240 results about "Lightfastness" patented technology

To provide a fiber structure suitable for a wear for healthcare and nursing care workers in which inferior light resistance and heat resistance which are intrinsic to cationic dyeable polyester fiber dyed with a cationic dye are simultaneously overcome, and a method for manufacturing the fiber structure.SOLUTION: A fiber structure containing cationic dyeable polyester fiber dyed with a cationic dye contains a benzotriazole-based compound by 0.50 mass% to 3.50 mass% based on the mass of the fiber structure, and contains a zinc pyrithione-based compound by 0.05 mass% to 0.20 mass% based on the mass of the fiber structure.SELECTED DRAWING: None

The invention provides a high-temperature-resistant iron-chromium black pigment as well as a preparation method and application thereof, and belongs to the technical field of pigments. The preparation method comprises the following steps: preparing porous SiO2 / Al2O3 nanospheres, modifying the surfaces of the porous SiO2 / Al2O3 nanospheres by using tannic acid, depositing iron-containing and chromium-containing precipitates in situ, impregnating zirconium, calcining to obtain a precursor, and modifying the surfaces of the porous SiO2 / Al2O3 nanospheres by using polydopamine to obtain the high-temperature-resistant iron-chromium black pigment. The high-temperature-resistant iron-chromium black pigment prepared by the preparation method disclosed by the invention contains an aluminum element, so that the high-temperature-resistant, heat-resistant and flame-retardant properties of a prepared precursor are greatly improved, and the high-temperature-resistant iron-chromium black pigment contains silicon oxide, so that the temperature resistance and the wear resistance are obviously improved, and the high-temperature-resistant iron-chromium black pigment is relatively uniform in black, uniform in particle size, good in weather resistance and light resistance, good in dispersity and wide in application prospect.

The present invention discloses a preparation method of yellow azoxy and azo stilbene dyes. Using 4-nitrotoluene-2-sulfonic acid as a raw material and water as a reaction solvent, in the presence of choline hydroxide, dye yellow 11 is obtained through a condensation reaction. The molecular structure of choline hydroxide contains a quaternary ammonium salt group and a hydroxyl group. The hydroxyl group provides additional hydrophilicity, which helps to improve the solubility and dispersibility of the dye in an aqueous medium and enhance the affinity between the dye and the fiber. Choline hydroxide can effectively provide the alkaline environment required for the reaction, promote the synthesis reaction of the dye, and better control the selectivity and yield of the reaction. Since the choline hydroxide molecule contains a hydroxyl group, it can form hydrogen bonds with the sulfonic acid groups in the dye molecule, enhance the stability between dye molecules, and improve the light fastness and acid and alkali resistance of the dye. Using choline hydroxide not only optimizes the reaction conditions, improves the purity and yield of the dye, but also significantly improves the performance of dye yellow 11.

The invention discloses a high-light-resistance nano lignin-based composite coating as well as a preparation method and application thereof, and belongs to the technical field of wood protection. Compared with traditional unmodified lignin, the high-light-resistance nano lignin-based composite coating prepared by taking lignin nanoparticles prepared from quaternized lignin and nano TiO2 as raw materials has more excellent light resistance; according to the high-light-resistance nano lignin-based composite coating provided by the invention, the original texture of wood can be reserved, and the defects of a traditional protection method are effectively overcome. In addition, according to the preparation method of the high-light-resistance nano lignin-based composite coating, raw materials are saved, and the high resource utilization rate is achieved. The high-light-resistance nano lignin-based composite coating can remarkably improve the ageing resistance of wood, and the application prospect of the wood in the fields of outdoor landscape building materials, durable furniture, wood packaging and the like is expanded.

The invention relates to an environment-friendly inorganic pigment and a preparation process thereof, and relates to the technical field of inorganic pigments, the environment-friendly inorganic pigment is prepared from the following raw materials by weight: 40-50 parts of a metal oxide, 5-8 parts of a dopant, 3-5 parts of a fluxing agent, 4-6 parts of a filler, and 0.5-0.8 part of a surface modifier; the metal oxide is formed by mixing CoAl2O4 and Fe2TiO5 according to the mass ratio of (3 to 5): 1; the dopant is prepared from rare earth salt, manganese salt, nickel salt, niobium salt, strontium salt and zircon salt. The environment-friendly inorganic pigment is low in preparation energy consumption, environment-friendly, excellent in covering power, weather resistance and light resistance.

