244 results about "Cotton gauze" patented technology

The invention discloses a fine-particle-proof mask with chitosan and nano-zinc oxide and a manufacturing method of the fine-particle-proof mask. The mask is formed by four layers of materials, the four layers of materials include two function layers which are an activated carbon non-woven cloth layer and a degreasing cotton gauze function layer with the chitosan and the nano-zinc oxide. The mask has the functions of absorbing fine particles, resisting bacteria and eliminating peculiar smells, can effectively achieve the aims of preventing the fine particles from entering a human body and preventing microorganism and organic pollutants entering the mask from causing secondary pollution, and meanwhile has good permeability. The manufacturing method of the mask is simple, sources of the materials are wide, and the mask is suitable for industrial production.

The invention provides a 3D-printing wound dressing material based on silk microsphere bio-ink and a preparation method thereof. The preparation method includes the following steps: transferring silkmicrosphere bio-ink, which includes silk protein microspheres coating aspirin, silk protein water solution, ultraviolet initiator and polyvinyl alcohol ester, into a syringe of a 3D-printing machine;with a cotton gauze as a base printing cloth, printing the surface of the cotton gauze with the silk microsphere bio-ink according to a periodically circulated cross-network structure model; and rapidly curing and shaping the 3D-printing wound dressing material under ultraviolet irradiation. The product is based on 3D-printing technology, wherein the formed cross-network structure contains regularly arranged silk microspheres, and the silk microsphere bio-ink coating layer cures on the surface of the cotton gauze and does not completely penetrate through the cotton gauze. The 3D-printing wounddressing material has good mechanical performance and biocompatibility and excellent slow-release performance, can protect a wound for a long time and can accelerate healing of the wounding.

Provided is a pressure bandage suitable for achieving complete hemostasis at a venipuncture site. The bandage includes an adhesive backing, upon which a non-compressible, absorbent pad is centrally affixed. The backing is inelastic, which along with the non-compressible pad, provides a non-resilient dressing capable of applying the pressure necessary to achieve hemostasis. The pad typically comprises a plurality of plies of dense cotton gauze. The pressure bandage may be applied by one individual, quickly and efficiently, at a low cost.

The invention discloses an antibacterial cotton cloth and a preparation method thereof. The antibacterial cotton cloth is produced by the following method and the method comprises the following steps: adding the silver-carrying hydroxylapatite, sodium hexametaphosphate, deacetylated chitin and citric acid into the water to form a solution; placing an absorbent cotton cloth into the solution prepared by the step (1) for padding and the residual padding rate is 60-100%, then pre-baking for 1-3 minutes at the temperature of 80-100 DEG C and then baking for 1-4 minutes at the temperature of 130-170 DEG C, therefore, the antibacterial cotton cloth can be produced. The invention adopts the silver-carrying hydroxylapatite which has broad antibacterial spectrum and good compatibility with the human body as the antibacterial finishing agent, therefore, the cloth is highly safe; the molecule of the silver-carrying hydroxylapatite contains a hydroxy base group that can produce acting force with the cellulose molecule, thus being capable of improving the binding strength between the antibacterial finishing agent and the cotton gauze; and the cloth has good washing fastness; The antibacterial cotton cloth of the invention contains antibacterial finishing agent that can kill or restrain the growth of the bacteria, and simultaneously keeps the good permeability, moisture absorption property and softness of the cotton cloth.

The invention discloses a method for manufacturing soybean and tomato sauce. The soybean and tomato sauce is prepared from the ingredients of soybeans, tomatoes, flour, edible salt, bruised ginger and pepper of which the weight ratio is 50:100:32:18:3:1. The manufacturing method comprises the following steps that high-quality soybeans are selected, impurities are removed, the soybeans are washed, are soaked in clear water for more than ten hours and are pulled out of the water, and the water is drained off; well-soaked soybeans are put into a pot and are steamed for three to five hours until the soybeans can be in the form of powder when being kneaded by hand; the steamed soybeans are cooled, when the temperature descends to 30-36 DEG C, the flour is put into the soybeans, the soybeans and the flour are evenly stirred and are then covered with cloth, are placed in a position with the room temperature ranging from 28 DEG C to 32 DEG C and are fermented, yellow-green mildew grows on the soybeans in five to seven days, and the soybeans are dried in the sun; the tomatoes are scalded, are pulled out, are peeled, are cut and are put into the sundried soybeans, the bruised ginger, the pepper and the edible salt are added to the soybeans, the soybeans, the tomatoes, the bruised ginger, the pepper and the edible salt are evenly stirred, are put into a clean jar, are covered with cotton cloth, are exposed in the sun and are stirred once or twice a day, sauce fragrance can be smelt in fourteen days, and when turning red and yellow, the sauce can be eaten. The method for manufacturing the soybean and tomato sauce has the advantages of being red and yellow in color and salty, tasty and unique in taste and having tomato flavor.

