a solid, and the addition of the salt in the kneading increases the shearing friction, which is beneficial to the kneading modification of the yellow pigment. In the post-treatment, an iron removal process is added. The iron is removed by an iron remover for the first time, and HCl and EDTA disodium salt are further added. The hydrochloric acid is used to convert the metal into metal ions, and then the EDTA disodium salt is added to form a stable water-soluble complex, so that the metal content in the pigment is reduced to the minimum.