68results about How to "Meet color requirements" patented technology

The invention discloses high-temperature direct-injection disperse ink as well as a preparation method and an application thereof. The ink is prepared from the following raw materials in parts by weight: 15-60 parts of high-temperature disperse dye, 0.3-20 parts of dispersant, 30-60 parts of organic solvent, 10-50 parts of water, 0.5-10 parts of surfactant, 0.05-0.2 part of preservative and 0.05-0.2 part of defoamer. The preparation method comprises the steps of evenly mixing the high-temperature disperse dye, the dispersant, the organic solvent and water together, adding zirconium beads for grinding and dispersing, and then adding the rest organic solvent, water, the surfactant, the preservative and the defoamer to the mixture, mixing evenly, and filtering to obtain the filtrate. The ink is applied to a novel industrial digital textile printing machine and in particular to a textile printing machine with a precision work 508GS nozzle; the ink can be directly injected for printing by using the printing machine, and therefore, the utilization rate of the ink is increased, the cost is reduced and the environmental pollution is reduced; the ink can be dyed quickly at high temperature without transfer printing, and thus has the advantages of short dyeing time, firm dyeing and the like.

The invention discloses a method for manufacturing a bamboo / wood composite recombined bamboo plate. The production method comprises the following steps of: (1) processing bamboo filaments; (2) dyeing poplar veneers; (3) drying; (4) dipping gum; (5) performing air drying; (6) weighing, and assembling for molding; (7) performing high temperature curing; and (8) balancing and slicing. The plate manufactured by the method saves a large amount of wood; and the recombined bamboo plate comprises the following components in percentage by weight: 15 to 25 percent of phenolic resin, 2 to 10 percent of poplar and 65 to 83 percent of bamboo, and has the density of 1.05 to 1.15 g / cm<3>. Therefore, the manufactured plate has high bamboo content and less poplar. Meanwhile, the plate is made of small-diameter bamboo, branches and other poor bamboo and has low cost; and the manufactured plate also has colorful stripes or speckles.

The invention provides a method for constructing anti-pollution durable colored thin anti-skid road surfaces, comprising the following steps: (1) preparing cementing materials and aggregates, wherein the cementing materials adopt wet-mixing modified epoxy resin adhesives; the aggregates adopt colored pottery particle aggregates; the modified epoxy resin adhesives are used for painting prior to the use of the aggregates; and the thickness of the coating is 0.1 to 0.3mm; (2) treating basements of the constructed road surfaces; (3) scraping and paving modified epoxy resin cementing materials; (4) spreading the colored pottery particle aggregates; and (5) blocking the dead corners of the colored road surfaces with fog seals. The wet-mixing modified epoxy resin adhesives are used for color matching; with the utilization of a small spraying mechanical device, the locations of the dead corners of the non-traffic colored road surfaces are effectively blocked by the fog seal method in advance; and the covering thicknesses of the colored fog seals are 0.1 to 0.3mm. The method for constructing the anti-pollution durable colored thin anti-skid road surfaces can improve the adhesion, the crazing resistance property, and the anti-skid property of the colored road surfaces, and moreover, the colors can be fresh for a long time.

The invention provides a color water-absorbing interleaving paper production process which comprises the steps of wood pulp degradation in size, beating, proportioning, color matching, screening and purifying, charging on a net and forming, vacuum dehydration, squeezing dehydration, drying in a drying cylinder, wrinkling by a scraper, winding and rewinding and slitting and packaging to obtain a finished product, wherein in the step of wood pulp degradation in size, the long-fiber wood pulp with fiber length of 2.5-2.7mm and short-fiber wood pulp with fiber length of 0.7-0.9mm are subjected to fiber degradation in size at a weight ratio of (75-80):(25-20); in the wood pulp degradation in size, 0.3-0.5kg of 12-13% fiber modifying enzyme is added for each ton of paper; in proportioning, 5-8kg of 25-30% biopolymer, 10-15kg of 24-26%wet strength agent and 1-3kg of 10-15% color fixing agent are added for each ton of paper and uniformly stirred; and in the process of charging on a net and forming, a dispersant solution is added, and the dosage of the dispersant is 0.4-0.8kg per ton. The process provided by the invention has the advantages of high wet tensile strength and good absorbability and no fading.