The invention discloses a preparation method of a high-performance organic pigment for water-based printing ink, which comprises the following steps: dispersing an organic pigment in deionized water, and adding an emulsifier to prepare an organic pigment dispersion liquid; adding a hydrophilic monomer and a cross-linking monomer into the organic pigment dispersion liquid, stirring, uniformly emulsifying, adding an initiator, and stirring to react; after the reaction is finished, cooling, centrifuging and washing to obtain a first layer of coated organic pigment; the preparation method comprises the following steps: mixing a hydrophobic monomer and a functional monomer, and adding an emulsifier and deionized water to prepare microemulsion; dispersing the first-layer coated organic pigment in deionized water, dropwise adding the microemulsion and an initiator, and stirring for reaction; and after the reaction is finished, cooling, centrifuging, washing and drying to obtain the high-performance organic pigment for the water-based printing ink. According to the method disclosed by the invention, the performance of the organic pigment is optimized through a double-layer coating structure, so that the organic pigment has the advantages of dispersity, light resistance, high tinting strength, water and oil resistance and acid and alkali resistance.

There is provided an inkjet ink having drying properties, lightfastness, and discharge stability and tablet printed matter including printed parts printed with the inkjet ink. An ink according to this embodiment contains: Red No. 102; reduced isomaltulose; and, as a solvent, water, monohydric alcohol, and a wetting agent, in which the monohydric alcohol includes at least one type among ethanol, NPA, and IPA, the wetting agent includes at least one type of glycerol and PG, the compounding ratio of the Red No. 102 is in the range of 0.5 mass% or more and 3.0 mass% or less based on the total mass of the inkjet ink, the compounding ratio of the monohydric alcohol is in the range of 30 mass% or more and 60 mass% or less based on the total mass of the inkjet ink, and the compounding ratio of the wetting agent is in the range of 0.05 mass% or more and 10 mass% or less based on the total mass of the inkjet ink.

Provided is a composition for forming a wavelength conversion film, which has excellent curability in air and forms a wavelength conversion film having good light resistance. The composition for forming a wavelength conversion film contains (A) an organic phosphor, (B) a cationic curable compound, and (C) a photoacid generator.

This invention relates to a high lightfast polyurethane composite material, comprising, from top to bottom, a polyurethane top layer, a polyurethane intermediate layer, a solvent-free polyurethane adhesive layer, and a base fabric layer. The solvent-free polyurethane adhesive layer is prepared from a solvent-free polyurethane adhesive layer slurry, which is a mixture of polyether-type polyol component A and isocyanate prepolymer component B. The polyether-type polyol component A is prepared from the following components in parts by weight: 100 parts polyether-type polyol, 20-80 parts filler, 0.38-0.48 parts composite catalyst, and 0.5-1 parts anti-yellowing agent. The composite catalyst is formed by combining organometallic catalysts and amine catalysts. The solvent-free polyurethane adhesive layer of this invention's high lightfast polyurethane composite material exhibits good adhesion, achieving excellent bonding with the base fabric and forming a good lightfast and heat-resistant system in each layer, resulting in a composite material with excellent lightfastness and heat-resistant color-changing properties.

The invention provides a preparation method of printing ink and a product thereof. According to the method, 2-(2-vinyloxyethoxy) ethyl acrylate and polyoxyethylene lauryl ether are adopted to improve the leakage resistance of the bottom-covering ink; the steady-state surface tension of the ink is set to be smaller than the surface tension of the ink holding part, and the ink use efficiency is improved by increasing the difference value between the two surfaces; the surface tension of the bottom layer ink is larger than that of the surface layer ink, so that the spreading capacity of the surface layer ink during superposition printing is improved; through deoxidation treatment, the jet stability of the ink is improved; 1, 2, 2, 6, 6-pentamethyl-4-piperidyl methacrylate is adopted, so that the storage stability of the ink is improved; surface layer ink and a carbonyl-containing printing medium are isolated through bottom covering ink, black scales are peeled off through N-cyclohexyl-2-pyrrolidone, and the light resistance of surface layer ink printed matter is improved.

