40results about How to "Guaranteed antimicrobial properties" patented technology

The invention provides a medical packaging material and a preparation method thereof.The preparation method comprises the steps that S100, polypropylene, maleic anhydride grafted co-polypropylene, peroxide and filler are mixed, then melt extrusion and two-way stretching are conducted, and a printing layer is obtained; s200, respectively preparing a barrier layer and a heat sealing layer; and S300, the heat sealing layer, the blocking layer and the printing layer are sequentially stacked from inside to outside, and the packaging material is obtained. Through the preparation method of the packaging material, the prepared packaging material has excellent barrier property and antibacterial property while resisting high temperature, and can meet the requirements of the medical field.

The invention relates to the technical field of glass cup spraying, in particular to spraying equipment for glass cup production and a spraying technology of the spraying equipment. Comprising a base; the sliding plate is connected to the base in a sliding mode, and the sliding plate is connected with a sliding column in a sliding mode; the rotating shell is rotationally connected to the sliding column; the spray head is connected into the rotating shell in a sliding mode, and the sliding column is provided with an electric rotating ring; the first elastic element is arranged between the rotating shell and the spray head; and the limiting block is rotationally connected to the sliding column, and the limiting block is in extrusion fit with the spray head. When the bottom of the glass cup is sprayed to the outlet, the spray head gradually slides outwards along the rotating shell firstly, then the relative position of the spray head and the rotating shell is maintained till the spray head is sprayed to the outlet, the distance from the spray head to the inner wall of the glass cup is always kept consistent, and the spraying uniformity of the spray head to the inner wall of the glass cup is improved; the antibacterial performance of the spherical glass cup is ensured.

The invention relates to the technical field of non-woven fabrics, in particular to a hydrophobic non-woven fabric and a preparation method thereof.The preparation method comprises the steps that perfluorodecanethiol and octavinyl polysilsesquioxane are used as raw materials to react to generate fluorine-containing polysilsesquioxane, then the fluorine-containing polysilsesquioxane is dispersed in an ethanol solution to form a hydrophobic modified solution, and the hydrophobic modified solution is added into the hydrophobic modified solution to prepare the hydrophobic non-woven fabric. Fluorine-containing polysilsesquioxane molecules in the hydrophobic modification solution not only have the organic-inorganic hybridization characteristic of polysilsesquioxane, but also contain hydrophobic groups of perfluorodecanethiol, so that the hydrophobic modification solution has excellent hydrophobic performance, the antibacterial non-woven fabric with the surface coated with silver-loaded chitosan is subjected to impregnation modification, and the antibacterial non-woven fabric with the surface coated with perfluorodecanethiol has excellent antibacterial performance. According to the present invention, with the silver-loaded chitosan, the fluorine-containing polysilsesquioxane molecules can be adsorbed and attached to the surface of the non-woven fabric to form the compact hydrophobic layer, the good antibacterial property of the non-woven fabric can be maintained due to the existence of the silver-loaded chitosan, and the chemical bond formed by the fluorine-containing polysilsesquioxane and the surface of the non-woven fabric is stable so as to achieve the good antibacterial property; the modified non-woven fabric keeps stable hydrophobic performance and antibacterial performance.

The utility model discloses a composite antibacterial polyester filament, belongs to the technical field of textiles, and solves the problems that if the composite antibacterial polyester filament is required to have antibacterial performance from inside to outside, natural fibers are required to be combined together when the composite antibacterial polyester filament is required to be changed into spinning, and for pure physical spinning, the composite antibacterial polyester filament cannot have antibacterial performance inside and outside at present. Comprising a special-shaped section core wire and a plurality of outer wrapping wires, a plurality of spacing bar grooves are formed in the outer ring of the special-shaped section core wire, the spacing bar grooves are filled with a plurality of antibacterial particles, the special-shaped section core wire is arranged in a self-twisting mode, the outer wrapping wires are all arranged on the outer ring of the special-shaped section core wire, and the outer sides of the outer wrapping wires are coated with antibacterial coatings. Antibacterial particles are contained in the spacing bar grooves, openings of the spacing bar grooves are covered with the outer wrapping filaments, the particles are clamped after the special-shaped cross section core filaments are self-twisted, the internal and external antibacterial effect is ensured, natural fibers do not need to be added, and the purity of the polyester filaments is kept.

