69results about How to "Improved color stability" patented technology

The invention discloses a TOPCon battery capable of reducing UV attenuation and a preparation method thereof, and belongs to the field of TOPCon batteries, the TOPCon battery comprises a silicon substrate, and three silicon nitride layers / two silicon oxynitride layers / one silicon oxide layer are sequentially deposited on the front surface of the treated silicon substrate to form a front surface antireflection layer; and depositing three silicon nitride layers on the back of the silicon substrate to form a back antireflection layer. The polycrystalline solar cell has the advantages that three silicon nitride layers / two silicon oxynitride layers / one silicon oxide layer are arranged on the front face of the silicon substrate to serve as the front face antireflection layer, the color stability is high, the surface of the silicon substrate can be better passivated, light reflection can be better reduced, the open-circuit voltage and the short-circuit current of the polycrystalline solar cell are improved, and the service life of the polycrystalline solar cell is prolonged. Therefore, the photoelectric conversion efficiency of the polycrystalline solar cell is effectively improved.

The present invention relates to a colloidal gold card for detecting pesticide residues and a preparation method and application thereof. The colloidal gold card comprises a bottom plate and a sample pad, a gold binding pad, a nitrocellulose membrane and a water-absorbing pad which are sequentially overlapped on the bottom plate. The nitrocellulose membrane is provided with a detection line coated with a pesticide antigen and a quality control line coated with a secondary antibody. The gold binding pad contains colloidal gold-labeled pesticide antibodies, sucrose, disodium hydrogen phosphate dodecahydrate, bovine serum albumin, sodium caseinate, trehalose and polyethylene glycol. In the colloidal gold card, the gold binding pad contains sucrose, disodium hydrogen phosphate dodecahydrate, bovine serum albumin, sodium caseinate, trehalose and polyethylene glycol, which can effectively protect antigens and antibodies, eliminate the influence of tea polyphenols, flavonoids, pigments and minerals in tea on color development, and improve the anti-interference property of the colloidal gold card.

The invention discloses a color developing composition as well as a use method and application thereof. The color developing composition comprises the following components: a) polyglycerol fatty acid ester; b) at least one of polyol fatty acid ester and alkyl glyceryl ether; and c) at least one of an anionic surfactant and a cationic surfactant. According to the invention, through compounding of specific types of surfactants, the obtained color developing composition can present a color developing appearance after being diluted with water, has good color developing stability, and also has a polarization phenomenon and an excellent moisturizing effect; as a novel developing additive, the developing composition can be widely applied to products such as cosmetics, mouthwash, food and beverages, so that the products are colorful, and the safety is high.

The invention discloses a method for improving the color stability of phycocyanin, a phycocyanin-polysaccharide compound and application of the phycocyanin-polysaccharide compound, the prepared compound product presents the specific blue color of the phycocyanin, the color of a solution is obviously improved compared with that of single phycocyanin in an acid environment, and the pigment retention rate is obviously increased. The advantages of high coloring power and high functional activity of phycocyanin are reserved, the used raw materials are free of toxic and harmful reagents and are all food-grade raw materials, the preparation method is green and mild, special processing equipment such as high temperature and high pressure is not needed, and expanded production is easy. The invention not only solves the defect that the phycocyanin is easy to turn green under the acidic condition in the production and processing process, but also solves the technical problems of low action efficiency, low safety and difficulty in large-scale production in the aspect of improving the acid stability of the phycocyanin.

The invention relates to the technical field of colored tire rubber, and particularly discloses an anti-tarnishing rubber composition for a colored tire and a preparation method of the anti-tarnishing rubber composition. According to the anti-discoloration rubber composition for the colored tire, the modified colored white carbon black is firstly prepared, then the solution polymerized styrene-butadiene rubber, the natural rubber and the ethylene propylene diene monomer are used as rubber matrixes, and the modified colored white carbon black is added for coloring and reinforcing; and adding auxiliary agents such as polydicyclopentadiene resin, titanium dioxide, a YDH-151 silane coupling agent, zinc oxide, stearic acid, sulfur, a TBBS accelerator, protective wax, an AFS / LG anti-aging agent, an antistatic agent and the like to prepare the anti-tarnishing rubber composition for the colored tire. The anti-discoloration rubber composition for the colored tire has the advantages of being stable in color, resistant to aging, good in stretchability, high in wear resistance and high in weather resistance.