The present invention discloses a preparation method of titanium dioxide for high-covering and high-lightfast laminated paper, comprising the following steps: S1. Take the initial product of titanium dioxide to prepare a titanium dioxide-based material slurry; S2. Adjust the pH of the slurry to 8-12, and at the same time add a magnesium source, a silicic acid source and a pH regulator, and maintain the countercurrent pH at 8-12 to homogenize and form a magnesium silicate film layer; S3. Adjust the pH of the slurry to 5-6, and at the same time add an aluminum source and a phosphoric acid source, and maintain the countercurrent pH at 5-6 to homogenize and form an aluminum phosphate film layer after homogenization; S4. Add a first aluminum source to adjust the pH to 11-13 and homogenize; then add a second aluminum source to adjust the pH to 3-5 and homogenize; finally add a third aluminum source to adjust the pH to 6.5-7.5 and homogenize to form a polycrystalline composite alumina film layer. The product obtained in this application has a uniform and dense film layer and high retention rate, lightfastness and covering power, making it can be well applied to laminated paper.

The present application relates to a kind of detection devices, in particular to a kind of printed matter quality detection device for medicine packaging box.The present application aims to provide a kind of printed matter quality detection device for medicine packaging box, which can detect the heat resistance, light resistance and friction resistance of medicine packaging box.The present application provides such a kind of printed matter quality detection device for medicine packaging box, comprising conveyor, conveying baffle, visual detector, controller, the conveying belt of conveyor is uniformly spaced and connected with conveying baffle, visual detector is installed on one side of conveyor, and controller is arranged on conveyor.The present application can detect the light resistance of medicine packaging box by the irradiation of strong light lamp, and can also detect the heat resistance of medicine packaging box by heating assembly, and can detect the friction resistance of medicine packaging box by scratching mechanism, so as to realize the effect of detecting the light resistance, heat resistance and friction resistance of medicine packaging box.

The purpose of the present invention is to provide a laminate excellent in light resistance without being provided with a flattening layer, and a manufacturing method capable of efficiently manufacturing the laminate. The present invention relates to a laminate having a dye-containing resin layer and an inorganic compound layer on both surfaces of the dye-containing resin layer, wherein the arithmetic average roughness Ra1 of both surfaces of the dye-containing resin layer as measured with an atomic force microscope is 2.5 nm or less, or the arithmetic average roughness Ra2 of the surfaces of the two inorganic compound layers as measured with an atomic force microscope is 2.3 nm or less.

A dichroic bis-azo biphenyl dye of the following formula:The substituents R1, R2, R3, R4 are alkyl (CnH2n+1) or alkenyl (CnH2n−1) groups with n=1-18. At least one substituent among R1R2R3R4 is different from the other substituents. A benzidine-free method of making a dichroic bis-azo biphenyl dye is provided in which the biphenyl portion of the dye is formed from different first and second mono-azo dyes by a cross-coupling reaction, which may be a Suzuki reaction. A polarizer is formed from a photoaligned layer of the bis-azo biphenyl dye on a substrate and exhibits a dichroic ratio of at least 40. Chemical modification of the photoaligned bis-azo biphenyl dye layer creates a broad-band thin film polarizer with low light scattering and high thermal and photo tolerances.

The purpose of the present invention is to provide a heat-sensitive recording medium which has low concern about the safety of endocrine disruptors and the like, excellent color development properties and light resistance, and excellent heat resistance. A heat-sensitive recording material (1) has a configuration in which a heat-sensitive recording layer (3) is laminated on a base material (2). The heat-sensitive recording layer (3) contains a color former, a non-phenolic color developer, and a non-phenolic light stabilizer. The non-phenolic light stabilizer contains a histamine light stabilizer. The non-phenolic color developing agent preferably contains a compound represented by formula (1) and / or a compound represented by formula (2). (Definitions of the symbols in formulae (1) and (2) are as defined in the description) # imgabs0 # imgabs1 #

The utility model discloses a double-layer woven fabric, and relates to the technical field of woven fabrics. According to the technical scheme, the sunscreen cloth is characterized in that the sunscreen cloth comprises an inner layer and an outer layer which are fixedly connected with each other, a plurality of ventilation grooves are formed in the inner layer, sunscreen pieces with the same relative positions as the ventilation grooves are fixedly connected to the inner layer, the cross section of each sunscreen piece is in a wave shape, and a plurality of through grooves are formed in the length direction of the outer layer; according to the sunscreen fabric, the sunscreen piece is arranged to block light rays penetrating through the outer layer to enter the interior of the fabric, due to the arrangement of the polyester profiled fibers, the light resistance of the fabric is guaranteed, meanwhile, external air flowing in the fabric is increased, and the air permeability of the fabric is improved. And the whole sun-proof and air-permeable performance of the fabric is enhanced.