The invention discloses medical efficient antibacterial silicone rubber and a preparation method thereof, and belongs to the technical field of medical silicone rubber materials.The preparation method comprises the following steps that 1, tannic acid is added into N, N-dimethylformamide and stirred to be uniform, then triethylamine is added, stirring continues to be conducted to be uniform, acryloyl chloride is added under the ice-water bath condition, stirring is conducted for a reaction, and a reaction solution is obtained; performing reduced pressure distillation, centrifugation, washing and vacuum drying to obtain modified tannic acid; step 2, carrying out surface activation treatment on the silicone rubber; step 3, adding the surface-activated silicone rubber and an initiator into acetone, heating and stirring for reaction, filtering and washing, and naturally drying to obtain pretreated silicone rubber; and step 4, mixing the modified tannic acid aqueous solution and the pretreated silicone rubber, and performing ultraviolet light illumination and cleaning to obtain the silicone rubber. The obtained silicone rubber has excellent antibacterial performance, and the preparation method is simple, mild in condition and suitable for large-scale production.

The invention discloses a plant-based antibacterial packaging material and a preparation method thereof, and relates to the technical field of high polymer materials. When the plant-based antibacterial packaging material is prepared, catechinic aldehyde reacts with carboxymethyl chitosan, zinc ions are adsorbed, then 2-methylimidazole is added for in-situ growth of ZIF-8, vanillin is loaded, and antibacterial loaded carboxymethyl chitosan is prepared; the preparation method comprises the following steps: reacting tetramethyl-1, 6-hexamethylenediamine with 1-bromodecane to prepare a quaternary ammonium monomer; the preparation method comprises the following steps: reacting a quaternary ammonium monomer with 1, 6-dibromohexane to prepare a bromine-terminated quaternary ammonium monomer; modifying polyvinyl alcohol by using a bromine-terminated quaternary ammonium monomer to prepare quaternary ammonium modified polyvinyl alcohol; mixing the antibacterial loaded carboxymethyl chitosan, quaternary ammonium modified polyvinyl alcohol, corn straw fiber powder, glycerol and polylactic acid, and performing melt extrusion granulation to obtain the plant-based antibacterial packaging material. The prepared plant-based antibacterial packaging material has the advantages of being antibacterial, antioxidant, degradable, high in mechanical strength and good in barrier property.

The invention belongs to the technical field of handmade soap, and particularly relates to an antibacterial handmade soap formula of ganoderma lucidum enzymatic hydrolysate, which is prepared from the following raw materials in percentage by mass: 14-20% of ganoderma lucidum enzymatic hydrolysate, 50-65% of coconut oil, 3-7% of sodium hydroxide, 14-20% of distilled water, 1-3% of tea tree oil, 1-3% of unsaturated lipoglycerin and 0.1-0.3% of vitamin E, an extraction method of the lucid ganoderma enzyme dissolving solution comprises the following steps: putting raw material lucid ganoderma into a cleaning machine, cleaning, airing the cleaned lucid ganoderma, crushing into powder, putting pure water into the lucid ganoderma powder according to a ratio of 1: 10, and uniformly stirring. The composition can resist bacteria, moisten, repair and resist oxidation, the ganoderma lucidum enzymatic hydrolysate and the tea tree oil provide a natural antibacterial effect and prevent skin infection, the ganoderma lucidum polysaccharide and the ganoderma lucidum saponin promote collagen generation, balance skin color, resist oxidation and delay senescence, the composition does not contain synthetic perfume and preservatives, is suitable for sensitive skin, and adopts modern enzymolysis and sterilization technologies, so that the composition is safe and reliable. High efficiency and stability of products are ensured.

The invention discloses a long-acting stable antibacterial coating on the surface of a titanium product and a preparation method. The preparation method specifically comprises the following steps: pre-treating the titanium product; then, the titanium product is subjected to anodic oxidation twice, ultrasonic cleaning and drying, and a titanium dioxide nanotube pre-implanted with the copper element is prepared; and performing hydrothermal reaction on the titanium dioxide nanotube pre-implanted with the copper element for four times, cleaning and drying to obtain the long-acting stable antibacterial coating on the surface of the titanium product. According to the method, the gradient copper element nanotube is prepared through anodic oxidation of the pre-implanted copper element and four hydrothermal reactions, the coating of a gradient structure in which the content of the copper element is gradually increased from the interior of the nanotube to the exterior is obtained, and the copper element can be stably released while the antibacterial performance of the titanium product is guaranteed; the problems that an existing antibacterial metal doped titanium alloy is short in antibacterial effect lasting time, unstable in metal particle release and poor in antibacterial property are solved, and the titanium alloy serves as a long-acting and stable antibacterial coating on the surface of a titanium product and has good application prospects.

