101results about How to "Good light fastness" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

The invention relates to a heat transfer printing receiving sheet and a preparation method thereof, and belongs to the technical field of soft label printing. The heat transfer printing receiving piece comprises a printing layer, a heat insulation layer, a base material and a back coating layer which are sequentially arranged from top to bottom. The back coating is prepared from the following raw materials in parts by weight: 13 to 16 parts of first resin, 2 to 3 parts of filler, 0.1 to 0.5 part of polyethylene glycol and 0.01 to 0.05 part of lithium chloride; the heat insulation layer comprises the following raw materials in parts by weight: 9-11 parts of an adhesive and 4-7 parts of hollow particles; the printing layer is prepared from the following raw materials in parts by weight: 19 to 22 parts of second resin, 0.1 to 1 part of aromatic hydrocarbon modified polysiloxane, 0.1 to 1 part of polyethylene glycol and 0.1 to 1 part of polyisocyanate curing agent. The invention also discloses a preparation method of the thermal transfer receiving sheet, and the thermal transfer receiving sheet can prevent thermal fusion between the thermal transfer sheet and the thermal sublimation ribbon even under the condition of high printing speed, is good in demolding property with the thermal sublimation ribbon, is aging-resistant, and can improve the optical density of a printed image.

The invention discloses a lutein ester microcapsule preparation process, which comprises: extracting a lutein ester solution, preparing marigold and n-hexane, washing marigold, removing soil and impurities, airing, and grinding into a fine powder with a mesh number of less than 200 mesh after airing. The lutein ester microcapsules are dried in a freeze-drying mode, the activity of the lutein ester microcapsules can be ensured, structural damage and deformation in the drying process are reduced, the embedding rate of the lutein ester microcapsules is increased, the stability and bioavailability of the lutein ester microcapsules can be improved by adding the coenzyme Q10 into the lutein ester solution, and the lutein ester microcapsules can be applied to preparation of capsules. According to the present invention, the lutein ester solution is added to the wall material, the oxidation degradation process of the lutein ester is delayed so as to improve the high temperature resistance, and the surfactant is added during the lutein ester solution and wall material mixing process so as to improve the solubility and the dispersibility of the lutein ester, such that the lutein ester can be well wrapped by the vegetable glue wall material, protection can be achieved, and the light resistance can be improved; and the shelf life is prolonged.

The invention discloses a pyriproxyfen microcapsule suspending agent. The pyriproxyfen microcapsule suspending agent is prepared from the following raw materials in percentage by weight: 8 to 12 percent of pyriproxyfen, 1 to 3 percent of isocyanate, 0.1 to 0.5 percent of polyamine and the balance of deionized water. Compared with the traditional dosage form, the pyriproxyfen microcapsule suspending agent has the advantages that the toxicity of aquatic organisms can be obviously reduced; the field dosage can be greatly reduced, the environmental pollution and pesticide residues are effectively reduced, and the production and use cost is reduced; the dosage form of the microcapsule suspending agent accords with the trend of future agricultural environmental protection development; the smell can be reduced, the pesticide effect is improved, and the lasting period is prolonged.

The invention relates to a preparation method of a pH response type double-layer membrane capable of improving the stability of a natural pigment. The preparation method comprises the following steps: S1, preparing zein-anthocyanin binary nanoparticles; s2, preparation of a zein-anthocyanin-sodium alginate ternary nano material, wherein the zein-anthocyanin-sodium alginate ternary nano material is prepared; and S3, preparing the pH response type double-layer membrane. According to the prepared pH response type double-layer film, on one hand, the deterioration speed of food can be delayed, and the good effect of prolonging the shelf life is achieved; the retention time of the plant source pigment in the packaging film is prolonged, so that the prepared packaging film has a long-acting service life, and the application limitation is reduced; on the other hand, the prepared packaging film has good pH responsiveness, the quality condition of food contained in the packaging film can be visually reflected, and convenience and sense of safety are provided for consumers.

The invention discloses a printing process of a brocade-cotton blended camouflage fabric. The production process comprises the following steps: pretreatment, printing, steaming and baking, reduction soaping and color fixation, sizing, tentering and color fixation, preshrinking and the like. The camouflage printed fabric prepared by the process has the advantages of color fastness to light (dark color grade 6 or more and light color grade 5 or more), composite color fastness to light and sweat (grade 4-5), color fastness to dry rubbing (grade 4-5), color fastness to wet rubbing (grade 2.5-4), color fastness to washing (grade 4-5), color fastness to perspiration (grade 4-5) and color fastness to hot pressing (grade 4-5), excellent color fastness and uniform color fixation. Meanwhile, the produced camouflage fabric can control the reflectivity of light rays in a near-infrared light region (760-1200 nm) within a required range, so that the fabric has excellent infrared monitoring prevention performance and camouflage effect. The seven-color camouflage fabric printing is achieved, colors are richer, the camouflage effect is better, and the requirements of military garments are better met.

