88results about How to "Improve brightening effect" patented technology

PCT No. PCT/EP97/01865 Sec. 371 Date Dec. 30, 1998 Sec. 102(e) Date Dec. 30, 1998 PCT Filed Apr. 14, 1997 PCT Pub. No. WO97/39179 PCT Pub. Date Oct. 23, 1997A method of bleaching lignocellulosic fibers is disclosed which comprises the step of treating the lignocellulosic fibers with a bleaching composition comprising at least one oxidizing bleaching agent in aqueous solution in the presence of at least one additive which activates delignification or bleaching wherein the activating additive is a phenanthroline selected from the group consisting of 2,9-dimethyl-1,10-phenanthroline, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline-disulfonic acid-disodium salt-hydrate, and 3,4,7,8-tetramethyl-1,10-phenanthroline.

The invention discloses a quantum dot/epoxy resin particle, a preparation method thereof, a quantum dot optical film and a backlight module. The preparation method of the quantum dot/epoxy resin particle comprises the following steps: pre-dispersing and packaging quantum dots in an epoxy resin block, and grinding the obtained epoxy resin block. The structure of the quantum dot/epoxy resin particle effectively reduces the quantum dot agglomeration and the possibility of interference and destroy caused by agglomeration, and allows the quantum dots to be uniformly dispersed in the obtained optical film, so the quantum dot utilization rate is obviously improved. The phototransformation efficiency and the brightening effect of the backlight module made by using the quantum dot optical film are obviously improved. The backlight module can be applied to a display to realize pure color, high saturation and high color gamut of the R/G/B color sub-pixel units corresponding to color filters and improve the luminescence efficiency.

The invention relates to the technical field of optical barriers, in particular to an optical diffusion barrier and a preparation method thereof, and a liquid crystal display device. In order to solve the problem that the traditional optical barrier can not be used for light intensifying and light diffusion at the same time, the invention provides an optical diffusion barrier with excellent comprehensive properties and a preparation method of the optical diffusion barrier, and a liquid crystal display device. The optical diffusion barrier comprises a transparent substrate, wherein an upper diffusion coating is arranged on the upper surface of the transparent substrate, a lower diffusion coating is arranged on the lower surface of the transparent substrate, the upper diffusion coating comprises an upper diffusion rubber layer and upper diffusion particles, and the lower diffusion coating comprises a lower diffusion rubber coating and lower diffusion particles. The optical diffusion barrier provided by the invention has better diffusion property and brightening property, and better shielding property, light transmitting property and scratch resistance. The preparation method has a simple process, and is easy to operate. The liquid crystal display device using the diffusion barrier has better brightness and picture display effect.

The invention relates to an efficient mirror plane flatting agent for powder paint, an preparation method and an application. The efficient mirror plane flatting agent is prepared from, by mass, 600-800 parts of acrylic acid butyl ester, 100-360 parts of lauryl methacrylate, 20-50 parts of hydroxyl acrylate monomers, 20-50 parts of styrene, 10-25 parts of azodiisobutyronitrile and 900-1500 parts of methylbenzene. The number-average molecular weight Mn of the prepared flatting agent is 6000-7000, the molecular weight distribution PDI is 1.5-2.8, and the flatting agent can be prepared into a solid state through gas-phase silicon oxide adsorption in the later period. The flatting agent is mainly applied to the powder paint, hydroxyl polar groups and benzene rings are introduced in the flatting agent, therefore, the compatibility of the flatting agent and resin in the powder paint and the wettability of the flatting agent for substrates can be effectively facilitated, and then a coating can achieve the excellent flatting, shrinkage cavity resisting and brightening effects; in addition, the Mn of the flatting agent is 6000-7000, the PDI is 1.5-2.8, and therefore the flatting, shrinkage cavity resisting and brightening effects of the coating can be further optimized; furthermore, the polar group hydroxyl is introduced, and therefore the adhesive force of the coating on the metal substrates can be effectively improved.

