174results about How to "Salt-tolerant" patented technology

The invention relates to a high-efficiency ferment for fermenting bean pulp, belonging to the biologic enzymolysis fermentation technical field. The high-efficiency ferment is formed by mixing bacillus subtilis, bacillus licheniformis, lactobacillus acidophilus, lactobacillus casei, saccharomyces cerevisiae and candida utilis. The fermentation technology comprises the following steps: crushing the bean pulp and corn; activating the strains; uniformly mixing the bean pulp and the fermentation liquor using a mixer; packing the mixed bean pulp in fermentation bag; fermenting the packaged bean pulp and processing fermented bean pulp: drying-crushing-detecting-packaging-finished product. The technology is simple and the product quality is stable and the content of the anti-nutrient factor in the bean pulp is eliminated and obviously reduced, therefore the bean pulp is a safe plant protein feeder for infant animal with balanced nutrient, good quality and low price and help for health growth of the infant animal, in replace of animal protein feeder of bone powder, fish powder or the like.

The invention discloses a thickener of water-based breakdown fluid, which is polymerized by acrylamide monomer and other olefin monomer through interval method, wherein the interval method puts allocated monomer into reacting container, which is heat to polymerize through catalyzing, heating by microwave and irradiating by ultraviolet.

The invention discloses an association polymer fracturing fluid prepared by recovery waste water of crude oil. The fracturing fluid comprises the following components: 0.2-1.4wt% of thickening agent, 0.01-0.1wt% of thickening assistant, 0.05-0.1% of metal ion stabilizing agent, 0.02-0.05wt% of water block preventive, 0.05-0.2wt% of high-temperature stabilizing agent, 1-2wt% of clay stabilizing agent and the balance of the recovery waste water of the crude oil. Compared with the prior art, the fracturing fluid has the benefits that the fracturing fluid system adopts an association polymer as a primary thickening agent, no cross-linking agent is used, structural viscosity is formed by the synergetic effect of the association polymer and an ampholytic surfactant, and the fracturing fluid has the characteristics of temperature resistance, good salt tolerance, shear resistance, bacterial corrosion resistance and low friction, and has a good solid carrying behavior when the viscosity is greater than 20mPa*s.

The invention belongs to the technical field of feed, and particularly relates to compound feed for improving the production performance of laying hen and the egg quality. The compound feed consists of corn, lard oil, soybean meal, rape seed cake, peanut meal, gunite bran, mountain flour, calcium hydrophosphate, lysine, methionine, liquid phytase, liquid xylanase and premix. The compound feed provided by the invention can obviously improve the production performance of laying hen and improve the laying rate and the egg quality, and can increase the weight of a single egg and reduce the damage rate of eggs; and moreover, after being eaten by the laying hen, the compound feed can promote digestive absorption, improve the feed conversion rate and the feed-gain ratio, and increase the economic benefits of laying hen farming.

The invention provides a composite oil displacement agent and a preparation method and an application thereof. The composite oil displacement agent includes a symmetrical alkyl alcohol polyoxyethyleneether sulfonate anionic-non-gemini surfactant and a cationic surfactant, with the balance being water. The mol ratio of the symmetrical alkyl alcohol polyoxyethylene ether sulfonate anionic-non-gemini surfactant to the cationic surfactant is 1:2-1:4. The composite oil displacement agent can significantly reduce the oil-water interfacial tension, especially can produce ultra-low interfacial tension for low-permeability reservoirs, has excellent interfacial activity, and has significance for efficient development of the low-permeability reservoirs and the improvement of crude oil recovery efficiency.

The acid-proof and wear-proof anticorrosive paint includes two parts, component A and component B. The component A consists of epoxy resin 40-50 weight portions, silicone resin 30-40 weight portions, carbon black 2-4 weight portions, xylene 12-22 weight portions; and the component B is curing agent of polyamide resin. The preparation process of the acid-proof and wear-proof anticorrosive paint includes the following steps: preparing component A through mixing epoxy resin, silicone resin and carbon black, adding xylene and grinding; preparing component B; and packing the component A and the component B separately. Before painting, the component A and the component B are mixed in the weight ratio of 3-5 to 1. The paint can form coating capable of resisting heat, wear, acid, alkali and corrosion and with long service life through curing at normal temperature.

