190results about How to "Safety and environmental protection" patented technology

The invention provides interior wall adornment leather and a preparation method. The interior wall adornment leather comprises base fabric, a foaming layer and a surface layer, wherein an adhesive layer is arranged between the base fabric and the foaming layer; the foaming layer contains foamed water-borne polyurethane resin; the surface layer contains inflaming retardant water-borne polyurethane resin; and the adhesive layer contains adhesive water-borne polyurethane resin. The interior wall adornment leather not only has the advantages of traditional wallpaper sound insulation, heat preservation, gorgeousness and easy adornment, but also has the advantages of safety, environment protection, endurance, ageing resistance and fame resistance, which are incomparable with the traditional wallpaper, and can effectively overcome the defects that the traditional wallpaper is easy to raise margins, does not resist dirt and damp, has poor handfeel, and can not be repaired after wrinkling and the like.

Aqueous dispersible fine emulsion of complete acrylic ester copolymer as oil- and water-resisting agent is prepared by: preparing complete alkyl copolymerized monomer fine emulsion dispersed uniformly, and then polymerizing without organic solvent and emulsifying to aid it. It is stable for restore or dilution, and can be used for substrate materials of fabrics, leathers or paper as waterproof and oil-proof finishing agent.

The invention discloses a phenolate lignin tackiness agent and a preparing method of the phenolate lignin tackiness agent. Under the normal pressure, phenol serves as a phenolate reagent, lignin and master and slave acid catalysts are added at a certain temperature at four to five times in sequence, the temperature is rose to 100 DEG C-130 DEG C, heat preservation reaction is carried out, cooling is carried out, basic catalysts are added, after the heat preservation reaction is carried out for a certain time, aldehydes materials are added at four times, heat preservation reaction is carried out at 80 DEG C-95 DEG C until the viscosity meets the requirement, water is added to adjust the solid content, and meanwhile rapid cooling is carried to enable the temperature to be lower than 50 DEG C, discharging is carried out, and then the phenolate lignin tackiness agent is obtained. Compared with a traditional phenolate lignin tackiness agent, the prepared phenolate lignin tackiness agent has the advantages that the replacement amount of the lignin to the phenol is as high as 50%-80%, and the cost can be reduced by about 40%. The phenolate lignin tackiness agent prepared with the method is safe, environmentally friendly, good in mobility and good in storage stability. Bamboo / wood plywood manufactured with the phenolate lignin tackiness agent has the good mechanics performance and the good hydrolytic resistance.

The invention discloses a treatment method for antibacterial and anti-ultraviolet cotton fabrics. The treatment method comprises the following steps: step 1, soaking the cotton fabrics with a nonionic surfactant; step 2, modifying the cotton fabrics with chitosan quaternary ammonium salt; step 3, dipping the cotton fabrics with antibacterial finishing liquid prepared by mixing 5-15 parts of a natural antibacterial agent composed of extracts of grape seeds, persimmon leaves, ginkgo leaves and licorice roots, 0.3-1 part of polyoxyethylene-40 hydrogenated castor oil and 1000 parts of water; step 4, soaking the cotton fabrics in a mixed aqueous solution containing 0.001-0.005mol / L of silver nitrate or silver sulfate or silver acetate and 1-3 g / L of soluble starch or hydroxyethyl cellulose to prepare the nano-silver attached antibacterial cotton fabrics. The prepared cotton fabrics not only have good antibacterial performance and anti-ultraviolet performance, but also have performance of resisting oxidation and scavenging free radicals, and have improved anti-wrinkle performance and good washing durability.