The invention relates to the field of aromatherapy, in particular to dried flower color locking aromatherapy and a preparation method thereof. The dried flower color locking aromatherapy comprises the following components in parts by mass: a transparent glass bottle, liquid aromatherapy and dried flowers, the liquid aromatherapy is arranged in the transparent glass bottle, and the dried flowers are soaked in the liquid aromatherapy. The liquid aromatherapy product is prepared from the following components in parts by weight: 50 to 65 parts of dipropylene glycol monomethyl ether, 5 to 8 parts of benzalkonium chloride, 10 to 12 parts of deionized water and 12 to 18 parts of color locking composition, wherein the color locking composition is ethylene glycol stearate, sodium carboxymethyl cellulose and essence. According to the dried flower color locking aromatherapy, the problems of fading and corrosion of dried flowers are solved, the original color and luster of the dried flowers are kept, fading and corrosion of the dried flowers are avoided for a long time, fragrance is kept, and the dried flower color locking aromatherapy has ornamental value and decorative value.

This utility model discloses an antibacterial, breathable, and slow-release memory foam pillow, relating to the field of memory foam pillow technology. It includes a memory foam pillow core, a pillowcase, ventilation holes, and a support component. The ventilation holes connect to the backrest end of the memory foam pillow core. The support component includes a breathable sheath and an internal filling layer. The filling layer has flow gaps and its surface is antibacterial. The breathable sheath is fitted inside the ventilation holes. Both the breathable sheath and the filling layer are soft. The advantages of this utility model are: by placing the filling layer inside the breathable sheath to inflate it, and then pressing the inflated breathable sheath into the ventilation holes, the support for the ventilation holes is improved, reducing the impact on comfort. Furthermore, the flow gaps in the filling layer and the breathable sheath ensure breathability and heat dissipation, and the antibacterial effect of the filling layer surface conveniently provides this antibacterial function to the ventilation holes.

The utility model relates to the field of flexible packaging materials, in particular to a compact composite type high-barrier linear easy-to-tear antibacterial nylon film and a composite film thereof. The tight composite type high-barrier linear easy-to-tear antibacterial nylon sequentially comprises an anti-sticking antibacterial layer, a first linear easy-to-tear nylon layer, a barrier layer, a second linear easy-to-tear nylon layer and a tight composite layer from outside to inside, the composite film sequentially comprises a tight composite type high-barrier linear easy-to-tear antibacterial nylon film layer, an adhesive layer and a heat sealing layer from outside to inside. According to the compact composite type high-barrier linear easy-to-tear antibacterial nylon film, a five-layer composite structure is adopted, various materials are laminated and combined, the advantages of the various materials can be integrated, and the performances are complementary; the composite film comprising the compact composite type high-barrier linear easy-to-tear antibacterial nylon film has good mechanical property, barrier property, antibacterial property, linear easy-to-tear property and excellent composite peel strength, and has a very wide application prospect.

This utility model relates to the field of clothing fabrics, providing a deodorizing and antibacterial fabric and a deodorizing and antibacterial insole. The deodorizing and antibacterial fabric includes a fabric surface layer and a first protective layer disposed on the fabric surface layer. The fabric surface layer includes a fiber matrix and multiple activated carbon particle structures and antibacterial particle structures distributed on the fiber matrix. Interconnected three-dimensional accommodating spaces are provided on the fiber matrix. By providing a fiber matrix with three-dimensional accommodating spaces within the fabric surface layer, the entire fiber matrix has three-dimensional accommodating spaces for the activated carbon particle structures and antibacterial particle structures, and the fixing method utilizes the adhesiveness of the fiber matrix. This achieves the placement of a large number of activated carbon particle structures and antibacterial particle structures throughout the fabric surface layer, ensuring the deodorizing and antibacterial effect of the fabric.