The invention relates to the technical field of organic silicon. In order to solve the problem of high cost due to the fact that a photoinitiator needs to be added in curing of existing UV-cured polyurethane and the problem that yellowing and degradation of mechanical properties are easily caused by the low-molecular-weight photoinitiator, the invention provides a preparation method of a UV-curedorganic silicon modified hyperbranched polyurethane material. The method comprises the following steps: reacting isocyanate-terminated hyperbranched organic silicon modified polyurethane with hydroxylacrylate to obtain organic silicon modified polyurethane containing acrylate groups, uniformly mixing the organic silicon modified polyurethane containing acrylate groups with polysiloxane containingmercaptopropyl groups, carrying out vacuum defoaming for 10-30 minutes, and carrying out UV curing for 10-120 seconds. The optical transparent material not only has the flexibility and mechanical properties of a polyurethane material and the excellent adhesive property with a base material, but also can give full play to the advantages of temperature resistance, weather resistance, ultraviolet radiation resistance, hydrophobicity and the like of organic silicon.

The invention discloses a crop straw organic fertilizer and a preparation method thereof. The crop straw organic fertilizer includes, by weight, 30-50 parts of crop straw, 20-30 parts of excrement of poultry and livestock, 1-2 parts of micro-bacterial spore powder, 10-20 parts of urea, 5-10 parts of mushroom residue, 5-10 parts of humic acid, 3-5 parts of enzyme bacteria, 2-3 parts of magnesium sulfate and 2-3 parts of cobalt sulfate. The micro-bacterial spore powder is composed of bacillus laterosporus and bacillus subtilis according to the weight ratio of 1:1-3. The crop straw organic fertilizer achieves effective utilization of wastes, is free of environment pollution, is simple in preparation method, is low in cost, can achieve stable and high production of crops and also effectively prevent plant diseases and insect pests, and has great economic significance of agricultural development.

The invention relates to an autoslack remigration pearlgel water plugging control agent which belongs to oil-field injection well water plugging control agent. The chemical water plugging control agent applied to effectively control the contained water when the oil field enters the middle-late phase, has come into the phase of large-dose deep water plugging control. The performance of gel deep water-plugging control agent of chromium gel / complex-ion polymer / resin used in present technology is more excellent than common polyacrylamides gel and acrylamide monomer gel, but the lower remigration, high-deformability and delayed crosslinking can not satify the requirements, so the invention obtains the glue by adopting salt resistance polymer, temperature-resistance polypropeneamino solution with concentration of 0.05-0.4 %, 0.02-0.2 % flocculant, 0.2-0.8 % modified mylar crosslinker, and 0.01-0.1 % cellulose ether disperser, with 60-90 DEG reaction temperature of the prepared solution and 7.2-8.0 of pH value. The gel can be remigrated, have properties of dilatability, high viscoelasticity and delayed crosslinking, and the intensity can be adjusted. The said glue can form gel when injected into the well for 5-7 days, then the gel breaks up after 30 days and remigrates to the deep ground layer to plug the ground layer.

The invention provides a green and health care compound feed for penaeus vannamei. The compound feed comprises fish meal, shrimp shell powder, cuttlefish meal, soybean meal, cottonseed protein, flour, fish oil, phospholipid oil, choline chloride, monocalcium phosphate, table salt, multivitamins, multiple minerals, an antioxidant, a mildew preventive, sodium alginate and bacillus natto. The compound feed is balanced in nutrition and good in palatability and digestibility, and non-specific immune responses of penaeus vannamei can be improved, so that the using amount of antibiotics and disinfectants is reduced, and the aquaculture water environment is improved and maintained.

The invention relates to an aerobic granular sludge culture method. The aerobic granular sludge culture method comprises the following steps of 1, inoculating a sequencing batch reactor with activated sludge, 2, adjusting a pH value of petrochemical wastewater to be treated by sulfuric acid and pumping the petrochemical wastewater with an adjusted pH value into the reactor, 3, carrying out aeration by an aeration device laid on the bottom of the reactor so that the activated sludge and the petrochemical wastewater are mixed and undergo a full reaction, 4, stopping aeration and carrying standing for sludge-water separation, and 5, discharging a certain amount of water by a water outlet of the reactor and periodically repeating the steps of 2 to 5 in the reactor. The aerobic granular sludge culture method utilizes the petrochemical wastewater to carry out aerobic granular sludge culture. The cultured aerobic granular sludge has salt resistance, impact resistance and high-density organic load resistance, can be directly used for treatment on high-salt, high-COD and strong basic petrochemical wastewater, solves the bottleneck problem of use of aerobic granular sludge in petrochemical wastewater treatment and further widens an aerobic granular sludge technology application scope.

