39results about How to "Solve easy discoloration" patented technology

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

The invention mainly aims at providing a preparation process of silver / chitosan composite antimicrobial agents. In order to realize the goal of the invention, the preparation process has the technical scheme that the preparation process of silver / chitosan composite antimicrobial agents comprises the steps that: 1, carboxymethyl chitosan is prepared from chloroacetic acid, sodium hydroxide and chitosan through reaction; and 2, the carboxymethyl chitosan prepared through the reaction is compounded with silver ions to obtain the silver / chitosan composite antimicrobial agents. In order to improve the antimicrobial performance of the chitosan, the chitosan is compounded with the silver according to the processing method, the problem that the color of the silver is easy to change can be solved, and simultaneously, the antimicrobial performance of the chitosan can also be greatly improved.

Disclosed is ketorolac tromethamine, which is a pyrrole acid derivative developed by the Syntex company in the U.S. The invention can effectively inhibit prostaglandin (PG) from synthesizing with functions of analgesia, anti-inflammation, antipyresis and inhibiting the platelets from aggregating. The invention provides a preparation method of ketorolac tromethamine injection, which well improves the stability and the clarity of the preparation with stable process.

The invention discloses a prescription of a ketorolac tromethamine injection and a preparation method. The injection provided by the invention can not only effectively solve the problem that the existing ketorolac tromethamine injection containing ethanol causes irritation while being injected and improve the safety of the drugs and the compliance of the drugs, but also completely avoid the white points caused by the traditional technology after sterilization treatment, and thus the ketorolac tromethamine injection is good in stability, high in safety, reliable in quality and significant in efficacy.

The invention relates the antibiotic glass reinforced plastic door and window section bar and its processing method. The section bar comprises the basis materials which is unsaturated polyester resin and inorganic antibacterial agent which is hydroxyapatite antibacterial agent. The method comprises the following steps: 1 preparing the hydroxyapatite antibacterial agent; 2 homogeneous dispersing the hydroxyapatite antibacterial agent into unsaturated polyester resin; 3 drawing the said unsaturated polyester resin, fiber glass and accessory material to shape and getting the antibiotic glass reinforced plastic door and window section bar. The said antibiotic glass reinforced plastic door and window possesses the advantages of good weatherability, strong antibiosis, long antibiosis life, and simple production.

The invention discloses a blue red phosphorus flame retardance reinforced polyamide material. The polyamide material contains the following raw compositions: polyamide resin, a reinforcing component,red phosphorus flame retardant, flame retardant synergist, pigment, a functional auxiliary agent and a disacidifying agent, wherein the functional auxiliary agent comprises components A and B; the component A is selected from a mixture of N, N-bis(2, 2, 6, 6- tetramethyl-4-piperidinyl)-1,3-phthalamide and a copper halide compound; the component B is selected from at least one of a cerium-containing compound, a zinc-containing compound and an aluminum-containing compound; and the pigment includes pigment blue, pigment black, pigment green, pigment yellow and pigment white. The blue red phosphorus flame retardance reinforced polyamide material provided by the invention has the advantages that the material has excellent moist heat resistance, laser marking property, clear laser marking effectand high contrast; the color stability can be well maintained; and excellent mechanical property and flame retardant property are maintained at the same time.

The invention discloses a method for compressing and compacting wood materials in vacuum, and belongs to the field of wood material production and preparation. According to the method, the wood materials undergo hot-pressing setting treatment under the vacuum condition, the treated wood materials are large in specific modulus, so that the technical problems that in the case of an existing wood material compression and compaction technology, the hot-pressing setting time is long, the manufacturing efficiency is low, the color change and the size are not stable are solved, the compression and compaction manufacturing of the wood materials is performed under the vacuum condition, so that the gluing strength of the wood gluing materials is also improved.