The utility model discloses an antibacterial non-woven fabric wash towel, which comprises a wrapping sleeve and a wash towel main body in the wrapping sleeve, a water-soluble film is arranged on the outer side of the wash towel main body, easy-to-tear openings are equidistantly arranged on the wash towel main body and the water-soluble film, the wash towel main body comprises a polypropylene non-woven fabric layer, and the polypropylene non-woven fabric layer is arranged on the outer side of the wash towel main body. A polyester antibacterial fabric is arranged on the inner side of the polypropylene non-woven fabric layer; a water absorption core is arranged in the face towel main body, and the water-soluble film wraps the outer surface of the face towel main body; a wrapping sleeve is arranged outside the face washing towel main body; through the designed water-soluble film, the water-soluble film wraps the outer side during use, the water-soluble film is torn down along with one end of the face washing towel body during use, the face washing towel can be directly washed and dissolved or torn down for use, bacteria can be blocked and reduced from breeding on the face washing towel body during daily placement, and the face washing towel body guarantees the antibacterial effect through the polyester antibacterial fabric; and the water absorption core can enhance the water absorption effect to facilitate face washing.

The utility model discloses a wear-resistant antibacterial ceramic tile, which relates to the field of ceramic tiles, and comprises a bottom plate, the top of the bottom plate is connected with a wear-resistant mechanism, the wear-resistant mechanism further comprises antibacterial glaze, the antibacterial glaze is also connected to the upper surface of an activated carbon layer, and an aluminum oxide material and the antibacterial glaze are mixed to form the wear-resistant antibacterial ceramic tile. The upper surfaces of the antibacterial glaze and the aluminum oxide material are connected with a microporous DLC (Diamond Like Carbon) protective film. According to the wear-resistant antibacterial ceramic tile, silver ions can be diffused to the surface of the ceramic tile through the microporous buffer fluid and micropores of the microporous DLC protective film, the antibacterial effect of the ceramic tile can be achieved through the silver ions of the antibacterial glaze, the humidity of the ceramic tile can be balanced through the silicon dioxide aerogel, the activity of the silver ions is guaranteed, and the antibacterial effect is improved in a disguised mode; in addition, impact force borne by the silicon dioxide aerogel and the honeycomb blocks can be transmitted to the microporous buffer fluid, the hardness of the microporous buffer fluid can be increased after the microporous buffer fluid is subjected to high-speed impact through the characteristics of an object, and protection on the ceramic tile is greatly improved.

The present invention provides an ES fiber containing wormwood active ingredients and its application in sweat-absorbing patch, including a core layer and a cortex with a weight ratio of 10: (8.8-9.4); the core layer is composed of the following weight parts of materials: 91-94 parts of polypropylene, 15-18 parts of high-density polyethylene, 8-10 parts of super absorbent resin, 2-3 parts of nano-silicon dioxide, 3-5 parts of carbon nanotubes, 6-8 parts of wormwood extract, and 2-5 parts of processing aids; the cortex is composed of the following weight parts of materials: 84-88 parts of polyethylene, 15-20 parts of super absorbent resin, 3-5 parts of nano-silicon dioxide, 2-4 parts of modified coconut shell activated carbon, 5-7 parts of wormwood extract, and 2-4 parts of processing aids. The ES fiber prepared by the present invention can effectively inhibit bacterial growth and odor generation, has excellent moisture absorption and antibacterial properties, and can be applied to the production of sweat-absorbing patches.

The invention discloses an EVA prefabricated coil for a plastic court track and a preparation method thereof, which solves the problem that when an ultraviolet absorber UV-531 is added during the preparation of the existing coil, the high temperature resistance is poor, and when it is compounded at high temperature or with other chemical additives, the compatibility may be reduced or migration may occur, thereby affecting the lasting effect of the coil in the coil. The coil comprises the following raw materials: ethylene-vinyl acetate copolymer, polytetrafluoroethylene, a hydrophobic agent, a cross-linking agent, a foaming agent, an antioxidant, and modified lignin. In an embodiment of the invention, an EVA prefabricated coil for a plastic court track is provided, which uses ethylene-vinyl acetate copolymer and polytetrafluoroethylene as base materials, and adds a hydrophobic agent, an antioxidant and modified lignin, so that the prepared EVA prefabricated coil has high tensile strength and uniform particle size, and the modified lignin in the raw materials has a strong ability to absorb ultraviolet rays, so that the coil has excellent sunscreen and UV protection properties.

