61results about How to "Antiseptic effect" patented technology

The invention discloses an anticorrosive polyaniline / silicon carbide / graphene composite coating and a preparation method thereof. Polyaniline and silicon carbide nanoparticles are composited through on-site polymerization firstly, then a polyaniline / silicon carbide material is coated with graphene oxide through electrostatic self-assembly, and a polyaniline / silicon carbide / graphene composite material is obtained through hydrazine hydrate reduction. Then the polyaniline / silicon carbide / graphene composite material is added to a solvent containing epoxy resin, a curing agent, a plasticizer and an antifoaming agent are added, and the anticorrosive polyaniline / silicon carbide / graphene composite coating is obtained finally. The adopted polyaniline and graphene have good electrical conductivity and can have an anticorrosive effect; silicon carbide is high in hardness and thermal stability and used for enhancing the coating performance. The prepared coating has excellent anticorrosive performance, the production process is mature and simple to operate, no complex equipment is required, and large-scale industrial production is facilitated.

The invention belongs to the technical field of lithium battery positive electrode materials, and discloses a silicon carbide sagger for a lithium battery positive electrode material and a preparationmethod thereof. The preparation method comprises a sagger substrate and a working layer pressed on the inner surface of the sagger substrate. The sagger substrate is prepared from the following raw materials in parts by weight: 60-75 parts of silicon carbide powder, 15-25 parts of clay, 5-10 parts of nanometer zirconium oxide, 5-10 parts of aluminum oxide powder, 5-10 parts of a binding agent and10-20 parts of water. The working layer is prepared from the following raw materials in parts by weight: 30-40 parts of silicon carbide powder, 20-30 parts of aluminum oxide powder, 10-20 parts of organic silicon resin, 1-10 parts of talcum powder, 1-3 parts of graphene and 2-8 parts of water. The prepared silicon carbide sagger is high in corrosion resistance, the bonding performance of an anti-corrosion layer and a sagger body is good, service life is prolonged, and recycling of the sagger body can be achieved.

The invention discloses a hydraulic support oil cylinder with an inner hole seal part treated by the adoption of a laser cladding technology. The hydraulic support oil cylinder with the inner hole seal part treated by the adoption of the laser cladding technology comprises an outer cylinder tube, an intermediate cylinder and a movable column, the intermediate cylinder is arranged inside the outer cylinder tube, an inner hole is formed inside the intermediate cylinder, the movable column is inserted into the inner hole inside the intermediate cylinder, and a gap is reserved between a rod body part of the movable column and the wall of the inner hole and filled with emulsified liquid. A guide sleeve is arranged on an opening of the inner hole and seals the gap formed by the rod body part of the movable column and the wall of the inner hole, and an anti-corrosion alloy layer is formed at the inner surface, close to the opening and making contact with the outer wall of the guide sleeve, of the inner hole by the adoption of the laser cladding treatment technology. The device can not pollute the environment at all, a coating can not fall off, the service life is long and can be prolonged substantially, cost for maintaining the oil cylinder is saved for a user, and coal exploitation efficiency is improved.

The invention relates to a graphene low-zinc heavy-duty anticorrosive paint, which includes a component A and a component B. The component B contains a curing agent, and the component A is composed ofthe following components by mass percentage: 1-15 parts of graphene, 30-50 parts of mixed resin, 0-20 parts of a basic solvent, 0-20 parts of zinc powder, 10-30 parts of filler and 1-5 parts of an assistant. Specifically, the mixed basis resin is a mixed aqueous dispersion of hydroxyl acrylic resin, acrylic resin and amino resin, or one of or a mixture of several of epoxy resin, polyester resin,polyurethane resin and alkyd resin. The paint provided by the invention has the characteristics of high weather resistance and abrasion resistance, and can be widely applied to the outer protection ofbalustrades, stand columns and other highway guardrail facilities and related traffic supporting facilities, and also can be used for protection of large engineering machinery, power transmission andtransformation facilities and other outdoor steel structures.