The invention relates to the technical field of new materials and especially relates to a high-effective filter layer body for a dust mask, wherein the filter layer body includes the following structures arranged successively from exterior to interior: a nonwoven outer layer; an aloe mannan porous membrane layer; a composite filter layer; an aloe mannan nanoporous inner membrane layer; and a pure-cotton gauze inner layer. The composite filter layer is formed by blend-weaving main yarn and sub-yarn, wherein modified coffee charcoal/polycarbonate composite coffee charcoal fibers are subjected totreatment with a copper salt treating agent, and treatment with a functional negative oxygen ion additive solution to obtain the composite coffee charcoal fibers as the main yarn, and allyl hydantoinnanofibers are the sub-yarn. In the application, the filter layer body is high-effective in dust removal, and has beneficial electromagnetic effects of irradiating far-infrared ray, shielding electromagnetic wave, eliminating static electricity, preventing ultraviolet ray and the like, and can be applied to special application fields such as high-altitude cold regions, large electromagnetic radiation places, etc.

A soft bite block device for preventing contact between upper and lower teeth of an anesthetized patient. The device includes an elongate roll of cotton gauze encircled by permeable tape so as to maintain the rolled gauze as a monolithic structure. The device is disposable, absorbent and aseptic or sterile. The device is contained within an aseptic or sterile package for the protection of the patient.

The invention relates to a large-scale high-density wood-based material. The blank of the large-scale high-density wood-based material is jointly formed by wood veneer from quick growing species of trees or salix psammophila wicker from shrubs, net-shaped cotton gauze and phenolic resin. By means ofThrough a method for manufacturing the large-scale high-density wood-based material through microwave heating, pressing and gluing, the blank undergoes the five procedures including pre-pressing, heating softening, pressing densifying, heating solidifying and pressure keeping cooling in a vertical and horizontal integrated microwave heating press and then can be manufactured into the large-scale high-density wood-based material of 2500mm-30000mm*400mm*300, the density of the material is larger than or equal to 0.7 g/cm<3>, and the mechanical indexes of the material can meet various index requirements of building materials. Thus, an environment-friendly and energy-saving wood engineering structure material is provided for the building industry, favorable support is provided for developing multi-storey wood structure houses, and the large-scale high-density wood-based material is favorable for protecting natural forest resources and controlling desert.

The invention relates to a physical-chemical method for modifying ordinary medical degreased cotton gauze, which aims to improve the adsorption property and antibacterial property of the medical cotton gauze. The method mainly comprises the following technical steps of: degreasing the cotton gauze; swelling the degreased cotton gauze with high-concentration caustic soda; washing the swollen cotton gauze with hot water; neutralizing the washed cotton gauze with an acid; washing the neutralized cotton gauze with cold water; performing antibiotic finish on the washed cotton gauze with a pomegranate rind extract serving as a natural antibacterial agent; refrigerating the treated cotton gauze at a low temperature; and performing freeze drying on the refrigerated product. After loose cotton fiber is swollen by concentrated caustic soda solution (mass percent concentration is between 20 and 28 percent), gaps in the fiber are increased and enlarged, and tight macromolecules become loose, so that antibacterial active ingredients in the pomegranate rind extract which is safe, nontoxic and low-cost can be adsorbed on the cotton fiber, and the antibacterial property of the cotton gauze is improved. Drying is performed by freeze drying technology instead of the conventional drying or air drying, so that gaps formed in the swelling and refrigerating processes of the cotton fiber can be kept fully, and the adsorption property of the cotton fiber is improved.

