145results about How to "Long-acting antibacterial" patented technology

The invention relates to anti-bacterial water-based paint and a preparation method thereof. The paint comprises the following components in parts by weight: 0.2-11 parts of anti-bacterial agent, 8-33 parts of nano material, 23-64 parts of water-based resin dispersoid and 0.75-18 parts of adhesive resin or plasticizer. The preparation method comprises the following steps: firstly preparing a nano silver anti-bacterial agent; mixing deionized water, the anti-bacterial agent, a wetting agent, a dispersing agent and a defoaming agent and uniformly mixing, adding the nano material, uniformly dispersing to obtain the water-based dispersoid; adding the obtained water-based dispersoid to the mixed emulsion or water-based resin dispersoid, then adding the adhesive resin or plasticizer and various conventional assistants, stirring and dispersing evenly; adding pigments or colorant; and supplementing water to obtain the anti-bacterial water-based paint. The long-acting broad-spectrum antibacterial water-based paint has high fungicidal efficiency (more than 99%) on escherichia coli, staphylococcus aureus, black varietas of bacillus subtilis and the like and can reduce the high concentrate of organic matters of formaldehyde to the range of specified concentration index.

The invention provides a coating with antibacterial and air-purifying functions. The coating is formed by the following component in percentage by mass: 1-10% of porous silicon dioxide and titanium dioxide compound photocatalytic material, 40-85% of calcium carbonate, 10-50% of ash calcium powder, 5-30% of talcum powder, 10-15% of white cement, 0.5-5% of organic polymer and 0.1-1% of cellulose. A dry powder coating and water are mixed according to a weight ratio of 1: (0.3-1) and then a mixture is subjected to common spraying or scraping construction to be cured into a film, so that the long-effect antibacterial and air-purifying effects are realized. The antibacterial effect on common bacteria in the indoor air, such as Escherichia coli, reaches to be more than 98%; more than 83% of formaldehyde can be decomposed and purified in 48 hours and more than 49% of toluene can be decomposed and purified; and compared with the similar products, the formaldehyde/toluene degradation capability of the coating is stronger, so that the coating can be used as an indoor coating.

The invention discloses an antibacterial ceramic tile. The antibacterial ceramic tile comprises an antibacterial glaze layer arranged on the upper surface of a ceramic tile; the antibacterial glaze layer is composed of a basic transparent glaze and a zirconium phosphate loaded composite antibacterial agent; the zirconium phosphate loaded composite antibacterial agent comprises a zirconium phosphate carrier and a composite antibacterial agent; the zirconium phosphate loaded composite antibacterial agent is accumulated at the upper part of the antibacterial glaze layer, and antibacterial effective components of the composite antibacterial agent are antibacterial oxides and antibacterial ions. According to a preparation method, zirconium phosphate is introduced into the antibacterial glaze layer on the surface of the ceramic tile; by utilizing the characteristic of low density of zirconium phosphate, zirconium phosphate is accumulated at the upper part of the glaze layer after being sintered at a high temperature to form a surface with a porous structure, so that the zirconium phosphate is used as a carrier to which the composite antibacterial agent is attached, the binding force of antibacterial materials and the ceramic tile is enhanced, the ceramic tile is endowed with long-acting and excellent antibacterial performance, and meanwhile, the surface appearance decoration effect of the ceramic tile is not influenced. The invention further discloses a preparation process of the antibacterial ceramic tile, and the preparation process is simple in step, high in controllability and beneficial to large-scale industrial production.

The invention relates to a thermal insulation coating and a preparation method thereof, and the preparation method comprises the following steps: adding hollow granular micro-bubbles made of special materials, hollow glass beads and an opaque polymer on the basis of a water base, a bonding agent base material and a filler, combining active hydroxyl genes thereof with a molecular chain of an emulsion polymer and forming a dense net layer structure in a coating, wherein the coating has the comprehensive thermal insulation function of reflecting, blocking and radiating solar heat and has the significant effects of thermal insulation and energy conservation. The coating has strong adhesion to the surface of a building, the thickness of a coating dry film is only 60 mu m-150 mu m, and the coating is not only thermal-insulating, but also water-proof. The coating has excellent air permeability and long-lasting antibacterial property, as well as the advantages of pollution prevention, self-cleaning, sound isolation, aging resistance, long service life, easy construction and manpower conservation; compared with the traditional thermal insulation material, the coating has excellent performance-price ratio.

The invention relates to a silver-carried antibacterial finishing agent and a preparation method thereof, which are mainly applied to a textile coating. The preparation method comprises the following steps of: reacting isocyanate and a polyalcohol compound to generate an isocyanate-terminal prepolymer, and reacting the isocyanate-terminal prepolymer and a hydroxyl-containing alkenyl monomer to form an alkenyl-containing polyurethane prepolymer; and copolymerizing the prepared polyurethane prepolymer, an acrylate monomer and an alkenyl amine monomer to generate amine-containing polyurethane-acrylate copolymer emulsion, and adding silver nitrate and amino group into the emulsion to form a complex and then generate the silver-carried long-lasting antibacterial finishing agent.