The invention discloses a novel emulsion organic resin selective plugging agent, which comprises the following components: polyacrylamide, liquid organic resin, surfactant and curing agent. The novel emulsion organic resin selective plugging agent has the characteristics of temperature resistance, salt tolerance, stable emulsion system and good selective plugging performance, and solves the problems that the conventional plugging agent has poor selectivity and damages the stratum. The water plugging rate of the selective plugging agent is more than 90 percent; the oil plugging rate is less than 20 percent; the temperature resistance reaches 150 DEG C; the highest mineralization tolerance (based on sodium chloride) is 40,000 mg / L (seawater is taken as liquid preparation basis); and the suspension stabilizing time is more than 96 hours.

The invention provides a functional desmosome profile control agent and a preparation method and application thereof.The functional desmosome profile control agent is prepared from, by weight, 0.5%-11% of functional desmosome profile control agent particles, 0.1%-1% of guanidine gum and the balance water, wherein the total weight of the functional desmosome profile control agent is 100%, the functional desmosome profile control agent particles comprise inner cores, thermal swelling crosslinking resin films and semi-permeable protective films, the surfaces of the inner cores are wrapped by the thermal swelling crosslinking resin films, and the surfaces of the thermal swelling crosslinking resin films are wrapped by the semi-permeable protective films.The invention further provides the preparation method of the functional desmosome profile control agent and application of the functional desmosome profile control agent in oil well deep profile control.The functional desmosome profile control agent has the characteristics of temperature resisting, salt resisting, swelling delaying, crosslinking under heating and the like and is a novel profile control agent which is convenient to construct and easy to operate.

The invention relates to a microemulsion system and a preparation method thereof, in particular to a polyacrylamide microsphere system and a preparation method and application thereof. The microspheresystem is prepared through an emulsion polymerization reaction under the action of a composite initiator. The emulsion system comprises the following components in percentage by mass: 10%-60% of a monomer, 0.1%-3% of an organic salt, 3%-20% of an emulsifier, 0.01%-2% of a co-emulsifier, 0.01%-1% of a cross-linking agent, 0.001%-0.5% of an initiator, 0.001%-1% of a polymerization auxiliary agent,10%-70% of deionized water and 10%-50% of a non-polar solvent. The polymer microsphere system is used as an interface enhancer for emulsion flooding, can effectively improve the expansion modulus andshear modulus of an emulsion interface, and enhances emulsion stability; and after compounding polymer microspheres and a surfactant, a very good fluidity control effect is obtained and the profile control and flooding capacity of emulsion flooding is improved.

The invention discloses coated sand for sand prevention in an oil well and a preparation method of coated sand. The coated sand comprises A-type coated sand and B-type coated sand and is characterized in that the A-type coated sand is obtained by wrapping quartz sand with organosilicon-modified epoxy resin, a ketimine curing agent and external isolating agent hydroxy methyl cellulose in sequence; B-type coated sand is obtained by wrapping the surface of the quartz sand with cycloaliphatic epoxide resin, an amine curing agent and external isolating agent hydroxy methyl cellulose in sequence. The coated sand disclosed by the invention comprises the A-type coated sand and B-type coated sand, and a co-synergistic effect is generated after the A-type coated sand and the B-type coated sand are mixed, so that the requirements for low-temperature curing and high-temperature mining are met simultaneously. The coated sand disclosed by the invention meets the actual application requirements, gives consideration to low-temperature curing (a minimum temperature of 40 DEG C) to form higher strength, simultaneously is good in permeability, can stably work in a high temperature-resistant environment (about 280 DEG C), is wide in research and development scope of application, can be suitable for not only heavy oil wells, but also middle and low-temperature oil wells and water wells and is lower in comprehensive cost.