The invention belongs to the technical field of weather-resistant ABS (Acrylonitrile Butadiene Styrene) dyeing materials, and particularly relates to a weather-resistant ABS dyeing material as well as a preparation method and application thereof. Comprising the following components in parts by weight: 70-95 parts of ABS resin, 0.1-0.6 part of an antioxidant, 0.2-1 part of a weather-resistant agent and 0.1-2 parts of toner, the antioxidant is one or more of an antioxidant 1010, an antioxidant 1076 and an antioxidant 168; the weather-resistant agent is one or more of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P (Ultraviolet-P); the toner is one or more of titanium dioxide, EG red, 3G orange and iron oxide red. Compared with the prior art, the ABS dyeing material for the parking air conditioner shell provided by the invention has higher color stability and higher ultraviolet aging resistance, meets the use requirements of the automobile industry on weather-resistant ABS materials, and has a wide application prospect.

The invention discloses a white light emitting layer material and a white light organic electroluminescent device, and belongs to the technical field of organic electroluminescent devices. The white light emitting layer material is composed of a red light emitting layer, a green light emitting layer and a blue light emitting layer in sequence or composed of a yellow light emitting layer and a blue light emitting layer in sequence. The red light-emitting layer is composed of a TADF host material and a red phosphorescent light-emitting material; the green light-emitting layer is composed of a TADF host material and a green phosphorescent light-emitting material; the blue light-emitting layer is composed of a host material containing phosphorus-oxygen double bonds and a blue TADF light-emitting material; the yellow light-emitting layer is composed of a TADF host material and a yellow phosphorescent light-emitting material. The white light emitting layer material has spectrum coverage with the emission wavelength of 400-780 nm, and when the white light emitting layer material is applied to a white light organic electroluminescent device, the device has the advantages of low turn-on voltage, low color temperature, low efficiency roll-off, high efficiency, high color rendering index and excellent color stability.

This invention proposes a method and system for intelligent ink volume prediction and adaptive color correction in printing equipment. The method includes: acquiring image data of the page to be printed, performing region segmentation and neighborhood connectivity analysis to generate a structure-weighted effective ink density, and calculating a page-level ink volume prediction value in conjunction with a paper correction factor; mapping the ink volume prediction value and effective ink density to the printhead's basic jetting parameters and the scanning controller's structural constraint parameters; performing linear gain and nonlinear convergence processing on the original color channel values ​​based on the above parameters to generate corrected channel values; driving the printhead to print, and sampling the printed scanned tape using a linear optical acquisition unit; and performing residual compensation and convergence constraint correction on the execution values ​​of subsequent scanned tapes based on the difference between the measured values ​​and the target values. This invention can improve the consistency and accuracy of printed colors.

The invention relates to the field of organic pigments, and discloses a preparation method and application of nano organic pigments with different crystal forms. The preparation method comprises the following steps: 1) dissolving an organic pigment crude product in a good solvent, and adding inorganic salt for activation; 2) dropwise adding a poor solvent at a gradient rate, adding a crystal form guiding agent, and inducing formation of a crystal nucleus; wherein the alpha crystal form directing agent is magnesium stearate; the beta crystal form directing agent is dibutyl phthalate; the gamma crystal form directing agent is polyethylene glycol; the initial gradient rate is 0.5-1 mL / min, and the gradient rate is increased by 0.2-0.3 mL / min every 8-12 min; 3) ultrasonic treatment; 4) cooling, and adding a surface modifier for surface modification; according to the preparation method, the nanometer organic pigment with the target crystal form can be accurately obtained through process regulation and control, the nanometer organic pigment is uniform in particle size distribution, good in dispersity, good in heat-resistant stability and high in color and luster strength, and the nanometer organic pigment has the advantages of being good in flocculation-resistant stability and weather resistance after a coating is formed.

The invention belongs to the technical field of aeronautical materials, and particularly relates to a PEI modified material containing a high-temperature composite dispersion system as well as a preparation method and application of the PEI modified material. The PEI modified material containing the high-temperature composite dispersion system provided by the invention is prepared from the following raw materials: polyetherimide resin, titanium dioxide, carbon black and dispersing agents (a coupling agent and polyamide wax). The PEI modified material containing the high-temperature composite dispersion system provided by the invention can realize efficient and uniform dispersion and color regulation and control of pigments in a high-viscosity and strong-polarity system, and has excellent heat resistance, mechanical property and flame retardant property, and interior structural parts prepared from the PEI modified material meet the comprehensive requirements on light weight, attractiveness and durability in the aviation field.