To provide a dye composition for polylactic acid fibers excellent in dye exhaustion of each of a yellow disperse dye, a red disperse dye, and a blue disperse dye, excellent in reproducibility due to equal dyeing speed during dying of each color, and excellent in light-fastness, a dyed product using the same and a dying method.SOLUTION: The dye composition for polylactic acid fibers of the present invention contains a yellow disperse dye represented by compounds of formula (1) and / or formula (2) (DISPERSE ORANGE 61, DISPERSE ORANGE 155), a red disperse dye represented by compounds of formula (3) (DISPERSE RED 167, DISPERSE RED 167.1), and a blue disperse dye which includes compounds represented by formula (4) (DISPERSE BLUE 79, DISPERSE BLUE 79.1) and / or a mixture of two isomers represented by formula (5) (DISPERSE BLUE 54).SELECTED DRAWING: None

The invention relates to the technical field of leather chemical industry and leather manufacturing, in particular to a tannin extract based on metal complex modification and a preparation method and application of the tannin extract based on metal complex modification. 15 to 25 parts of aluminum sulfate; 5-10 parts of lanthanum sulfate / cerium sulfate; 0.5-2 parts of sulfuric acid; 0.5 to 2 parts of citric acid; and 500 to 600 parts of water. The modified tannin extract which is light in color, good in dispersity and excellent in tanning property is prepared through the steps of oxidative degradation, chelating masking, metal synergistic complexing and the like. The method is simple in process, environmentally friendly, efficient and suitable for industrial production, and the problems that a traditional vegetable tanning agent is low in whiteness and poor in light resistance stability when applied to white leather, and traditional metal tanning leather is hard in hand feeling, insufficient in light resistance and the like are effectively solved.

The present invention provides a reversible thermochromic composition which exhibits black color upon coloration and colorless color upon discoloration, and has excellent light resistance, by using a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The means for solving the problem is a reversible thermochromic composition comprising: (a) a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, (b) a compound having a specific structure as an electron-accepting compound, and (c) a reaction medium which allows the electron transfer reaction between the (a) component and the (b) component to occur reversibly in a specific temperature range, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition.

The invention discloses a processing method of high-solarization durable anti-ultraviolet functional knitted fabric, which comprises the following steps: preparing chinlon yarn with a core-sheath structure, a core layer of the chinlon yarn is full-dull chinlon in which nano titanium dioxide particles are uniformly dispersed, and a sheath layer comprises the following components in percentage by mass: 75-87% of chinlon fiber, 10-20% of rare earth oxide and 3-5% of coating agent, the mass ratio of the sheath layer in the chinlon yarn is 20-30%; performing ultrahigh stitch length weaving; and dyeing treatment. The knitted fabric woven by the method is compact in structure, good in uniformity and low in porosity, has excellent anti-ultraviolet performance, high light fastness and durability, can realize UPF100 < + >, high light fastness greater than or equal to 4-5 levels, T (UVA) AV < 4%, still keeps excellent anti-ultraviolet performance, color fastness and mechanical properties after long-term solarization and multiple washing, and has a wide application prospect. Unification of anti-ultraviolet functionality and durability is achieved, the service life of the fabric is long, and permanent and efficient sun protection can be provided for the human body.

This invention discloses a low-reflectivity ink and its preparation method, belonging to the field of printing ink technology. The low-reflectivity ink of this invention effectively solves the problem of existing inks' difficulty in simultaneously achieving low reflectivity, high adhesion, and high light-blocking performance by selecting polyester resin, adipic acid dihydrazide modifier, and molybdenum nitride-carbon black composite filler. The polyester resin, as the base resin, has good film-forming properties and compatibility; its active groups can undergo cross-linking reactions with adipic acid dihydrazide, improving the density and adhesion of the film layer. The nano-sized carbon black in the composite filler has excellent light absorption properties, effectively reducing ink reflectivity. Micron-sized molybdenum nitride, as the framework particle, enhances the mechanical strength and scratch resistance of the film layer, forming a complementary light-absorbing structure with the nano-sized carbon black, further improving light-blocking and mechanical properties, while also improving the ink's lightfastness and preventing coating deterioration after long-term use.