The invention provides a quaternary ammonium salt type Gemini surface active agent and preparation, a product and application thereof. The surface active agent is shown as the formula (I), and please see the formula (I) in the description, wherein R1 is a saturated or unsaturated alkyl group with the main chain carbon atom number being 16-26, or a saturated or unsaturated alkyl group with the main chain carbon atom number being 16-26 and containing an amide group; R2 is methyl or ethyl or ethoxyl; R3 is selected from one of ethylidene; X is chlorine or bromine. According to the synthesized Gemini surface active agent, the highest temperature resisted by the surface active agent can reach 160 DEG C, and the temperature resistance is better than that of an existing conventional dimeric surface active agent.

The invention discloses a comprehensive utilization method for sludge generated in an ASP flooding sewage treatment process, comprising the following steps of: adding inorganic acid in the sludge generated in the ASP flooding sewage treatment process, stirring and filtering, wherein the filtrate from which little crude oil is recycled can continue to serve as coagulant; and then, drying sludge residue, crushing the dried residue to have needed granularity, and then using the crushed material as raw material for preparing swellable particle profile control agent. Mass ratio of main reactants for preparing the swellable particle profile control agent is as follows: acrylic amide: acrylic acid: the sludge: bentonite: 2% methylenebiacrylamide: 3% persulfate = 10-25: 2-4: 5-12: 5-12: 0.3-1.0: 0.3-1.0; by the comprehensive utilization of the sludge generated in the ASP flooding sewage treatment process, the harmless and resource-oriented treatment on the sludge generated by the ASP flooding is implemented, the obtained coagulant can be used for the ASP flooding sewage treatment, and the prepared swellable particle profile control agent has the characteristics of excellent temperature tolerance, salinity tolerance, suspension property and expansibility, and the like.

The invention provides a composition for water shutoff and profile control, a water-shutoff profile-control agent containing same and preparation methods of the composition and the agent. The composition for water shutoff and profile control comprises the raw materials in percents by weight: 3-4% of a starch matrix, 6-7% of acrylamide, 0.4-0.8% of a composite initiator, 0.8-1.0% of sodium hydroxide and the balance water. The preparation method of the composition for water shutoff and profile control comprises: polymerizing starch matrix and acrylamide under the effect of the composite initiator, and hydrolyzing the obtained polymer under the effect of sodium hydroxide to obtain the composition for water shutoff and profile control. The water-shutoff profile-control agent comprises the raw materials: the composition for water shutoff and profile control and phenolic resin. The preparation method of the water-shutoff profile-control agent comprises: uniformly mixing the composition for water shutoff and profile control and phenolic resin and reacting to obtain the water-shutoff profile-control agent. The composition and the water-shutoff profile-control agent containing the composition have the characteristics of salt tolerance, heatproofness, no environmental pollution and the like.

The invention discloses a loess slope vegetation planting guarantee PVC board structure system. The loess slope vegetation planting guarantee PVC board structure system comprises vegetation planting guarantee PVC board structures vertically driven into a step structure face and a slope surface structure face of a loess slope, multiple soil fixation grids embedded into the vegetation planting guarantee PVC board structures, and vegetation communities formed by vegetation planted in the soil fixation grids. Each vegetation planting guarantee PVC board structure comprises multiple cross-shaped connecting components, multiple middle connecting components and multiple anchor rod mechanisms. The soil fixation grids are rectangular masonry grids formed by connecting left half masonry grids and right half masonry grids which are integrally formed in a butt joint mode. The vegetation communities comprise the step vegetation communities and the slope surface vegetation communities. The invention further discloses a construction method of the loess region slope vegetation planting guarantee PVC board structure system. The loess region slope vegetation planting guarantee PVC board structure system and the construction method are convenient to implement and low in cost, and the method is simple in step, low in engineering manufacturing cost, environmentally friendly, high in practicality and good in application prospect.

The invention relates to a fatty amine polyoxyethylene ether diethyl disulfonate surfactant and a preparation method thereof. The surfactant has the structure shown in the formula (I) (which is as shown in the description), wherein M refers to alkali metal ions, R refers to C12-C18 alkyl radical, m and n refer to adduct numbers of ethoxy groups, and the sum of m and n ranges from 2 to 10. According to the surfactant, oil-water interfacial tension can be reduced to be ultra-low under the conditions of high temperature, high salinity and high content of divalent metal ions, and with the excellent performance, the surfactant can be used for displacement of oil of a harsh reservoir under high temperature, high salinity and high hardness. The synthetic method is simple, short in technical process and mild in reaction conditions, and is suitable for scale production.