The invention provides a display device and a color adjusting method thereof. The display device comprises a gamma memory, a video signal processing board and a display module group. The gamma memory is used for storing parameter data of a gamma curve of RGB signals provided by an external system and a program of the gamma curve for compiling the RGB signals. The video signal processing board is used for receiving the RGB signals input by the external, and the RGB signals input by the external is converted to TTL signals after transmission processing through the video signal processing board. The display module group is used for receiving the parameter data of the gamma curve of the RGB signals which are stored in advance in the gamma memory and the TTL signals provided by the video signal processing board, thereby the RGB signals in the TTL signals can be independently adjusted according to the requirements of a user. The display device can realize independent adjustment of a RGB message expressed by YUV signals.

The invention relates to a preparation method of a black extinction electrophoresis aluminum profile. The preparation method comprises: 1, sequentially carrying out degreasing, water washing, alkali washing, water washing, neutralizing and water washing on a formed substrate, and carrying out anodic oxidation to form an oxidation film on the surface of the substrate; 2, directly performing hot pure water washing on the obtained substrate without electrophoresis coloring; 3, carrying out black extinction electrophoresis paint coating on the substrate obtained in the step 2; and 4, sequentially carrying out pure water washing, draining and curing on the profile obtained in the step 3, discharging out of the frame, and packaging to obtain the finished product black extinction electrophoresis aluminum profile. According to the present invention, the method has advantages of excellent coating operation, high production economy, and excellent coating film performance.

The embodiment of electronic equipment control method and device, a storage medium and electronic equipment. The method is applied to the electronic equipment, and the electronic equipment comprises an environmental sensor, an electrochromic component and a control circuit, wherein the control circuit is coupled to the environmental sensor and the electrochromic component. The method comprises thefollowing steps: acquiring an environmental image by the environmental sensor, and determining environmental color information in the environmental image; determining a target environmental color according to the environmental color information by virtue of the control circuit; and driving the electrochromic component to display the target color according to the target environmental color and a control voltage corresponding to the target environmental color by virtue of the control circuit. According to the embodiment of the invention, the own color of the electrochromic component on the electronic equipment shell can be changed according to the environmental color under different environmental conditions, so that the appearance of the shell of the electronic equipment meets the color requirements under different scenes.

The invention relates to a TPO composition having a light-transmitting property, the TPO composition comprises a polyolefin elastomer POE, a polyolefin resin, a rubber, and a light-transmitting colormaster batch, and the light-transmitting color master batch comprises 50-70 parts by weight of a non-polar resin and 30-50 parts by weight of a toner based on 100 parts by weight of the total weight of the light-transmitting color master batch. The invention also relates to TPO artificial leather which comprises a TPO surface layer formed by the TPO composition. The TPO artificial leather according to the present invention can be applied to automotive interiors, and can achieve good light transmittance while satisfying desired color coverage.

The invention discloses a polyether type polyurethane rubber compound with high hardness and high fluidity. The rubber compound comprises the following components in parts by mass: 100 parts of raw polyurethane rubber UR101, 30-50 parts of precipitated white carbon black, 0.5-1 part of stearic acid, 1-3 parts of a silane coupling agent, 10-18 parts of anti-scorching TMPTMA, 1-2 parts of a crosslinking aid ZDMA, 2-5 parts of an anti-scorching peroxide vulcanizing agent, and 0-4 parts of a processing aid. According to the invention, the polyether type raw polyurethane rubber UR101 is used as a main body material, and a plurality of compounding agents with good compatibility are selected, so mooney viscosity is controlled to be 50 or below while the rubber compound meets the requirement for high-hardness, scorching time can be prolonged to meet the requirements of a processing technology, and finally, the rubber compound meets the performance requirements for high hardness and high fluidity.

The invention discloses a preparation method of high-strength colored glass fiber, and discloses a preparation method of producing high-strength colored glass fiber by coloring with a non-ferrous alloy and then heat-treating. The colored alloy of the invention is evenly mixed with the color fixing agent to make the coloring uniform, and then the high-strength colored glass fiber is obtained through dry spinning, laminar flow plasma spraying and heat treatment. Heat treatment does not change the shape and overall chemical composition of the workpiece, but by changing the microstructure inside the workpiece, or changing the chemical composition of the surface of the workpiece, endows or improves the performance of the workpiece, and improves the toughness and strength of the colored glass fiber. The color of the high-strength colored glass fiber produced by the invention is stable and uniform, and is not easy to spread.

