25 results about "Anthraquinone dye" patented technology

The invention discloses an anthraquinone dye as well as a preparation method and application thereof. The anthraquinone dye disclosed by the invention comprises a compound with a chemical formula as shown in formula (I): # imgabs0 #, wherein W1-W8 are independently selected from H, OH, substituted or unsubstituted C1-C30 alkyl groups or groups containing adamantyl groups; and at least one of W1-W8 is a group containing adamantyl. The anthraquinone dye with high solubility and optical aging resistance is obtained by modifying an anthraquinone main body through adamantane and utilizing high chemical stability and steric hindrance effect of adamantane. The ink prepared from the anthraquinone dye has stability and excellent display effect in electrowetting display, and electrowetting with high light stability is obtained.

A transparent container comprising an aqueous liquid laundry detergent composition wherein the detergent 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 0.001 to 0.06 wt. % of a phenolic based fragrance wherein the container has an internal volume of from 0.1 to 10 L; and wherein maximum absorbance of the aqueous liquid laundry detergent in the range of from 400 to 700nm and as measured at a 1cm pathlength is less than 1.

The present application relates to the field of printing dye technology, and more particularly to a photochromic printing dye, its preparation method, and its application. The photochromic printing dye provided herein is obtained by dispersing a disperse dye and microcapsules in an organic continuous phase. The disperse dye is selected from indigo dye, anthraquinone dye, or triarylmethane dye. The core material of the microcapsules is an oxidant, and the shell material of the microcapsules is a SiO2 complex. The printing dye provided herein contains microcapsules with an oxidant as the core material. During the washing process, the oxidant is slowly released from the shell material and has strong oxidizing properties. On the one hand, it can have a bactericidal effect. On the other hand, during the drying process, it can react with the disperse dye that is prone to photooxidation, causing the disperse dye to slowly decompose and fade.

The invention relates to the field of special copolyesters, in particular to a copolyester, a preparation method thereof and a transparent plastic product. The preparation method of the copolyester comprises the following steps: esterifying binary acid and polyol to form an esterified product; carrying out prepolymerization on the esterification product to form a prepolymer; carrying out first polycondensation on the prepolymer to form a first polycondensation product; adding an anthraquinone coloring agent into the first polycondensation product, and carrying out second polycondensation to form copolyester; the temperature of the first polycondensation and the temperature of the second polycondensation are 260-320 DEG C respectively and independently; the time of the first polycondensation is 1-6 hours; the time of the second polycondensation is 0.5-2 hours. The anthraquinone coloring agent is introduced in the later stage of polycondensation, so that the copolyester with high mechanical strength, low yellowness and high brightness can be prepared, and the application of the polyester in the field with high transparency requirements is realized.

This invention discloses a method for degrading dyes using dye decolorization peroxidase, belonging to the field of biotechnology. This invention expresses a DyP (RhDyPB) derived from the bacterium *Rhodococcus jostii* in *Escherichia coli*. By adjusting the pH, manganese ion, hydrogen peroxide, and Tween-80 content during the decolorization process, the decolorization efficiency of RhDyPB and *E. coli* expressing RhDyPB on the anthraquinone dye Reactive Blue 19, the oxanthracene dye Eosin Y, the indigo dye Indigo Carmine, and the triphenylmethane dye Malachite Green is effectively improved.

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 invention relates to the technical field of functional materials, in particular to a solid-state dyeing liquid crystal membrane and a preparation method of the solid-state dyeing liquid crystal membrane. 5-15 wt% of a nanoscale azo or anthraquinone dye, the particle size of which is less than or equal to 200 nm; 20-35 wt% of a polymer matrix selected from urethane acrylate or epoxy resin; 0.5 to 5 weight percent of nano reinforcing agent; according to solid design, liquid crystal molecules are fixed through a polymer cross-linked network, liquid leakage is avoided, the mechanical strength is improved, dye dispersion optimization is adopted, nanoscale dye particles and a pre-dispersion technology are adopted, high contrast is achieved (larger than or equal to 1000: 1), quick response is achieved, and the electric field response time is smaller than or equal to 20 ms (50 ms or above compared with a traditional liquid film).

The invention relates to the technical field of dyes, and particularly discloses a high-weather-resistance anthraquinone dye and a preparation method thereof. The method comprises the following steps: by taking a structural formula I and an amine compound as reaction raw materials, reacting in a mixed solvent system of an organic solvent, a catalyst I and a surfactant, separating, filtering and washing to obtain the amino-anthraquinone dye, the preparation method comprises the following steps: dropwise adding an amino-anthraquinone dye into a polyurethane prepolymer, and preparing anthraquinone dye particles with bright colors through an interfacial polymerization method. The particle size of the anthraquinone dye particles can be controlled to be 300-450 nm, the anthraquinone dye particles are well dispersed in a plastic base material, and the color generation effect of the plastic base material is good. According to the anthraquinone dye particles, the double 85 anti-aging performance can be detected for more than 300 hours, and the QUV (Quality Ultraviolet) resistance can be detected for more than 200 hours.

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.

The invention relates to an anthraquinone-containing dye wastewater treatment method and system based on multistage synergy, belongs to the technical field of industrial wastewater treatment, and solves the problems of low COD (Chemical Oxygen Demand) removal rate, poor nitrification and denitrification and difficulty in decoloration in the existing anthraquinone dye wastewater treatment method in the prior art. The method comprises the following steps: respectively pretreating anthraquinone dye wastewater, azo pigment lake-free wastewater and azo pigment lake-containing wastewater, wherein the pretreatment of the anthraquinone dye wastewater comprises flocculation adsorption treatment, filter pressing dehydration treatment and catalytic ozonation treatment in sequence; mixing the pretreated wastewater with other wastewater in a factory, and carrying out multi-stage synergistic biochemical enhancement treatment on the obtained mixed wastewater; and carrying out precipitation mud-water separation on the mixed wastewater subjected to biochemical strengthening treatment, and carrying out multi-stage synergistic physical and chemical synergistic treatment on the separated supernatant. According to the invention, the COD removal rate and the nitrification nitrogen removal and decoloration effects can be improved.

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 belongs to the technical field of organic dyes, and particularly provides a novel anthraquinone dye for blue photoresist color paste and a synthesis method of the novel anthraquinone dye. A synthetic method of a novel anthraquinone dye for blue photoresist color paste comprises the following steps: (1) mixing an anthraquinone derivative and a sulfonyl chlorination reagent, and carrying out sulfonyl chlorination reaction to obtain an intermediate; and (2) uniformly mixing a double-nucleophilic reaction site compound, organic alkali and a solvent, then adding the intermediate, and carrying out substitution reaction to obtain the novel anthraquinone dye for the blue photoresist color paste. The novel anthraquinone dye has excellent colored light performance, and the thermal stability, the light stability and the contrast ratio are further improved. The novel anthraquinone dye is suitable for mixed or dye blue photoresist color paste, the brightness, transparency, weather resistance and dispersity of the color paste can be remarkably improved, and in addition, the synthetic method of the novel anthraquinone dye is simple in process, low in cost and suitable for industrial production.

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.