16 results about "Anthraquinone dye" patented technology

The invention discloses a polymerization inhibitor for printing ink, the printing ink and application of the printing ink. Relates to the field of ink polymerization inhibitors. The component of the polymerization inhibitor for the printing ink comprises p-hydroxyanisole, and the printing ink is selected from azo dye type printing ink or mixed printing ink of anthraquinone dye and azo dye. According to the polymerization inhibitor disclosed by the invention, p-hydroxyanisole is added into azo dye type ink or anthraquinone-azo mixed type ink as an active component, so that the reflux performance of an electrowetting display device after light aging can be remarkably improved.

Food contact materials with a color difference ΔE <20 from the L*a*b* coordinates to a color number starting with "5" of the RAL color chart according to the color model according to EN ISO 11664-4, to be determined according to DIN 5033 (1979), based on compositions containing at least one polyester or polystyrene and a colorant consisting of at least one blue anthraquinone dye and at least one ethylene oxide-propylene oxide block copolymer with a central propylene oxide unit between two ethylene oxide units, a molar mass determined from the OH number to be determined according to DIN / ISO 4629, in the range of 5500 to 7500 g / mol, a mass fraction of ethylene oxide units in the range of 45 to 55 wt.% and a flocculation point to be determined according to EN 1890 method B in the range of 70°C to 85°C.

According to the method for improving the optical performance of the dye-series polaroid at low cost, the production and manufacturing procedures are not greatly changed, only the azo dye, the anthraquinone dye, the azide dye, the naphthalimide dye, the benzothiadiazole dye or the leek dye are compounded, and the method is used for dyeing dye-series polaroid products; according to the dye-series polaroid, the transmittance in a near-infrared area can be changed, so that the dye-series polaroid product can simultaneously achieve the transmittance of 38-42% and the polarization degree of 99% or above, the manufacturing cost is reduced, the limitation of T-P trade-off of an existing polaroid is broken through, cooperative improvement and dynamic adjustment of the transmittance and the polarization degree of the dye-series polaroid are achieved, and under the condition of being compatible with an existing production line, the dye-series polaroid has the advantages of being high in practicability and wide in application range. And the harsh optical requirements of different high-end electronic display types are met.

The invention relates to the field of intelligent materials, and discloses a variable color material based on a dye liquid crystal technology and application of the variable color material, and the variable color material is formed by compounding a main nematic phase liquid crystal, a chiral dopant and a functional anthraquinone dye with a specific structure according to a predetermined mass percentage. When an electric field is not applied, the chiral dopant induces the liquid crystal and the dye molecules to form a spiral ordered structure, and the structure shows a strong absorption characteristic on incident light, so that the material is in a low-reflectivity dark-color heat absorption state. When an electric field is applied, the liquid crystal and the dye molecules synergistically respond, the long axes of the liquid crystal and the dye molecules are rearranged in the direction of the electric field, an original spiral structure is damaged, and the material is converted into a high-reflectivity light-color low-heat-absorption state. Through on-off of an electric field, rapid and reversible switching between the two states can be realized, so that efficient cooperative regulation and control of the optical reflectivity and the heat absorption performance of the material are achieved.

The application discloses a wastewater decoloring treatment device for anthraquinone dye production, and particularly relates to the technical field of dye production wastewater treatment, which comprises an outer shell, the outer shell comprises a treatment layer one, a filter assembly is arranged in the treatment layer one, a rotating assembly is arranged on the right side of the treatment layer one, the rotating assembly comprises a treatment layer two, a power generation assembly is arranged in the treatment layer two, a cleaning assembly is arranged in the treatment layer two, and a drainage assembly is arranged in the treatment layer two. The cooperation of various components can control the cross movement of the filter plate one, change the pore size, avoid blockage, mix and stir the wastewater, drive the power generation assembly to generate current in the mixing process, thereby producing adsorption effect on the color factor in the wastewater, and clean the metal mesh by the cleaning assembly, so that the adsorption and purification capacity of the anthraquinone dye wastewater color factor is enhanced.