The present invention discloses a heat-preserving material for an outer wall which comprises the following raw materials in parts by weight: 45-55 parts of coal ash silicate cement, 15-20 parts of white floating beads, 1.5-2 parts of nano TiO2, 0.5-1.2 parts of ceramic cotton fiber, 5-10 parts of aluminium silicate fiber cotton, 0.2-0.6 part of a water repellent, 3-7 parts of an elastic emulsion, 6-9 parts of swelled vitrified microbead heat-preserving slurry, 3.5-4.5 parts of polypropylene fiber, 2-5 parts of an inorganic nano coating, 0.05-0.1 part of foam filaments, 0.05-0.1 part of bamboo fiber and 10-15 parts of a flame retardant. The heat-preserving material for the outer wall has the characteristics of good heat preservation, thermal insulation, sound insulation, self-cleaning, ray resistance, water resistance, energy conservation and environment protection and high strength.

The invention discloses a safe and environment-friendly waterborne antibacterial adhesive with high performance and a preparation method thereof. The method comprises the following steps: enabling polymer polyol, a micromolecular hydrophilic chain extender, isocyanate and a solvent to make polymerization reaction in the presence of a catalyst, thus obtaining a polyurethane prepolymer; adding a neutralizer into the polyurethane prepolymer for neutralizing, and then adding water for emulsification, thus obtaining a polyurethane ionomer; adding dispersion liquid of a silver-carrying nano-clay material into the obtained polyurethane ionomer, regulating a pH value to neutral, performing shearing dispersion under the action of a high-speed dispersion machine, and removing the solvent to obtain the waterborne polyurethane antibacterial adhesive with high performance. The waterborne polyurethane is adopted as a substrate, so damage caused by a volatile organic compound (VOC) can be effectivelyavoided to obtain the safe and environment-friendly waterborne polyurethane adhesive with high performance, and the adhesive has the advantages of being safe and environmentally friendly, and free ofVOC; the mechanical property, thermal stability and antibacterial property of the obtained material far exceed that of similar modified waterborne polyurethane.

The invention provides a cured composite material and a sand-fixing method for plant greening, a functional water soluble polyurethane composite cured material is prepared by composite reaction of a water soluble polyurethane resin chemical cured material (W-OH) and an ultraviolet degradation control agent, thereby greatly improving ultraviolet degradation resistance capability of the composite cured material, and degradation period of the composite cured material can be controlled. The ultraviolet degradation control agent comprises benzotriazole, benzophenone ultraviolet ray absorbent, and hindered amine and hindered phenol ultraviolet ray stabilizer. The cured composite material is sprayed to a sand surface with a spread plant greening composition, and a porous structured bonding layer is quickly formed on the desert surface, the bonding layer is advantaged by better air permeability, water conservation, and fertilizer-keeping characteristics, suitability for plant growth, realization of controlling more than 30 years of degradation period, and gradual realization of ecological environment remediation during sand-fixing.

The invention discloses a water-based electrothermal coating and a preparation method of the water-based electrothermal coating. The coating comprises a water-based dispersion containing a matrix resin, nickel coated carbon nanotube composite powder and auxiliary materials which can be selectively added, wherein the composite powder comprises a carbon nanotube and nickel coated on the carbon nanotube. The preparation method of the water-based electrothermal coating comprises the following steps: the surface of a carboxylated carbon nanotube is subjected to the adsorption of nickel ions, and the nickel ions are reduced to a nickel elementary substance to be served as a nucleation core, chemical nickel-plating is carried out to form the nickel coated carbon nanotube composite powder, and then the composite powder is mixed with the water-based dispersion containing the matrix resin and ground to obtain a composite dispersion paste, and the composite dispersion paste is further compounded with the other auxiliaries to prepare the electrothermal coating. According to the invention, the contact resistance of the original carbon nanotube network can be greatly reduced, so that the coating has the advantages of being low in resistance, high in electrothermal conversion efficiency and the like, is suitable for being used as various electrothermal coatings driven by low voltage, and further has convenience in construction, safety and environmental protection and wide application prospects.