The invention belongs to the technical field of building coatings, and particularly relates to reflective heat-insulation sand wall paint as well as a preparation method and application thereof. According to the reflective heat-insulation sand wall paint provided by the invention, the modified silica sol is introduced into the composite emulsion and the reflective heat-insulation sintered color sand, and the ratio of the modified silica sol to other components is regulated and controlled, so that the stability of the modified composite emulsion and the color stability and pigment adhesion of the reflective heat-insulation sintered color sand can be obviously improved. Through the synergistic effect of the components, a coating formed by coating the reflective heat-insulation sand wall paint on the surface of a building has high ultraviolet light absorption ratio and near-infrared reflectance ratio, good reflective heat-insulation performance, excellent weather resistance and stain resistance and more durable reflective heat-insulation effect.

The invention discloses an optimization process for preparing hydrolysis-resistant PET (polyethylene terephthalate) master batch. The optimization process comprises the following steps: S1, pretreating raw materials; s2, low-temperature pre-dispersion: adding the dried raw materials weighed according to the formula proportion into a high-speed mixer, so that the anti-hydrolysis agent and the auxiliary agent are uniformly attached to the surface of the PET base material to form a premix; s3, mild extrusion granulation: melting and mixing the premix through a twin-screw extruder, and extruding the premix into filaments through a die head; s4, the filaments are rapidly cooled and shaped through a cooling water tank, and secondary cross-linking is avoided; s5, pelletizing by adopting a pelletizer to obtain primary master batches; s6, the primary master batch is subjected to vacuum drying, surface moisture is removed, and the anti-hydrolysis PET master batch is obtained.The thermal degradation of a PET base material and the advanced reaction of an anti-hydrolysis agent are reduced, the intrinsic viscosity of the master batch is stable, and the anti-hydrolysis efficiency is improved.

The utility model relates to the field of lighting, and discloses an LED light source device and lighting equipment. The white ink layer is positioned on the upper surface of the substrate; mounting holes are distributed in the white ink layer; the LED chip is positioned on the upper surface of the substrate and is electrically connected with the substrate through the mounting hole; the white glue reflecting layer is positioned on the surface of the white ink layer and is positioned around the LED chip; and the fluorescent colloid is positioned on the surface of the white glue reflecting layer and covers the LED chip. The white glue reflecting layer is located on the upper surface of the white ink layer, and the white glue reflecting layer has the characteristic of high temperature resistance, is not prone to discoloration at the high temperature and ensures long-term lighting effect stability, so that a good reflecting effect can be achieved on light emitted by the LED chip, the lighting effect of the LED light source device is improved, and the service life of the LED light source device is prolonged. And the problems of color temperature dispersion and poor color consistency can be solved, and the chromaticity stability is improved.

The application relates to the field of high polymer material and film processing technology, in particular to a forming and processing technology of a biaxially stretched polymer film; the technology comprises the steps of inorganic particle surface modification, esterification, polycondensation, melt extrusion casting and biaxial stretching and winding; the technology combines specific monomer copolymerization to provide main chain rigidity and steric hindrance, and cooperates with multifunctional crosslinking monomers to build a slightly long branched and micro-crosslinked structure in the system; the core is to introduce an end group reaction agent and a macromolecular antioxidant to close the polar end group to inhibit degradation, and to combine the surface modified nanoparticles with the monomer containing a sulfonate group to form a polar ion aggregate in the amorphous region; the application overcomes the defects that the traditional process lacks a main chain rigidity cooperative design and an end group closing mechanism, causes a significant increase in thermal shrinkage and a decrease in dielectric performance in a high temperature and high frequency scene, improves the thermal dimensional stability of the material, and improves the dielectric breakdown strength and the surface metal layer adhesion.

