17 results about "YELLOW DYE" patented technology

The invention belongs to the technical field of photoresists, and relates to a wide-color-gamut yellow dye for a color filter, a synthesis method of the wide-color-gamut yellow dye, a green photoresist and a preparation method of the green photoresist. The green photoresist is prepared from the following raw materials in parts by weight: 4 to 8 parts of green pigment, 3 to 8 parts of resin, 3 to 10 parts of acrylic monomer, 0.5 to 2 parts of photoinitiator, 0.2 to 0.4 part of auxiliary agent and 75 to 85 parts of organic solvent. The synthesized yellow dye has good photoresist system adaptability and high molar absorption coefficient, and meanwhile, due to the fact that acrylic acid is grafted, acrylic acid on the yellow dye has carbon-carbon double bonds, under the action of a photoinitiator, after bond breaking, the yellow dye can react with resin or an acrylic monomer and is cured in a film, and the yellow dye has good chemical resistance.

The invention provides a yellow dye composition and a dyeing process. The yellow dye composition comprises a dye A, a dye B, a dye C and an auxiliary agent, wherein the weight ratio of the dye A to the dye B to the dye C to the auxiliary agent is (30-50): (25-40): (0-10): (30-40). Wherein the dye A is the most important component, and a large pi conjugated system is formed by an azo bond, a pyrazole ring and two benzene rings.

The invention relates to the technical field of dyes, in particular to a non-photosensitive yellow dye composition and a dyeing method, the non-photosensitive yellow dye composition is prepared by compounding a compound A and a compound B, and the mass ratio of the compound A to the compound B is (10-90): (10-90); the method has the advantage that the light fastness and the dyeing uniformity of the dye can be improved at the same time.

To provide a film that can block ultraviolet rays, suppress the glare of blue LEDs, and transmit light of 485 nm or higher, as well as a multilayer and a heat-bendable molded product. [Solution] The film according to this disclosure is a film comprising a polycarbonate resin, a yellow dye, and an ultraviolet absorber, wherein the yellow dye has an absorption coefficient (I) at a wavelength of 520 nm. 520 ) is 1.0 × 10 -7 The particle size is less than or equal to ppm·μm, the content of yellow dye is 100 to 4000 ppm by mass per 100 parts by mass of polycarbonate resin, the content of ultraviolet absorber is 0.01 to 1 part by mass, the average light transmittance of the film at wavelengths of 350 to 460 nm is 5.0% or less, and the light transmittance of the film at wavelengths of 485 nm is 20.0% or more.

The invention provides a high-solubility acid yellow composition and a preparation method thereof, and relates to an acid yellow dye. The invention provides a high-solubility acid yellow composition. The high-solubility acid yellow composition comprises two or more compounds in a general formula (1), the general formula (1) is shown in the specification; and X1 and X2 are independently or respectively. R is Li, NH4 or Na. R1, R2, R3, R4, R5 and R6 are independently-H,-SO3M1,-OCH3 and-CH3, and M1 is any one of hydrogen, potassium, sodium, lithium and ammonium. Compared with the existing acid yellow dye, the acid yellow dye researched and developed by the invention has the advantages that the dissolving property is excellent, and the refrigeration effect is excellent; and precipitation cannot occur after long-time refrigeration at low temperature.

The invention relates to the technical field of dyes, in particular to a non-photosensitive yellow dye composition and application thereof.The non-photosensitive yellow dye composition comprises a compound A and a compound B. The compound B is prepared by substituting chlorine atoms in the structure of the compound A and introducing para-ester or phenol sulfonated para-ester, and the compound B is prepared by introducing a benzene ring structure. Intermolecular and intramolecular pi-pi conjugation can be improved, and intermolecular and intramolecular electron cloud interaction can be enhanced, so that the compound has the characteristic of good low photosensitivity; and through compounding of the compound A and the compound B, the photochromic resistance and the washing resistance of the yellow dye composition are improved at the same time.

Provided are: a film which is capable of blocking ultraviolet rays and suppressing glare of a blue LED, and through which light having a wavelength of 485 nm or more can transmit; a multilayer body; and a heat-bent molded body. A film according to the present disclosure comprises a polycarbonate resin, a yellow dye, and an ultraviolet ray absorbing agent. The yellow dye exhibits an absorbance index (I520) of not more than 1.0×10-7 / ppm·µm with respect to a wavelength of 520 nm. With respect to 100 parts by mass of the polycarbonate resin, the contained amount of the yellow dye is 100-4000 mass ppm and the contained amount of the ultraviolet ray absorbing agent is 0.01-1 parts by mass. The average light transmittance of the film with respect to wavelengths of 350-460 nm is not more than 5.0%. The light transmittance of the film with respect to a wavelength of 485 nm is not less than 20.0%.