The invention relates to the field of ink, in particular to water-based ink for cigarette package printing and a preparation method of the water-based ink, and the water-based ink is prepared from the following components in parts by weight: 30-60 parts of water-based acrylic emulsion, 16-32 parts of water-based styrene-acrylic emulsion, 21-36 parts of enhanced pigment filler, 0.2-1.2 parts of dispersing agent, 0.1-1 part of defoaming agent, 0.6-1.8 parts of flatting agent, 2.3-4.6 parts of coalescing agent and 20-40 parts of deionized water. According to the present invention, the traditional pigment is replaced with the enhanced pigment filler, such that the good dispersion and the good adhesion are provided, and the glossiness, the dyeing property and the light resistance are significantly improved.

The invention relates to the technical field of civil engineering, in particular to a method for paving a temporary traffic road of a sand foundation based on a high-strength polyethylene material. According to the method, static pressure is applied to the sand foundation through a vibratory roller, then vibratory compaction is conducted, steel pipes are driven into the sand foundation for reinforcement, flatness measurement is conducted on the surface of the sand foundation through a measuring instrument, trimming is conducted through a land leveler, and an appropriate cross slope and an appropriate longitudinal slope are arranged according to the road design requirement; then high-strength polyethylene plates are laid on the surface of the sand foundation; the polyethylene plate prepared by the invention not only has better mechanical properties, but also has excellent wear resistance and illumination resistance, and the quality of the polyethylene plate is effectively ensured; the method for paving the temporary traffic road of the sand foundation based on the high-strength polyethylene material is used for paving the temporary road and has a wider market prospect.

This invention discloses a gravure printing ink composition and its preparation method. The ink, by weight, comprises: 15-35 parts chlorinated polypropylene, 10-20 parts EVA-40W, 4-8 parts rosin-modified resin, 0.3-0.8 parts polyketide resin, 0.1-0.3 parts chlorinated ether resin MP45, 0.3-0.8 parts silica, 0.05-0.15 parts antistatic agent, 0.2-0.5 parts dispersant, 0.1-0.3 parts modified aluminum silicate AM660, 8-12 parts benzidine yellow, 6-10 parts fast red BHXL-T, 3-5 parts permanent orange yellow No. 13, 3-7 parts calcium powder, and 30-50 parts mixed solvent. During preparation, each resin is pre-dissolved separately, then mixed with pigments, additives, etc., and ground to a fineness ≤15μm. The ink of this invention has bright colors, good light resistance, excellent adhesion, antistatic properties, and printability, and is particularly suitable for gravure printing on polyolefin films.

[Problems] To provide a reversibly thermochromic composition having excellent contrast between a colored state and a decolored state, and excellent light resistance, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition. [Solution] Disclosed is a reversibly thermochromic composition including: (a) an electron-donating color-developing organic compound; (b) a combination of a compound having a specific structure as an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition.

The present application relates to the field of coatings, and in particular to a coating material for a film-coated aluminum plate and a preparation method thereof. The coating material for a film-coated aluminum plate comprises, by weight, 75 to 95 parts of aqueous polyurethane emulsion, 25 to 40 parts of modified functional resin, 20 to 30 parts of modified particles, 5 to 15 parts of auxiliary agent, 6 to 12 parts of dispersant, 2 to 5 parts of adhesion promoter, 5 to 8 parts of curing agent, 1.5 to 3 parts of leveling agent, 0.5 to 1.5 parts of defoaming agent, and 140 to 200 parts of deionized water. The coating material for the laminated aluminum plate prepared in the present application uses polyurethane as the main material to ensure its adhesion to the laminated aluminum plate, and on this basis, greatly enhances the waterproofness, antistatic properties, weather resistance, light resistance and other properties of the coating material during long-term use. Different from the existing surface coating materials for laminated aluminum plates, it can take into account and balance multiple surface properties, thereby enhancing the application effect of the laminated aluminum plate, avoiding the technical problems of the existing coating materials for laminated aluminum plates, and has very excellent market and application prospects.

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.