The invention relates to cotton gauze sanitary towel which is immersed in or sprayed with Chinese medicinal herbal plant liquid. The Chinese medicinal herbal plant liquid for immersing or spraying the sanitary towel is prepared from Chinese medicinal herbal raw materials such as nacre, polygonum paleaceum wall, garden burnet root, common ducksmeat herb, cyrtomium rhizome and the like and water according to a ratio; and the cotton gauze sanitary towel is immersed in or sprayed with the Chinese medicinal herbal plant liquid, and after liquid medicine is absorbed by the sanitary towel fully, the sanitary towel is dried and thus, the Chinese medicinal herbal plant liquid cotton gauze sanitary towel is obtained. The Chinese medicinal herbal plant liquid cotton gauze sanitary towel has the effects of resisting bacteria, disinfecting, killing insects, relieving itching, dissolving stasis, and relieving pain, clearing heat, detoxicating, activating meridians and promoting blood circulation, regulating qi and blood, smoothing menstrual period and the like, can balance the pH value of female vaginae effectively and inhibit bacterial breeding, and has the excellent treatment effect of abnormal menstruation, dysmenorrheal and pudendal pain, pruritus vulvae, swelling, pudendal hygro-erosion, peculiar smell and the like which are caused by multiple vulvar diseases. Except for the menstrual period, the Chinese medicinal herbal plant liquid cotton gauze sanitary towel also produces the obvious curative effect on various common gynecological diseases when worn at ordinary times, and achieves the effects of treatment with external application and positive prevention.

The invention relates to an electric respirator which can protect a respiratory system by intercepting, filtering, adsorbing and purifying dust and harmful gases and has pressurizing, heating, cooling, perfuming and medicating functions. The electric respirator consists of an outer respirator, seven filtering materials, an electric fan, an inner respirator, a wind baffling plate and a power cord. A basic component formed by combining the electric fan and the inner respirator has capabilities: 1, being combined with cotton gauze or sponge for baffling and filtering granules, fine sands and dust; 2, being combined with an activated carbon bag for filtering and absorbing the harmful gases, viruses, bacteria, microbes and pestilential and fishy odors; 3, being combined with a heat storage bag and a cold storage bag for adjusting the inhalation temperature; 4, being combined with a sachet for distributing beneficial gases; and 5, being combined with a Chinese herbal medicinal bag for treating various respiratory and systemic diseases through breathing administration.

The invention discloses a production method of water-soluble hemostatic gauze. The production method comprises the following steps: carrying out sterilizing process on natural full-cotton gauze after preprocessing, sitallization processing, cross linking reaction, washing and drying, wherein the preprocessing is realized by modifying the natural full-cotton gauze by using ethanol or acetone; the sitallization processing is carried out for 1-2h by adopting a sodium hydroxide solution under the condition that the temperature is 20-30 DEG C and the rotational speed of a reaction vessel is 15-20 r/min; and the cross linking reaction is carried out for 1-2h at the temperature of 25-30 DEG C by adopting an ethanol chloroactic acid solution. The water-soluble hemostatic gauze has favorable functions of physical hemostasis, chemical hemostasis and physiological hemostasis, can rapidly realize hemostasis and diminish inflammation without medicaments, also prevent operation conglutination and be finally decomposed in the body to form monosaccharide absorbed by a human body.

The invention discloses a high-sensitivity large-strain flexible strain sensor and a preparation method thereof. The method comprises: firstly preparing acidified multi-walled carbon nanotubes, and then ultrasonically preparing acidified multi-walled carbon nanotube/graphene oxide suspension, then taking absorbent cotton gauze as a template, tightly covering the absorbent cotton gauze with acidified multi-walled carbon nanotube/graphene oxide by using a vacuum extraction process, and preparing by using a gradient temperature variation technology to obtain a multi-walled carbon nanotube/graphene/carbonized absorbent cotton gauze three-dimensional hybrid net-like material, and finally compounding and curing with an elastomer emulsion to obtain the high-sensitivity large-strain flexible strain sensor. According to the high-sensitivity and large-strain flexible strain sensor disclosed by the invention, the conditions of the preparation method are mild, the cost is low, the repeatability ishigh, and the strain sensor has excellent deformation capability, is high in sensitivity and wide in strain range, and is used for wearable electronic equipment.

The invention discloses the colorful decoration, jet drawing, canvas and their preparation technologies. The process canvas takes cotton gauze as substrate and coats setting colored slurry layer and setting mucilage layer on them in turn. The technology contains the following steps: (1) mix colorful slurry: mix white emulsion and talc in proportion, add lithopone, defoamer, multi-functional industry promoter and graining paste and stir then uniformly. Add some specific gravity of graining paste to get colorful slurry. (2) Mix mucilage: mix white emulsion and water, add some proportion of colorful plates and stir uniformly. (3) Coat the two mixed slurries onto the cotton gauze uniformly by a coater to prepare the process canvas. Complete high temperature setting by using the coater under 100-200 degree C. The two mixed slurries can accrete on the cotton gauze uniformly by the three sizing processes. The products are colorful technology canvas, which have bright and colorful exteriors. The products processed by the special technology are uneasy to decolor.