The invention discloses a preparation method of tea polyphenol and konjak rice noodles. The method comprises the following steps: soaking rice according to the traditional process; filtering to prepare rice noodles; taking 0-55% of prepared rice powder, 40-99% of konjac powder and 0.5-5% of tea polyphenol; adding water which is 0.4-0.7 times of the gross of all raw materials after evenly mixing; stirring into paste and then heating to 90-100 DEG C; extruding into lines after cooking, and scattering into cakes; airing, and putting the aired rice noodle cakes into hot water at 60+ / -2 DEG C to soften and scatter; putting the scattered rice noodles into the boiling water to boil until tender; putting into cold water to soak to be full, and then fishing up and airing, thus obtaining the tea polyphenol and konjak rice noodles; or adding water which is 0.4-0.7 times of the gross of all raw materials after evenly mixing the rice powder, the konjac powder and the tea polyphenol; stirring into paste; heating and cooking and then extruding into the lines, so as to obtain the tea polyphenol and konjak rice noodles. People also can timely be replenished with daily required nutrients and energy of a human body while eating the favorite rice noodles, so as to be healthy and lose weight and achieve the aims of weight reduction and health protection.

The invention discloses a casting spraying assembly, which comprises a first box body, a rail, a conical collector, a trolley, a connecting pipe, a pressurizing pump, an oil dispersion pipe, a spray head, an oil supply pipe, a second box body and an oil receiver plate, the rear end of the first box is provided with a second box, and the first box and the second box are provided with a track passing through it horizontally, and a trolley is arranged on the track, and the first box The lower end of the box is provided with a conical collector, the inside of the top of the first box is provided with an oil dispersing pipe, the lower end of the oil dispersing pipe is provided with a plurality of nozzles, and the outside of the top of the first box is provided with a pressurized pump, the pressurizing pump is connected to the oil dispersion pipe, the pressurizing pump is connected to the conical collector through a connecting pipe, the pressurizing pump is connected to the oil supply pipe, and the lower end of the second box is provided with The oil receiving plate is arranged obliquely, and the lowest end of the oil receiving plate is connected to the upper end of the conical collector. The invention has high oil utilization efficiency and fast oil immersion speed.

The invention specifically relates to a surface rust prevention fluid for a steel rail and preparation and application methods thereof, belonging to the field of rust prevention for steel rails. Technical problems to be overcome in the invention are that a conventional short-time rust preventive oil or paint is not environment-friendly enough, a coating process for the conventional short-time rust preventive oil or paint is complex and the conventional short-time rust preventive oil or paint needs long drying time and does not have adequate corrosion resistance. A technical scheme to overcome the technical problems provides the surface rust prevention fluid for the steel rail. Raw materials for the fluid comprise 100 to 150 g / L of silane, 20 to 40 g / L of water-soluble silicate, 80 to 100 mL / L of a silica sol and 150 to 200 mL / L of a styrene-acrylic emulsion, with the balance being distilled water or deionized water. The invention further provides the preparation and application methods for the surface rust prevention fluid. The surface rust prevention fluid provided by the invention has the advantages of a simple coating process, low cost and good corrosion resistance and provides a new option for surface rust prevention of the steel rail.

The invention discloses a lip protector and a preparation method thereof and belongs to the field of daily skin care. The lip protector comprises oil, aggregate, a flavor enhancer and a preservative, wherein the mass ratio of the oil, the aggregate, the flavor enhancer to the preservative is (6.5-8):(1-1.5):(0.2-0.5):(0.3-0.8); the oil comprises the following components in percentage by weight: 45-55 percent of lard oil, 15-20 percent of rapeseed oil, 20-31 percent of kardiseed oil and 5-10 percent of key fruit oil. The lip protector can moisten double lips, has a moisturizing effect, is nonirritant to lip skin, high in gas permeability, edible, long in quality guarantee period and low in cost, can provide various kinds of needed nutrition for the lip skin and maintain the lip skin deeply.

The invention relates to a processing method of frozen instant halogenated squid. The method comprises the following concrete steps of S1, soaking: cleaning cut and killed squid; then, performing soaking for 2 to 4h; S2, halogenation: putting drained squid into halogenation juice for halogenation; S3, drying: draining halogenation juice of halogenated squid; then, performing heat pump drying treatment, wherein the heat pump temperature of the heat pump drying treatment is 35 to 40 DEG C; the drying humidity is 45 to 50 percent; the air speed is 2 to 4m / s; the dryness time is 1 to 2h; S4, secondary seasoning: performing secondary seasoning on the halogenated squid subjected to heat pump drying treatment; S5, packaging and freezing: after vacuum package, conveying the halogenated squid intoa double helix freezer for freezing to reach the temperature of -18 DEG C. The processing method has the advantages that on the premise of ensuring the amusement and the convenient eating of squid products, the nutrition and health efficacies of the squid products can be effectively maintained; meanwhile, the flavor and the shelf life of the squid product can also be ensured; consumers can enjoy the delicacy and nutrition of the squid securely and relievedly.