The invention discloses a water-based plastic track and a preparation method thereof. The water-based plastic track comprises an elastic layer and an antiskid layer, wherein the elastic layer is formed by mixing a polymer emulsion and white cement at mass ratio of 1.5-1.75, then adding waste rubber crumbs to the mixture, uniformly stirring the materials and then paving and curing the obtained mixture; the antiskid layer is prepared from a polymer emulsion, white cement, pigments and EPDM (Ethylene-Propylene-Diene Monomer) granules. The water-based plastic track is simple in process and low in cost, and not only has elasticity and skid resistance of a polyurethane rubber track, but also has the advantages of being non-toxic, harmless, excellent in performance, safe, environmentally-friendly and the like.

The invention discloses a safe and environment-friendly electric heating tile. The safe and environment-friendly electric heating tile comprises a tile body, a heat generating layer and a heat insulating layer; the heat generating layer and the heat insulating layer are sequentially arranged downwards from the back side of the tile body; the heat generating layer is connected with the tile body and the heat insulating layer with an adhesive. The safe and environment-friendly electric heating tile has the advantages of being safe, environmentally friendly, efficient, capable of saving energy, attractive, healthy, durable and the like; besides, the safe and environment-friendly electric heating tile is easy and fast to install, and is longer in service life, easy to maintain and convenient to replace as a common tile.

The invention relates to the technical filed of polymer materials, and concretely relates to a biomass nanocrystal coated polyolefin lithium ion battery diaphragm and a production method thereof. The diaphragm comprises a polyolefin porous membrane and a biomass nanocrystal coating layer coated at one side or two sides of the polyolefin porous membrane, so the diaphragm greatly improves the melt fracture temperature and improves the safety of lithium ion batteries.

The invention discloses an antibacterial and antiviral inorganic ceramic interior wall coating and a preparation method thereof. The interior wall coating includes a primer and a finishing paint, wherein the primer comprises the following components in percentage by weight, on the basis of 100%: 10-15% of potassium silicate, 10-20% of silica sol, 5-10% of acrylic emulsion, 35-45% of filler, 1-2% of defoaming agent and the balance of deionized water; and the finishing paint comprises the following components in percentage by weight, on the basis of 100%: 15 to 20 percent of sol, 10 to 15 percent of methyltrimethoxysilane, 15 to 20 percent of silicone acrylic emulsion, 0.5 to 0.8 percent of 20 percent formic acid solution, 0.5 to 1 percent of graphene oxide, 8 to 10 percent of nano aluminum oxide, 12 to 15 percent of inorganic pigment, 0.5 to 1 percent of p-tert-butylcatechol, 2 to 3 percent of methanol and the balance of deionized water. The coating is safe and environment-friendly, has excellent water resistance, air permeability, water impermeability and excellent mildew-proof effect, dust is not easy to fall on a wall veneer, stains are not easy to adhere to the wall veneer, the coating is easy to clean, the scrubbing resistance can reach more than 100,000 times, and the coating has lasting antibacterial and antiviral capabilities.

The invention relates to multifunctional safety and environment-friendly type skid-mounted fuel-servicing equipment. The equipment comprises a sledge body pedestal, functional facilities and a ceiling. Functional facilities are arranged on the sledge body pedestal; the functional facilities comprise an oiling machine, a vacuum dust-absorbing system, an automobile tyres air-ejecting system, an automatic vending system, a bank automatic teller and deposit system that being arranged in parallel, and an oil tank, an oil gas recovery and processing apparatus, an auxiliary system, an automatic monitoring system, an automatic control system and a black box are arranged at the rear of the functional facilities; According to the invention, an integrated service of oil storage, oiling, automatic depositing and withdrawing money, automatic selling goods, air-ejecting of automobile tyres, dust-absorbing and cleaning of the automobile and the like.