The present invention relates to the technical field of polymer materials, and proposes a plastic packaging bottle with good pressure resistance and a preparation method thereof. A plastic packaging bottle with good pressure resistance comprises the following components in parts by mass: 100 parts of high-density polyethylene, 1.5-3.5 parts of low-density polyethylene, 1-4 parts of modified alumina, 0.2-0.4 parts of antibacterial agent, 0.1-0.4 parts of antioxidant, and 0.15-0.35 parts of color powder, wherein the modified alumina comprises siloxane-modified alumina and a compound-modified alumina containing hydroxyl and carboxyl groups in a mass ratio of 1:7-7:1. Through the above technical scheme, the problem that the PE plastic packaging bottle in the related art has poor pressure resistance and is easily deformed by compression is solved.

The present invention relates to the technical field of glass spraying, and in particular to a spraying device for glass production and a spraying process thereof. It comprises: a base; a sliding plate, slidably connected to the base, the sliding plate slidably connected to a sliding column; a rotating shell, rotatably connected to the sliding column; a nozzle, slidably connected in the rotating shell, the sliding column is provided with an electric swivel; a first elastic element, arranged between the rotating shell and the nozzle; a limit block, rotatably connected to the sliding column, the limit block is extruded and matched with the nozzle. The present invention makes the nozzle gradually slide outward along the rotating shell when spraying from the bottom of the glass to the outlet, and then maintains the relative position of the nozzle and the rotating shell until spraying to the outlet, so that the distance from the nozzle to the inner wall of the glass is always consistent, thereby improving the spraying uniformity of the nozzle on the inner wall of the glass and ensuring the antibacterial performance of the spherical glass.

The invention belongs to the technical field of chemical fibers, and particularly relates to a preparation method of a negative ion antibacterial modified colored DTY (Draw Textured Yarn) low stretch yarn, which comprises the following steps: pre-crystallizing polyethylene glycol terephthalate slices at high temperature, then drying, and carrying out ball milling treatment to obtain pre-crystallized polyethylene glycol terephthalate fine powder; adding the modified negative ion fine powder, the color master batch and the reinforcing filler into the pre-crystallized polyethylene glycol terephthalate fine powder, uniformly mixing, and then adding into a double-screw extruder for melt extrusion to obtain a mixed melt; and adding the mixed melt into a spinning box, uniformly cooling the mixed melt into POY (Polyester Pre-Oriented Yarn) by using circular blowing, and carrying out elasticizing treatment to obtain the negative ion antibacterial modified colored DTY low stretch yarn. The problem that existing polyester low stretch yarn is poor in antibacterial stability is solved, the bamboo charcoal particles are utilized to form a negative ion release system, silica mesoporous release channels and barrier properties are formed on the surfaces of the bamboo charcoal particles, and the antibacterial property and stability of the polyester low stretch yarn are guaranteed.

The utility model discloses an antibacterial anti-mite gel pillow, which belongs to the technical field of gel pillows.The antibacterial anti-mite gel pillow comprises a pillowcase, a first cavity and two second cavities are arranged in the pillowcase, the first cavity is located in the center of the pillowcase, and the two second cavities are located at the ends of the pillowcase; the pillow inner is of a gel structure body, and the pillow inner is located in the first cavity and attached to the inner surface of the first cavity; the material bag is located in the first cavity and the second cavity, and antibacterial particles and anti-mite particles are contained in the material bag. The antibacterial and anti-mite type gel pillow has good supporting performance and air permeability and also has good antibacterial performance and anti-mite performance, and after the pillow is used for a period of time, the material bag in the pillowcase can be rapidly replaced, so that replacement of the antibacterial particles and the anti-mite particles is completed, and the anti-mite type gel pillow is convenient to use. The antibacterial property and the anti-mite property of the pillow are further ensured.