The invention discloses a preparation method of a simulation tree with an infrared stealth camouflage characteristic, and belongs to the technical field of infrared camouflage. The preparation method is used for solving the technical problems that in the prior art, a camouflage tree for military camouflage is poor in water resistance and acid-resistant color fastness, and the infrared stealth camouflage characteristic of a simulation tree needs to be further improved, and the preparation method of the simulation tree with the infrared stealth camouflage characteristic is provided. Comprising the following steps: heating and melting infrared simulation resin imitating the color of bark, and then coating the infrared simulation resin on the outer part of a simulation tree skeleton to form a simulation coating layer with the thickness of 20-30mm on the outer part of the simulation tree skeleton. By preparing the simulation tree skeleton coated with the glass fiber and coating the simulation tree skeleton with the infrared simulation resin, the highly similar simulation tree is prepared, the water-resistant and acid-resistant color fastness of the simulation tree is improved, the moisture absorption performance of the simulation tree is also improved, the transpiration of green vegetation leaves is simulated, and the simulation tree skeleton can be used as a simulation tree. The target is fused into the natural environment, and the infrared stealth effect is improved.

The application discloses a kind of image shadow removal methods of balancing deterministic recovery and perceived quality, comprising:1, first stage global regression analysis is carried out to shadow image, global illumination and color consistency of image are repaired using global regression network based on no residual, and deterministic illumination anchor point is established;2, the output of global regression network is input into the diffusion model of second stage as conditional space prior, and local perceptual refinement is carried out using conditional diffusion model based on block, and fine texture details are recovered by generative prior;3, in the reverse denoising sampling process of second stage, introduce random block overlap mechanism, calculate the mean of all covering block prediction noise as updating basis for the purpose of eliminating the boundary artifact when full resolution inference.The application can significantly improve the visual fidelity of the de-shadowed image while ensuring pixel-level accuracy, and can efficiently process high-resolution images under limited video memory constraints.

The invention discloses an orange enhanced color master batch and a preparation method thereof, and belongs to the technical field of high polymer material coloring, the method comprises the following steps: mixing and ball-milling a pigment and a modified coupling agent, adding magnesium stearate, and sanding to obtain color paste; mixing and banburying the color paste, PP, an antioxidant, a plasticizer and a light stabilizer; extruding and granulating through a double-screw extruder to obtain pretreated color master batches; and finally, drying and screening to obtain the orange enhanced color master batch. Compared with the prior art, the color master batch is prepared through a specific synthesis process, the compatibility of the pigment and PP is enhanced, and the dispersity and aging resistance of the color master batch are improved. The color master batch provided by the invention has excellent color uniformity, stability and aging resistance, and is suitable for the field of high-performance plastic coloring.

The invention relates to the technical field of badge paint surface preparation, and discloses a badge paint surface production process, which comprises the following steps: arranging liquid stoving varnish on the surface of a badge, smearing cat eye glue on the liquid stoving varnish in a non-dried state of the liquid stoving varnish, and arranging magnet powder in the cat eye glue into a preset color-changing shape by utilizing a magnet, and finally, drying and fixing are conducted, so that the surface of the badge presents a color changing effect through cat eye glue, unique visual experience is achieved, and the visual effect is improved.

The invention discloses jasmine flower white tea cocktail and a preparation method thereof, and belongs to the technical field of cocktail mixing. The cocktail is prepared from the following raw materials: 40 vol% of white rum with the volume fraction of 10%, a jasmine flower white tea extracting solution with the volume fraction of 30%, a 50g / L sugar source and 100g / L squeezed litchi juice, wherein the sugar source is prepared from jasmine flower honey and white cane sugar according to the mass ratio of 7: 3; according to the cocktail, original jasmine flowers and white tea serve as basic raw materials, the medicinal value and unique flavor of the jasmine flowers and the white tea are effectively combined, the cocktail is rich in crocin and tea polyphenol components, and the ingredients are natural, clean, good in taste, low in alcohol degree, healthy and nutritional.

The invention discloses rosin-based water-based antibacterial ink and a preparation process thereof, and belongs to the technical field of ink. The rosin-based water-based antibacterial ink is prepared from the following components in percentage by weight: 15 to 20 percent of water-based heat-resistant resin, 25 to 30 percent of composite pigment, 2 to 3 percent of green antibacterial agent, 6 to 8 percent of additive and 40 to 50 percent of deionized water, the water-based heat-resistant resin is obtained by polymerizing rosin modified resin, an emulsifier and acrylate, the composite pigment is a polyester carbon black composite material, and the auxiliaries comprise a dispersing agent, a thickening agent, a defoaming agent and a preservative. According to the technical scheme, the environment-friendly development requirement is met, meanwhile, the rosin-based water-based antibacterial ink further has good adhesion performance and antibacterial performance, the antibacterial effect is good, the antibacterial duration time is long, and the rosin-based water-based antibacterial ink can be widely applied to the field of various printed products such as tissue packaging.