The invention discloses a laser focus control system, an application of the laser focus control system and a laser cleaning head. The laser focus control system comprises a laser distance measuring meter, a field lens and a calculation and display unit, wherein a distance measuring laser beam sent by the laser distance measuring meter passes through the field lens, then is irradiated onto the surface of a workpiece and measures distance, the laser distance measuring meter is electrically connected with the calculation and display unit, the laser distance measuring meter and the calculation and display unit input a distance measuring result, and the calculation and display unit outputs at least one signal. The laser focus control system can monitor the defocusing distance in real time, is applicable to the field of laser cleaning, can achieve non-contact laser cleaning, particularly cleaning in narrow spaces, and can improve the cleaning quality and efficiency.

The invention relates to a tissue paper compounding hot melt adhesive which is composed of, by mass, 20-45% of APAO resin, 30-60% of tackifying resin, 2-15% of a plasticizer, 1-15% of montan wax and 0.2-0.8% of an antioxidant. The APAO resin has a propylene content of 60-75%, a glass transition temperature of -40 DEG C to -20 DEG C, and a viscosity of 3000-10000cps under a temperature of 190 DEG C. The tackifying resin is hydrogenated petroleum resin with a softening point of 60-90 DEG C. the tissue paper compounding hot melt adhesive provided by the invention does not contain water, such that no water penetrates into the tissue paper during a tissue paper production process. Therefore, tissue paper performances such as hand feeling, strength and comfortableness can be ensured, and paper quality decrease caused by water penetration can be avoided. The adhesive also has the advantages of high curing speed, excellent strippability, long exposure time, good fluidity, good safety, good environment friendliness, no toxicity, and no odor. The adhesive has a good application prospect.

The invention discloses a method for preparing nano-TiO2 nylon 66 resin and fibre having an anti-ultraviolet function, belonging to the technical field of fibre and textiles. The method disclosed by the invention comprises the following steps: injecting TiO2 suspension into a polymer melt at the outlet of a flash evaporation pump in the condensation polymerization process of nylon 66 at first, and then, carrying out post condensation polymerization of the polymer melt injected with the TiO2 suspension so as to obtain nano-TiO2 nylon 66 resin; and then, carrying out melt spinning of the nano-TiO2 nylon 66 resin so as to obtain nano-TiO2 nylon 66 fibre. The nylon 66 fibre having excellent properties and the anti-ultraviolet protection function can be manufactured from the nylon 66 resin manufactured by the invention through a POY-DTY (Polyester Pre-Oriented Yarn-Draw Texturing Yarn) spinning technology; and the fibre can be processed into high-quality clothes or costume materials having gentle lustre, soft hand feeling and comfort, good air permeability, abrasion resistance and easy rinsing property and having anti-ultraviolet and nursing functions.

A related green environment-friendly leatherware cleaning agent comprises the main active compositions in parts by weight: 6-10 parts of sodium fatty alcohol polyoxyethylene ether carboxylate, 5-9 parts of fatty acid methyl ester ethoxylates, 6-10 parts of alkylethoxyglucoside, 2-6 parts of glycerin, 0.5-3 parts of diatomite, 0.1-1.5 parts of amino silicone oil, 5-10 parts of gleditsia sinensis Lam extraction liquid, 1-10 parts of propylene glycol, 0.1-1 part of sodium lactate, 0.1-1 part of a chelating agent, and 0.01-1 part of a pH conditioning agent. The invention also relates to a preparation method of the leatherware cleaning agent. According to the leatherware cleaning agent, majority of the raw materials are extracted from animals and plants, the leatherware cleaning agent is good in biodegradability, does not contain benzene and other easily-volatile toxic solvents, is green and friendly to environment. The product is mild, good in wetabiilty and strong in leather affinity; and the leatehrware cleaning agent contains diatomite, possesses friction effect when being used to clean leatherware, is strong in detersive power, does not damage leather, and possesses advantages of being efficient for washing, convenient to use, safe and the like.