The invention discloses a skin erythema optical phantom and a preparation method thereof, and relates to the technical field of biomedical optical technology and skin erythema detection. The skin erythema optical phantom comprises the following components: a red dye, a black dye, a yellow dye, a scattering medium, a solidification medium and a preservative. The difference between the skin erythema optical phantom prepared by the invention and the tissue optical parameters (such as mu a and mu's) of human skin is lt; 5%; the diffuse reflection spectrum contact ratio gt with human skin erythema at the wave band of 500-600nm; 90%; the differences with L *, a * and b * values of human skin erythema in the Lab color space are all lt; and 10%. The skin erythema optical phantom can be used as a reference standard for calibration of erythema detection equipment and comparison calibration of erythema indexes.

The application discloses an oil-soluble yellow dye shown in formula A, a preparation method thereof and application of the oil-soluble yellow dye as a colorant in a non-aqueous solvent, and has the following advantages: (1) raw materials are simple and easy to obtain, cost is low, a synthesis process is simple, and industrialization is easy; (2) a product with rich types and complex composition can be easily obtained by adjusting a halogenated hydrocarbon type and reaction conditions, and remarkable advantages are possessed in performance control and formula security; (3) the product shows good solubility in various organic solvents, can be well dissolved at low concentration and high concentration, and has good application prospect in ink, paint and polymer coloring; wherein R1 is H or a C2-C12 even carbon straight-chain or branched-chain alkane, R2 is H or a C2-C12 even carbon straight-chain or branched-chain alkane, and R1 and R2 cannot be H simultaneously.

This invention discloses thioether-modified anthraquinone dyes, their synthesis method, and their application in color photoresist pastes. The preparation process of the anthraquinone dyes is as follows: 1,8-dichloroanthraquinone is reacted with a substituent-containing arylthiophenol at 100 °C using N,N-dimethylformamide (DMF) as a solvent in the presence of alkali K₂CO₃ via an aromatic nucleophilic substitution (SnAr) reaction. This invention introduces thioether-modified anthraquinone yellow dye molecules into the application of color photoresist pastes. These molecules are used as additives for green pixels in photoresist pastes to absorb stray blue light, thereby improving the color purity of green pixels. The thioether-modified anthraquinone yellow dyes of this invention have better solubility than traditional anthraquinone dye molecules and retain the excellent photostability and thermal stability of the anthraquinone backbone, showing significant advantages over commonly used yellow dyes in current photoresist pastes.

The invention relates to the technical field of functional dyes, and particularly discloses a high-weather-resistance dye and a preparation method and application thereof.The preparation method of the high-weather-resistance dye comprises the following steps that S1, 5-bromo-4-fluoroisatoic anhydride, 2, 4-dichloro-7-methylquinoline, an alkaline substance and an organic solvent are added into a reaction kettle to be stirred for a reaction, and a mixture is obtained; after the reaction is finished, pouring reaction liquid into ethanol, extracting by using an organic solvent, performing rotary evaporation, and drying to obtain a dye intermediate A; s2, stirring and reacting the dye intermediate A with 1-[(6-ethoxy-3-pyridyl) methyl]-4-piperidylamine, an organic solvent and a catalyst under a heating condition, pouring a reaction solution into water after the reaction is finished, separating, filtering to obtain a solid, recrystallizing, and drying to obtain the high-weather-resistance dye. Through innovative molecular structure design and selection of specific raw material combination, the novel yellow dye with a rigid conjugated skeleton and metal coordination capability is developed, and the defect of poor weather resistance of the dye is effectively overcome.

The invention discloses a preparation method of 5, 5 '-dihydroxy bipyridine diester and application of a prepared product of the 5, 5'-dihydroxy bipyridine diester in fabric dyeing, and relates to the technical field of compound preparation. According to the preparation method of the 5, 5 '-dihydroxy dipyridyl diester disclosed by the invention, 5, 5'-dihydroxy blue reacts with an acetylation reagent under the condition of a solution in which an aluminum-based catalyst and a titanium-based catalyst in a mass ratio of (1-3): 1 coexist, the reaction temperature is 90-110 DEG C, the reaction time is 5-8 hours, and the 5, 5 '-dihydroxy dipyridyl diester is obtained after the reaction. Through the combination of specific catalysts, the alcoholic hydroxyl group in the 5, 5 '-dihydroxy bipyridine diester can be used as a nucleophilic reagent to easily carry out nucleophilic attack on the carbonyl group of an acetylation reagent, the reaction yield and the product purity are improved, the prepared product 5, 5'-dihydroxy bipyridine diester is a yellow dye, and the application of the bipyridine diester in the dyeing aspect is widened.

