90 results about "Lightfastness" patented technology

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 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 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 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.

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 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.

The present application relates to a kind of fluorine-containing fluorane compound, light-resistant thermosensitive dye and preparation method and application, belong to fine chemical technology field, solve the problem of insufficient light resistance of existing thermosensitive dye heat-sensitive material.The fluorane compound of the present application contains fluorine in molecular structure.Preparation method includes the following steps: step 1: 2-(2-hydroxy-4-diethylaminobenzoyl) benzoic acid, 3,5-bistrifluoromethylphenol and mixed strong acid are added to reaction vessel, condensation reaction occurs;Step 2: cooling, organic solvent is added to the reaction system, then slowly add alkaline solution, heating reflux stirring, ring-closing reaction occurs, to obtain reaction liquid;Step 3: the reaction liquid is separated, to obtain organic phase, water washing to neutral, separation, collect the organic phase of neutral, remove organic solvent by distillation under reduced pressure, dry, to obtain fluorine-containing fluorane compound solid.

The present application provides a kind of sealing sheet even in the case of being applied to the display of multiple light emitting elements as light source, excellent light resistance, also excellent burying, and the display with sealing layer.The technical problem is solved by the following sealing sheet, the sealing sheet includes the resin composition layer containing resin (A) and burying property modifier (B), the glass transition temperature (Tg) of resin (A) is-30~40 ℃, and the weight average molecular weight (Mw) is 10,000~1,000,000, burying property modifier (B) contains phosphorus-containing compound (B1) and phenolic hydroxyl-containing compound (B2), the thickness Ta of the resin composition layer is 1 μm~100 μm, and the sealing sheet is used for the display of multiple light emitting elements as light source.

An object of the present application is to provide an organic EL element having a capping layer composed of a material having the following properties: (1) high light absorption coefficient, (2) high refractive index, (3) good stability of thin film, (4) excellent durability, (5) excellent light resistance, and (6) no absorption in the respective wavelength regions of blue, green, and red. Since the arylamine-based material having a specific structure of the present application is excellent in stability of thin film and durability, an amine compound having a specific benzoxazole ring structure and a high refractive index is selected as a material constituting the capping layer, and an organic EL element using the material having a high absorbance at a wavelength of 400 nm to 410 nm in an absorption spectrum at a concentration of 10 ‑5 mol / L shows good element characteristics.

An embodiment of the present invention provides an optical film including a light-transmitting substrate, wherein the light-transmitting substrate includes: a polymer resin; a fiber-shaped filler; and a non-nitrogen-based ultraviolet absorber, and the optical film has a yellowness index (Y.I.) of 4.0 or less before a light resistance test and a yellow index change (Y.I.) of 4.5 or less after the light resistance test. The light resistance test is performed for 300 hours by using a xenon lamp under the conditions of a daylight filter, 12 kW 0.8 W / m2 at 420 nm, 30°C / 30 RH% chamber, and 55°C black panel. In addition, provided is a display device comprising the optical film.

This invention provides an ultraviolet absorber that efficiently absorbs harmful light in the wavelength range of 380-400 nm and suppresses the absorption of light with wavelengths above 400 nm, which is a cause of initial yellowing, thereby providing a component with less influence from harmful light and a superior appearance, as well as excellent light resistance and heat resistance, and furthermore, excellent light resistance and heat resistance, i.e., durability. [Solution] The highly light-resistant ultraviolet absorber of the present invention consists of a 2-phenylbenzotriazole derivative having a thioaryl ring group, such as the following formula (3). [Formula 1] TIFF2026137696000066.tif9132 (in the formula, PhBzT 1c and PhBzT 2c Each of these may independently have a substituent, a thioaryl ring group (-SA 1c It exhibits a 2-phenylbenzotriazole skeleton with -S-) attached, A 1c It contains residues of a phenyl ring or naphthyl ring.

The utility model discloses a light shielding type dacron cotton fabric relates to textile technical field. Its technical scheme main points are: including surface layer, the one side of surface layer forms a plurality of contact piece, the side fixedly connected with a plurality of support piece of surface layer away from contact piece, the support piece forms the sheltering piece with the width greater than the support piece width, the projection plane of contact piece falls in the sheltering piece away from the side of support piece, the sheltering piece and surface layer between form the air -permeable channel, surface layer and sheltering piece are set up respectively with a plurality of through -hole no.

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.

Disclosed is a polarizing plate protective film containing a resin and a pigment compound, which is excellent in light resistance and has no bleeding, and which is capable of protecting a display element from outdoor light and causing no light emission loss to light emission of the display element when used in a display device, particularly an organic electroluminescent display device. The polarizing plate protective film of the present application is characterized by containing a compound having a structure represented by the following Formula 1.

According to one embodiment of the present invention, provided are a dye, a photosensitive resin composition to which the dye is applied, and a display device to which the photosensitive resin composition is applied. The dye includes: a chromophore containing five or more acrylate groups; and a protective group protecting the chromophore, and therefore has excellent light resistance, and thus is not deformed by external sunlight, and also has excellent chemical resistance and reflectance characteristics, and thus is not changed in color by other solvents during a process, even when molded at a low temperature.

Provided is a resin composition which has a high luminance, and which is capable of inhibiting color change and decrease in luminance in a light resistance test in a high-temperature, high-humidity environment in an oxygen-shielded state. The resin composition according to the present invention contains (A) a coloring agent, (B) an organic solvent, (C) an alkali-soluble resin, (D) a photopolymerization initiator, and (E) a triazine compound (e1) having a specified structure, with (A) the coloring agent including a phthalocyanine compound (a1) having a specified chemical structure.

To provide a decorative sheet excellent in light resistance even when a surface protective layer containing a biomass-derived component is formed, and a transfer film.SOLUTION: A decorative sheet comprising at least a transparent resin layer and a surface-protecting layer, wherein the surface-protecting layer contains a cross-linked curable resin as a main component, an ultraviolet absorber, and a light stabilizer, the cross-linked curable resin contains at least one biomass-derived component and at least one (meth) acrylic monomer, and the ultraviolet absorber contains at least two ultraviolet absorbers having a benzotriazole skeleton.SELECTED DRAWING: Figure 1

The application belongs to the technical field of functional pigments, and particularly relates to a preparation method of high-light-resistance composite pigments. The preparation method of the application is that: after pretreatment and cleaning, hexagonal boron nitride is obtained to be modified boron nitride nanosheet, and then the modified boron nitride nanosheet is compounded with organic pigments to obtain ideal high-light-resistance composite pigments. The modified boron nitride nanosheet used in the application can be better combined with the organic pigments by using the principle of entropy increase, the rich electron boron-nitrogen plane of the hexagonal boron nitride and the aromatic conjugated system of the lithol red molecules produce pi-pi stacking interaction, and then the two are driven to self-assemble to form high-light-resistance composite pigments, and the high-light-resistance composite pigments form a structure that is compact. The high-light-resistance composite pigments obtained by the application still maintain the chemical structure and gloss of the original organic pigments, and have excellent stability and good light resistance, and the problem of poor light resistance of the organic pigments is solved.

To provide a curable composition having high stability of quantum dots, excellent in dispersibility of the quantum dots, and excellent in reliability such as heat resistance and light resistance, and optical characteristics.SOLUTION: A curable composition comprising: (A) a quantum dot comprising a first functional group represented by the following Chemical Formula 1 and a second functional group having a different structure from the first functional group; and (B) a polymerizable compound: wherein, in Chemical Formula 1, each substituent is the same as that defined in the specification.SELECTED DRAWING: None