The invention relates to a film for optics, and especially relates to a composite brightness enhancement film and a preparation method thereof to solve the problem that a conventional brightness enhancement film can only gather light in a single direction. The composite brightness enhancement film comprises a first brightness enhancement layer and a second brightness enhancement layer. The first brightness enhancement layer comprises a first substrate, a first microstructure layer and a first back coating layer, wherein the first microstructure layer is arranged on the first substrate, and the first back coating layer is arranged under the first substrate. The second brightness enhancement layer comprises a second substrate, a second microstructure layer and a second back coating layer, wherein the second microstructure layer is arranged on the second substrate, and the second back coating layer is arranged under the second substrate. The first back coating layer is adhered to the second microstructure layer, so that the first brightness enhancement layer and the second brightness enhancement layer are compounded together. The composite brightness enhancement film exhibits a good brightness enhancement effect and a good shielding effect, and exhibits great peeling intensity and rigidness.

The invention provides an optical film. The optical film comprises a first optical film and a second optical film, wherein the first optical film comprises a substrate layer, a prism layer and an adhesive layer. The optical film is characterized in that the prism layer comprises multiple prism structures, at least one of the prism structures has a first peak ridge and a second peak ridge, the first peak ridge and the second peak ridge form a groove, the adhesive layer is filled into the groove, and the first optical film is bonded with the second optical film through the adhesive layer. According to the optical film, the double-peak structure is arranged on the prism structure to form the groove which is filled with the adhesive layer, a tip structure of the prism structure of the first optical film can be prevented from being sacrificed, and brightness of the optical film is improved.

The invention relates to the field of filler modification and discloses a sericite composite used in transparent plastic master batch and a preparation method. The method comprises the preparation steps as follows: (1) performing alkaline washing, acid washing and thorough clear water washing on sericite to obtain pretreated sericite; (2) grinding the pretreated sericite and adding the ground sericite to water to produce sericite slurry; (3) adding an oxalic acid complexing agent and ammonia water to a zinc sulfate solution to prepare a zinc oxalate complex solution; (4) performing heating andstirring; (5) performing filtration, washing drying and calcinations to prepare the sericite composite coated with zinc oxide on the surface. Compared with common sericite, the prepared sericite composite has higher transparency when added to plastic, the anti-ultraviolet property is greatly improved, raw materials are easy to obtain, the composite is pollution-free and lower in cost, the preparation process is simple, safe and reliable and easy to implement and control, the product quality is stable, and the composite is suitable for large-scale popularization and application.

The invention relates to a long-acting leather brightening agent which is prepared from the following raw materials in parts by weight: 3-8 parts of anionic surfactant, 2-4 parts of lanolin, 1-5 parts of essence, 6-10 parts of ethyl acetate, 2-9 parts of vaseline, 5-9 parts of organic silicone oil, 3-8 parts of titanium dioxide, 2-6 parts of turpentine, 3-10 parts of castor oil epoxyethane, 3-7 parts of olive oil, 4-9 parts of solubilizer, 4-8 parts of lecithin, 1-5 parts of snake oil, 2-6 parts of ethanol, 9-17 parts of modified silicon powder and 25 parts of deionized water. The long-acting leather brightening agent has favorable brightening effect, can effectively keep the elasticity of leather and prolong the service life of the leather, and is widely used.

The invention relates to a drying cylinder stripping agent for papermaking and a preparation method thereof. The drying cylinder stripping agent comprises, by weight, 15-80 parts of alkane oil, 20-60parts of an oiliness agent, 5-50 parts of an emulsifier and 2-15 parts of an activator, wherein the oiliness agent is one or more of tall oil fatty acid, tall oil, erucic acid and hydroxyethyl imidazoline oleate, and the emulsifier is one or more of triethanolamine oleate soap, Tween 80, span 80, polyethylene glycol dioleate, polyethylene glycol monooleate and alkylphenol ethoxylates. The drying cylinder stripping agent can thoroughly solve the problem of cylinder sticking in papermaking, keeps a system clean, allows paper sheets to be free of oil spots, and achieves good stripping, lubricating and brightening effects.