The invention relates to an antibacterial diatomite-based coating as well as a preparation method and application thereof, and particularly relates to an antibacterial coating for wallpaper, belonging to the field of coatings. According to the antibacterial diatomite-based coating, an antibacterial agent is loaded on a special porous structure of diatomite, so that the diatomite is endowed with antibacterial performance, and then the antibacterial agent-loaded diatomite, a dispersing agent, a defoaming agent, a water retaining agent, water and an adhesive are mixed and stirred to prepare the diatomite coating. According to the method, the antibacterial agent with excellent performance is used for replacing existing widely-used nanometer titanium dioxide; during implementation of the method, the antibacterial agent is good in bactericidal activity, broad-spectrum, long-acting, small in usage amount and low in price. The method is convenient and feasible, simple to operate without using special instruments and equipment, and easily produced industrially.

The invention discloses an uvioresistant fleece fabric, which comprises the following raw materials in percentage by mass: 20% to 40% of bottom layer tissue and 80% to 60% of fleece yarn tissue, wherein at least one of the bottom layer tissue and the fleece yarn tissue is made of uvioresistant fiber, and the uvioresistant fiber is uvioresistant polyester fiber. The invention also discloses a preparation method of the uvioresistant fleece fabric, and the method comprises the following steps of selecting of raw materials, warping, weaving, slitting, thermal shaping, dying or printing and post arrangement. By adopting the method, the prepared uvioresistant fleece fabric has the uvioresistant function for a long time.

The invention relates to a novel composition for disinfecting nipple skins of dairy cows, in particular to a composition for disinfecting the nipple skins of the dairy cows before and after milking.

The invention relates to a sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile. The method adopts the sol-gel technology, takes an ammonium salt as a catalyst, and prepares a modified silica sol through the joint hydrolysis of water glass and a quaternary ammonium salt or a quaternary ammonium hydrate. An antibiotic gel coating is formed on the textile by an impregnation, padding or padding stacking method so as to endow the textile with stable and durable antibiotic performance. The method is widely applied to the antibiotic sorting of textile, and has simplicity, low cost and easy industrialization.

The invention discloses a method for preparing an antibacterial non-woven fabric and particularly discloses a method for preparing an efficient and long-acting nano-silver antibacterial melt-blown non-woven fabric. Benzene, toluene, trichloromethane or carbon tetrachloride solution of an amphiphilic hyperbranched polymer is mixed with silver nitrate aqueous solution, and a high-concentration solution of the amphiphilic hyperbranched polymer is obtained through standing liquid separation and rotary evaporation. A spraying method is adopted to spray the high-concentration solution to raw material particles or slices of the melt-blown non-woven fabric, stirring is performed continuously, and after a processing process of the melt-blown non-woven fabric, the antibacterial non-woven fabric with fibers containing nano-silver particles can be obtained. The amphiphilic hyperbranched polymer is utilized to perform in-situ control in the melt-blown non-woven fabric fibers to generate nano-silver, the generated nano-silver has the advantages of being small in particle diameter, being dispersed evenly and being high in combining firmness, an existing melt-blown non-woven fabric production device does not need to be upgraded and rebuilt, and the method has simplicity and convenience in processing.

The invention discloses a preparation method of a long-acting and anti-bacterial polylactic acid fiber film, belonging to the technical field of eco-friendly material. The method comprises the following steps: mixing polyethylene glycol with dichloromethane according to the volume ratio ranging from 2:7 to 2:8 into a stirring machine, adding anti-bacterial additive which is 0.1 to 0.3 times the volume of the polyethylene glycol and polylactic acid which is 1.0-1.4 times the volume of the polyethylene glycol, mixing the above for 30-60 minutes and keeping stirring at temperature ranging from 40-50 DEG C and at rotary speed ranging from 380 to 500r/min and carrying out ultrasonic dispersion operation on the mixture at the frequency being 45 to 55 kHz in order to acquire spinning liquid; performing electrostatic spinning on the spinning liquid in order to obtain a film so that the long-acting and anti-bacterial polylactic acid fiber film is acquired. According to the technical scheme, thelong-acting and anti-bacterial polylactic acid fiber film enjoys excellent advantages such as anti-bacterial performance and long-acting and anti-bacterial performance so that a broad prospect in theindustry of eco-friendly material is acquired. A ceramic grinding aid prepared by the technical scheme has the feature of excellent grinding aiding efficiency and has a wide prospect in the development of the industry for ceramic processing agents.