The invention relates to the field of a coating, and discloses a preparation method of a water-based corrosion inhibition type rusted anti-rust coating. According to the invention, cellulose-based aerogel with a porous structure is prepared by adopting a freeze-drying method; water solubility of sodium molybdate and sodium tripolyphosphate is utilized, and in the process of preparing the cellulose-based aerogel, the sodium molybdate and the sodium tripolyphosphate are added, so that the sodium molybdate and the sodium tripolyphosphate which have a rusted anti-rust function are loaded on the cellulose-based aerogel; and insolubility between 8-hydroxyquinoline and water is utilized, the 8-hydroxyquinoline is fed into pore passages of the cellulose-based aerogel by adopting an ultrasonic oscillation method, so that the 8-hydroxyquinoline with a rusted anti-rust function is positioned inside the pore passages. The cellulose-based aerogel with three rusted anti-rust functional materials isfilled into water-based epoxy resin, and the rusted anti-rust materials are utilized to be chelated with metal to generate a passivation film to protect a metal matrix, so that the anti-corrosion anti-rust ability of the coating is improved greatly.

The invention relates to a traditional Chinese medicine mask. The traditional Chinese medicine mask comprises, by mass, 9.50%-13.00% of angelica sinensis, 9.00%-16.00% of atractylodes macrocephala, 8.00%-15.00% of rhizoma bletillae, 9.50%-16.00% of radix astragali, 5.50%-15.00% of ligusticum wallichii, 3.00%-6.50% of spiral seaweeds, 10.50%-20.00% of coix seeds and 5.80%-8.50% of barley green. The traditional Chinese medicine mask comprises the angelica sinensis, the atractylodes macrocephala, the rhizoma bletillae, the radix astragali, the ligusticum wallichii, the spiral seaweeds, the coix seeds and the barley green in appropriate proportion, the mutual restraint effect among the eight components can be achieved, drug property opposition side effects can be avoided, the toxin expelling and nourishing effects of the skin can be fundamentally improved, the deserved vigor of the skin can be restored, the nourishing effect can be good, the skin can be improved, and the skin will not depend on the mask. In addition, chemical preservatives do not need to be added, the corrosion resistant effect can be achieved through the characteristics of the formula itself, and the traditional Chinese medicine mask is safe to use.

The invention discloses a graphene zinc-containing epoxy anticorrosive coating preparation method which comprises the steps: firstly, preparing graphene slurry; then ultrasonically preparing graphenedispersion liquid; then adding a modifying material into the graphene dispersion liquid to obtain modified graphene dispersion liquid; then adding the modified graphene dispersion liquid into an epoxyzinc-rich primer A ingredient and perform centrifugal treatment; then extracting supernatant liquid; adding an epoxy zinc-rich primer B ingredient into the residual materials and stirring to preparea graphene zinc-containing epoxy anticorrosive coating. According to the preparation method disclosed by the invention, a preparation technology is simplified, the zinc powder content is reduced, an anticorrosive effect is improved, and the environment-friendly coating can be prepared.

A retardant is provided. The retardant is prepared through steps of A) subjecting formaldehyde, an amine and phosphoric acid to a Mannich reaction to obtain a monomer, and B) copolymerizing the monomer and acrylic acid to obtain the retardant. The retardant is prepared through copolymerizing the monomers. One molecular chain of the retardant after the polymerization contains a plurality of releasable Hs and the Hs can be slowly released in stratums, thus achieving an effect of acidifying the stratums and improving stratum corrosion capability of the admixture. The invention also provides a retardant acid working solution comprising the retardant. Test results prove that the retardant acid working solution has good slow release effects, and is turned into a spent acid after 30-90 min.