The invention provides a side-light back light module including a micro structure optical board, a reflecting board and a light emitting device. The micro structure optical board includes a light outgoing face and a light incoming face disposed oppositely to the light outgoing face. The reflecting board includes at least one reflecting face. An air layer is defined between the reflecting board and the micro structure optical board. The light emitting device is disposed between the micro structure optical board and the reflecting board and is disposed on one or side of the air layer. The light emitting device can generate light beams and the light beams can be projected by the air layer to the reflecting face of the reflecting board. In the invention, by utilizing the different of the refractive indexes of the air layer and the micro structure optical board, a primary light collecting effect is generated. Thus, the optical design of the back light module can be simplified and the forward luminance of the back light module can be improved.

The embodiments of the invention provide a composite prismatic lens, a backlight module and a display terminal. The composite prismatic lens comprises a first lens and a second lens. The first lens comprises a first substrate layer and a plurality of first triangle prisms symmetrically arranged on the first substrate layer; the second lens comprises a second substrate layer and a plurality of second triangle prisms symmetrically arranged on the second substrate layer. The first surface is connected with the upper surface of the first substrate layer; the second surface is vertical to the upper surface of the first substrate; the third surface presents a plane or an upwardly protruding arc face. The heights of the plurality of second surfaces are shortened along the central direction of the first substrate layer; the fourth surface is connected with the upper surface of the second substrate layer; the fifth surface is vertical to the upper surface of the second substrate layer; the sixth surface presents a plane or an upwardly protruding arc face. The heights of the plurality of the fifth surfaces are shortened along the central direction of the second substrate layer. Compared with the prior art, the composite prismatic lens of the embodiments has a better brightening effect and can reduce the power loss of the display terminal.

A backlight angle control method based on refraction index matching is characterized in that a medium layer which meets the requirement for the needed refractive index is arranged in a prism gap of a prism bright enhancement film of an optical module in a filling mode, light which is emergent out through the prism bright enhancement film passes through the medium layer and then enters air media so that the backlight light-out angle can be controlled, the brightness distortion of backlight is reduced, and meanwhile output of superfluous light at the large angle of an LCD is reduced. According to the backlight angle control method based on refraction index matching, the brightness distortion of the backlight can be reduced, the out-light angle is effectively controlled, and superfluous light output at the large angle of the LCD is reduced.

The invention discloses bright white shoe polish. The shoe polish is characterized by comprising the following components in parts by weight: 1-5 parts of wool grease, 1-4 parts of turpentine oil, 10-20 parts of lithopone, 1-4 parts of bleached shellac, 0.2-0.3 part of bee wax, 20-25 parts of water, 1-4 parts of glycerol and 20-25 parts of alcohol. The bright white shoe polish provided by the invention has the beneficial effects that the bright white shoe polish has good brightening effect and strong water resistance; the turpentine oil and the bee wax in the formula are insoluble in water and can effectively prevent rainwater from wetting shoe uppers; and the wool grease adopted in the formula is light yellow or brown ointment, has viscosity and smoothness, and smoothens and brightens leather shoes.

The invention provides a wettable cross-linked solidified liquid car polishing protection film coating agent as well as a preparation method and a construction method thereof. The wettable cross-linked solidified liquid car polishing protection film coating agent comprises the following components by weight percent: 50-60% of fluorine modified hydroxy organic silicon resin, 6-10% of 1,6-hexamethylene diisocyanate, 3-5% of 3-trimethoxy silane propyl isocyanate, 20-31% of fatty hydrocarbon solvent and 5-10% of propylene glycol ethyl ether acetate. The film coating agent is firmly bonded with the car paint surface to form a layer of bright, transparent and high-hardness film coating, so that the integral performance of the conventional car polishing product is improved, that is, the self-cleaning property, the hydrophobic property, the anti-static property, the scratch resistance and the ageing resistance of the coated film are improved, so as to keep the car surface bright in color.