The present invention relates to a display device, including a display panel, a backlight module under the display panel and a driving circuit, wherein, a filter substrate of the display panel includes a plurality sets of filters each of which includes a red filter, a blue filter and a transparent filter; the backlight module includes a white backlight and a green backlight; and the driving circuit drives the white backlight to emit light and drives a red and blue pixels corresponding to the red and blue filters respectively to display at odd frames (or even frames), and drives the green backlight to emit light and drives a transparent pixel corresponding to the transparent filter to display at even frames (or odd frames). With the above technical solution, the Adobe RGB color coordinates can be met while a color of a mixed light can be adjusted and brightness can be enhanced.

The invention discloses a preparation method of a yellow corrosion-resistant ceramic membrane grown in situ on the surface of an aluminum matrix composite material. The preparation method comprises the following steps: firstly, sequentially adding sodium silicate, sodium hydroxide, disodium edetate and potassium permanganate into deionized water, stirring uniformly, and taking the mixture solution as a micro-arc oxidation electrolyte; and then, pouring the electrolyte in a micro-arc oxidation electrolytic tank, taking an aluminum matrix composite material sample as an anode and a stainless steel plate as a cathode, and forming a yellow micro-arc oxidation membrane layer on the surface of the aluminum matrix composite material sample after micro-arc oxidation treatment. The prepared ceramic membrane well meets the market requirements for color diversification of the ceramic membrane, and the application limitations that the micro-arc oxidation ceramic membrane needs secondary coloring to obtain the surface color are broken. Meanwhile, the membrane layer has excellent corrosion resistance, a good technical background is provided for expansive application of the aluminum matrix composite material, and the preparation method is simple and convenient to implement.

The invention relates to preparation and a using method of a V.spinulosa Yan rhizome browning inhibitor. In the preparation of the inhibitor, mixed solution of oxalic acid, citric acid and ascorbic acid is adopted. The using method of the V.spinulosa Yan rhizome browning inhibitor comprises the following steps that: after harvested V.spinulosa Yan rhizomes are cleaned to remove sludge, impurities and the rotten, mildewed and nigrescent V.spinulosa Yan rhizomes, the V.spinulosa Yan rhizomes are soaked in aqueous solution containing the inhibitor to be stored and can be kept being not discolored for 60 days; or before being processed, the V.spinulosa Yan rhizomes are soaked for 2 to 8 hours. The V.spinulosa Yan rhizomes browning inhibitor can be used for effectively inhibiting the V.spinulosa Yan rhizomes from being browned in the machining process and has the advantages of long time of inhibiting the V.spinulosa Yan rhizomes from being browned, good effect, no damage to the original flavor of V.spinulosa Yan, high safety, no toxic or side effects on a human body and the like.

The invention provides a low-volatility modified polypropylene composite material, a preparation method and an application thereof. The low-volatility modified polypropylene composite material comprises the following components in parts by weight: 35-60 parts of low-flowability polypropylene, 40-60 parts of medium-flowability polypropylene, 0.4-0.8 parts of carbon black, 0-2 parts of an antioxidant, and 0-1 part of a lubricant. The invention provides a low-odor low-volatility environment-friendly product suitable for extrusion rolling production and applied to core layers of a luggage case anda carpet.

The invention relates to a preparation method of organic montmorillonite for a polyolefin composite material, and belongs to the deep processing technical field of the montmorillonite. The preparation method is characterized by comprising the steps of modifying montmorillonite by using short-chain organic cation quaternary ammonium salt; carrying out high-speed stirring reaction with nano silicon dioxide at the same time; and finally, centrifuging, drying and crushing, wherein adding amount of the organic cation quaternary ammonium salt is 0.8-1.2 times exchange capacity of the montmorillonite cations, and the adding amount of the silicon dioxide is 5%-20% the weight of the montmorillonite. According to the preparation method, intercalation of the montmorillonite is firstly carried out by using organic cations to change polarity of the organic montmorillonite and increase compatibility with the polyolefin material; meanwhile, the montmorillonite is compounded with nano silicon dioxide, so that interlayer spacing of the montmorillonite is further expanded, thermal degradation of organic cations can be restrained, color requirements of the composite material are satisfied, and therefore, the preparation method can be effectively used for the organic montmorillonite powder of the polyolefin material.