The invention discloses a method for increasing the seedling survival rate of mucuna sempervirens, belonging to the field of plant breeding. The method comprises the steps of collecting seeds in the last ten-day period of October, storing in sand at normal temperature; soaking the seeds in clear water, selecting the seeds sinking to the bottom, removing seeds floating on the water; soaking the seeds selected through cleaning; soaking for 2h by using 0.5 percent potassium permanganate; forming a hole in the just middle part of the hilum on the side surface of each seed by splitting; flatly laying the treated seeds on a wet cotton gauge for carrying out seed stratification; peeling seed coats of the germinated seeds; when the seeds are sown, setting up an overshadowing shed in a sowing land. According to the method, the seeds are germinated through steps of seed soaking, disinfecting, cleaning, germination accelerating and the like, thus the germination period is shortened, and the purposes of aligning and strengthening of seedlings, high bud ratio and high survival rate of transplanting are achieved.

A preparation method of an anti-haze mask includes the following steps of firstly, soaking activated carbon fabric and pure cotton gauze in a sterilize composition, and taking out the activated carbon fabric and the pure cotton gauze to be dried for standby application; secondly, evenly stirring a filter material composition and deionized water according to the weight ratio of 1 to 10, conducting heating till the temperature is 40 DEG C, putting in non-woven fabric, soaking the non-woven fabric in liquid to adsorb liquid, and taking out the non-woven fabric to be dried; thirdly, overlapping the non-woven fabric, the pure cotton gauze, the activated carbon fabric, the non-woven fabric and the pure cotton gauze in sequence from outside to inside; fourthly, conducting stitching, trimming and cutting on the mask, heating the mask in an oven, and taking out the mask to be cooled to obtain the anti-haze mask. The base material of the mask is processed through the sterilize composition, and therefore the mask has a sterilizing function and wear safety is improved; the sterile composition in the anti-haze mask contains selected traditional Chinese medicine components, has the sterilizing function, and can remove odor, keep fragrance of flowers and grass, and improve physical and mental joy when the mask is worn.

The invention discloses a compound aloe vera polysaccharide gel antiseptic dressing for treating burns. The compound aloe vera polysaccharide gel antiseptic dressing is formed by combination of medical cotton gauze serving as a carrier and compound aloe vera polysaccharide gel serving as a load. The compound aloe vera polysaccharide gel antiseptic dressing has the advantages of being environmentally friendly, natural, safe, harmless, remarkable in burn treating effect, capable of being absorbed quickly, stable and durable in efficacy, convenient to carry and transport and the like, the utilization rate of traditional Chinese medicine materials is increased, medical requirements are met, and the clinical application range of the antiseptic dressing is widened.

The invention relates to a macadamia shell extract and an application thereof, belonging to the technical field of natural plant processing and application. The macadamia shell extract in the invention can be obtained by the following steps: selectively grinding macadamia shell into 50-100 meshes, and baking for 5-24h on the constant temperature of 25-150 DEG C; extracting by 95% ethanol solution, wherein the weight ratio of the solution to the macadamia shell is 5:1, and refluxing for 17h on the condition of constant temperature; and filtering by a filtering method at the temperature of 35-60 DEG C, filtering until filtrate is clear and transparent by a 300-mesh cotton gauze, concentrating to be extractum to obtain the extract. The macadamia shell extract in the invention can be used as an additive to manufacture tobacco products. The invention has the beneficial effects that the macadamia shell extract can increase fragrance for tobacco products, endow tobaccos with unique note and opens up a new application filed for the macadamia shell extract.

The invention belongs to the technical field of medical devices, in particular to a superabsorbent medical absorbent cotton gauze and a preparation method thereof. The highly water-absorbing medical absorbent cotton gauze of the present invention is formed by blending seaweed fibers and cotton fibers. The seaweed fibers have good softness, high comfort in use, good antibacterial effect, high hygroscopicity and gelation, and good overall ease of removal. , high oxygen permeability, excellent biocompatibility, and excellent biodegradation and absorption; after the seaweed fiber contacts with wound exudate or blood, it can exchange Na+/Ca2+ ions with the exudate, release Ca2+, and accelerate the coagulation process. Form a layer of stable mesh gel on the surface of the wound, create a microenvironment (slightly acidic, anaerobic or hypoxic, and moderately humid) for the wound that is conducive to tissue growth, and then promote wound healing; the preparation method is simple in process and mild in condition , low production cost, no pollution to the environment, and environmentally friendly.