According to the construction process, a hopper feeding device, a transmission system, a heating extrusion device, a cooling shaping device, a cutting device, a thread rolling device, a traction device, a grinding device and a sterilization device are arranged. The acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good non-toxic biodegradability, the acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good in-vivo biocompatibility, degradation products of lactic acid and glycolic acid can participate in metabolism of a human body, and finally carbon dioxide and water are formed and discharged out of the body. Meanwhile, the material is degraded by organisms and microorganisms in the natural world in the natural environment; by adding the traditional Chinese medicine pigment and adding a small amount of surfactant (phenol polyethylene glycol solvent or zinc naphthenate), the finished acupuncture needle has excellent weather resistance, light resistance, chemical corrosion resistance and ultraviolet resistance.

This invention discloses a light-resistant biodegradable plastic, its preparation method, and its application in dustproof netting. The raw material composition of the light-resistant biodegradable plastic, by weight, includes: 60-70 parts polylactic acid (PLA), 10-15 parts lignin, 5-10 parts toughening agent, 5-8 parts UV-shielding agent, 3-5 parts compatibilizer, 1-2 parts composite nucleating agent, and 0-0.5 parts colorant. The UV-shielding agent is composed of sericite, glass microspheres, and fluorite powder. The layered structure of sericite and the spherical structure of glass microspheres reflect ultraviolet light from multiple angles, while the fluorite powder absorbs and converts the transmitted ultraviolet light, thereby shielding ultraviolet rays and increasing the light resistance of PLA. A compatibilizer is used to modify the nano-lignin, which absorbs ultraviolet light and converts the light energy into heat energy in a timely manner, preventing ultraviolet light from attacking the PLA chain segments. It has stable processability, low cost, and stable raw material supply, making it suitable for use in dustproof netting.

The present invention addresses the problem of providing: a reversibly thermochromic composition which has excellent contrast between a color-developing state and a color-decoloring state and also has excellent light resistance; and a reversibly thermochromic microcapsule pigment which contains the reversibly thermochromic composition. The solution is a reversible thermochromic composition and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The reversible thermochromic composition comprises: (a) an electron-donating color-developing organic compound; (b) a combination of compounds having a specific structure as an electron-accepting compound; and (c) a reaction medium that reversibly causes an electron transfer reaction between the component (a) and the component (b) to occur in a specific temperature range.

The invention belongs to the technical field of reactive dyes, and particularly provides a preparation method of a bright yellow reactive dye. The bright yellow reactive dye prepared by the method disclosed by the invention is a bisazo dye, the fixation rate is relatively high, the color of a dyed fabric is full, sulfonic groups are increased, and the dye solubility is good; the dye is high in solubility and improvement rate, good in leveling property, green and bright in color, good in light fastness and wet rubbing fastness, good in cleaning rate and suitable for dyeing various cellulosic fibers, the fixation rate reaches 65%, the dye belongs to environment-friendly and energy-saving dye, the product is suitable for dyeing various cellulosic fibers, the production process is simple, clean and environmentally friendly, spray drying is adopted after synthesis, the wastewater discharge amount is reduced, and the production cost is reduced. And the national energy conservation and emission reduction policy is met.

Provided is a fluorene compound represented by formula (1) and having a sulfonic acid ester structure and an allyl group. # imgabs0 # (In the formula, each R1 independently represents a hydrogen atom or a methyl group. Each R2 independently represents a hydrocarbon group having 1-20 carbon atoms, some or all of the hydrogen atoms thereof may be substituted by a halogen atom, a nitro group or a cyano group, and an ester bond or an ether bond may be interposed between carbon-carbon bonds thereof. ).

The present application relates to the technical field of polymer material processing and synthesis, and discloses a modified polyamide flame retardant plastic for automobile water chamber and its preparation method, wherein the modified polyamide flame retardant plastic comprises the following raw materials: polyamide, flame retardant, inorganic filler, reinforcing component; based on the reinforcing component, the reinforcing component comprises reinforcing fiber with a weight percentage of 90-95%, and the rest is alkali-free glass fiber; the reinforcing fiber is obtained by crushing alkali-free glass fiber cloth and sisal cloth of equal area after adhesive, and the adhesive is acetal glue dispersed with antimony oxide. The preparation method is: the remaining raw materials except inorganic filler and reinforcing component are mixed to obtain mixture B; mixture B is added from the main feed port of a twin-screw extruder, and the inorganic filler and reinforcing component are mixed and added at the side feed port, and the modified polyamide flame retardant plastic is obtained by melt extrusion granulation. The modified polyamide flame retardant plastic in the present application effectively improves the problems of poor flame retardancy and mechanical properties of polyamide.