The invention discloses a production technology of antibacterial blended cotton yarns. The production technology comprises the following steps: firstly, respectively preparing 10 to 16 parts of cottonfibers and 3 to 5 parts antibacterial fibers according to weight parts; secondly, respectively preparing the cotton fibers and the antibacterial fibers in the first step into a first lap and second lap in an opening and cleaning procedure; thirdly, respectively preparing the first lap and the second lap obtained in the second step into a first card sliver and a second card sliver in a cotton carding procedure; preparing the first card sliver and the second card sliver into a drawn sliver through a drawing procedure; fourthly, enabling the drawn sliver obtained in the third step to undergo a roving procedure and the spinning procedure to obtain the antibacterial blended cotton yarns. The antibacterial blended cotton yarns with an antibacterial effect, disclosed by the invention, are obtained by blending ordinary fibers with antibacterial fibers, and have sweat absorbing performance and hand feel of cotton and a certain antibacterial effect.

The invention discloses an antibacterial laundry detergent. The technical scheme is mainly characterized in that the antibacterial laundry detergent comprises components in parts by weight as follows: 50-150 parts of an anionic surfactant, 20-200 parts of a nonionic surfactant, 5-40 parts of a cationic surfactant, 50-150 parts of a solvent, 1-10 parts of an anti-redeposition component, 1-10 parts of a thickener, 1-50 parts of a disinfectant, 1-3 parts of a high-activity cerium silver mesoporous composite antibacterial agent and 1-3 parts of nano-TiO2 antibacterial agent. The antibacterial laundry detergent is characterized in that the high-activity cerium silver mesoporous composite antibacterial agent is added to the antibacterial laundry detergent, and an antibacterial active material can be dispersed in a sterilization-requiring environment uniformly through combination of a mesoporous material and the antibacterial active material, so that bacteria on clothing can be killed effectively; the nano antibacterial agent is added to the antibacterial laundry detergent, after washing, the nano-TiO2 antibacterial agent can be partially attached to the clothing and has a lasting antibacterial function, and accordingly, a long-acting antibacterial effect is obtained.

The invention discloses durable anti-mildew aqueous wood wax oil. The wood wax oil comprises the following components: 40-80% of aqueous urethane oil, 0.5-10% of a nano oxide, 0.2-5% of a silane coupling agent, 10-40% of water, 2-4% of a film-forming auxiliary agent, 0.05-5% of a dispersant, 0.05-5% of a levelling agent, 0.05-5% of an anti-foaming agent, 0.05-5% of a wetting agent, and 0.2-0.4% of a pH conditioning agent. The invention also provides a preparation method of the durable anti-mildew aqueous wood wax oil and an application technology thereof. The durable anti-mildew aqueous wood wax oil has good environmental protection performance, has deep and durable protection performance on bamboo and wood base materials, and has excellent moisture-resistance performance and is not easy to go moldy.

The invention discloses a method for preparing antibacterial non-woven fabric, and particularly relates to a method for preparing efficient and durable nano-silver antibacterial melt-blown non-woven fabric. The method includes the steps that a benzene or methylbenzene or trichloromethane or carbon tetrachloride solution of an amphipathy hyperbranched polymer and a silver nitrate aqueous solution are mixed and stirred, and a high-concentration solution of the amphipathy hyperbranched polymer is obtained through standing liquid separation and rotating evaporation; the high-concentration solution is sprayed into raw material particles or slices of melt-blown non-woven fabric with a spraying method, continuous stirring is carried out, then the processing working procedure of the melt-blown non-woven fabric is carried out, and the antibacterial non-woven fabric with fibers containing nano-silver particles can be obtained. According to the method, nano-silver is generated in melt-blown non-woven fabric fibers through the amphipathy hyperbranched polymer in an in-situ control mode, and the generated nano-silver has the advantages of being small in particle size, even in dispersing and high in combining firmness; meanwhile, existing melt-blown non-woven fabric production equipment does not need to be upgraded and transformed, and processing is easy and convenient.

The invention relates to the field of building coatings, in particular to an antibacterial, mildew-proof and flame-retardant silicate interior wall coating and a preparation method thereof. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating is prepared from, by mass, 30-60 parts of slurry, 45-55 parts of filler, 20-65 parts of diluent A, 10-25 parts of diluent B and 1-3 parts of auxiliaries; the slurry is prepared from the following components in parts by mass: 2 to 6 parts of hydroxyethyl cellulose, 0.3 to 1 part of a wetting agent, 0.1 to 1 part of a dispersing agent, 0.1 to 0.8 part of a de-foaming agent and 0.1 to 0.5 part of other auxiliary agents; the filler comprises the following components in parts by mass: 10-30 parts of carrier nano silver, 5-15 parts of titanium dioxide, 5-10 parts of kaolin, 10-15 parts of talcum powder and 10-30 parts of heavy calcium carbonate; the auxiliaries comprise the following components in parts by mass: 2-10 parts of propylene glycol, 0.1-3 parts of a defoaming agent, 0.1-1 part of a rheological modification auxiliary and 0.1-0.6 part of a polyurethane thickening agent. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating disclosed by the invention is excellent in antibacterial, mildew-proof and flame-retardant properties, green, environment-friendly and long in service life.