The invention discloses a two-in-one combination for shampooing and bathing for children. The combination consists of deionized water, a tender surfactant, a thickener, a neutralizer, a conditioner, an antiseptic substance and essence, wherein the tender surfactant consists of potassium lauryl phosphate, cocamidopropyl hydroxy betaine, coco-glucoside hydroxypropyl sodium sulfonate and ricinoleamidopropyltrimethyl ammonium chloride. The two-in-one combination is a clear and weakly acidic formula, and produced foams are soft, smooth and easy to wash; the two-in-one combination is rich in olive oil and oat and can be used for deeply moistening the skin of a user so as to re-nourish the skin; the two-in-one combination is not oily, has no stimulation, and can be used for effectively moistening the tender skin of a baby. According to the invention, the tenderest and safest surfactant and the tenderest and safest neutralizer are adopted, so that the safety of the two-in-one combination in children products is ensured; the tenderest antiseptic substance is adopted, so that the tenderness and the safety of the product are ensured at the utmost.

The invention discloses lactobacillus fermentum ZS40, which has a prevention effect on colitis, and the preservation number of the lactobacillus fermentum ZS40 is CGMCC NO.18226. The strain has high gastric acid resistance, and the survival rate of the strain treated by artificial gastric juice with the pH value of 3.0 for 3 h reaches 79.32%; and in 0.30% cholate, the growth efficiency of the strain reaches 15.31% of that of cholate-free culture. The research finds that the strain not only can inhibit mouse colon shortening, colon injury, intestinal wall thickening and other phenomena, but also can increase T-SOD and CAT activity, reduce MPO and MDA contents, regulate balance imbalance of pro-inflammatory cytokines and anti-inflammatory cytokines, and inhibit activation of NF-kappa B and MAPK signal channels so as to better relieve inflammation. In conclusion, the strain can effectively relieve mouse symptoms of colitis and can be used for preventing and treating colitis.

The invention belongs to the technical field of microorganism engineering, and in particular relates to apophysomycesspartina as well as an acid-producing fermentation method and application thereof. The apophysomycesspartina SM-1 is separated and purified from marine salina, and is identified, through morphology and molecular biology such as 18SrDNA, 28SrDNA, ITS and the like, to be a new species of mucoraceae apophysomyces, named as apophysomycesspartina; the apophysomycesspartina is preserved in China General Microbiological Culture Collection Center by a preservation number of CGMCC No.7717 on June 19, 2013. The apophysomycesspartina is applicable to saline soil improvement as well as cultivation and plantation of halophyte.

The invention discloses nano-silica modified geopolymer anticorrosive mortar and a preparation method thereof. The anticorrosive mortar comprises the following components: fly ash, metakaolin, modified sodium water glass, nano silica, a water-borne epoxy resin emulsion, a water-borne epoxy curing agent, hard basalt staple fibers, polyvinyl alcohol fibers, a polycarboxylate superplasticizer, an expanding agent, quartz sand and water. The nano-silica modified geopolymer anticorrosive mortar and the preparation method thereof provided by the invention have the performance characteristics of water resistance, permeability resistance, high strength, crack resistance, acid resistance, salt and alkali corrosion resistance, high cohesiveness and the like; and the nano-silica modified geopolymer anticorrosive mortar can be used for waterproof, crack-resistant and corrosion-resistant hydrological engineering such as foundation engineering facades in saline-alkali areas, piers and dams, ports and piers, building outer walls and roofs in acid rain areas and the like.

The invention provides a plugging resin system and application thereof. The plugging resin system is obtained by a reaction of a component A and a component B, the mass ratio of the component A to thecomponent B is 1: 1 to 3: 2, the component A at least comprises epoxy resin, and the component B at least comprises an epoxy resin curing agent. Epoxy resin and a curing agent are mixed and stirred according to different proportions, the mixture is pumped into a casing leakage breaking section, the resin and the curing agent are subjected to addition polymerization reaction within specified timeand under the condition of proper formation temperature to generate a cured product of a net structure, and the purpose of plugging is achieved. And the gelling time can be controlled by the dosages of the components A and B. The compressive strength is greater than 80 MPa, and the chemical plugging construction requirements of the casing damage well are met. According to the plugging resin system, the compressive strength is met, meanwhile, the resin hardness is reduced, the resin toughness is improved, and the resin drillability is improved. And the plug drilling speed can reach 2.5 m / h under the same condition of the plug drilling process, so that the plug drilling time is greatly saved.