The invention discloses an anticorrosive and antibacterial coating, a preparation method and application thereof and a household appliance, and belongs to the technical field of coatings. The anticorrosive and antibacterial coating is two-dimensional nano material grafted 2-methacryloyloxyethyl phosphorylcholine enhanced epoxy resin; the structure of the two-dimensional nano material comprises amino, and the preparation process comprises the following steps: carrying out grafting reaction on the two-dimensional nano material and 2-methacryloyloxyethyl phosphorylcholine to obtain two-dimensional nano material grafted 2-methacryloyloxyethyl phosphorylcholine; the amino group in the two-dimensional nano material grafted 2-methacryloyloxyethyl phosphorylcholine and the epoxy group in the epoxy resin are subjected to a chemical reaction to form a covalent bond, and the two-dimensional nano material grafted 2-methacryloyloxyethyl phosphorylcholine reinforced epoxy resin is obtained. The coating is applied to the aspect of shell coatings of household appliances, solves the problems of poor corrosion resistance and antibacterial effect of metal shells of existing household appliances, and has the characteristics of excellent corrosion resistance and antibacterial property.

The invention discloses an antibacterial self-lubricating composite fiber and a preparation method thereof, and the preparation method comprises the following steps: (1) mixing polyformaldehyde (POM) ultrafine powder with a dimethyl sulfoxide (DMSO) solvent to form a solution; adding hexamethyleneguanidine hydrochloride antibacterial powder into the solution, and carrying out ultrasonic-assisted dispersion; removing the solvent through heating evaporation or reduced pressure distillation, curing and slicing to obtain an antibacterial polyformaldehyde slice of an outer layer material; (2) spinning by using two-component spinning equipment, wherein the mass ratio of the antibacterial polyformaldehyde slices to the ultra-high molecular weight polyethylene slices of the outer layer material is 100: (20-30); and (3) controlling a temperature parameter, a pressure parameter and a speed parameter in the spinning process so as to realize uniform compounding and continuous extrusion of the fiber and prepare the antibacterial self-lubricating composite fiber. The preparation method provided by the invention can produce the composite fiber with antibacterial property and self-lubricating property, is suitable for multiple fields such as medical treatment, textile, industry and the like, and has wide application prospect.

The invention relates to the technical field of novel materials, especially coatings, in particular to a preparation process of a novel liquid mildew-proof antibacterial agent. The preparation method comprises the following steps: preparation of an ionic liquid, preparation of a microcapsule mildew-proof material, preparation of a molecular sieve MCM-41-NH2, preparation of a modified molecular sieve Ag / MCM-41-NH2, preparation of a nano composite material, preparation of a liquid antibacterial agent containing nano silver and the like. The mildew-proof antibacterial coating has the advantages of being simple in preparation process, environmentally friendly, excellent in mildew-proof performance, long in antibacterial effect and the like, and can be used in multiple fields of the textile industry, the building industry, the medical protection industry and the like.

The invention provides zinc oxide nanoparticles, a preparation method thereof and an acne removal, anti-inflammatory and oil control application thereof. The zinc oxide nanoparticles are modified by hyaluronic acid and are prepared by ultrasonically or stirring water-soluble zinc salt and hyaluronic acid in an aqueous solution. The zinc oxide nanoparticles modified by hyaluronic acid not only have better acid stability and lower cytotoxicity, but also can specifically kill acne pathogenic bacteria, and the gel prepared from the zinc oxide nanoparticles has good acne-removing, anti-inflammatory and oil-controlling effects when applied to skin.

The utility model discloses long-acting antibacterial soft melt-blown cloth, and relates to the field of mask clothes.The long-acting antibacterial soft melt-blown cloth comprises an outer melt-blown cloth body, a plurality of connecting blocks are fixedly arranged on the lower end face of the outer melt-blown cloth body, an inner melt-blown cloth body is fixedly arranged on the lower end faces of the connecting blocks, and an antibacterial layer is arranged between the outer melt-blown cloth body and the inner melt-blown cloth body; absorption holes are formed in the positions, aligned with the multiple connecting holes, of the surface of the antibacterial layer, the multiple absorption holes penetrate through one another to form a disinfection cavity, the antibacterial effect can be continuously kept, and the inner layer is attached to the face of the human body, so that the softness is improved.