The invention discloses a method for dyeing pure cotton black yarns resistant to post-mercerizing strong base. The method comprises the following process steps: preparing a dyeing solution, dyeing, soaping twice, rinsing with hot water for three times, pickling, softening and squeezing water and drying. High-temperature reactive dyes are replaced by medium-temperature reactive dyes in a multiple-active group structure, the dye improvement rate is high, the color yield is high, and the compatibility of the dyes is excellent. Moreover, the dyeing temperature is low, the amount of the dyes is small, the dyeing cost is reduced, the alkali-resistant color fastness of the yarns is greatly improved after the dyed pure cotton black yarns are washed by a soaping solution containing a dispersing agent N, the post-mercerizing strong base resistance of the yarns is high after the yarns are subjected to color fixing through a reactive color fixing agent OS, and the yarns have high application value in actual production. After the yarns are dyed by the dyeing method, the alkali-resistant color fastness of the pure cotton black yarns reaches 4th-5th level, the staining fastness of the yarns reaches the 4th level, and the alkali-resistant fastness index of the colored yarns meets the standard requirement of China.

The invention discloses a special spinneret plate for spinning PA6 bulk yarns. The special spinneret plate comprises an oblong-shaped spinneret plate body, wherein the middle part of the spinneret plate body is provided with an elliptical spinneret hole area, the interior of the spinneret hole area is provided with 80 spinneret holes, each spinneret hole consists of an elastic convergent area I, an elastic convergent area II and a capillary area from top to bottom in sequence, each elastic convergent area I and each elastic convergent area II are respectively of an inverted frustum-shaped structure, each capillary hole is of a three-blade shape, the three blades of each three-blade capillary hole are respectively and uniformly distributed along the center of the corresponding capillary hole to the outside, the length of each blade is 0.7mm, and the width is 0.3mm. The special spinneret plate has the advantages that a melting body is enabled to be slowly converged and transited to a guide hole for elastic loosening, and then is subject to the elastic convergence to enter each capillary hole for spinning, so the damage to the melting body due to the large shearing force caused by the melting body entering and exiting the guide hole in the spinneret plate is greatly reduced by the elastic convergent, the uniform temperature and viscosity of the melting body are kept, the fiber with high quality is favorably spun, the spun fiber has bright and attractive luster, and the requirement of the carpet industry on the luster of the bulk yarn is met.

The invention discloses a preparation method of a zirconium oxide matrix soft glass polishing solution. The preparation method is characterized by comprising the following steps of (1) calcining, (2) testing a specific surface, (3) grinding, (4) screening, (5) testing the content of a solid and (6) batching. The polishing solution disclosed by the invention has the beneficial effects of good cutting output, good degree of finish to the polished surface and high safety and doped iron power meets the requirements of users on the color of slurry.

The invention provides a non-asphalt color spraying rapid-hardening waterproof paint. The non-asphalt color spraying rapid-hardening waterproof paint comprises a component A and a component B, the component A comprises the following raw materials: hydrogenated viscosifying resin, softening oil and a color paste, the component A also comprises the following raw materials: sodium dodecanesulphonate,nonylphenol polyoxyethylene ether, water, rubber latex, a silane coupling agent, an anti-oxidant, an anti-UV agent, and an antifoaming agent. The waterproof paint is characterized in that after artificial weathering aging for 5000 h, no powdering and bulking is generated, the tensile strength retention rate is 95-96%, and the fracture elongation percentage retention rate is 98-105%.

The invention discloses a production process of a full-black solar photovoltaic module. The production process comprises the following steps: S1, coating of a battery piece; S2, battery piece welding;S3, stacking; S4, stacking inspection; S5, laminating; S6, lamination inspection; S7, frame assembling; S8, installing of a junction box; S9, curing of the assembly; S10, cleaning of the assembly; S11, component testing; S12, inspecting of the appearance of a finished product; S13, packaging and warehousing. In the production process of the all-black solar photovoltaic module: 1, a vapor deposition method coating process is adopted for a battery piece, silicon nitride coating is carried out on the battery piece, the thickness of a silicon nitride film is 20-75 nm or 120-300 nm, and finally the color requirement of the battery piece of the all-black module is met; 2, a black frame is adopted; 3, the black film strip is disposed on the surface of the interconnecting strip solder strip; 4, the black shielding strips are covered on the head and tail bus bars by adhesive tapes, so the battery pieces can be black at any angle after being packaged into an assembly.

A washer whose appearance part has adjustable color and a method for adjusting said color are disclosed. Said method for adjusting the color of appearance part features that the main body of said appearance part is made up of transparent or semi-transparent material and a film with needed color is adhered to said main body. Its advantages are high flexibility to change color, and low cost.