The invention discloses a preparation method of decorative golden rice, which comprises the following steps: S1, raw material pretreatment: selecting rice, cleaning the rice, and removing impurities; s2, preparing dye liquor, namely adding yellow dye into water, and uniformly stirring to obtain the yellow dye liquor; s3, adding gold powder into the yellow dye liquor, then adding rubber powder, and uniformly stirring to obtain golden yellow dye liquor; s4, pouring the rice into a stirrer, adding the stirred golden yellow dye liquor, and uniformly stirring; and S5, pouring out the stirred rice from the stirrer, naturally airing and dispersing to obtain a finished product of the decorative golden rice. The golden yellow dye liquor is prepared by using the low-price rice, the yellow dye, the gold powder and the rubber powder, and the golden yellow dye liquor is coated on the surface of the rice, so that the decorative gold rice is prepared, the preparation process is simple, the preparation cost is low, batch production is facilitated, and the golden rice is suitable for household ornaments, fillers of pagoda basins and financial jars, decorative handicrafts, props and the like, does not rust, does not fade, and is suitable for popularization and application. The use effect is good.

The invention discloses a high-contrast black polymer dispersed liquid crystal film and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing a blue-violet dye liquid crystal P1, a purple dye liquid crystal P2, a yellow dye liquid crystal Y1, a yellow dye liquid crystal Y2, a blue dye liquid crystal B and a red dye liquid crystal R to prepare a black dye liquid crystal H1; uniformly mixing the black dye liquid crystal H1 with a polymer monomer composition to form a liquid crystal mixed solution which is isotropic at room temperature; mixing the isotropic liquid crystal mixed solution with microbeads, clamping the mixture between two transparent conductive films, and rolling to form a liquid crystal film; and curing the liquid crystal film to obtain the high-contrast black polymer dispersed liquid crystal film. The black polymer dispersed liquid crystal film has a very high contrast ratio under power-on and power-off conditions, so that the black polymer dispersed liquid crystal film has a remarkable color shade change when the black polymer dispersed liquid crystal film is changed between a transparent state and a frosted state, and the black polymer dispersed liquid crystal film can meet high-demand application scenes.

A three-dimensional printing kit includes a fusing agent and a polymeric build material composition. The fusing agent includes a plasticizing solvent package, water, and from about 0.01 wt % active to about 0.35 wt % active of a visible light absorbing dye selected from a yellow dye, a red dye, a blue dye, an orange dye, a green dye, a purple dye, and / or a cyan dye. The plasticizing solvent package consists of i) propylene glycol, or ii) an aromatic alcohol and a plasticizing solvent that increases water solubility of the aromatic alcohol, or iii) propylene glycol, an aromatic alcohol, and a plasticizing solvent that increases water solubility of the aromatic alcohol.

A reactive disperse yellow dye is suitable for supercritical CO2 anhydrous dyeing. The reactive disperse yellow dye in has a parent of azo structure, and has monochlorometriazinyl groups thereon. The reactive disperse yellow dye can be used for supercritical CO2 anhydrous dyeing of cellulose fiber, protein fiber, chemical fiber and the blended fabrics thereof, and has good dyeing effect particularly for cotton-polyester blended products.

The invention relates to an electric automobile cable anti-siphon detection method and a testing device thereof, and relates to the technical field of electric automobile cable testing devices, and the testing device comprises a vacuum pump, a gas storage tank and a testing box; the test box comprises an upper cover, a shell and a lower cover which are detachably connected; a plurality of negative pressure holes are formed in the inner side of the upper cover in an annular array manner; a coil pipe is detachably installed in the shell, the insertion sealing pipes correspond to the negative pressure holes one to one, and when the upper cover and the shell are assembled, the lower rubber sleeve is inserted into the upper rubber sleeve; a stirring mechanism is arranged in the lower cover; according to the invention, the use of connecting pipelines is reduced, sealing and locking are carried out through the cooperation of a movable locking buckle and a fixed locking buckle, the negative pressure environment of the device can be effectively ensured, and in addition, the climbing height of a test solution can be more clearly observed through the addition of an oil-soluble fluorescent yellow dye, so that the detection accuracy is improved. And the accuracy of the test structure is ensured.