The invention relates to the technical field of fabric weaving, and discloses a functional spandex fabric which is formed by weaving spandex fibers on a machine after twisting, twist setting, warping and drafting. Wherein the spandex fiber is prepared by fully mixing a high-barrier polyvinyl alcohol modified polyurethane emulsion and a functional compound to form a spinning solution and then carrying out wet spinning; the high-barrier polyurethane emulsion is a polyurethane emulsion with organic fluorine in the structure; the functional compound is a compound with hindered amine groups and cinnamyl Schiff base in the structure. The high-barrier polyvinyl alcohol is prepared to enhance the hydrophobic antifouling performance of the spandex fabric, so that the fabric is not prone to being contaminated by oil stains, the purpose of easy cleaning is achieved, the light fastness and antibacterial performance of the fabric are improved by preparing the functional compound, the fabric is prevented from yellowing due to long-time illumination and physiological activities of bacteria, and the fabric has a good anti-fouling effect. The service life of the fabric is greatly prolonged.

The invention discloses a bisphenol-substance-free phenolic synthetic tanning agent as well as a preparation method and application thereof, and relates to the technical field of tanning. According to the phenolic synthetic tanning agent, at least one of the R group and the X group is selected from an amide structure containing a sulfonic acid group, so that the hydrophilicity and the tanning effect of the synthetic tanning agent are better, substances such as bisphenol S and bisphenol F which have risks to the environment and health are not contained, and the tanning agent is green, environmentally friendly, safe, healthy and suitable for industrial production. And the tanned leather product has better softness, fullness and light resistance, and has better application value.

An optical film includes a substrate, an optical function layer, and a colored layer. The substrate has an ultraviolet shielding rate of 85% or higher according to JIS L 1925. The optical function layer is formed on a first surface side of the substrate. The colored layer is formed on a second surface side. A difference ΔE*ab between chromaticities before and after a lightfastness test is 5 or less. A first coloring material includes a maximum absorption wavelength of 470 to 530 nm and an absorption spectrum half width of 15 to 45 nm. A second coloring material includes a maximum absorption wavelength of 560 to 620 nm and an absorption spectrum half width of 15 to 55 nm. A third coloring material has a wavelength having the lowest transmittance in a wavelength range of 400 to 800 nm is in a range of 650 to 800 nm.

To provide a fiber laminated structure and waterproof breathable clothing having a highly practical waterproof breathable function with excellent light fastness and excellent recycling efficiency, the fiber laminated structure of the present invention is a fiber laminated structure including a 10 to 30 μm-thick non-porous film including a polyester film laminated on one surface of a woven fabric including a polyester fiber, wherein the polyester film contains 0.05 to 1.0 mass % of an ultraviolet absorber and a light stabilizer each, and 0.1 to 1.0 mass % of a titanium oxide having a band gap of 3.1 (eV) or more. The above fiber laminated structure can be suitably used for the waterproof breathable clothing.

The invention relates to the technical field of preparation of novel coatings, in particular to a sun-proof red pigment for a high-heat-resistance coating and a preparation process of the sun-proof red pigment, and the sun-proof red pigment comprises the following raw materials: modified 2B acid, modified 2, 3 acid, modified lanthanum nitrate, a precipitator and rosin. According to the invention, the modified 2B acid is subjected to surface coating treatment, so that the thermal stability of the modified 2B acid and the dispersity of the modified 2B acid in a reaction system are enhanced; the modified 2, 3 acid is subjected to molecular activation treatment, so that the reaction activity and the coupling efficiency are improved; the modified lanthanum nitrate is subjected to surface modification, so that the compatibility and complexing ability of the modified lanthanum nitrate in an organic phase are enhanced; the modified lanthanum nitrate can be more sufficiently and stably coordinated and complexed with the activated 2, 3 acid and the wrapped 2B acid derivative, so that a pigment molecule color development system is more compact and stable, and the pigment is more heat-resistant and sun-proof on the whole.