The invention discloses a magnetic modified anti-radiation functional color master batch plastic material and a preparation method thereof. The material is composed of the following raw materials in parts by weight: 15-25 parts of phthalate butyl glycol ester, 10-15 parts of tetrafluoroethylene-hexafluoropropylene copolymer, 10-20 parts of acrylonitrile-styrene-acrylate copolymer, 60-80 parts of polycarbonate, 10-15 parts of nanometer barium carbonate, 20-25 parts of aramid staple fiber and 2-10 parts of silicon carbide wafer. The phthalate butyl glycol ester, the tetrafluoroethylene-hexafluoropropylene copolymer, the acrylonitrile-styrene-acrylate copolymer and the polycarbonate are mixed, so that the toughness, abrasive resistance, chemical stability, impact strength and radiation resistance of the material can be promoted; the polymer blends of the raw materials, such as, nanometer barium carbonate, aramid staple fiber and silicon carbide wafer, are blended and modified, so that the radiation resistance of the material can be promoted; on the basis of nanometer graphene among layers, the pore and specific surface area of a compound adsorption film are improved, and the effect is enhanced; and the magnetic modified anti-radiation functional color master batch plastic material meets the color requirement and the compound performance requirement.

The invention discloses an ageing-resistant nano modified environmental-friendly master batch plastic and a preparation method thereof. The plastic comprises the following raw materials in parts by weight: 12-25 parts of butylene terephthalate, 10-15 parts of a tetrafluoroethylene-hexafluoropropylene copolymer, 10-20 parts of an acrylonitrile styrene acrylate copolymer, 60-80 parts of polycarbonate, 10-15 parts of nano barium carbonate, 20-25 parts of aramid short fibers and 2-10 parts of silicon carbide wafers. As molecules of chitosan have positive charges, the plastic can adsorb bacteria with negative charges, so that the plastic has a sterilizing function. Fiber membrane layers of different diameters and porosities are prepared structurally, the porosity and specific surface area of a compound adsorption membrane are improved by combining nanographene among layers, and the function is enhanced.

The invention discloses a post mercerization alkali resisting pure cotton black yarn dyeing recipe and a preparation method thereof. A moderate-temperature type reactive dye replaces a high-temperature type reactive dye, a reactive black G dye with a vinyl sulfone and monochloro s-triazine MCTVS structure is adopted, the alkali resistance of the reactive black G dye is improved by compared with that of a common moderate-temperature type reactive dye, the reactive black G dye is used as a main dye during dyeing, through the shading of three matched dyes of reactive red S-3B, the reactive yellow TS-3R and reactive dark blue S-G which are good in alkali resistance, a dyeing solution is prepared, dyeing is performed under the condition of a moderate temperature of 60 DEG C, black which is pure and normal in coloured light, fuliginous and bright and has various coloured light can be obtained, and the requirements of customers to color of black yarns can be met. The dyeing solution not only has the effect of resisting high-concentration alkali in post mercerization when being used for dyeing pure cotton yarns, can ensure that dyed yarn after dyeing meets the national standard requirements to alkaline-resisting fastness indexes, but also has the advantages that the dyeing temperature is low, energy consumption is low, and the dyeing cost is lowered greatly.

The embodiment of the present application discloses an electronic apparatus control method, apparatus, storage medium and electronic device, applied to an electronic device. The electronic device comprises a vibration sensor, an electrochromic assembly and a control circuit coupled to the vibration sensor and the electrochromic assembly. The method comprises: acquiring vibration information of theelectronic device by the vibration sensor; Extracting, by a control circuit, vibration characteristics of the vibration information according to the vibration information, the vibration characteristics comprising a vibration frequency; The control circuit drives the electrochromic component to display the corresponding color with the control voltage corresponding to the vibration characteristic according to the vibration characteristic. The electrochromic component on the house of the electronic device in the embodiment of the present application can change its own color according to different use scenario, not only can the message reminding effect be achieved, but also the appearance of the housing of the electronic device can meet the color requirement under different scenarios.

