4509 results about "Anti bacteria" patented technology

An inner sole assembly for slippers or sandals includes a slipper or sandal made up of a sole, a retaining strap, a coupling pad, and an insole wherein the sole has a plurality of assembly holes properly preset at the top surface thereon for the retaining strap led through the insole and the coupling pad thereof respectively to be fixedly engaged therewith, and the coupling pad, better made of EVA or PVC foaming material, is sandwiched between the insole and the top surface of the sole to integrally combine the insole and the sole into one piece. The insole has a plurality of resilient supporting rings with air vents densely and neatly arranged in upright circular shapes at the upper surface thereon, an engaging underside formed at the bottom surface thereof to be fixedly attached to the coupling pad thereby, and a plurality of dividing passages defined at the adjacent sides of the closely juxtaposed resilient supporting rings thereof. Thus, in case tiny grains of sands / stones get caught inside the insole thereof, the sands / stones can be precisely flushed or knocked out there-from via the air vents of the resilient supporting rings in an easy and fast manner, achieving superior effect of massage as well as sand-draining and air-venting capabilities. Besides, the insole can also have bamboo charcoal contained therein to provide deodorization and anti-bacteria effects thereof.

The invention discloses a preparing method of single component nanometer antibiotic water-based woodware paint, which is characterized by the following: the three diverse water-based polyurethane resin emulsion, water-based acrylic acid modified polyurethane resin emulsion and nanometer water-based acrylic resin emulsion are mixed with diverse ratio as film forming matter; it drops the cost of this product and possesses merits of low VOC value, blocking resistance, fish tail tolerant, pollution tolerant, yellowed tolerant and good blocking; the organic swelled ground prefabricated sol is the carrier of compositing type inorganic antibacterial agent, it incorporates multiple inorganic nanometer composition. This invention is easy to process, which can resolve craft problems of sedimentation, discoloration and birdnesting.

A photocatalytic coating composition and method of coating articles, the composition containing solvents for rapid evaporation at room temperature, polyalkylphenylsiloxane, xylene, nano densified hydrophilic fumed silica, nanostructured composite photocatalyst powder and nano inorganic anti-bacteria powder. The coating may be applied by conventional coating methods to organic or inorganic structured surfaces where photocatalytic activity is desired, such as in a forced air-circulating environment. Once applied, the coating quickly dries to leave an adherent, flexible, durable, and long-lasting photocatalytic coating having a large surface area and exhibiting high surface activity against pathogens and pollutants such as bacteria, viruses, mold, fungi, and volatile organic compounds.

The invention relates to an omnidirectional antibacterial intelligent type air purifier for a vehicle, which comprises a shell, an air purification component, a fan power component, an energy component, an induction sensor component, a negative-ion generator and a display intelligent control component. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses a nano silver modified titanium dioxide as a photocatalyst, thereby increasing photocatalysis effect and sterilization antibacterial performance. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses an ultraviolet light emitting diode as a ultraviolet light source, thereby guaranteeing the photocatalyst to be capable of playing the role of degrading pollutants efficiently. The inner surface and the outer surface of an enclosure all have antibacterial performance, thereby guaranteeing bacteria not to live on the surface of an airframe of the omnidirectional antibacterial intelligent type air purifier for the vehicle, and guaranteeing personal safety. The omnidirectional antibacterial intelligent type air purifier for the vehicle can automatically induct air conditions, adjusts purification power in real time, and has intelligent control function.

The invention relates to negative-ion, far-infrared, antibacterial and anti-mite compound polyester fibers and a manufacturing method thereof. The compound polyester fibers are added with a negative-ion additive, a far-infrared additive and an antibacterial and anti-mite additive, wherein the negative-ion additive, the far-infrared additive and the antibacterial and anti-mite additive respectively account for 2%, 5% and 6% by mass in the compound polyester fibers; the negative-ion additive comprises an additive carrier and tourmaline negative-ion powder; the far-infrared additive comprises an additive carrier, Tai Chi stone powder, ZrO2 nano-powder, nano-silicon dioxide, nano-aluminum oxide, nano-manganese oxide and nano-calcium oxide; the antibacterial and anti-mite additive comprises an additive carrier, nano-Cu-ZnO compound particles, nano-titanium dioxide, nano-zinc oxide and nano-silicon dioxide; and the additive carrier is TiO2 hollow spheres.