The invention discloses a highlight traceless spraying-free ABS material which comprises ABS resin, PMMA resin, glass beads, potassium hexatitanate, an antioxidant, a lubricant, a wear-resistant agent and a flexibilizer. The ABS resin and the PMMA resin interact with each other, so that the hardness, glossiness and surface flatness of the ABS material are improved, and the glass beads have a good brightening effect. The prepared highlight traceless spraying-free ABS material has good oxidation resistance, mechanical properties, glossiness and wear resistance, and is easy to process, low in cost, simple in processing procedure and easy to operate.

The invention discloses an indoor space light intensifying device which is used for solving the problem of increasing the illuminating area of sunlight in an indoor space, and belongs to the technicalfield of optical application. The device comprises a light diffusing unit, a fixing unit and an automatic control unit, wherein the light diffusing unit adopts a flexible optical material, is designed to be a semi-concave lens structure for obliquely-incident sunlight, and is used for fully diffusing the sunlight after transmission; the fixing unit consists of two rope belts and two rotary shafts; the light diffusing unit is fixed between the two rope belts; two ends of the two rope belts are separately fixed on the upper and lower ends of the two rotary shafts; the automatic control unit comprises two motors, a solar system, a photoelectric sensor and a control circuit; the motors are connected with the rotary shafts of the fixing unit, and are fixed on a window frame; the light diffusing unit is intelligently controlled to be automatically folded and unfolded like a curtain according to the illumination intensity and direction of the sunlight, so that the sunlight is diffused to theindoor space to the greatest extent; and an energy-saving and environment-friendly optimum light illumination environment is provided for living and office spaces. The indoor space light intensifyingdevice is simple in structure, high in feasibility, flexible for assembly, good in light intensifying effect and low in cost.

The invention relates to the field of double-face leather dyeing, in particular to double-face leather dye and a preparation method thereof. The double-face leather dye is mainly prepared from, by weight, 10-90 parts of dye and 2-20 parts of polyacrylamide. The dye is acid dye containing a sulfonic acid group or direct dye containing a sulfonic acid group. According to the double-face leather dye, the dye and the polyacrylamide with the specific matching ratio are selected, and the polyacrylamide is combined with the sulfonic acid group in the dye, so that the water soluble group amount in the dye is reduced, the combination firmness of the dye is increased, and the purpose of color increasing and fixing is achieved. Experiments find that compared with common double-face leather, reaching the same color and luster as the double-face leather, with no copolymer, the using amount of the double-face leather dye can be reduced by at least 15%, the cost is saved, and environmental pollution is reduced. The preparation method of the double-face leather dye is simple and easy to implement, and can achieve industrial production easily.

The invention belongs to the technical field of thin film materials, and particularly relates to a composite film without base coat and a method for preparing the composite film. The composite film comprises surface 1 layers, surface 2 layers and core layers. Materials for the core layers include, by weight, 98.9% of T30S and 1.10% of additives AS2335PP, the surface 1 layers comprise, by weight, 99% of FT810 and 1% of AB6018PPR, and the surface 2 layers comprise, by weight, 93.00% of H030SG and 7.00% of AB6018PP. The composite film and the method have the advantages that processes for preparing the composite film are simple, raw materials for the composite film are environmentally friendly, the base coat is omitted, and the composite film and the method are free of undesirable odor volatilization; the composite film prepared by the aid of the method is excellent in mechanical property, high in abrasion resistance and good in anti-aging performance.