This utility model discloses an antibacterial hose cap, including a main support cap. A sealing sleeve is abutted to the bottom of the main support cap, and an isolation plate is fixedly installed on the inner side of the sealing sleeve. A through groove is formed on the bottom surface of the isolation plate, and a movable top groove is formed on the top of the main support cap. The sealing sleeve is fitted onto the outer side of the hose, and the isolation plate further isolates and seals the outer side of the hose, further enhancing the sealing effect. This allows for the separation of the sealing top block from the hose, making operation simple and convenient. No complicated tools or tedious disassembly steps are required; ordinary users can easily replace the sealing top block, saving time and effort. Pressing the top block and the inner top block automatically resets, and the new sealing top block quickly and tightly engages with the top opening of the hose, achieving rapid sealing and reducing the hose's exposure time during sealing top block replacement, thus reducing the risk of leakage and contamination.

The present application relates to a manufacturing method of a loess plate with a carbonized layer built-in, and particularly relates to a loess plate and a manufacturing method thereof, which can keep the inherent functions of loess and charcoal such as antibacterial property, odor removal, moisture absorption and release, etc. in an excellent manner even if a coating film is formed on the surface of the loess plate, and the surface particles are not easy to fall off, and the surface of the loess plate will not be scratched and contaminated by sharp objects.

The invention relates to the technical field of plate heat exchanger material processing, in particular to a preparation method of a corrosion-resistant titanium alloy foil for a plate heat exchanger. The preparation method comprises the following steps of S1, titanium alloy cast ingot preparation, S2, to-be-rolled blank preparation, S3, cooling and cold rolling and S4, aftertreatment. According to the method, the boron oxide powder is deposited in the micro-etched micropores, and then the surface of the titanium foil is coated with the octenidine-loaded mesoporous ceramic powder composite liquid, so that a protective layer with antibacterial and corrosion-resistant properties is formed on the surface of the titanium alloy warm-pressing blank, and a corrosive medium is prevented from being in direct contact with the titanium alloy foil; meanwhile, in the plate heat exchanger, the titanium alloy is coated with the mesoporous ceramic powder solution loaded with octenidine, breeding of microorganisms on the surface of the titanium alloy foil is reduced, and the sanitation performance and the operation efficiency of the heat exchanger are improved.

The invention relates to the technical field of lithographic printing, in particular to surface-active alcohol-free fountain functional water and a preparation method thereof. The surface-active alcohol-free fountain functional water is prepared from the following raw materials in parts by weight: 8-15 parts of glycerol, 8-12 parts of disodium hydrogen phosphate, 6-10 parts of citric acid, 4-6 parts of gum arabic, 3-6 parts of propylene glycol, 2-5 parts of ethylene glycol monobutyl ether, 0.8-1.5 parts of magnesium nitrate, 2-4 parts of a dispersing aid, 0.6-1.0 part of a metal protective agent, 0.5-1.0 part of an antibacterial agent, 1-2 parts of a compound aid, 1-3 parts of a defoaming agent, 2-3 parts of a wetting agent and 70-90 parts of deionized water. The prepared surface-active alcohol-free fountain functional water has excellent oxidation resistance and also has excellent antibacterial performance, so that the service life of the water is prolonged to a certain extent, and the quality of the water is guaranteed; moreover, the fountain solution can replace traditional alcohol fountain solutions, toxicity is reduced, safety and environmental friendliness are improved, meanwhile, the printing effect and quality are improved, and the printing cost is reduced.

The invention discloses a production process of an antibacterial and wear-resistant plastic toy. The production process of the antibacterial and wear-resistant plastic toy comprises the following steps: mixing PVC powder with a plasticizer, a stabilizer, a lubricant, a coloring agent and the like in proportion; adding the mixed PVC raw materials into a hopper of an injection molding machine, and conveying the PVC raw materials into a heating cylinder through a screw rod; the raw materials are heated and plasticized in the heating cylinder; the screw rod rotates to uniformly mix the plasticized PVC and gradually push the plasticized PVC to a mold opening; the plasticized PVC is injected into the mold cavity at the preset injection molding temperature under the preset injection molding pressure; the injection pressure is kept for a period of time, the mold is filled with the PVC material, preliminary cooling is conducted, and the pressure keeping time depends on the thickness and shape of the product; after the pressure maintaining is finished, continuously cooling the toy in the mold; and after cooling is completed, opening the mold, and taking out the formed toy. According to the production process of the antibacterial wear-resistant plastic toy disclosed by the invention, the plastic toy is produced by adopting the PVC material particles with the antibacterial property, so that the antibacterial function of the plastic toy is improved.