This invention discloses a compound antibacterial silk nanometer fibrous material, accounting for weight its component proportion are: Sericin protein 58-90%; chitosan or chitin 0-40%, antibacterial agent 0-5%, electric conduction 1-4%,crossing linking 1-4%. Its process is: dissolve the pure sericin protein, antibiotics separately in polar solvent, join electric conduction medicinal preparation and crosslinking agent, using the static electricity spinning technique, making the average aperture for 0.5-5.0 micron, factor of porosity 60-90%, the mean diameter is 40-100nm and the material is nanometer textile fiber adhesive-bonded membrane. This invention has good organization compatibility with human body, Antibiotics and sericin insoluble is in homogeneous solvent, massive holes among the nanometer textile fiber adhesive-bonded membrane, which has outstanding aqueous percolation permeability, antibacterial agent distributes evenly in the nanometer textile fiber, and the medicine release effect is perfect, so it can be a kind of ideal resist bacteria injured medical material.

The invention discloses a method for preparing an antipollution chitosan-nonwoven fabric composite porous filter membrane and belongs to the technical field of microfilter and ultrafilter composite membranes. The method is characterized in that the method adopts nonwoven fabric with nominal aperture of between 0.1 and 10 microns as a base membrane; a crosslinking agent is adopted to carry out pretreatment on the base membrane; 0.1 to 10 mass percent amylose is dissolved in an acetic acid solution; the crosslinking agent and a hole formation agent are added into the acetic acid solution; after the crosslinking reaction, a casting film liquid is obtained; at negative pressure, the casting film liquid is evenly coated on the surface and pores of the porous base membrane; and after treatment by a sodium hydroxide solution and a hot water bath, the antipollution chitosan-nonwoven fabric composite porous filter membrane is formed. The method has the advantages that the prepared composite membrane has good mechanical performance and chemical stability; and the surface of the membrane is levelled and smooth. The composite membrane has dual functions of hydrophile and antibiosis, can lighten adsorption of pollutants on the surface of the membrane, inhibit the growth and reproduction of thalli on the surface of the membrane, and keep the penetrating performance of the membrane and is widely applied to the water treatment process of various fields.

The invention belongs to the technical field of inorganic materials and in particular relates to a kieselguhr-based environmentally-friendly glaze material for an inner wall brick and the inner wall brick prepared by using the same as well as a preparation method. The kieselguhr-based environmentally-friendly glaze material for the inner wall brick comprises kieselguhr, a nano TiO2 / tourmaline composite material, a sintering adjuvant, ceramic pigment, a dispersing agent and water, wherein the weight ratio of kieselguhr to nano TiO2 / tourmaline composite material to sintering adjuvant to ceramic pigment to dispersing agent to water is (40-92):(6-40):(2-15):(0-8):(0.1-4):(60-250). According to the invention, a functional raw material nano TiO2 / tourmaline composite material is introduced in the environmentally-friendly glaze material for the inner wall brick, and the functional raw material has multiple functions of obviously dispelling poisonous and harmful gases such as formaldehyde, ammonia, benzene, volatile organic compound (VOC) and the like which are released by various decoration and finishing materials, furniture and the like, releasing negative ions, resisting bacterium and the like.

The invention discloses a self-cleaning antibacterial ceramic glaze and a preparation method and a ceramic product thereof. The key of the self-cleaning antibacterial ceramic glaze provided by the invention is that the ceramic glaze contains Ti element and Ag element. The ceramic glaze comprises the following components in percentage: 52-72% of SiO2, 5-9% of Al2O3, 6-10% of CaO, 2-6% of K2O, 0.5-1.5% of Na2O, 0.5-3% of ZnO, 1-3% of Li2O, 4-8% of Ti2O, 1-3% of V2O5 and 1-5% of Ag2O3. The ceramic product of the invention comprises a ceramic noumenon, which is characterized by containing a self-cleaning antibacterial ceramic glaze layer on the surface of the ceramic noumenon. The composition of the invention is suitable to be adopted in primary glazing process, and the surface of the ceramic glaze has high flatness, fined and delicate crystalloid, good smooth finish, no needle pole, extremely soft and good glass like and smooth in touch and reaches the self-cleaning antibacterial effect of ultra smooth glaze layer enamel.