The invention relates to a traditional Chinese medicine facial mask, which comprises 9.5%-13% of Angelica sinensis, 9%-16% of Atractylodes macrocephala, 8%-15% of Radix Astragali, 9.5%-16% of Radix Astragali and 5.5% of Chuanxiong in terms of mass percentage. 15%, spirulina 3%‑6.5%, coix seed 10.5%‑20%, barley green 5.8%‑8.5%. The above-mentioned traditional Chinese medicine facial mask includes Angelica, Atractylodes Rhizoma Atractylodes Rhizome, Atractylodes Rhizoma Atractylodes Rhizome, Astragalus, Rhizoma Chuanxiong, Spirulina, Coix Seed and Barley Chlorin in appropriate proportions. Fundamentally improve the detoxification and nourishing functions of the skin itself, restore the vitality of the skin, have good nourishing effect, improve skin quality, and will not cause dependence. Moreover, there is no need to add chemical preservatives, the characteristics of the formula itself can play a preservative effect, and it is safe to use.

The invention discloses a tree-shaped artificial reef and a preparation method thereof. The tree-shaped artificial reef mainly comprises a main rod and a plurality of processed branches inserted in reserved holes of the main rod. Each processed branch includes an original branch of a preliminarily processed tree and three layers wrapping the outer side of the original branch of the preliminarily processed tree. The innermost layer is a sealing layer, the middle layer is a fiber layer, and the outermost layer is a nutrient layer. Ingredients of the three layers include tubular pile remaining slurry. The tree-shaped artificial reef has a natural ecological effect, reduces ocean currents, retains nutrients and provides a safe habitat for marine animals and marine plants. The invention also discloses the method for preparing the tree-shaped artificial reef.

The invention relates to the technical field of aluminum formworks, in particular to a recycling process of an aluminum formwork. The method comprises the following steps: firstly, preparing a certain amount of oxalic acid solution, putting the oxalic acid solution into appointed equipment, then putting the recycled aluminum formwork into the appointed equipment, soaking the aluminum formwork in the appointed equipment containing the oxalic acid solution for a certain period of time; separating concrete on the aluminum formwork from the aluminum formwork, taking out the soaked aluminum formwork from appointed equipment, putting the aluminum formwork on a draining plate, preparing a proper amount of cleaning solution and water, putting the cleaning solution and the water into stirring equipment, stirring, pouring the uniformly mixed cleaning solution and water after stirring into spraying equipment, then spraying the mixed liquid to the aluminum formwork on the draining plate through a high-pressure water gun, and further cleaning the aluminum formwork. By soaking the aluminum formwork in the oxalic acid solution, concrete on the aluminum formwork can be separated from the aluminum formwork, a worker is prevented from violently removing the concrete on the aluminum formwork, and therefore the aluminum formwork is prevented from being damaged.

The invention provides gel for resisting human papilloma virus and a preparation method thereof. The gel is prepared from the following components in parts by weight: 5-10 parts of carbomer, 0.01-0.4 part of triclosan, 1-6 parts of glycerinum, 0.1-5 parts of protein extract, 0.1-2 parts of oleum fructus bruceae, 0.01-6 parts of rhodophyta extract, 0.01-0.8 part of nipagin, 0.01-2 parts of phenoxyethanol and the balance of purified water. According to the gel, JB protein has high anti-HPV activity, and inactivated HPV is adsorbed and coated by carbomer and is discharged out of a body, so that quick repairing and regeneration of erosive tissues can be accelerated, and healing is promoted; oleum fructus bruceae has a remarkable destroying effect on HPV; carrageenan in rhodophyta extract can be used for effectively resisting human papilloma virus, helps prevent cervical cancer and other diseases caused by the virus, and can adhere to the protein of the human papilloma virus as a defense to prevent the virus from entering cervical cells.

The invention discloses an anti-corrosion paste. The anti-corrosion paste is prepared from the following components in percentage by weight: 35 to 80 percent of basic grease, 0.5 to 5 percent of high-permeability corrosion inhibitor, 0.5 to 20 percent of surfactant, 18 to 30 percent of thickening agent and 1 to 10 percent of plasticizer. The invention further discloses a preparation method of the anti-corrosion paste. The anti-corrosion paste is suitable for corrosion prevention of a concrete member in a water level change area, so that underwater construction is convenient, a water layer on the surface of concrete can be effectively replaced, pores on the surface of the concrete can be fully filled, the anti-corrosion paste has high crack followability, meanwhile, the permeable corrosion inhibitor can permeate into the concrete to effectively protect reinforcing steel bars, and the comprehensive anti-corrosion effect is excellent.

