31 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.

The invention discloses a high-fixation-rate active bright yellow dye as well as a preparation method and application thereof. The active dye is shown in a structural general formula (I). The reactive dye disclosed by the invention is prepared by taking a pyridone compound containing an aliphatic primary amine group as a coupling component through multi-step reactions of diazotization, coupling, condensation and the like. Finally, the molecular structure of the dye contains four active groups, so that the fixation rate of the dye on cellulose fibers is improved, the technical problem of low fixation rate of the active bright yellow dye of the existing pyridone coupling component is solved, and the dye has a wide application prospect.

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 application relates to the field of dye technology, and particularly discloses a NDI self-coupling yellow dye, an ink and an electrowetting display device. 20 The structure formula of the NDI self-coupling yellow dye is as shown in the following formula: wherein R1 is selected from any one of C1-C 20 alkyl, C1-C alkyl with branches; R2 is selected from any one of a phenyl and a substituted alkyl phenyl; and n is a positive integer. The application provides a series of NDI self-coupling yellow dyes with a naphthalimide structure. Through self-coupling, the molar absorption coefficient is increased without changing the color. The prepared NDI self-coupling yellow dye can be dissolved in an organic solvent to prepare an ink suitable for electrowetting display. When the ink is applied to the electrowetting display device, the electrowetting display device has a good aperture ratio and a short switching response time.

The invention belongs to the technical field of transparent heat insulation materials, and provides a low-blue-phase transparent heat insulation PET film and a preparation method thereof, and the PET film comprises a PET matrix, and cesium tungsten bronze and an organic yellow dye dispersed in the PET matrix. According to the invention, the spectrum complementary effect between the yellow dye and the cesium tungsten bronze blue phase is utilized to realize the low blue phase of the PET film, and even the PET film can be neutral and colorless; meanwhile, in order to further enhance the dispersity of the cesium-tungsten bronze in a PET matrix, a high-speed stirring and micro-injection process is used in the preparation process, so that the agglomeration phenomenon of the cesium-tungsten bronze is avoided, and the high transparency of the PET film is ensured.

The invention relates to the technical field of dyes, and particularly discloses a naphthalimide benzooxygen heterocyclic yellow dye, ink and an electrowetting display device. The structural formula of the naphthalimide benzooxygen heterocyclic yellow dye is shown in the specification, wherein R1, R2 and R3 are respectively and independently selected from any one of alkyl, alkoxy, alkyl phenyl, alkoxy phenyl and thienyl. A dye main body obtained after coupling of naphthalimide and phenol mainly absorbs blue light of 400-480 nm, the substance is yellow, the main body structure has a large conjugate plane, is immiscible in polar liquid and has a good molar absorption coefficient, the solubility is improved by adding long-chain branched alkyl in the main body structure, and the dye has a good color rendering effect. The prepared dye can be dissolved in an organic solvent to prepare printing ink suitable for electrowetting display, and after the printing ink is applied to an electrowetting display device, the electrowetting display device has good aperture opening ratio, short switch response time, good electrical stability and good optical stability.

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 optical devices, and discloses a day and night dual-purpose double-layer dye liquid crystal lens and intelligent glasses thereof, which comprise a lens frame, lens legs, the lens assembly, an illumination sensor, a control circuit board, an upper-layer lens injected with yellow dye liquid crystal and a lower-layer lens injected with black dye liquid crystal, the two layers of lenses are laminated and can be independently controlled, and the control circuit board independently controls the power-on states of the upper-layer lens and the lower-layer lens according to the ambient light intensity detected by the illumination sensor. Through cooperative work of the upper-layer lens and the lower-layer lens, dual functions of sun-shading and anti-dazzle in the daytime and brightening assistance at night are realized, and the problem of single function in the prior art is solved; through cooperation of the illumination sensor and the control circuit, automatic intelligent switching of working modes is achieved, and convenience is improved; and the light transmittance is subjected to stepless regulation through a pulse width modulation technology, so that the adaptability to different light environments and the visual comfort are enhanced.

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 relates to the field of dyes, and particularly discloses a yellow dye composition and application thereof. The yellow dye composition is formed by compounding the compound A shown in the formula (I) and the compound B shown in the formula (II), the yellow dye composition formed by compounding the two compounds has no photochromic problem, and a dyed fiber material is prevented from fading under the illumination condition; the yellow dye composition has excellent lifting power, good stability and color fastness index, and can give consideration to good dyeing performance and economic performance; the yellow dye composition is suitable for dyeing processes such as dip dyeing and pad dyeing, and can meet the requirements of different fiber materials and diversified dyeing processes. The structures of the two compounds are respectively shown in the specification.