The invention provides a phosphorus-based flame-retardant glass fiber reinforced PBT composite material, which comprises, by weight, 35-60% of PBT, 8-26% of glass fiber, 3-8% of a filling material, 6-12% of a phosphorus-based flame retardant, 3-8% of a flame-retardant synergist, 2-6% of aluminum hydroxide, 2-5% of diethylene glycol di m-methyl benzoate, 0.5-2% of a coupling agent, 0.5-1% of an inorganic antibacterial agent, 0.6-1.2% of an antioxidant, and 1-3% of other processing aids, wherein the intrinsic viscosity of the PBT is 0.7-1.2 dl / g, and the glass fiber is an alkali-free glass fiberwith a monofilament diameter of 7-18 [mu]m. According to the present invention, the prepared PBT composite material has advantages of good flame retarding effect, excellent mechanical property, excellent electrical property, excellent antibacterial property and excellent processing property.

The invention discloses a method for compressing and compacting wood materials, and belongs to the field of wood material production and preparation. According to the method for compressing and compacting the wood materials, the wood materials are subjected to hot-pressing and setting treatment under the vacuum condition, and the processed wood materials are large in specific modulus, and the technical problems that, in an existing wood material compressing and compacting technology, the hot-pressing and setting time of is long, manufacturing efficiency is low, the color changes, and the sizeis not stable are solved; and the wood materials are subjected to compressing and compacting manufacture under the vacuum condition, so that bonding strength of the wood materials laminated with glueis also improved.

The invention discloses compound allantoin vitamin B6-E and ammoniation ethyl sulfate eye drops and a preparation method thereof. The compound allantoin vitamin B6-E and ammoniation ethyl sulfate eye drops are proportionally prepared from the main components of chondroitin sulfate, allantoin, taurine, vitamin B6 and vitamin E and the auxiliary materials of edetate disodium, boric acid, borax, polysorbate-80, benzalkonium chloride, natural borneol, ethanol and water for injection, and a preparation method is also provided. After the components of the compound allantoin vitamin B6-E and ammoniation ethyl sulfate eye drops and the eye drops which are prepared from the preparation method are applied, the medicine compatibility problem of five main components is solved, so the liquid medicine is clear, the contents of all the main medicines are stable, the aseptic and visible foreign matter inspection qualification rate of a product is ensured to be high, the cost is low, and the compound allantoin vitamin B6-E and ammoniation ethyl sulfate eye drops are worth being popularized in the industrial production field.

The present invention discloses a processing method of Zijuan flower tea, belongs to the technical field of tea leaf processing, and more particularly relates to a processing technology of commonly processing Zijuan tea and flower raw materials and preserving color and luster. Firstly, processes from the Zijuan tea raw materials to baking / sun-drying of the tea are conducted, a strip tidying process is added between kneading and drying, the baking is subjected to a two-stage temperature controlling and time controlling treatment, and the sun-drying uses a sunlight to dry the tea into a water content of 13-15 wt%; then the Zijuan baking / sun-drying tea is mixed with fresh magnolia flowers and fresh jasmine flowers, the mixture is subjected to a second temperature controlling and time controlling scenting processing; the scented materials are subjected to the temperature controlling and water controlling, and the treated materials are dried into semi-finished products; and the semi-finished products are processed into the corresponding Zijuan flower tea finished products. The technology is simple and easy to realize an industrial operation, and can solve the problem that the common processing of the Zijuan tea and flower raw materials is easy for color changing, and the prepared finished products are relatively much in anthocyanin contents and stable in soup color after a soaking.

The present invention provides recipe and production process of olive powder. The recipe includes olive, sodium ascorbate, sodium hexametaphosphate, beta-cyclodextrin, maltodextrin, gelatin, sodium carboxymethyl cellulose, cane sugar, sodium stearate, soft phospholipid, Acesulfame potassium and glycyrrhizin. The production process includes the steps of sorting olive, washing, scalding, cooling, stoning, crushing, freezing, defrosting, squeezing, filtering, concentrating, concentrating, mixing with other materials, drying and sterilizing. The produce process has well preservation of the beneficial components in fresh olive, and the olive powder has wide application foreground in health food and medicine.