The invention relates to the field of anti-skip products, specifically to a stain-resistant anti-slip agent for a wood floor plate and a preparation method thereof. The stain-resistant anti-slip agentfor the wood floor plate provided by the invention at least comprises the following components by weight: 20 to 50 parts of a polymer emulsion, 1 to 10 parts of an alcohol ether substance, 0.05 to 1part of ammonium polycarboxylate salt, 0.05 to 1 part of polyacrylate, 0.01 to 1 part of organosilicone and 40 to 65 parts of water. The anti-slip agent provided by the invention can effectively reinforce the friction coefficient of the surface of the wood floor plate and exerts good and long-lasting anti-slip effects through a mutual synergistic effect of components like the polymer emulsion, thealcohol ether substance, the ammonium polycarboxylate salt and the polyacrylate. The anti-slip agent provided by the invention has good stain resistance and good brightening effects, toughness and wear resistance. The preparation method for the stain-resistant anti-slip agent provided by the invention is simple, has mild preparation conditions, uses safe and non-toxic raw materials and is worthyof promotion.

The invention discloses a super-leveling mirror powder coating and a preparation method thereof. The powder coating is composed of the following raw materials in parts by weight: 300-600 parts of polyester resin, 25-50 parts of TGIC, 3-6 parts of flatting agent, 3-6 parts of brightener, 1.5-3 parts of benzoin, 0.6-1.2 parts of high-dispersion pigment and 0.6-1.2 parts of sumatriptan. The preparation method comprises the steps: placing the raw materials in parts by weight into a high-speed mixer for sufficient and uniform mixing; then, adding the mixture into a screw extruder for sufficient melting and mixing; then, carrying out extruding, tabletting, smashing and graded screening; and screening particle sizes by using an ultrasonic vibrating screen to obtain the powder coating. The powdercoating obtained by using the preparation method does not contain a solvent, is pollution-free and recoverable, has excellent leveling property and solves the problems of poor surface leveling property and poor mirror surface effect of a coating layer of an existing powder coating.

The invention discloses UV (ultraviolet) glue water, a polyurethane acrylate oligomer and a preparation method of the polyurethane acrylate oligomer. The preparation method comprises the steps of S1, preparing an intermediate product A by virtue of phenyl glycidyl ether and acrylic acid; S2, enabling the intermediate product A to react with isophorone diisocyanate to prepare an intermediate product B; S3, enabling bisphenol A polyoxyethylene ether to react with acrylic acid to prepare an intermediate product C; S4, enabling the intermediate product B to react with the intermediate product C; S5, adding an active diluent, performing reduced pressure distillation, filtering and discharging. A self-healing type polyurethane acrylate oligomer which has relatively high refractive index and relatively low viscosity and does not contain sulfur and halogen elements can be prepared by using the preparation method, wherein the refractive index is more than 1.53; the viscosity is 8000-20000cps at 25 DEG C; moreover, the UV glue water prepared by using the polyurethane acrylate oligomer as a main substance is uniformly coated on a PET (polyethylene terephthalate) base material, and is cured and molded on a molding machine to prepare a prismatic lens; scratches on the prismatic lens can be removed within 1-3 seconds.

The invention discloses an environment-friendly type high-performance bait brightener. The bait brightener is composed of aliphatic dibasic esters, PVC powder, a free radical photoinitiator, ethyl acetate, polyvinyl butyral, liquid paraffin and magnetic water. The product selects aliphatic dibasic esters and PVC powder as the main raw materials, the free radical photoinitiator, ethyl acetate, polyvinyl butyral, liquid paraffin and magnetic water, and an advanced production technology is employed. According to the invention, ethyl acetate and polyvinyl butyral have viscosity increasing effect, so that the brightener can be adhered to the surface of a bait, ethyl acetate has aroma smell, which can easily attract fish shoal for food, aliphatic dibasic esters have the function for dissolving PVC powder, have the efficacies for brightening and increasing the glossiness, so that the environment-friendly type high-performance bait brightener is a degradable environment-friendly type solvent. The product is dipped by the bait brightener and is subjected to heating and drying treatment to present a high shine state, so that the product has the advantages of gorgeous color, verisimilitude, and high fish luring rate, especially can attract the fish at a deep water area.