A highly flexible UV-proof hardened film, the hardened film comprises a transparent support and an anti-glare hardened layer coated on any surface of the transparent support; the anti-glare hardened layer is formed by curing and drying a coating liquid with UV light, the coating liquid comprises the following substances in parts by weight: 15 to 45 parts by weight of polyurethane acrylate oligomer; 5 to 30 parts by weight of cellulose fiber polybenzotriazole complex; 30 to 60 parts by weight of organic solvent; 0.01 to 2.5 parts by weight of leveling agent; 0.75 to 4.5 parts by weight of photoinitiator; wherein the cellulose fiber polybenzotriazole complex is composed of nano-scale cellulose fibers and nano-scale polybenzotriazole particles. The present invention adds a cellulose fiber polybenzotriazole complex to the anti-glare coating of the hardened film, so that the hardened film has excellent UV protection without reducing the curing effect of the coating, and has a light transmittance and clarity similar to that of a transparent film, and has excellent optical properties.

The utility model provides a nylon sunscreen fabric, which belongs to the technical field of textile fabrics and comprises a surface layer, a waterproof layer and an inner layer. The two waterproof layers are arranged on the two sides of the inner layer respectively. The two surface layers are arranged on the side face, away from the inner layer, of the waterproof layer. The surface layer is formed by interweaving warp yarns and weft yarns; the warp yarns and the weft yarns comprise nylon filaments and fluorescent polyester filaments; the waterproof layer is a waterproof breathable film layer; the inner layer is formed by interweaving warp yarns and weft yarns; the warp yarns and the weft yarns are electromagnetic shielding composite yarns. The surface layer is formed by weaving nylon and polyester which are excellent in durability and light resistance, so that not only is good durability and light resistance achieved, but also high strength, wear resistance and good chemical stability are achieved. The waterproof layer is arranged in the surface layer, is protected by the surface layer, is not easy to wear and damage, is more durable, and enables the fabric to have a longer waterproof service life.

The present invention is an azo compound represented by formula (1): # imgabs0 # (in formula (1), Ar represents a benzene ring which may have a substituent, a naphthalene ring which may have a substituent, or a heterocyclic ring which may have a substituent, and A represents an arbitrary substituent) or a salt thereof.

The invention discloses a method for preparing a multicolor fluorescent polymer based on Friedel-Crafts polymerization reaction and chemiluminescence application of the multicolor fluorescent polymer. According to the method, through a Friedel-Crafts polymerization reaction, different phenyl compounds are introduced, so that the regulation and control on the fluorescence color are realized. According to the method, a multicolor fluorescent polymer material with conventional fluorescent property and fluorescence red shift aggregation-induced emission (AIE) property can be obtained. As the molecules aggregate, the fluorescence emission wavelength shifts towards a longer wavelength. The synthesis method of the multicolor fluorescent polymer can be carried out under normal temperature and air conditions, and has the advantages of simplicity, high efficiency, suitability for large-scale production and the like. The obtained polymer shows excellent performance in chemiluminescence application, including high luminescence efficiency, adjustable luminescence color and good environmental stability. Due to the characteristics, the method has a relatively wide application prospect in biosensors, chemical analysis instruments and safety detection equipment.

A resin composition and a liquid composition, a pigment compound and an optical material comprising a pigment and a resin represented by Formula 1. In Formula 1, R 1 and R 2 Each independently represents an alkyl group or an aryl group, R 3 , R 4 , R 5 and R 6 Each independently represents a hydrogen atom or a substituent, R 5 With R 6 They can bond to each other to form a 6-membered ring. #imgabs0#

The utility model provides an elastic sunscreen knitted fabric which comprises polyacrylonitrile fiber threads and aerogel fiber threads, the polyacrylonitrile fiber threads intersect in the warp direction and the weft direction to form a tatting layer, the aerogel fiber threads are interwoven and inserted in the tatting layer in the inclined direction, and the aerogel fiber threads are woven in the tatting layer in the inclined direction. The aerogel fiber lines are wound and knotted with the polyacrylonitrile fiber lines at cross nodes of the polyacrylonitrile fiber lines, and then the penetrating direction is changed. According to the elastic sun-proof knitted fabric, excellent elastic performance and sun-proof performance of the elastic sun-proof knitted fabric are guaranteed, meanwhile, compression on the body can be reduced, and the wearing comfort is improved.