A transparent container comprising an aqueous liquid laundry detergent composition wherein the aqueous liquid laundry detergent composition comprises from 2 to 60 wt. % of surfactant; and a dye comprising an anthraquinone dye, a triphenylmethane dye, an azo dye or a combination thereof; and from 0.005 to 0.1 wt.% of hindered phenol antioxidant; and wherein the container has an internal volume of from 0.1 to 10 L; and wherein the maximum absorbance of the aqueous liquid laundry detergent composition in the range of from 500 to 700nm and as measured at a 1cm pathlength is from 0.02 to 1; and wherein the pH of the aqueous liquid laundry detergent composition when measured at 20 degrees Celsius is from 6.0 to 8.5

The invention relates to the technical field of functional dyes, and particularly discloses a high-weather-resistance blue dye and a preparation method and application thereof.The preparation method of the high-weather-resistance blue dye comprises the following steps that S1, mitoxantrone, 3-bromine-1-amidonaphthalene, a catalyst and an organic solvent are mixed and then heated and stirred for a reaction, a solid is obtained through filtering, and the solid is dried; washing with water and ethanol, and drying to obtain a dye intermediate A; and S2, mixing the dye intermediate A with 2-amino-4 '-methoxybenzophenone, a catalyst and an organic solvent, heating, stirring and reacting, extracting, carrying out rotary evaporation to obtain a solid, recrystallizing, and drying to obtain the high-weather-resistance blue dye. The benzophenone structure is introduced into the anthraquinone dye, so that the light resistance and the heat resistance of the anthraquinone dye are synchronously improved fundamentally.

The present application relates to liquid crystal dimming film technical field, disclose a kind of CWO@KSiO2 core-shell structure nanoparticle, dye liquid crystal dimming film and its preparation method and application.The liquid crystal dimming film, by weight fraction includes: small molecule liquid crystal 70~50 parts, polymerizable monomer 30~50 parts, CWO@KSiO2 core-shell structure nanoparticle 1~5 parts, dichroic anthraquinone dye 0.1~5 parts, photoinitiator 0.1~1 part and spacer particle 0.1~1 part.The dye liquid crystal dimming film doped with CWO@KSiO2 core-shell structure nanoparticle provided by the present application introduces CWO@KSiO2 core-shell structure nanoparticle, utilizes its core-shell synergistic effect, enhances the optical control performance of dimming film in visible light and near infrared wave band and the emissivity in mid-infrared wave band, simultaneously provides heat insulation and cooling function.The addition of dichroic anthraquinone dye gives the color tunability of dimming film, expands its potential in privacy and display field.

The present application relates to the technical field of light control film, and in particular to a high-contrast anthraquinone dye PDLC composition and light control film, which comprises dichroic dye liquid crystal, photocuring glue and spacer, wherein the dichroic dye liquid crystal comprises nematic liquid crystal and dichroic dye, and the dichroic dye at least comprises one compound selected from the following formula I, formula II, formula III, formula IV or formula V. The present application introduces a new type of anthraquinone dichroic dye with optimized molecular configuration, overcomes the defects of the existing dye in the degree of orientation and solubility, and improves the contrast of the anthraquinone dye in the liquid crystal. The PDLC light control film prepared from the composition has high contrast and excellent thermal / hue stability.

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 aluminum alloy sulfuric acid anodic oxidation surface treatment. The invention discloses a high hemispherical emissivity surface treatment method which comprises the following steps: S1, pretreatment: after oil is removed by adopting an alkaline composite oil removal agent, acid pickling is performed by using mixed acid liquor to remove an oxide layer and coarsen the surface at the same time; s2, anodic oxidation with sulfuric acid: placing in a composite system of HSO and citric acid for electrolytic oxidation; s3, coloring: dyeing with a mixed solution of anthraquinone dye and a surfactant; and S4, hole sealing: immersing into a hole sealing solution composed of deionized water and nickel acetate for hole sealing treatment. High emissivity is achieved only through regulation and control of technological parameters, the production process is simplified, and the cost is reduced; the emissivity is improved by more than 20% compared with that of a conventional process, and the performance is stable in a wide temperature range; based on transformation of traditional sulfuric acid anodic oxidation equipment, industrial mass production is easy to realize; while the emissivity is improved, the corrosion resistance and wear resistance of the oxidation film are maintained.