The invention provides a method for improving the anticorrosion performance of a water-based paint. The water-based paint is mixed with Fe3O4 nanoparticles or / and reduced graphene oxide to improve theanticorrosion performance of the water-based paint. The SEM image shows that the surface of a film formed by the paint mixed with the reduced graphene oxide and / or Fe3O4 has no deep micro-pores, so the reduced graphene oxide / ferriferrous oxide, reduced graphene oxide or Fe3O4 can effectively fill the micro-pores to make the surface of the film complete, and is in favor of blocking a corrosive medium from reaching the metal matrix in order to achieve a good anticorrosive effect.

The invention relates to an automobile skylight sealing strip with an anti-corrosion function. The automobile skylight sealing strip is prepared from the following components in percentage by weight: 20-40% of polyvinyl chloride (PVC), 20-30% of ethylene-propylene diene copolymer (EPDM), 10-20% of a barium-zinc stabilizing agent, 10-20% of a plasticizer, 5-10 parts of an antioxidant and 10-15 parts of an anti-corrosion agent. The automobile skylight sealing strip has the advantage that the sealing strip on an automobile skylight has a certain anti-corrosion effect in the use process as the anti-corrosion agent is added into a conventional sealing strip.

The invention provides a mechanical zinc-plating carbon steel clamping pressing type pipe fitting, which comprises a carbon steel clampinging pressing type pipe fitting, wherein a zinc tin composite plating layer is respectively arranged on each of the inner wall and the outer wall of the carbon steel clamping pressing type pipe fitting. Meanwhile, the invention also provides a preparation processof the mechanical zinc-plating carbon steel clamping pressing type pipe fitting. By using the preparation process, the mechanical zinc-plating on the inner wall and the outer wall of the carbon steelclamping pressing type pipe fitting can be realized; the anti-corrosion performance of the carbon steel clamping pressing type pipe fitting is improved.

The invention provides gel for resisting human papilloma virus and a preparation method thereof. The gel is prepared from the following components in parts by weight: 5-10 parts of carbomer, 0.01-0.4 part of triclosan, 1-6 parts of glycerinum, 0.1-5 parts of protein extract, 0.1-2 parts of oleum fructus bruceae, 0.01-6 parts of rhodophyta extract, 0.01-0.8 part of nipagin, 0.01-2 parts of phenoxyethanol and the balance of purified water. According to the gel, JB protein has high anti-HPV activity, and inactivated HPV is adsorbed and coated by carbomer and is discharged out of a body, so that quick repairing and regeneration of erosive tissues can be accelerated, and healing is promoted; oleum fructus bruceae has a remarkable destroying effect on HPV; carrageenan in rhodophyta extract can be used for effectively resisting human papilloma virus, helps prevent cervical cancer and other diseases caused by the virus, and can adhere to the protein of the human papilloma virus as a defense to prevent the virus from entering cervical cells.

The invention provides a production method of a ginger stomach-warming preserved fruit sausage. The ginger stomach-warming preserved fruit sausage comprises mung bean flour and pea flour as ingredients, starch, edible iodized salt, white sugar, maltose and honey as auxiliary materials, and acetylated distarch phosphate, spices and potassium sorbate as additives. The production method comprises thefollowing steps: selecting fresh tender ginger without damage and bad points on the surface of the tender ginger, cleaning and disinfecting the tender ginger, carrying out crushing and sugaring, adding the additives, and carrying out filling to complete production of the preserved fruit sausage. The maltose added in the ginger stomach-warming preserved fruit sausage has the effects of invigorating the spleen and replenishing QI, relieving spasm and pain, moistening the lung to arrest cough, and treating spleen and stomach QI deficiency, deficiency-cold in middle-jiao, chronic cough caused bylung deficiency, short breath and asthma and the like; the honey has a regulating effect on gastrointestinal functions, and can enable gastric acid secretion to be normal; the honey can also relieve nervous tension, promote sleep and have a certain pain relieving effect; and a vacuum sugaring process is adopted, sugaring and pickling are carried out in a negative pressure state, the sugaring and pickling time can be greatly shortened, the time is effectively shortened, the cost is effectively reduced, and the yield is effectively increased.