The invention discloses compound tea tree essential oil with sterilization and disinfection effects and a preparation method of the compound tea tree essential oil. The compound tea tree essential oil is prepared from the following raw materials in parts by mass: 5-12 parts of wild chrysanthemum flowers, 9-16 parts of fructus forsythia, 4-9 parts of scabrous mosla herb, 8-12 parts of lithospermum, 9-15 parts of Chinese angelica, 8-12 parts of croton, 5-10 parts of moutan bark and an appropriate amount of German chamomile essential oil, lavender essential oil, VE, rose fruit oil and tea tree essential oil. According to the compound tea tree essential oil, plant resources are sufficiently utilized, and traditional Chinese medicine extract is organically combined with the plant essential oil. Compared with chemical germicide and disinfectant, the compound tea tree essential oil is safe, environmentally friendly, pleasant in smell, and the like. A product prepared by the compound tea tree essential oil is convenient to use and wide in applicability, can be applied to sterilizing and disinfecting skin on different parts and an oral cavity of a person, and can also be used for sterilizing and disinfecting air and apparatuses.

The invention provides an environment-friendly plastic runway material and a preparation method thereof; the environment-friendly plastic runway material is made from, by weight, component A, component B and a curing agent; a mass ratio of the component A to the component B is 1:(3-5); the mass of the curing agent is 0.1-0.5% of the mass sum of the component A and component B, wherein the component A is made mainly from polyether diol, liquefied MDI, MDI and chloro-substituted methyl palmitoleate, and the component B is made mainly from polyether diol, polyether triol, MOCA, chloro-substituted methyl palmitoleate, iron chloride red, and talcum. The environment-friendly plastic runway material has the advantages of suitable elasticity, high friction, good mechanical properties, zero toxin and odor, safety and environmental friendliness; the preparation method of the environment-friendly plastic runway material has the advantages of good operational simplicity, good convenience of production and the like.

The invention relates to a plasma air disinfection and sterilization treatment device which comprises a shell, wherein an air inlet and an air outlet are formed in the shell, an air channel is formedin the shell, and a plasma generation assembly and a collection, sterilization and disinfection device are sequentially arranged in the air channel from the air inlet to the air outlet; the air treatment device further comprises a control assembly, an electrical assembly and a fan assembly. The plasma generation assembly is a low-temperature plasma generation device; the collecting, sterilizing and disinfecting device is a back corona discharge device; the electrical assembly provides electric energy for the air treatment device; the fan assembly provides power, and guides air to enter from the air inlet and sequentially pass through the plasma generating assembly and the collecting, sterilizing and disinfecting device to the air outlet. The low-temperature plasma generation device is combined with the collecting device with the sterilization and disinfection effects for the first time, and the excellent microorganism killing effect is achieved. And a mode-adjusted discharge mode is adopted, so that energy consumption is reduced, and side effects caused by ozone are reduced.

The invention provides a cleaning agent used for a high-wax crude oil volume tube, a preparation method and a use method, and belongs to the technical field of wax removal. According to the technicalscheme, the cleaning agent is prepared from, by volume, 10-20 parts of solvent, 4-10 parts of co-solvent, 2-8 parts of surface active agent, 2-8 parts of emulsifying agent and 50-90 parts of water. The invention further provides the preparation method and the use method. The cleaning agent has the advantages that the wax dissolving rate of the emulsion type cleaning agent reaches 0.4 g / min or above, the closed-cup flash point is higher than 25 DEG C, the cleaning agent contains neither organic chloride nor carbon disulfide, the wax precipitation on the volume tube can be effectively cleaned, and the cleaning agent is good in safety and stability and especially suitable for wax removal of the high-wax crude oil volume tube.