The invention relates to an air purifying composition, and a preparation method and use thereof. The method comprises: adding 0.1 to 40 parts of mixed fatty alcohol, 0.01 to 10 parts of dispersing aid, 106 parts of water and 0.01 to 5 parts of synergistic components into a reaction kettle under normal temperature and at room temperature, and fully stirring; adding 0.01 to 10 parts of nano silver solution and 0.05 to 10 parts of plant extract in turn, and uniformly stirring; and performing ultrasonic dispersion treatment on the mixture in the reaction kettle to obtain the air purifying composition. The air purifying composition prepared by the method has high antibacterial performance, can effectively remove harmful volatile organic matters and improve air quality in rooms, carriages, public places and the like, is safe and low in production cost and has high market competitive power.

The invention relates to a method for loading silver nano-particles on a cellulose-containing material, belonging to the field of the preparation of inorganic nano materials. By using the structure that cellulose is rich in hydroxyl and by using the cellulose as a reducing agent, the in-situ growth of nano silver on the cellulose is realized under the condition of heating. The reaction is simple to operate and easy to control, the repeatability is good, no pollution is caused, the cost of raw materials is low and the large-scale production is easy to realize. The obtained cellulose-containing material loaded with the nano silver has the advantages of even nano silver size and distribution and high adhering firmness, and can be widely used for antibacterial packaging paper, medical nursing sterilizing articles, paper for women and the like. The nano silver loaded on the cellulose-containing material has very high and stable enhancing effect and the material can also be used for surface enhanced Raman spectrum substrates.

A porous charcoal adsorbent for cleaning environment is composed of porous charcoal as carrier and zinc oxide nano-particles as active component. Its preparing process includes such steps as reaction between zinc nitrate micro-emulsion and sodium hydroxide to obtain zinc oxide nano-particles, carrying them by porous charcoal and heat treating. Its advantages are high absorptive power and high photo-catalytic and antibacterial activities.

Titanium dioxide nanoparticles are prepared in liquid phase at a low temperature. The titanium dioxide nanoparticles can be added into polyester to prepare polyester grains having a photocatalytic antibacterial property. Furthermore, a textile can be dipped into a solution containing the titanium dioxide nanoparticles to obtain a photocatalytic antibacterial textile.

The invention discloses finishing technology for aromatic anti-bacteria cotton textile, which comprises the steps of extraction of active matters of plants, preparation of natural germicide and chitosan cross-linking and finishing technology of the cotton textile; finished knitted or machine-made cotton textile has long-time aroma and has health-care effect such as broad-spectrum bacteriostasis, sterilization, desinsectization and the like; in addition, the cotton textile disclosed by the invention has very good washability; and the cotton textile can be prepared as a plurality of knitted or machine-made health-care fabrics such as bras, underwear, pants, pajamas, pillowcases, bed sheets and the like.

A water multifunctional woodenware lacquer and its production are disclosed. The lacquer consists of water acrylic modified polyurethane resin emulsion 60.0-90.0%, water 5.0-20.0%, wetting agent 0.1-1.0%, anti-foaming agent 0.1-1.0%, thickener 0-1.0%, smoothening agent 0-2.0%, leveling agent 0.1-1.0%, flatting agent 0-1.0%, inorganic nano-antibacterial agent 0.01-0.1%, cellulose ester 0.1-1.0%, composite nano-anionic additive 1-5% and accessories. The process is carried out by adding various components except emulsion and leveling agent into water, agitating to obtain the mixed slurry, grinding by sand mill or triple-roller machine, filtering to obtain half-finished mixed liquid, adding water acrylic modified polyurethane resin emulsion into half-finished mixed liquid, agitating to obtain mixed material and adding into leveling agent to obtain the final product. It's cheap, simple, has no environmental pollution and excellent anti-mycotic effect. It can be used in both indoor and outdoor.

The invention discloses a functional polypropylene fibre contained and fused a plurality of natural inorganic materials and polypropylene, which comprises: tourmaline, alumina, zirconium phosphate carried-Ag antibacterial agent, silicon dioxde, and titania. The preparation method comprises: breaking and mixing the materials, fusing and mixing said materials with polypropylene slice to obtain mother grain; then, using common fusion spinning method to treat said grain and slice. This product has well spinnability, high strength, and deodorization function.