The invention relates to an antibacterial retanning agent and a preparation method thereof. The preparation method comprises the following steps: (1) adding poly(acrylic acid-vinylamine) copolymer in water to obtain a poly(acrylic acid-vinylamine) copolymer aqueous solution, and adjusting pH with an alkali solution; and (2) adding modified triclosan, and reacting to obtain the antibacterial retanning agent. The prepared antibacterial retanning agent is used in leather, and mildew-proof and antibacterial effects of the leather and products thereof can be improved. The obtained leather and fur are long in mildew-proof action time and is migration-resistant. The antibacterial retanning agent has long-acting antibacterial and bacteriostatic effects.

The invention discloses a special chitosan derivative-based water-free hand washing liquid for children, and a preparation method thereof, wherein the special chitosan derivative-based water-free hand washing liquid comprises the following raw materials by weight: 0.1-5 parts of a chitosan derivative, 0.01-1 part of a viscosity modifier, 1-10 parts of glycerin, 0.01-1 part of a skin-care agent, 0.01-0.5 part of a surfactant, and 100 parts of deionized water. According to the present invention, the water-free hand washing liquid with advantages of safety, no harm to human body, environmental protection and efficient antibacterial property is prepared by using the chitosan derivative macromolecule having the antibacterial function group as the active substance; and the water-free hand washing liquid designed for the children skin has the reasonable formula, can form the protective film on the child hand surface after the use, can kill a variety of pathogenic bacteria in children, and has characteristics of strong antibacterial ability, long acting time, no color, no odor, no toxicity, no irritating, smoothness and comfort after the use, no requirement of water rinsing, convenient use, and convenient carrying.

The invention discloses an environment-friendly high-efficiency nanometer antibacterial agent for leather, and a preparation method and application thereof. The preparation method comprises the following steps: uniformly dispersing synthetic silicate nanoparticles in a certain mixed solvent, modifying the surfaces of the nanoparticles by using an amino silane coupling agent, and carrying out amidation reaction under specific conditions to obtain the nano antibacterial agent with phenolic hydroxyl and hydrophilic carboxyl. According to the preparation method, the adopted raw materials are environmentally friendly and easily avaiable, the prepared environment-friendly high-efficiency nanometer antibacterial agent for leather has long-acting antibacterial property, the antibacterial effect reaches 99% or above, and the nano antibacterial agent is uniformly dispersed and stably combined in a leather matrix and can be used for tanning, retanning, fat liquoring and other leather making procedures.

The invention discloses a method for producing antibacterial towels, and relates to the technical field of towel articles. The method includes steps of A, preparing raw materials including pure cotton yarns and bamboo fibers with a proportion of 3:2; B, carrying out antibacterial treatment on the raw materials, to be more specific, 1) washing and decontaminating the bamboo fibers by the aid of distilled water and drying the bamboo fibers by the aid of a loose dryer at a low baking temperature of 45-55 DEG C, 2) picking and decontaminating the pure cotton yarns, immersing the pure cotton yarns in antibacterial solution for 60-120 minutes and then drying the pure cotton yarns; C, weaving each group of warp yarns and each group of weft yarns in a staggered manner to obtain towels in required styles; D, carrying out finishing on the towels, to be more specific, cutting and trimming the towels woven at the step C and sewing the edges of the towels to completely produce the antibacterial towels. Each group of warp yarns comprises two corresponding pure cotton yarns and the single corresponding bamboo fiber, and each group of weft yarns comprises the single corresponding pure cotton yarn and the single corresponding bamboo fiber. Compared with the prior art, the method has the advantages that the antibacterial towels produced by the aid of the method are safe and are environmentally friendly, and long-acting antibacterial effects can be realized by the antibacterial towels.

The invention provides an antibacterial hydrogel with controllable released nano silver ions and a preparation method thereof. The preparation method comprises the following steps: 1, mixing modifiednano silver-loaded microspheres and a modified gelatin solution to form a prepolymer solution, adding a photoinitiator into the prepolymer solution, and uniformly mixing them; 2, putting the solutionobtained in the step 1 in a mold, carrying out photocrosslinking gelation under an ultraviolet light source to obtain the antibacterial hydrogel. The prepared hydrogel with controllable released nanosilver ions can effectively improve the toxic effect of the nano silver particles on tissue cells and achieve long-acting antibacterial and bacteriostatic functions, thereby promoting complete tissuerepair and regeneration.