The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. More particularly, the present invention relates to a thermoplastic resin composition including 100 parts by weight of a base resin including one or more (A) selected from the group consisting of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (a-1) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm, an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (a-2) containing alkyl acrylate rubber having an average particle diameter of 150 to 600 nm, and an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (a-3) containing alkyl acrylate rubber having an average particle diameter of 80 nm or more and less than 150 nm and one or more (B) selected from the group consisting of a (meth)acrylic acid alkyl ester polymer (b-1) and a (meth)acrylic acid alkyl ester compound-aromatic vinyl compound-vinyl cyanide compound copolymer (b-2); 0.5 to 3.5 parts by weight of one or more (C) having a molecular weight of 280 to 600 g / mol and selected from the group consisting of a benzotriazole-based UV stabilizer, a benzoate-based UV stabilizer, and a benzophenone-based UV stabilizer; and greater than 0.6 parts by weight and 2 parts by weight or less of an NH-type HALS-based UV stabilizer (D) having a molecular weight of 300 to 700 g / mol, wherein the graft copolymer (a-1) has an alkyl acrylate coverage (X) value of 65 % by weight or more, a method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition. According to the present invention, the present invention has an effect of providing a thermoplastic resin composition having excellent mechanical properties, transparency, and weather resistance, having little change over time and excellent color stability due to excellent weather resistance, and being capable of providing an aesthetically pleasing appearance, a method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition.

The utility model discloses a color master batch preparation device, and particularly relates to the technical field of color master batch preparation, the color master batch preparation device comprises a shell, and a mixing assembly is mounted in the shell; the mixing assembly comprises a first motor, a rotating rod is installed at the output end of the first motor, multiple fixing rods are fixedly connected to the outer side of the rotating rod, stirring rods are fixedly connected to the top ends of the multiple fixing rods, filtering barrels are installed on the outer sides of the multiple fixing rods and the stirring rods, stirring barrels are installed on the outer sides of the filtering barrels, and discharging grooves are formed in the bottoms of the stirring barrels; the right side of the shell communicates with a communicating pipe. Compared with the prior art, the mixing assembly is arranged, the multiple stirring rods are used for stirring in the filtering barrel, impurities are screened out through filtering holes of the filtering barrel, then the mixing barrel is used for driving the spiral blades to rotate, color master batches can be fully and evenly mixed, and the uniformity of pigment distribution in the color master batches is ensured; the color stability of the color master batch is improved, color fading and discoloration in the using process are effectively avoided, and the product quality is improved.

The invention relates to the field of textile printing and dyeing, in particular to a navy blue dye compound as well as a synthesis method and application thereof in a moist crosslinking process, and the structural formula of the navy blue dye compound is as follows: # imgabs0. The dye has excellent color stability, and effectively fills up the blank of black and blue series dyes in a moist crosslinking process and yarn-dyed pure cotton non-ironing woven fabric.

The invention relates to a neutral ink ball-point pen color follow-up sealant and a preparation method thereof. The neutral ink ball-point pen color follow-up sealant has the advantages of being excellent in follow-up performance and anti-falling performance and stable in color. The ionized maleic anhydride grafted SEBS elastomer is used as a thickening agent of the follow-up sealant, so that good follow-up performance is achieved, the anti-falling performance is guaranteed, and the contradictory problem of the anti-falling performance and the follow-up performance is solved. The modified nanoparticle dye is adopted as the coloring agent of the follow-up sealant, the color stability is excellent, a large number of tests are not needed, time is not needed to screen organic dye matched with a follow-up sealant system, follow-up sealant products of various colors can be conveniently developed according to needs, and the individual needs of consumers are met.

The invention provides a cyclic sulfate solution as well as a preparation method and application thereof. The cyclic sulfate solution comprises a cyclic sulfate compound, a color blocking agent and an organic solvent, the color blocking agent comprises a compound containing metal cations, and the metal cations comprise at least one of tungsten cations, molybdenum cations, nickel cations, cobalt cations, vanadium cations, niobium cations, titanium cations, manganese cations, ruthenium cations, platinum cations and palladium cations. According to the cyclic sulfate solution disclosed by the invention, by adding the color blocking agent, the color change problem of the cyclic sulfate solution can be improved, and the quality risk is avoided while the product solubilization is realized.