The present invention provides a radiation-proof suit and a suit processing method thereof, wherein the radiation-proof suit comprises an inner layer, an interlayer and an outer layer, wherein a pocket is arranged on the inner layer, and the pocket is woven with radiation-proof composite fibers, wherein the radiation-proof composite fibers comprise metal fibers and meta-aramid fibers twisted together, and the inner layer, the interlayer and the outer layer are all treated with an anti-wrinkle finishing agent. The present invention adopts composite yarns twisted together with metal fibers and silver fibers, and the pockets woven in warp and weft have good comprehensive properties such as good radiation protection, washing resistance, antibacterial and antibacterial, light, thin, soft, and breathable, thereby reducing the probability of the wearer being damaged by mobile phone radiation.

The utility model provides an easy-to-fold rain cover for a bicycle, which relates to the field of bicycle accessories, comprises a base arranged on a rear seat of the bicycle, and is characterized in that a rotating shaft is fixedly connected onto the base, a supporting frame and a fixing frame are rotatably connected onto the rotating shaft, the fixing frame is connected with the base, and the fixing frame is connected with the base. A rainproof cover body is fixedly connected to the supporting frame and the fixing frame, and when the supporting frame is completely opened, the rainproof cover body forms a rainproof space on a saddle of the bicycle. According to the easy-to-fold rain cover for the bicycle, after the bicycle is parked, the supporting frame is grabbed and turned out from the interior of the base, and the supporting frame drives the rain cover body to be unfolded, so that the rain cover body completely shields the cushion, a rain-proof space is formed on the cushion, and at the moment, the bicycle can leave at ease; the seat cushion can be effectively prevented from being wetted in rainy days, and is more convenient to use.

This application relates to the field of dye synthesis technology, and provides a dye, its preparation method, and a black digital inkjet printing ink. The general molecular structure formula I of the dye is as follows: wherein R1, R2, R3, R4, and R5 in the general molecular structure formula are independently selected from alkali metal ions, NH[(CH2)], etc. n OH]3 + Any one of the following, where n is 1 to 5. The dye provided in this application has the general molecular structure shown in Formula I, making it a black direct dye. Because it contains carbon-carbon double bonds (C=C) and nitro groups (NO2), the carbon-carbon double bonds can absorb ultraviolet light, giving the dye good lightfastness, and the nitro groups can give the dye good antioxidant properties. Therefore, the dye of this application has both excellent lightfastness and antioxidant properties, and good weather resistance.

The preparation method comprises the following steps: stirring and mixing low-density polyethylene, polyethylene wax and magnesium stearate at a high speed, and heating to a constant temperature until the polyethylene wax is completely molten; adding high-stability pigment particles, and stirring until the surface of the low-density polyethylene is coated with a large number of high-stability pigment particles to obtain a mixture; and heating a twin-screw extruder to 130 DEG C, adding the mixture, extruding and granulating to obtain the color master batch which is not easy to fade and used for the lawn. According to the preparation method, pigment-loaded modified porous materials with different apertures are prepared into fibers by adopting an electrostatic spinning method, then an interphase is formed among electrostatic spinning membrane fibers by utilizing electrostatic interaction between positively charged chitosan and negatively charged attapulgite nanorods, each fiber is coated with the interphase, and a nano coating is formed; and a strong and compact interface is formed, so that the stability of the pigment is protected, the light resistance and the aging resistance stability are improved, and meanwhile, the compatibility and the dispersity between the pigment and matrix resin can also be improved.

The present invention relates to an aramid dope-dyed yarn and a manufacturing method therefor, the aramid dope-dyed yarn being manufactured by blend spinning a mixture dope comprising: a master batch dope comprising a pigment and a meta-aramid dope, which is obtained by polymerizing m-phenylene diamine (MPD) and isophthaloyl chloride (IPC); and the meta-aramid dope, and provided is an aramid dope-dyed yarn having less color deviation and excellent light fastness due to uniform pigment dispersion.

The three-proofing fabric sequentially comprises a fabric inner layer, a protective layer, a waterproof breathable film layer and a fabric outer layer, and the protective layer comprises a silicon dioxide aerogel layer, refractory fiber layers attached to the two sides of the silicon dioxide aerogel layer in a mold pressing mode and a cotton bamboo fiber layer arranged on the side, away from the silicon dioxide aerogel layer, of the refractory fiber layers. The chenille fabric is adopted in the fabric inner layer, the suede surface is full, and the hand feeling is soft; the protective layer has the effects of heat insulation, flame retardance, bacteriostasis and ventilation; the fabric outer layer is formed by weaving the chitin fiber yarns and the polyester fiber yarns, and is antibacterial and wear-resistant. The three-proofing fabric has good waterproof, heat insulation and air permeability, can effectively resist bacteria, and is wide in application range.