The present invention provides a method for preparing mesoporous TiO2 thin films with high antibacterial and photocatalytic activities. The method involves coating onto a substrate a TiO2 sol-gel prepared from hydrolysis and condensation of titanium alkoxide in the presence of a stabilizer and thermally treating the substrate at a temperature ranging from 400° C. to 900° C. The TiO2 thin films fabricated according to the method of the present invention show two times higher antibacterial and photocatalytic activities than the conventional TiO2 thin films.

The invention relates to a preparing method for a silver-loaded silicon dioxide-chitosan compound antibacterial agent; the preparing method comprises the following steps: silver-loaded silicon of inorganic antibacterial agent is firstly prepared according to the antibacterial and bacteriostatic characteristics of the antibacterial agent; Ag-SiO2 is used as a carrier to prepare inorganic-organic compound antibacterial agent, namely, the silver-loaded silicon dioxide-chitosan compound antibacterial agent uses silicon dioxide as inorganic material, uses polymer chitosan as organic material, uses deionized water, silver nitrate, ammonia water, KH-550, glacial acetic acid, diluted hydrochloric acid, glutaric dialdehyde and absolute ethyl alcohol as agents, carries out chemical reaction by water bath synthesis, adjusts the pH value, carries out centrifugal separation, is washed, filtered and dried in vacuum, and finally the powdered product which is white, has laminated form, layered shape and crosslink structure is prepared. The preparing method has short technique process, little used equipment, rich material source and low cost; the purity of the product can be up to 97 percent, the yield of the product can be up to 98 percent, and compared with the product with single ingredient in the prior art, the antibacterial and bacteriostatic characteristics of the product can be improved by 90 percent; therefore, the preparing method of the invention is an ideal preparing method for the inorganic-organic compound antibacterial agent.

The powerful adhesive includes neoprene, grafting monomer, thickener, dispersant, adhesion promoter, catalyst, antioxidant, solvent, stuffing, etc. The present invention also discloses the preparation process of the adhesive, and the preparation includes introducing grafting monomer to neoprene molecule chain to raise the adhesion strength, selecting proper adhesion promoting resin to increase the initial adhesion force, and adopting mixed solvent to form high adhering performance. The adhesive has high solid content and excellent environment protecting performance, and has also excellent antiageing performance, high resistance to heat, oil, chemical and corrosion, high weather resistance, good mildew-proof performance, antibiotic performance, etc. and may be used for adhering timber, concrete, rubber, metal, gypsum board, brick and other building material.

The invention relates to a graphene / polyvinyl alcohol modified nonwoven fabric production method, and belongs to the technical field of textile chemistry. The method comprises the following steps: dipping a nonwoven fabric in a graphene oxide / polyvinyl alcohol composite modification solution, drying the nonwoven fabric, and reducing graphene oxide to make the surface of the nonwoven fabric covered with a layer of reduced graphene oxide in order to obtain a nonwoven fabric product with excellent hydrophilic, antibiotic, antistatic and adsorptive functions. The method is suitable for modifying polypropylene fibers, terylene, polyamide, acrylic fibers, polyethylene fibers, polyvinyl chloride fibers, polytetrafluoroethylene, polyphenylene sulfide and other nonwoven fibers, and the nonwoven fabric product obtained in the invention can be used in fields of clothes, home textiles, medical health care, air purification, sewage treatment and military matters. The preparation method has the advantages of simplicity, low cost, wide application range and high application values.

The invention relates to a nano-whisker-reinforced multifunctional diatom ooze coating. The nano-whisker-reinforced multifunctional diatom ooze coating is characterized in that 30 to 65wt% of diatomite, 0.5 to 2.5wt% of tetrapod-like nano-zinc oxide whiskers, 10 to 16wt% of superfine magnesium hydroxide, 5 to 15wt% of at least one crystalline aluminum salt, 10 to 40wt% of quartz sand, 0.5 to 1.5wt% of hydroxyethyl cellulose, 2 to 4.2wt% of one or two inorganic pigments and 0.5 to 3wt% of calcium hydroxide are mixed into the nano-whisker-reinforced multifunctional diatom ooze coating at a rotation rate of 500 to 800rpm. The nano-whisker-reinforced multifunctional diatom ooze coating has functions of resisting mildew and bacteria, purifying air in a room, and adjusting humidity. Compared with like products obtained by the existing technology, the nano-whisker-reinforced multifunctional diatom ooze coating has the advantages of strong adhesion to a wall surface, good durability, no falling-off of powder, no color fading and no cracking and falling-off, and is suitable for build interior decoration of airports, hospitals, office buildings, conference centers, hotels, villas, high-grade residential areas and entertainment places, and inner wall decoration of public places having forced flame-resistance requirements.