The invention relates to the technical field of high polymer materials, in particular to a polyester material as well as a preparation method and application thereof. The polyester material includes: 73 wt% to 83 wt% of polycarbonate; 10 wt% to 15 wt% of a diphenyl sulfone; 3 wt% to 5 wt% of a compatibilizer; and 4 wt% to 7 wt% of other auxiliary agents. The polyester material provided by the invention has excellent mechanical properties, impact resistance, heat resistance and color stability, and can maintain more than 98% of material properties for 1000 hours under the condition of radiation energy of 35 kGy. The method can be applied to the fields of communication, nuclear power stations, medical treatment, food sterilization and the like.

This invention relates to a copper-doped anhydrous guanine crystal sheet, its preparation method, and its application, belonging to the field of spectral camouflage and stealth materials. Specifically, it relates to a method for synthesizing copper-doped guanine crystals. In this invention, copper-doped chlorophyll is used as the functional molecule, and organic small molecule uric acid and high molecular weight polymer (P(VP-co-VA)) are used as additives to regulate the synthesis of green guanine microsheets that preferentially expose the (100) crystal facet with the optimal refractive index. The guanine crystal microsheets prepared by this invention have high reflectivity and specific visible light absorption in the 200-2500 nm range, while also having the effect of weakening polarized light. Embedding the pigment molecules into the crystal lattice achieves a good stabilizing effect on copper-doped chlorophyll, making it a novel camouflage material with high reflectivity and excellent stability.

The invention belongs to the technical field of material extraction and refining, and particularly relates to a method for extracting and refining long carbon chain dibasic acid produced by a biological fermentation method, which comprises the following steps: 1) adding an acidic material into long carbon chain dibasic acid fermentation liquor obtained by the biological fermentation method to adjust the pH value to 5.5-6.5, reacting, separating out solid, and separating to obtain a precipitate; 2) adding the precipitate into water, adding an alkaline substance to adjust the pH value to be greater than or equal to 7.8, and dissolving the precipitate to obtain a treatment solution; (3) adding an acidic material into the treating fluid to adjust the pH value to be less than or equal to 4.5, reacting, separating out a solid, and separating to obtain a long carbon chain dibasic acid crude product, and (4) mixing the long carbon chain dibasic acid crude product with an acid solution, and then carrying out melt crystallization to obtain the long carbon chain dibasic acid, so that the yield and the purity are improved, and the chromatic value is reduced.

The invention relates to the technical field of textile printing and dyeing, and particularly discloses a golden yellow dye and a synthesis method thereof. According to the golden yellow dye provided by the invention, the structure of each group of the dye is stable and not twisted under the induction of low-energy light waves through the arrangement of the whole structure, excellent color stability is obtained, and the golden yellow dye has non-photosensitivity and excellent low affinity so as to show excellent soaking-resistant soap water fastness; the dye can be effectively used as a non-photosensitive dye to be applied to outdoor or anti-solarization brocade / spandex fabrics.

The present application relates to the technical field of food processing, and particularly refers to a fruit pulp color protection formula and a processing method thereof. The color protection liquid formula provided by the present application comprises the following components in percentage by mass: 0.05%-0.25% of citric acid, which is used to adjust the pH value of the color protection liquid and create a suitable color protection environment; 0.01%-0.1% of sodium erythorbate, which is used to play an antioxidant role and reduce the oxidation and browning of fruit pulp; and 0.05%-0.5% of calcium chloride, which is used to enhance the stability of the cell wall structure of fruit pulp and reduce the loss of color and luster. The present application has the following beneficial effects: excellent color protection effect: the components in the color protection liquid formula of the present application can synergistically inhibit the oxidation and enzymatic browning of fruit pulp, significantly improve the color stability of fruit pulp, and prolong the shelf life of products; convenient operation: the processing method has clear steps and does not require complex equipment, which is convenient for large-scale production and promotion and reduces the production cost of enterprises; wide applicability: the present application is suitable for various fresh fruit pulp and thawed frozen fruit pulp, and can meet the processing needs of different foods such as fruit jelly and fruit beverage, and has high practical value.