Food contact materials with a color difference ΔE <20 from the L*a*b* coordinates to a color number starting with "4" of the RAL color chart according to the color model according to EN ISO 11664-4, to be determined according to DIN 5033 (1979), based on compositions containing at least one polyester or polystyrene and a colorant consisting of at least one violet anthraquinone dye and at least one ethylene oxide-propylene oxide block copolymer with a central propylene oxide unit between two ethylene oxide units, a molar mass determined from the OH number to be determined according to DIN / ISO 4629, in the range of 5500 to 7500 g / mol, a mass fraction of ethylene oxide units in the range of 45 to 55 wt.% and a flocculation point to be determined according to EN 1890 method B in the range of 70°C to 85°C.

A transparent container comprising an aqueous liquid laundry detergent composition wherein the aqueous liquid laundry detergent composition comprises from 1 to 50 wt. % of linear alkyl benzene sulphonate (LAS), wherein the LAS comprises at least 20 wt.% of 2-phenyl isomer LAS, based on the total weight of LAS; and a dye comprising triphenylmethane dye, mono-azo dye, anthraquinone dye or a combination thereof; and preferably from 0.001 to 5 wt.% fragrance; and wherein the container has an internal volume of from 0.1 to 10 L; and wherein the maximum absorbance of the aqueous liquid laundry detergent composition in the range of from 500 to 700nm and as measured at a 1cm pathlength is from 0.02 to 1; and wherein the pH of the aqueous liquid laundry detergent composition when measured at 20 degrees Celsius is from 5.0 to 7.3.

The invention relates to a low-conductivity cooling liquid with high corrosion inhibition performance and a preparation method thereof, and belongs to the technical field of automobile cooling liquid. The cooling liquid is prepared from the following components in parts by weight: 40.00 to 60.00 parts of ethylene glycol, 0.1 to 1.0 part of organic alkali, 0.05 to 0.5 part of phosphate ester, 0.1 to 0.3 part of a silane coupling agent, 0.01 to 0.1 part of an azole heterocyclic ring, 0.0001 to 0.001 part of anthraquinone dye, 0.0001 to 0.001 part of a de-foaming agent and the balance of water, wherein the total amount of the components is 100 parts. The invention also provides a preparation method of the low-conductivity cooling liquid with high corrosion inhibition performance. The cooling liquid of the efficient corrosion inhibition system provided by the invention has relatively low conductivity, the risk of leakage of the cooling liquid is reduced, and the electrical safety performance is improved. And meanwhile, the combination of phosphate ester, a silane coupling agent and a nitrogen azole heterocycle is utilized, so that an efficient corrosion inhibition effect is achieved on copper, aluminum and steel metal.

The invention relates to the technical field of dichroic dyes, in particular to a dichroic anthraquinone dye, a liquid crystal coating composition and application of the dichroic anthraquinone dye and the liquid crystal coating composition. In the structural general formula of the dichroic anthraquinone dye, Z1 and Z2 are independently selected from O, S,-CO <->,-COO <->,-OCO <->,-OCOO <-> or NR; r is selected from one of H and C1-C24 alkyl groups. L1 and L2 are independently selected from one of alkyl groups with 1 to 24 carbon atoms, heteroalkyl groups with 1 to 24 carbon atoms and heteroalkyl groups with 1 to 24 carbon atoms; heteroatoms in the C1-C24 heteroalkyl group comprise at least one of O and S. And H1 and H2 are independently selected from one of phenyl and biphenyl. The dichroic anthraquinone dye can be well dissolved in a liquid crystal system, the performance of the dimming film can be improved, and the dimming film containing the specific dye can achieve effective light intensity adjustment and has reliable light stability and heat stability.

A transparent container comprising an aqueous liquid laundry detergent composition wherein the aqueous liquid laundry detergent composition comprises from 1 to 50 wt. % of linear alkyl benzene sulphonate (LAS), wherein the LAS comprises at most 18 wt.% of 2-phenyl isomer LAS, based on the total weight of LAS; and a dye comprising triphenylmethane dye, mono-azo dye, anthraquinone dye or a combination thereof; and preferably from 0.001 to 5 wt.% fragrance; and wherein the container has an internal volume of from 0.1 to 10 L; and wherein the maximum absorbance of the aqueous liquid laundry detergent composition in the range of from 500 to 700nm and as measured at a 1cm pathlength is from 0.02 to 1; and wherein the pH of the aqueous liquid laundry detergent composition when measured at 20 degrees Celsius is from 5.0 to 7.3.