The invention discloses a wear-resistant scratch-resistant antibacterial BOPET film. The film is composed of a surface layer A, a core layer B and a bottom layer C. A thickness ratio of the surface layer A to the core layer B to the bottom layer C is (2-5): (20-40): (2-5); the surface layer A and the bottom layer C are located on the two sides of the core layer B; the surface layer A is an antibacterial layer; the core layer B is a filling layer; and the bottom layer C is wear-resistant scratch-resistant layer; The surface layer A comprises the following raw materials: PET slices, a compositeantibacterial agent, a catalyst and a stabilizer. The core layer B is a PCTG copolyester slices. The bottom layer C comprises the following raw materials: PET slices, a toughening agent, a KH550 silane coupling agent, a functional additive, a catalyst and a stabilizer. The invention also discloses a preparation method of the wear-resistant scratch-resistant antibacterial BOPET film. The BOPET filmprepared by the invention has the advantages of wear resistance, scratch resistance, lasting antibacterial property; and the method is simple in production process, wide in raw material sources and low in production cost.

The invention discloses a method for compressing and densifying wood materials, which belongs to the field of wood material production and preparation. In the present invention, the wood is subjected to hot-pressing and setting treatment under vacuum conditions, and the treated wood has a large specific modulus, which solves the problems of long hot-pressing and setting time, low manufacturing efficiency, discoloration and dimensional instability in the existing wood compression and compaction technology. Technical problem; the compression and densification of wood materials under vacuum conditions also improves the bonding strength of wood glued materials.

The invention belongs to the technical field of medicine and particularly relates to a special omeprazole solvent for injection as well as a preparation method thereof. The special omeprazole solventfor injection comprises the following raw materials: polyethylene glycol 400, citric acid, sodium hydroxide and water for injection. The special omeprazole solvent for injection solves the problem that the omeprazole solution prepared by the conventional method is low in stability, is liable to change color and is liable to degrade. By the preparation method, the industrialized production requirement is met, and large-scale industrialized production can be realized.

The invention relates to the field of daily necessities, and provides a silicone oil-free anti-dandruff shampoo composition and a preparation method thereof. The invention relates to a silicone oil-free anti-dandruff shampoo composition which comprises the following components in parts by weight: 8-40 parts of a surfactant and 5.2-25 parts of a functional component, 5.2-25 parts of the functional components comprise 0.2-5 parts of a pseudoalteromonas fermentation product, 1-10 parts of a peony seed oil micro-emulsion and 1-10 parts of an artemisia apiacea extract micro-emulsion, the peony seed oil content in the peony seed oil micro-emulsion is 5-20 wt%, and the artemisia apiacea extract content in the artemisia apiacea extract micro-emulsion is 5-20 wt%. The preparation method comprises the step of uniformly mixing the components. According to the shampoo composition, the defects of a traditional anti-dandruff agent are overcome through the pseudoalteromonas fermentation product extract, the natural peony seed oil and the sweet wormwood herb extract serve as natural substitutes of silicone oil, the shampoo composition is environmentally friendly, accumulation of the silicone oil on hair is avoided, meanwhile, the anti-oxidation, antibacterial and anti-inflammatory effects are achieved, the health of the whole scalp is maintained, and the shampoo composition is safe and reliable. And the dandruff condition of a user is obviously improved within the 28-day period of the test.

The invention discloses an antibacterial door and window profile and relates to the technical field of doors and windows. The antibacterial door and window profile is prepared from, by weight, 30-50 parts of hard polyvinyl chloride resin, 15-45 parts of unsaturated polyester resin, 2-3 parts of hydroxyapatite, 5-8 parts of a silver halide solution, 1-2 parts of an ultraviolet light absorber, 3-7 parts of a stabilizer, 2-4 parts of a modifying agent and 1-5 parts of a fire retardant. The antibacterial door and window profile is high in antibacterial effectiveness, simple in production process, low in production cost, and suitable for promotion.

The invention relates to the silver discoloration prevention field, in particular to a novel silver coating discoloration preventing agent for the cyanide silver plating process. The content of components of the novel silver coating discoloration preventing agent for the cyanide silver plating process is 15 to 30 percent of Vaseline and 85 to 70 percent of KC-E103, wherein all percentages are weight percentages. With the technical solution, the problem that silver coatings are easy to discolor in the prior cyanide silver plating process is solved , and production cost is remarkably reduced.