The invention relates to the technical field of paint for interior decoration, in particular to a water-based two-component coating for rail transit vehicle interiors and a preparation method thereof.The coating comprises a component A and a component B in a weight ratio of 10: 1, wherein the component A comprises water-based hydroxyl acrylic resin, water-based hydroxyl polyurethane hand feelingresin, a water-based hydroxyl organic silicon hand feeling auxiliary agent, pigment and filler, an environment-friendly flame retardant, sand streak wax, extinction powder, a water-based dispersing agent, a water-based wetting agent, a water-based defoamer, a water-based leveling agent, a water-based thickener and water, and the component B comprises water-based polyisocyanate resin and a solvent.The preparation method comprises preparation of the component A and preparation of the component B. The coating provided by the invention adopts a two-component cross-linking curing technology and ismatched with a water-based hydroxyl organic silicon hand feeling auxiliary agent, so that the hand feeling of the coating can be kept stable for a long time, the VOC content and the residual monomeramount are low, formaldehyde, benzene series and the like are not contained, and the coating is suitable for human body contact and is very suitable for interior coating of rail transit vehicles.

The invention discloses a cationic polyacrylate fluoride-free waterproof agent and a preparation method thereof. The cationic polyacrylate fluoride-free waterproof agent is prepared from the followingcomponents in percentage by mass: 5 to 40% of butyl acrylate, 5 to 35% of methyl methacrylate, 0.5 to 5% of long-chain acrylic acid fatty alcohol ester, 0.5 to 4% of a reactive cationic emulsifier and 45 to 75% of deionized water, wherein the sum of the mass amount of the above components is 100%. The preparation method comprises the following steps: step 1, preparing the reactive cationic emulsifier; step 2, preparing a pre-emulsion; and 3, preparing the cationic polyacrylate soap-free emulsion. The cationic polyacrylate fluoride-free waterproof agent contains no PFOS or PFOA and has good waterproofness, the invention further discloses the preparation method of the cationic polyacrylate fluoride-free waterproof agent, the preparation method can be used for preparing the synthetic reaction type cationic emulsifier, and the waterproofness of the fluoride-free waterproof agent is fully improved.

The invention discloses a modified resin composition. The composition is prepared with 35-95% resin matrix, 0-60% additive and 5-15% laser sensitive additive, wherein the laser sensitive additive is preferably made of copper-manganese (iron) and / or copper-manganese (zinc iron). In the preparation process of the modified resin, the laser sensitive additive does not resolve, the resin matrix does not resolve either, non-laser sensitive additive can release copper metallic element to form a active center under the function of a laser, however no poisonous metal generates, and thus the modified resin is safe and environmental. According to the modified resin composition, a preparation method thereof and an application thereof, doping modification technique is applied in the laser sensitive additive for the first time, and thus the performance of a modified resin composition deposited metal film is improved.

The invention discloses a nanofiber material for pork preservation, belonging to the technical field of food engineering and biological nano materials. The nanofiber material is prepared from catechin, copper nitrate and polyvinylpyrrolidone as raw materials. By adopting the nanofiber material disclosed by the invention, the problem that catechin is easily oxidized in practical antibacterial application is solved, and an excellent antibacterial property of the nano material is obtained. The nanofiber material disclosed by the invention has a remarkable inhibitory effect on the putrefying bacteria in the pork. The nanofiber is nontoxic, the raw materials are cheap and easily available, the preservation effect on the pork is obvious, and the nanofiber material has broad application prospects in the fields of food corrosion prevention, food packaging and biological materials.

The invention discloses a p photoresponseive cellulose nanocrystalline / fluorine-containing polyacrylate self-repairing material. A preparation method specifically comprises the following steps: step 1, preparing a Pickering emulsion; wherein uniformly mixing photoresponsive amphiphilic block copolymer graft-modified cellulose nanocrystalline, water and a mixed monomer according to a mass ratio of(0.01-0.03): (2-60): (1-3) to obtain the Pickering emulsion; and 2, preparing the photoresponsive cellulose nanocrystalline / fluorine-containing polyacrylate composite emulsion. The photoresponsive cellulose nanocrystalline / fluorine-containing polyacrylate self-repairing material disclosed by the invention has the characteristic of self-repairing.