The invention relates to a preparation method for activated aluminum oxide by using aluminum industry surface treatment solid waste. The preparation method of activated aluminum oxide comprises the following steps: 1) washing the aluminum material solid waste with water, and removing impurities; 2) adding a diluted hydrochloric acid solution and a triethanolamine solution to the aluminum material solid waste, adjusting the pH value, and making aluminum oxide particles recrystallized; 3) drying the aluminum material solid waste, crushing, adding a surfactant, and grinding into micron grade with a colloid mill, to obtain a material A; 4) mixing evenly the material A with cellulose acetate and a pore-enlarging agent, and placing the mixture in a disc ball rolling machine to prepare spherical particles; 5) carrying out hydrothermal treatment on the spherical particles, and washing with low-molecular alcohol, to obtain a material B; and 6) placing the material B in a drying oven, drying, then placing the obtained material in a muffle furnace, calcining, naturally cooling to room temperature, and thus obtaining the product. The prepared activated aluminum oxide has the advantages of large specific surface area and pore volume, reasonable distribution of pore diameter, and good crushing strength and catalytic activity.

The invention relates to a method for reducing the content of nitrosamine in flue-cured tobacco. Tobacco is planted by grafting with solanum torvum swartz as a rootstock and tobacco as a scion, and the tobacco curing technology is adjusted. Therefore, the goal of reducing the content of nitrosamine in flue-cured tobacco is achieved, the harm of tobacco to human health is reduced, and the quality of tobacco is improved.

The invention discloses a method for repairing and planting sesbania cannabinain in coastal mud flat of Jiangsu province. The method comprises the following steps: 1, selecting a planting area, and establishing an irrigation facility; 2, performing soil preparation after autumn; 3, pumping water for irrigation before freezing in winter; 4, draining salt water to keep fresh water after ice layers thaw in spring; 5, sowing seeds of sesbania cannabinain; 6, carrying out management in a sesbania cannabinain growing period; 7, pressing salt into soil by using rainfall and water storage in a sesbania cannabinain water-storage field; and 8, carrying out harvesting. The method disclosed by the invention aims at the geographic and climate characteristics of the coastal mud flat of Jiangsu province,and local resources are fully utilized, so that saline-alkali soil in the mud flat can be effectively repaired, and the sesbania cannabinain can be produced in an economic, environment-friendly, high-efficiency and high-yield mode. The method provided by the invention is a saline-alkali soil improvement mode with ecological, economic and social benefits, and a positive promotion effect is achieved on improvement of saline-alkali soil in the mud flat and the sustainable development of agriculture.

The invention discloses an actinomycete strain Microbacterium testaceum SCAUT009 and application thereof, the actinomycete strain is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 61508. The Microbacterium testaceum SCAUT009 separated and screened by the invention has growth promoting capabilities of generating IAA (Indoleacetic Acid) and siderophores, dissolving phosphorus, degrading cellulose and chitin and the like, and also has stress resistance functions of salt resistance, acid and alkali resistance, drought resistance and the like, the effect of promoting the growth of the liangshan vicia villosa can be obtained by applying the Microbacterium testaceum SCAUT009 to the liangshan vicia villosa, and the survival rate of the liangshan vicia villosa can be increased. The yield of forage grass is increased, meanwhile, the soil quality is improved, the tobacco planting soil is improved, and the method has good application potential in agricultural production.

The invention provides a nylon / cotton mixture fabric dyeing method capable of preventing nylon color staining. The dyeing method at least comprises the following steps of 1, dyeing treatment and 2, soaping, wherein a dye working solution obtained in the first step is prepared from a dye retarding agent, a reactive dye, anhydrous sodium sulphate and sodium carbonate; a soaping agent for staining resistance is adopted in the second step for soaping treatment, wherein the dye retarding agent DM-2922 is selected and is a surface active agent compound, and a polymer DM-1522 of the special structure is selected as the soaping agent for staining resistance. According to the method, a nylon dye retarding agent DM-2922 and reactive dye one bath process is adopted for performing dying on the nylon-cotton mixture fabric according to a traditional reactive dyeing technology, nylon color staining is can be effectively prevented, the soaping agent for staining resistance is used for soaping so as to further reduce color staining of nylon in the nylon / cotton mixture fabric, and meanwhile the cotton color yield is not affected.