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 belongs to the field of organic yellow dyes, and relates to a benzothiazole 2-acetonitrile derivative and a preparation method and application thereof, and a photoresist film and a preparation method and application thereof. The preparation method of the benzothiazole 2-acetonitrile derivative comprises the following steps: dissolving a benzaldehyde derivative, benzothiazole 2-acetonitrile and triethylamine in ethanol, reacting at a specified temperature, cooling to room temperature after the reaction is finished, and sequentially carrying out suction filtration and column chromatography separation to generate the benzothiazole 2-acetonitrile derivative; the preparation method comprises the following steps: mixing a benzothiazole 2-acetonitrile derivative, an acrylic acid adhesive, a solvent and a thermal initiator, and sequentially carrying out spin coating and ultraviolet curing to obtain the photoresist film. The benzothiazole-2-acetonitrile derivative is innovatively synthesized, the technical bottleneck existing in the field of organic yellow dyes for a long time is broken through, and a brand new molecular skeleton support is provided for material innovation in the field.

The invention relates to the field of dyes, and particularly discloses a non-photosensitive yellow dye composition as well as application and a dyeing method thereof. The yellow dye composition is formed by compounding the compound A as shown in the formula (I) and the compound B as shown in the formula (II), the photosensitivity of the dye is reduced through synergistic interaction of the two compounds, the color fastness is improved, and the dye composition has the advantages of being good in homochromatism, free of photosensitivity and high in color fastness.

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 bright yellow reactive dye taking bipyridone as a coupling component and a preparation method of the bright yellow reactive dye. The reactive dye is shown in a structural general formula (I). The reactive dye disclosed by the invention is prepared by taking a compound containing two novel pyridone components as a coupling component and reacting with diazonium salt containing a vinyl sulfone sulfate active group. Due to the fact that the molecular structure of the coupling component contains two coupleable components, the finally prepared dye contains two vinyl sulfone sulfate active groups, the fixation rate of the dye on cellulose fibers is increased, meanwhile, the technical problems that an existing pyridone coupling component active bright yellow dye is low in fixation rate and cannot resist printing are solved, and the dye has the advantages of being simple in preparation process and low in cost. Wide application prospects are realized.

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 relates to a method for dyeing loose fibers with sensitive color, sensitive dispersion fibers and application, and relates to the technical field of loose fiber dyeing, a pretreatment auxiliary agent is added into the loose fibers for pretreatment, and the pretreatment temperature is 60-80 DEG C; a dye and an alkaline agent are added in the dyeing process, and the dyed loose fibers are subjected to water washing, color fixation, dehydration and drying to obtain the sensitive dispersion fibers; the dyes comprise a red dye, a yellow dye and a blue dye, and the alkaline agent is a mixture of sodium carbonate and baking soda. According to the method, the first-pass yield of the loose fiber dye-sensitive color can be effectively improved, the color uniformity is good, meanwhile, damage to the loose fiber is small, and the physical property effect of the loose fiber can be well reserved.

The invention particularly relates to application of a benzyltributyldiglycol eutectic solvent-salt solution aqueous two-phase system in extraction of alizarin yellow dye, and belongs to the technical field of eutectic solvents. The method comprises the following steps: putting a benzyltributyldiglycol eutectic solvent-salt solution aqueous two-phase system into an aqueous solution containing alizarin yellow, and separating the alizarin yellow dye under a constant-temperature stirring condition; the benzyl tributyl diethylene glycol eutectic solvent is synthesized from benzyl tributyl ammonium chloride and diethylene glycol. The eutecticevaporate solvent-salt solution aqueous two-phase system prepared by the preparation method disclosed by the invention has relatively strong trapping capability on alizarin yellow dye; meanwhile, the benzyl tributyl diethylene glycol eutectic solvent has the advantages of being simple in synthesis, low in price and the like. Under the condition that the mass ratio of the eutecticevaporate solvent aqueous two-phase solution to the aqueous solution containing alizarin yellow is 1: 1, the extraction efficiency of the alizarin yellow dye is as high as 99.47%.

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.

The invention relates to a red color paste synergist mainly used for optical color filtering of a color liquid crystal display, in particular to modification and application of a yellow dye. The synergist is solvent yellow 93 sulfonated by fuming sulfuric acid, and is prepared by the following steps: stirring the solvent yellow 93 and 102% fuming sulfuric acid at room temperature to react, pouring the reaction product into ice water to separate out, and filtering, washing and drying to obtain the sulfonated modified solvent yellow 93 synergist. According to the invention, the problems of low brightness and small contrast of R254 are solved, and the chromaticity and the contrast are further improved through a kneading experiment.

Two types of contact lenses that block blue light are provided, which are formed by curing different compositions. The first composition includes a blue light blocking component formed by mixing or reacting a first hydrophilic monomer with a yellow dye, a first colored dye component formed by mixing or reacting a second hydrophilic monomer with a first colored dye, at least one third hydrophilic monomer, a crosslinker, and a initiator. The first colored dye includes a green dye, a cyan dye, a blue dye, an orange dye, a red dye, a black dye, or a combination thereof. The second composition includes a blue light blocking component, at least one hydrophilic monomer, a crosslinker, and a initiator. The blue light blocking component is formed by mixing or reacting glycerol monomethacrylate with a yellow dye. Further, a method of making the above contact lenses is provided. Due to the improved solubility and compatibility of the dyes in the compositions, the above contact lenses can have good blue light blocking effect and color rendering.

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.