The invention relates to a vertical polarizing film. The present invention addresses the problem of providing a vertical polarizing film having low haze, low dye transferability, and excellent light resistance. [Solution] The vertical polarizing film is a cured film of a composition containing two or more polymerizable liquid crystal compounds and a dichroic dye, and the absorbance of the vertical polarizing film satisfies formula (1) Azgt; (Ax + Ay) / 2, Formula (2) 0.001 < = Ax < = 0.1 and Formula (3) Ax (z = 60) / Axgt; 5, the polymerizable liquid crystal compound shows a smectic liquid crystal phase, the polymerizable liquid crystal compound contains the polymerizable liquid crystal compound (A) and the polymerizable liquid crystal compound (B) at a mass ratio of the polymerizable liquid crystal compound (A) to the polymerizable liquid crystal compound (B) of 85 / 15 to 15 / 85, and the mass of the dichroic dye is less than 2.5 parts by mass when the total mass of the polymerizable liquid crystal compound is taken as 100 parts by mass. The thickness of the vertical polarizing film is 0.65 [mu] m or more.

The invention relates to a fluorine-containing fluorane compound, a light-resistant thermosensitive dye and a preparation method and application thereof, belongs to the technical field of fine chemical engineering, and solves the problem of insufficient light resistance of a thermosensitive material of the existing thermosensitive dye. The molecular structure of the fluorane compound provided by the invention contains fluorine. The preparation method comprises the following steps: step 1, adding 2-(2-hydroxy-4-diethylaminobenzoyl) benzoic acid, 3, 5-bis (trifluoromethylphenol) and mixed strong acid into a reaction container, and carrying out condensation reaction; step 2, cooling, adding an organic solvent into a reaction system, then slowly adding an alkaline solution, heating, refluxing and stirring, and carrying out ring-closure reaction to obtain a reaction solution; and 3, separating the reaction liquid to obtain an organic phase, washing the organic phase to be neutral, separating the liquid, collecting the neutral organic phase, carrying out reduced pressure distillation to remove the organic solvent, and drying to obtain a fluorine-containing fluorane compound solid.

The invention relates to a narrow-half-peak-width performance color master batch and a preparation method thereof, and relates to the field of color master batch materials and preparation thereof.The narrow-half-peak-width performance color master batch is prepared from, by mass, 35-50 parts of polymethyl methacrylate, 15-20 parts of polyethylene glycol terephthalate, 0.1-0.2 part of inorganic pigment, 4-8 parts of dispersing agent, 1-2 parts of nucleating agent and 0.5-1 part of modified antioxidant. The preparation method comprises the following steps: drying polymethyl methacrylate and polyethylene glycol terephthalate, adding an inorganic pigment, a dispersing agent, a nucleating agent and a modified antioxidant, stirring and mixing, melting and blending, cooling, pelletizing, screening and drying to obtain the color master batch with narrow half-peak width performance. The color master batch prepared by the invention has high saturation and purity, and the color master batch has good light resistance and heat resistance.

The invention discloses a high-fall, high-color and high-gloss injection molding panel colored drawing process which comprises the following steps: S1, selecting printing ink with a corresponding color, and putting the printing ink into each corresponding ink box in a colored drawing machine; s2, the plastic panel is placed on a colored drawing machine, and ink-jet colored drawing is conducted on the plastic panel through a spray head; s3, UV curing is carried out after colored drawing is completed; the ink is prepared from the following components in parts by weight: 10 to 20 parts of inorganic pigment, 5 to 15 parts of ethyoxyl ethyoxyl ethyl acrylate, 35 to 45 parts of 2-phenoxyl ethyl acrylate, 5 to 15 parts of N-vinyl caprolactam and 1 to 10 parts of dipropylene glycol diacrylate. No volatile organic compound is discharged in the ink, and no VOC is generated when the ink is cured, so that the environmental pollution is greatly reduced; the obtained pattern has good adhesive force, alcohol resistance, light resistance and humidity and heat resistance on a plastic part, and has the characteristic of high fall, and the colored pattern has the characteristics of high color, high gloss and high light transmission, and is more diversified in color.