The invention relates to an anti-tarnishing agent for cyanide-free silver plating, which comprises the following components by mass concentration: 0.1-2g / L of a sulfuric acid compound, 10-25g / L of a sulfanilamide compound and water as a solvent. The sulfuric acid compound is one or more of castor oil sodium sulfate, lauryl sodium sulfate or ammonium thiosulfate. The sulfanilamide compound is one or more of 2-p-aminobenzene sulfonamide-5-methoxypyrimidine, sulfametoxypyrimidine, sulfaacetic acid sodium or sulfadiazol. According to the anti-tarnishing agent for the silver plating provided by the invention, the anti-tarnishing performance of silver plating parts is improved, the anti-corrosion performance of the silver plating parts is particularly improved remarkably, the storage cost of the silver plating parts is reduced, and the anti-tarnishing agent for the silver plating can be widely applied to the technical field of silver plating.

The invention provides a method for preparing colorless isopropanol from an organic cleaning waste liquid of an electronic factory. Catechol is removed from an isopropanol fraction obtained by distilling the waste liquid in an aeration heating mode, and then potassium fluoride is added to obtain an isopropanol oil phase with low water content, so that the organic waste liquid is prevented from being directly treated in an incineration mode, a rectification dehydration mode with high energy consumption and high equipment requirements is not needed, and the resource utilization rate is increased; and the prepared isopropanol is a colorless product, is not easy to discolor after being placed for a long time, and has high product value.

The invention discloses a processing technology of selenium-rich potato slices. The processing technology of the selenium-rich potato slices comprises the following steps: selecting of raw materials: preliminarily screening potatoes to be processed, conveying the potatoes through a belt conveyor, weighing the raw materials, selecting the raw materials at the same time, and removing potato blocks with mildew spots and rotten block parts in the raw materials; screening and cleaning: removing sandy soil and impurities from the potatoes through a dry impurity removing machine, and then conveying the potatoes into a drum-type cleaning machine to be cleaned; soaking and peeling: putting the soaked potatoes with smooth and clean surfaces into a steam peeling machine in batches, and then washing the outer skins with running water; slicing treatment: sending the peeled potatoes into a slicing machine to be sliced in sequence; antioxidant protection: soaking the sliced potato chips in a browning inhibitor test solution; and packaging and storing. According to the invention, the raw materials are selected and screened for many times, the quality of the raw materials is improved, the raw materials are subjected to steam treatment and peeling more completely, waste of the raw materials is reduced, potato chips are not discolored after treatment, and the quality of finished products is improved.

The invention provides a method for preparing alkyd resin for dyed veneers. The method comprises the following steps: step 1, mixing a reactive ultraviolet light absorber, a first batch of polyol monomers and an acid component to initiate esterification co-polymerization reaction; and step 2, adding a second batch of polyol monomers into the reaction liquid obtained after the step 1 is completed,and initiating esterification co-polymerization reaction; wherein the reactive ultraviolet light absorber comprises at least two esterification reaction active groups, and each esterification reactionactive group is independently selected from hydroxyl or carboxyl; the first batch of polyol monomers and the second batch of polyol monomers independently comprise at least two of dihydric alcohol monomers, trihydric alcohol monomers and tetrahydric alcohol monomers; and the acid monomer includes a polybasic acid monomer. According to the invention, the reactive ultraviolet absorber, the first batch of polyol monomers and the second batch of polyol monomers are jointly used as monomers for esterification polymerization reaction, so that the prepared alkyd resin has excellent permeability, yellowing resistance and discoloration resistance.