The invention relates to a new-type bamboo charcoal fibre blanket, belonging to the technical field of blanket processing. The blanket material comprises surface silk and base silk; the surface silk is 0.39dtex-2.7dtex DTY polyester yarn which is added by bamboo charcoal female particles while base silk is 50D-200DFDY polyester yarn, wherein, the surface silk is 60-75% of material weight while base silk is 40-25% of material weight. The manufacturing process comprises the following steps in turn: sorting, knitting and weaving, slitting, pre-dyeing treatment, heat setting dyeing, dyed fabric after treatment, napping, shaking and erecting, and natural luster finishing (shearing) finished product finalizing. The product in the invention has the advantages of bright color, superior adsorbability, antibiosis, bacteriostat and health care properties, satisfies the pursuit of 'ecological, healthy and environmental' of consumers and is an ideal home textile in modern household life.

The invention relates to a magnesium alloy micro-arc oxidation electrolyte and a micro-arc oxidation method. The electrolyte comprises phytate (or phytic acid), a calcic electrolyte, and further one or more added electrolytes as follows: carbonate, silicate, boric acid or borate, and aluminate or aluminum hydroxide. The micro-arc oxidation method comprises the following steps of: pre-treatment; micro-arc oxidation; and post-treatment. The micro-arc oxidation electrolyte provided by the invention does not contain Cr<6+>, F<-> and PO4<3->, and even if strong base used is less, so that the environment is not polluted. The film obtained by the micro-arc oxidation method is smooth in surface, good in corrosion resistance and better in antibacterial performance and biological activity. According to the method, raw materials are easily available, and the method is suitable for industrialized production.

The invention provides a method for preparing an environment-friendly floor board underlayer. The underlayer is prepared by firmly covering a composite catalyst material on a flaky adsorbing filter material. Only by evenly paving the environment-friendly floor board underlayer under a floor board so that the back side of the floor board is contacted with the environment-friendly floor board underlayer closely, the environment-friendly floor board underlayer can clear off harmful gases such as formaldehyde, benzene and the like and off flavor generated and released by the floor board and auxiliary materials, prevent damp and humidify, reject milden and rot, kill and inhibit bacteria, expel insects and prevent moths, increase vitamin-anions and far infrared rays in the air, and reduce the harm of dust mites and respirable particles. The environment-friendly floor board underlayer is advantageous to keep body healthy, prevent floor board form polluting, and prolong the service life of the floor board. The use is simple and convenient without professional constructions, the purification lasts without rebound, and the effect is fast and thorough; and experimental detections show that the degradation rate of the formaldehyde within 24 hours reaches 99 percent, the degradation rate of the benzene within 24 hours reaches 92 percent, the antibacterial rate is 99 percent, the mold prevention is at a zero level, the insect expelling rate is 92.8 percent, and the acute property is is actually at a nontoxic level by oral toxicity test.

The invention relates to a long-acting antibacterial and mildew-proof silicone adhesive and a preparation method thereof. The preparation method comprises the steps: grinding an efficient and environment-friendly organic sterilizing and mildew-proof agent and an inorganic zinc loaded zeolite antibacterial agent with a porous structure at high speed in high-speed grinding equipment and thus organically combining the organic sterilizing and mildew-proof agent and the inorganic zinc loaded zeolite antibacterial agent by using a coupling agent on the basis of comprehensively researching and analyzing the characteristics of all antibacterial and mildew-proof agent systems to obtain a novel composite antibacterial and mildew-proof agent; then, adding the obtained composite antibacterial and mildew-proof agent into a silicone adhesive material by using the traditional silicone adhesive production equipment and a conventional adhesive preparation process to finish the preparation of the long-acting antibacterial and mildew-proof silicone adhesive. The antibacterial and mildew-proof silicone adhesive provided by the invention is low in raw material cost, simple in production process, free of three wastes and capable of meeting the requirement for environment friendliness. The long-acting antibacterial and mildew-proof silicone adhesive prepared by the invention is efficient and durable in antibacterial and mildew-proof performances and capable of meeting the technical requirement for use in fields such as buildings, electronic appliances, automobiles, boats and the like.