The invention discloses an efficient and environment-friendly chromate-free passivation solution and a preparation method thereof. The efficient and environment-friendly chromate-free passivation solution comprises the following components of 35-40 g / L of molybdenum phosphate, 10-20 g / L of sodium vanadate, 8-12 g / L of sodium tungstate, 10-100 g / L of phytic acid, 3-30 g / L of tartaric acid, 5-50 g / L of gallotannic acid, 10-50 g / L of poly trimethyl ethyoxyl modified epoxy resin, 6-8 g / L of corrosion and scale inhibitor, 3-6 g / L of sealant, 10-15 g / L of film-forming agent, 0.5-3 g / L of anti-oxidant or oxidation inhibiter and 3-7 g / L of aluminium triphosphate. Through reasonable formula design, the passivation solution contains no chromium ions of any valence state, and has the characteristics of safety and environment friendliness, meanwhile, the passivation solution has the excellent passivation performance, film forming performance and rust resistance, and comprehensive and efficient corrosion resistance is given to a zinc coating. The characteristic of the low cost is achieved from the formula technology to the preparation technology, and the development and application prospects are wide.

The invention relates to a synthesis method of a damascene metal nanoparticle graphene. The synthesis method comprises the following steps: dissolving glucose, dicyandiamide and a corresponding metal salt in deionized water to obtain a mixed solution of a precursor; evaporating the mixed solution of the precursor to dryness at 75 DEG C, thereby obtaining a white powder solid; calcining under the protection of nitrogen in a calcination temperature range which is controlled in the range of 700-1200 DEG C; and finally, naturally cooling to obtain the damascene metal nanoparticle graphene product, wherein the mass ratio of the dicyandiamide to the glucose is 20: (1-40): 1, and the metal element in the metal salt accounts for 0.01wt%-60wt% of the carbon content in the glucose. Compared with the prior art, the synthesis method is simple in preparation process and only comprises one step of reaction; the synthesis method is outstanding in applicability and almost applicable to all transition elements (including but not limited to Fe, Co, Ni, Mo, Zn and Cu). Besides, the preparation process is green and environment-friendly without any toxic by-products.

The invention discloses a multifunctional printing positioning machine and a production process of the multifunctional printing positioning machine. The multifunctional printing positioning machine comprises a printing machine, a material placing device, a composite hot pressing transfer device, a drying system, a cooling device and a coiling device, wherein one side of the printing machine is sequentially provided with the coiling device, the composite hot pressing transfer device and the material placing device, the drying system is erected on the upper top parts of the printing machine, the coiling device and the composite hot pressing transfer device and is respectively and fixedly connected with the printing machine, the coiling device and the composite hot pressing transfer device, and the top of the coiling device is fixedly connected with the cooling device. The multifunctional printing positioning machine and the production process have the characteristics that the assembly is convenient, the cost is low, the manufactured finished products are diversified, in addition, the color fastness is good, the ventilation performance is good, the three-dimensional effect is high, and safety and environment friendliness are realized.

The invention discloses a pre-harvest treatment method for disease resistance and fresh keeping of mango fruits, which comprises the following steps: step 1: uniformly spraying a mixed disease-resistant fresh-keeping agent on the surfaces of the mango fruits at 1 to 2 months before harvest of the mango fruits, and sheathing the fruits with paper bags; and step 2: after the mongo fruits are harvested, packing with a carton, and storing at 22-28 DEG C. The mixed disease-resistant fresh-keeping agent used in the invention has the characteristics of safety and environmental friendliness. The mango fruits subjected to pre-harvest treatment of the disease-resistant fresh-keeping agent have obviously decreased diseased fruit rate in harvesting, up to 28.7-57.2% compared to the control group, when the mango fruits are stored at 22-28 DEG C for 10 days, the damage by disease is obviously reduced, the disease index of the mango fruits is reduced by 43.0-57.3% compared to the control group, and the commercial fruit ratio is increased to 79.9-109.8% compared to the control group. The pre-harvest treatment method effectively reduces the growth period of the mango fruits and the disease occurrence during room temperature storage period, and is environment-friendly and safe, convenient to operate, and easy to promote and apply.