The invention relates to the preparation of an antibacterial agent and provides a method for preparing a novel titanium dioxide silver-doped antibacterial agent. The method comprises the following steps of: (1) adding a complexing agent into a silver nitrate ethanol solution, fully and uniformly stirring under the shading condition and carrying out reflux reaction under the water bath condition to obtain chelate silver-contained sol; (2) dropwise adding a mixed solution of tetrabutyl titanate and anhydrous ethanol into an aqueous solution with the pH of 1-2.5 under the stirring condition, refluxing under the water bath condition and finally adjusting the pH to 3-6 to obtain titanium dioxide grain sol; (3) dropwise adding the chelate silver-contained sol into the titanium dioxide grain solunder the stirring condition, refluxing and ageing under the water bath condition and then obtaining the titanium dioxide silver-doped antibacterial agent. The invention agglomerate silver ions on the surface of a titanium dioxide grain by adopting a wet-chemical method and utilizing a chelate technology and a sol-gel hydrolytic polymerization control technology, realizes the uniform complexing of silver and titanium dioxide at a nano size and endows materials with favorable antibacterial capability.

The application discloses a weather-resistant resin composition and its application. The weather-resistant resin composition does not contain phenolic hydroxyl groups, which solves the problem of easy discoloration and aging of the existing weather-resistant resins due to the phenolic hydroxyl groups. The weather-resistant resin composition of the present application is used to prepare copper-clad laminates. Through performance tests, it can be known that it has excellent heat dissipation, heat resistance, adhesion and insulation reliability, and its thermal conductivity is up to 3.03W / m·K. The peel strength is 1.58N / mm, the frying plate>30min, the breakdown voltage after A state and D‑48 / 50 boiling treatment is>7.0kV, and the thermal conductivity, peel strength, breakdown voltage, thermal stress, Tg, Td and other properties have no obvious attenuation, and have excellent weather resistance. Therefore, it meets the weather resistance requirements for preparing LED plant lighting substrates, and is suitable for preparing prepregs, laminates, copper-clad laminates or printed circuit boards for LED plant lighting.

The present invention discloses a weather-resistant resin composition and applications thereof, wherein the weather-resistant resin composition does not contain a phenolic hydroxyl group so as to solve the problems of easy discoloration and aging caused by the phenolic hydroxyl group contained in the existing weather-resistant resin. According to the present invention, with the application of theweather-resistant resin composition to prepare the copper clad laminate, the performance test results show that the prepared copper clad laminate has excellent heat dissipation, excellent heat resistance, excellent adhesion and insulation reliability, the thermal conductivity is up to 3.03 W / m.K, the peeling strength is 1.58 N / mm, the plate cracking time is more than 30 min, the breakdown voltageafter A-state and D-48 / 50 water boiling treatment is more than 7.0 kV, the performances such as thermal conductivity, peeling strength, breakdown voltage, thermal stress, Tg, Td and the like after blue light irradiation are not significantly attenuated, and the copper clad laminate has excellent weather resistance, such that the obtained product can meet the weather-resistant requirements of LED plant lighting lamps, and is suitable for the preparation of the prepreg, the laminated plate, the copper clad laminates or the printing circuit boards in LED plant lighting.

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

The invention discloses a fresh-keeping method for fresh-cut fruits and vegetables through honey and plasma combined treatment, and belongs to the technical field of fresh-cut fruit and vegetable storage and fresh-keeping. Soaking the fresh-cut fruits and vegetables in the honey solution, and after soaking is finished, taking out and draining off the fresh-cut fruits and vegetables; the drained fresh-cut fruits and vegetables are exposed to plasma for treatment; and packaging the fresh-cut fruits and vegetables subjected to plasma treatment, and refrigerating and storing. The fresh-keeping method provided by the invention effectively solves the problem that the fresh-cut fruits and vegetables are easy to discolor, prolongs the shelf life of the fresh-cut fruits and vegetables, retains the specific nutritional value of the fruits and vegetables, and is green, safe, simple and easy to implement.

The present invention provides recipe and production process of olive powder. The recipe includes olive, sodium ascorbate, sodium hexametaphosphate, beta-cyclodextrin, maltodextrin, gelatin, sodium carboxymethyl cellulose, cane sugar, sodium stearate, soft phospholipid, Acesulfame potassium and glycyrrhizin. The production process includes the steps of sorting olive, washing, scalding, cooling, stoning, crushing, freezing, defrosting, squeezing, filtering, concentrating, concentrating, mixing with other materials, drying and sterilizing. The produce process has well preservation of the beneficial components in fresh olive, and the olive powder has wide application foreground in health food and medicine.