The invention relates to a method for making conductive fabric through polyaniline-triggered chemical slivering. Fabric is soaked in a mixed solution of aniline and protonic acid, ammonium persulfate is added to the mixed solution, a reaction is carried out for 2-10 hours, and then the processed fabric is obtained after washing; the processed fabric is soaked in a silver nitrate solution, washed, dried, and then soaked in a silvering solution for being silvered for 30-60 min at the temperature of 30-40 DEG C, then the processed fabric is washed and dried, and finally the conductive fabric is obtained. According to the method, the process conditions of sensitization and activation are omitted, polyaniline and silver nitrate replace stannous chloride and palladium chloride high in price, cost is lowered, and environment pollution is reduced. The conductive fabric obtained through the method is good in conductivity, the binding strength of metal and fabric is high, the electromagnetic shielding performance is excellent, and the conductive fabric has an antistatic function, an antibacterial function and the like.

The main structure of said invented internal and external wall coating material respectively includes film-forming substance, dispersion medium, pigment filler and adjuvant, and its raw material formula is formed from (wt%) 35-55% of acrylic resin emulsion, 0.1-0.3% of dispersion moistening agent, 4-8% of titanium white powder, 4-8% of lithopone, 2-6% of talcum powder, 1.5-4.5% of nano SiO2, 1.5-4.5% of nano Tio2, 0.1-0.3% of pH regulating agent and 20-30% of water. The above-mentioned materials are stirred, ground and filtered so as to obtain the invented coating material with improved water-proofing property, contamination resistance, ageing resistance, UV ray resistance and bacteria-resisting property. Said coating material can be washed for above 11000 times, and its service life can be up to above 10 years.

The invention relates to an anti-bacteria mould-proof fragrant directional shaving board and a manufacturing process of the anti-bacteria mould-proof fragrant directional shaving board. The anti-bacteria mould-proof fragrant directional shaving board comprises a core layer and a surface layer. The surface layer is provided with a surface layer adhesive agent layer. The effective ingredients of the surface layer adhesive agent layer comprise, by weight, 10 parts of adhesive agents and 0.5-1 part of anti-bacteria mould-proof aromatic. The weight ratio of anti-bacteria mould-proof agents and aromatic of the anti-bacteria mould-proof aromatic is 2:1. The anti-bacteria mould-proof agents are a mixture of mint extractive and radix isatidis extractive. The adhesive agents are melamine adhesive agents. The aromatic is mint oil wrapped by microcapsules. The anti-bacteria rate of the manufactured directional shaving board reaches over 99.5%, the mould-proof rate reaches the zero level stipulated by the industrial standard JC / T 2039-2010, the aromaticity reaches the second level, the fragrance can be released during the whole service life of the board continuously, and no side effect exists for a human body.

A water feeding apparatus (300) has an ion eluter (100) and a shower emitter (200). The shower emitter (200) receives water via a coupling pipe (250) from the ion eluter (100), and sprays the water, in the form of a shower, onto laundry. Liquid droplets in the form of a shower are small and easy to dry, and thus produce crystals having smaller particles (with large surface areas), having more lattice defects, and easier to dissolve. With these crystals attached to the laundry, when the crystals make contact with moisture next time, the silver ion in the liquid droplets easily dissolves. Even when the laundry is made of water-repellent or hydrophobic cloth, the solution dries up on the surface of the cloth before water is repelled. Thus, even this type of laundry can benefit from the antimicrobial effect of the silver ion.

The invention discloses the method for preparation of chitosan / rectorite nano composite material used for antibacterial agent. The chitosan / rectorite nano composite material, which mainly comprises chitosan and rectorite, is made by entering chitosan intercalation into clay band. The method comprises the following steps: carrying out base exchange by natural rectorite and modifier to make organic rectorite, in the condition of stirring, adding the chitosan solution into the organic rectorite suspending liquid at twice, adding caustic soda solution, washing the solution until the neutral solution, drying, and getting the chitosan or rectorite nano composite material. Compared with the pure chitosan, the microorganism resistance and fire-resisting property of chitosan or rectorite nano composite material are better.