The invention discloses an environment-friendly flame-retarding heat-shrinkable tubing material. The tubing material is prepared from, by weight, 40-100 parts of EVA resin, 30-90 parts of magnesium hydrate, 30-60 parts of composite flame retardant, 2-6 parts of color master batches, 1-10 parts of anti-aging agent, and 1-7 parts of biphasic solvent, wherein the composite flame retardant is halogen-free and non-phosphorus flame retardant FR-400B, the anti-aging agent is antioxidant RD, and the biphasic solvent is maleic anhydride grafting biphasic solvent. The invention further discloses a method for preparing raw material grains of the environment-friendly flame-retarding heat-shrinkable tubing material. The method comprises the steps of preparing raw materials, stirring and granulation. An environment-friendly flame-retarding heat-shrinkable tubing prepared with the environment-friendly flame-retarding heat-shrinkable tubing material has a smooth surface and high anti-aging capacity, and the flame-retarding effect of the tubing is as good as that of a traditional heat-shrinkable tubing containing halogen and phosphorus. By the adoption of the color master batches in different colors, the prepared environment-friendly flame-retarding heat-shrinkable tubing material can be in various colors, and the requirements of consumers and manufacturers for colors can be met.

The invention discloses a method for making biscuits by using dendrobium devonianum paxt residues. The method includes the following steps of pre-processing the dendrobium devonianum paxt residues, extracting dietary fibers, extracting anthocyanins and making biscuits. The dendrobium devonianum paxt residues are used for making the biscuits, the anthocyanins and the dietary fibers are extracted from the dendrobium devonianum paxt through corresponding process conditions, the color requirements of the biscuits are met, at the same time, the biscuits are rich in dietary fiber of dendrobium devonianum paxt and rich in nutrition, the dendrobium devonianum paxt residues obtained after liquor brewing is re-used, the high waste utilization effect is achieved, the economic value is improved, and the environment pollution is reduced.

The invention discloses an anti-aging nano modified masterbatch carrier for controlling radiation and a preparation method thereof. The anti-aging nano modified masterbatch carrier comprises the following raw materials in parts by weight: 15-25 parts of phthalate butyl glycol ester, 10-15 parts of a tetrafluoroethylene-hexafluoropropylene copolymer, 10-20 parts of an acrylonitrile-styrene-acrylate copolymer, 60-80 parts of polycarbonate, 10-15 parts of nano barium carbonate, 20-25 parts of an aramid short fiber and 2-10 parts of silicon carbide platelets. Phthalate butyl glycol ester, tetrafluoroethylene-hexafluoropropylene copolymer and acrylonitrile-styrene-acrylate copolymer are mixed with polycarbonate, so that the toughness, the wear resistance, the chemical stability, the impact strength and the radiation resistance of the material are improved; polymer blends such as nano barium carbonate, the aramid short fiber and the silicon carbide platelets are blended and modified, so that the radiation-proof property of the material can be improved; and meanwhile, gas harmful to a human body is not generated at a relatively high temperature and the properties of the high temperature resistance and the tear resistance are perfectly fused, so that the anti-aging nano modified masterbatch carrier can be applied to various bad conditions for working.

The invention belongs to the technical field of heat shrink films, and particularly relates to a heat shrink film of a reclaimed material and a preparation method of the heat shrink film. A reclaimed polyester raw material and a native polyester raw material are used as mixed raw materials, and the reclaimed polyester raw material is a polyethylene glycol terephthalate copolyester material copolymerized and modified by isophthalic acid; the native polyester raw material is a copolyester material of copolymerized and modified polyethylene glycol terephthalate, and the modified component comprises one or more of binary acid or dihydric alcohol. The prepared heat shrink film has the characteristics of high recovery amount, good thickness uniformity, good mechanical strength, good shrink rate uniformity, normal color, small color fluctuation, wide shrinkrange and the like.

The invention discloses a synthetic method of salbactam acid. The synthetic method comprises the following steps: carrying out diazotized bromination reaction on 6-aminopenicillanic acid to form bromopenicillanic acid; and then, carrying out oxidation reaction and reduction reaction to obtain salbactam acid, wherein in the diazotized bromination reaction, 6-aminopenicillanic acid is continuously added in form of an acidic solution, the acidic solution of 6-aminopenicillanic acid is 5-8% sulfuric acid aqueous solution, 13-15% hydrobromic acid aqueous solution or 5-8% hydrochloric acid aqueous solution. 6-aminopenicillanic acid is dropwise added in form of the acidic solution, so that dust pollution is avoided and the work environment of field personnel is improved. Meanwhile, 6-aminopenicillanic acid exists in form of stable salt, decomposition reaction is avoided, and the reaction quality is improved. The three-step yield of the method is over 70%, the HPCL purity is over 99.7%, the individual impurity content is less than 0.1% and the total impurity content is less than 0.5%.