The invention discloses a graphene zinc-containing epoxy anticorrosive coating preparation method which comprises the steps: firstly, preparing graphene slurry; then ultrasonically preparing graphenedispersion liquid; then adding a modifying material into the graphene dispersion liquid to obtain modified graphene dispersion liquid; then adding the modified graphene dispersion liquid into an epoxyzinc-rich primer A ingredient and perform centrifugal treatment; then extracting supernatant liquid; adding an epoxy zinc-rich primer B ingredient into the residual materials and stirring to preparea graphene zinc-containing epoxy anticorrosive coating. According to the preparation method disclosed by the invention, a preparation technology is simplified, the zinc powder content is reduced, an anticorrosive effect is improved, and the environment-friendly coating can be prepared.

The invention discloses a tree-shaped artificial reef and a preparation method thereof. The tree-shaped artificial reef mainly comprises a main rod and a plurality of processed branches inserted in reserved holes of the main rod. Each processed branch includes an original branch of a preliminarily processed tree and three layers wrapping the outer side of the original branch of the preliminarily processed tree. The innermost layer is a sealing layer, the middle layer is a fiber layer, and the outermost layer is a nutrient layer. Ingredients of the three layers include tubular pile remaining slurry. The tree-shaped artificial reef has a natural ecological effect, reduces ocean currents, retains nutrients and provides a safe habitat for marine animals and marine plants. The invention also discloses the method for preparing the tree-shaped artificial reef.

The invention provides a mechanical zinc-plating carbon steel clamping pressing type pipe fitting, which comprises a carbon steel clampinging pressing type pipe fitting, wherein a zinc tin composite plating layer is respectively arranged on each of the inner wall and the outer wall of the carbon steel clamping pressing type pipe fitting. Meanwhile, the invention also provides a preparation processof the mechanical zinc-plating carbon steel clamping pressing type pipe fitting. By using the preparation process, the mechanical zinc-plating on the inner wall and the outer wall of the carbon steelclamping pressing type pipe fitting can be realized; the anti-corrosion performance of the carbon steel clamping pressing type pipe fitting is improved.

The invention relates to the field of polymer materials, and concretely relates to a vegetable oil-based metal anticorrosion coating completely using a biomass substance and having the advantages of strong adhesion with steel, good anticorrosive effect, renewability, safety, economical property, moderate curing speed, good weather resistance, wide application range, greenness, environmental protection and excellent comprehensive performances, and a preparation method thereof. A preparation formula of the coating includes a component A and a component B according to a mass ratio of 5:1 to 5:4.The component A and the component B are uniformly mixed according to the above mass ratio, and then can be pasted to a substance for preventing adhesion, and the two components are separately stored when not used.

The invention provides a plate connection structure used in the tensioning mechanism of prestressed concrete members, which includes a plate body provided with a plurality of through holes, the through holes run through the plate body and are distributed at even intervals along the end surface of the plate body; The bolts are in one-to-one correspondence with several through holes, the connecting bolts are inserted into the through holes, and the outwardly extending part passes through the through holes, inserted into the corresponding tension nuts, and fixedly connected with the tension nuts; the tension nuts are opposite to the plate body An abutting portion connected with the connecting bolt and suitable for abutting against the end surfaces of the tension nuts is interposed between the end surfaces of the tension nuts. The technical scheme makes use of the protruding abutting portion formed in the connection structure to sink the tension nut into the prestressed concrete component without being exposed during the forming process of the prestressed concrete component.

The invention relates to a traditional Chinese medicine facial mask. The traditional Chinese medicinal facial mask comprises 9.50%-13.00% of Angelica sinensis, 9.00%-16.00% of Atractylodes macrocephala, 8.00%-15.00% of Baiji, 9.50%-16.00% of Radix Astragali, and 5.50%-16.00% of Rhizoma Chuanxiong. 15.00%, 3.00% to 6.50% of spirulina, 10.50% to 20.00% of coix seed and 5.80% to 8.50% of barley green. The above-mentioned traditional Chinese medicine facial mask includes Angelica, Atractylodes Rhizoma Atractylodes Rhizome, Atractylodes Rhizoma Atractylodes Rhizome, Astragalus, Rhizoma Chuanxiong, Spirulina, Coix Seed and Barley Chlorin in appropriate proportions. Fundamentally improve the detoxification and nourishing functions of the skin itself, restore the vitality of the skin, have good nourishing effect, improve skin quality, and will not cause dependence. Moreover, there is no need to add chemical preservatives, the characteristics of the formula itself can play a preservative effect, and it is safe to use.