The invention relates to a method for extracting cotton fibers from waste elastic cotton gauze, which comprises the following steps: (1) wetting waste elastic gauze at room temperature; (2) rinsing; (3) stewing at high pressure and high temperature; (4) rinsing again, and removing spandex; (5) dewatering; (6) airing; (7) cutting off the waste cotton gauze; (8) opening; and (9) carding to obtain cotton fibers. By extracting cotton fibers from waste elastic cotton gauze, environmental pollution is reduced and waste cotton fibers are changed into useful materials, thereby having great economical efficiency and social benefits.

The invention discloses an anti-bacteria wear-proof skid-resistant ceramic, which is prepared from the following raw materials in parts by weight: 5-20 parts of anti-bacteria wear-proof skid-resistantmaterial and 80-95 parts of basic plain blank, wherein the anti-bacteria wear-proof skid-resistant material is prepared from the following ingredients based on the content of the anti-bacteria wear-proof skid-resistant material: 5-20% of silicon nitride, 15-35% of silicon carbide, 30-55% of nanometer titanium dioxide and 15-25 parts of nano-zinc oxide. Water is added into formula materials to blend into glaze slip, the mixture is subjected to sieving and ball mill mixing to be evenly mixed, the obtained mixture is sprayed and formed on a plain blank model, patterns, including concave-convex surface grids and the like are pressed on the surface of the plain blank by cotton gauze, and the obtained product is subjected to glaze firing and cooled to room temperature to obtain the anti-bacteria wear-proof skid-resistance ceramic. The anti-bacteria wear-proof skid-resistance ceramic has anti-bacteria, wear-proof and skid-resistant effects and can be widely applied to fields including dailyceramic, building decoration and the like, and ceramic ageing can be effectively delayed.

The invention relates to the technical field of medical cotton gauzes, and discloses a preparation method of a medical cotton gauze with strong water absorption capacity. The preparation method comprises: S1, carrying out puffing pretreatment on a cotton gauze; S2, carrying out carboxymethylation modification treatment on the pre-treated cotton gauze by using sodium hydroxide and chloroacetic acid, wherein a molar ratio of sodium hydroxide to chloroacetic acid is 2-3:1, and a mass ratio of chloroacetic acid to cotton gauze is 1.5-2:1; and S3, carrying out primary water washing, wherein washingis performed 3-5 times with water. According to the present invention, through the high water absorption treatment, the prepared medical gauze has good water absorption performance, has the water absorption rate of more than 400%, and can provide the moist environment for the wound, such that the skin cannot be easily damaged when the gauze is removed from the wound so as not to cause secondary bleeding and so as not to inconveniently use caused by the secondary wound sticking.

The invention discloses a preparation method of an environmentally friendly sticky dedusting cloth. The preparation method comprises the following steps of 1, weighing raw materials, 2, adding water into a container, adding glue, a diluent, an anti-curing agent and a humidizer into the container, and stirring well to an impregnating agent, and 3, putting a defatted fine-bleached pure cotton gauze into a press, pouring uniformly the impregnating agent into the press, removing excess impregnating agent by a compression roller, and uniformly spreading out the defatted fine-bleached pure cotton gauze impregnated with the impregnating agent in an airing room to carry out natural volatilization airing to obtain the environmentally friendly sticky dedusting cloth. The impregnating agent adopted by the preparation method of the environmentally friendly sticky dedusting cloth comprises mainly polyisobutene and has the advantages of strong effects of adsorbing and removing dust on object surfaces, no peculiar smell and no damage on human bodies. When a surface of a metal object such as an automobile is treated by the environmentally friendly sticky dedusting cloth prepared by the preparation method and then is coated with paint, appearance quality of the surface can be improved greatly.

The making process includes mixing nano carbon material and volatile solvent to compound solution with dispersed nano carbon material of 3-50 g in each liter, soaking cotton gauze in the solution or brushing the solution to the cotton gauze, and drying to obtain the cotton fabric. The cotton fabric has virus and bacteria killing function greatly higher than that of other active carbon material.The present invention adopts fibrous carbon nano material, which is twisted to cotton fabric and has great adhesion, high durability and other advantages compared with granular carbon nano material and other kind of carbon nano material.