39results about How to "Good antibacterial performance" patented technology

The invention relates to a method for preparing a finishing agent of a modified nano titanium dioxide coating layer of an electromagnetic shielding fabric. The technical problem of the invention to be solved is that the method for preparing the finishing agent of the modified nano titanium dioxide coating layer of the electromagnetic shielding fabric is provided, so that the electromagnetic shielding fabric has excellent performance of ultraviolet ray resistance, antibacterium, self-cleaning and the like, and the original characteristic of low surface resistance can be maintained at the same time. The technical scheme for solving the problem is that nano TiO2 is modified by a special process, and then the modified nano TiO2 is mixed uniformly with resin and a cross-linking agent according to the proportion, so that the finishing agent of the modified nano titanium dioxide coating layer of the electromagnetic shielding fabric is obtained. The invention can be used for the textile industry of the electromagnetic shielding fabric.

The invention discloses a compound fermented traditional Chinese medicine for preventing and treating chicken salmonellosis. The compound fermented traditional Chinese medicine is prepared from the following components in parts by weight: 45-60 parts of Chinese pulsatilla root, 20-40 parts of atractylodes macrocephala, 10-30 parts of coptis, 10-30 parts of phellodendron amurense, 5-15 parts of clove, 5-20 parts of agastache, 40-60 parts of dandelion, 10-30 parts of radix sophorae flavescentis, 2-15 parts of gentian, 10-30 parts of purslane, and 5-20 parts of radix paeoniae alba. The traditional Chinese medicine composition is prepared by the following steps: smashing the components in ultrasound; adding fermented culture medium and compound bacteria liquid; conducting enclosed anerobic fermentation at 36-37 DEG C for 12-14 h; adding a stabilizer in the fermented product; conducting vacuum low-temperature drying. The traditional Chinese medicine composition prepared from microbe fermentation acts with the microbe, is converted into components easy to be ingested and utilized by bodies, accelerates treating speed, improves curative effect, and micro-ecology environment of bodies, improves animal food return rate and performance trait, is used for preventing and treating chicken salmonellosis, can effectively relieve the symptom of diarrhea of chicken, eliminates or remarkably relieves inflammatory pathological injury of gastrointestinal tracts and cloaca, relieves potential safety hazards caused by chemical drugs, and improves safety of pharmacy.

The invention provides a liquid band-aid and a preparation method thereof. The liquid band-aid consists of a film-forming agent, a solvent and bio-active glass. According to an embodiment, the liquidband-aid provided by the invention has functions of preventing wound infection, protecting wounds and water-proofing; and the liquid band-aid is applicable to protection of scratched and surgically sutured sites, skin allergy, scratched hangnails, cracks, chapped skin, small tool marks, scratched parts due to mosquito bites, rapid removal of blood crusts, scars and the like.

The invention discloses a chitosan hydrogel for an antibacterial dressing and a preparation method thereof. The chitosan hydrogel for the antibacterial dressing comprises, by weight, 2 to 6 parts of chitosan, 5 to 20 parts of a water-soluble monomer, 1 to 5 parts of an antibacterial agent polyhexamethyleneguanidine hydrochloride, 0.015 to 0.1 part of a cross-linking agent, 1 to 5 parts of a condensing agent, 1 to 5 parts of an activator, 0.1 to 0.5 part of an initiator and 109 to 145 parts of dimethyl sulfoxide. The preparation method comprises the following steps: introducing a carboxyl group on chitosan in the manner of free radical polymerization; subjecting the carboxyl group introduced on chitosan and the antibacterial agent polyhexamethyleneguanidine hydrochloride to an amidation reaction by using the condensing agent and the activator; and uniformly mixing chitosan for the antibacterial dressing with the cross-linking agent and pouring an obtained mixture into a die for a reaction so as to obtain the hydrogel with good drug resistance, good antibacterial property, a lasting antibacterial effect, high water absorption and good mechanical properties.

A novel chimney purifier relates to a chimney environmental protection purifier, and purifying liquid is stored in a gas dissolving tank which is provided with a liquid feeding port, an exhaust gas inlet pipe and a mist outlet duct, wherein the mist outlet duct is arranged at upper portion of the gas dissolving tank, the mist outlet duct leads to a mist purification pot which is provided with an air purification pipe at top and a residual liquid reflux pipe at bottom. The residual liquid reflux pipe leads to the gas dissolving tank; the bottom of the gas dissolving tank is provided with a discharge pipe; and the top of the discharge pipe is provided with a blowoff valve. In addition, the interface of the exhaust gas inlet pipe in the gas dissolving tank is arranged under the liquid level; the highest location of the exhaust gas inlet pipe exceeds the liquid level in the gas dissolving tank; and the purifying liquid is edible vinegar. The invention possesses the following substantial effects: the novel chimney purifier is arranged in the central section of a chimney to treat exhaust gas effectively, and possesses functions of dust removal, and smoke elimination. The invention possesses simple structure, low production cost and use cost, and convenience for design, making, and popularization.

The invention discloses a micro-aperture medical packaging paper surface drying device, which uses coniferous wood and broad-leaved wood as main raw materials, and the fiber ratio of leafy wood and broad-leaved wood is 75%-85% for coniferous wood and 15% for broad-leaved wood. %‑25%, and then separately beat the coniferous wood and hardwood raw materials, and analyze the microstructure of paper and raw materials through imported scanning electron microscopes in time, and then perform surface sizing and drying operations. This invention adopts new technology In-depth analysis and research on products and raw materials in the research process, the introduction of advanced imported scanning electron microscopes, through the microstructure analysis of paper, raw materials, etc., and the determination of paper porosity and other means to study fiber selection, the hardwood fiber The dosage has been increased by 6%-10%, thereby improving the uniformity of the pore size distribution of the dialysis paper. The cumulative distribution of the 0.23μm-3.2μm pore size range is more than 90%, and the maximum pore size does not exceed 5.0μm, which can effectively block the penetration of bacteria.

The invention relates to a bacterial cellulose composite dressing, which is prepared by soaking a composite material composed of bacterial cellulose and non-woven fabrics or woven fabrics in an antibiotics-containing water solution. The bacterial cellulose composite dressing is prepared by following steps: choosing bacterial strains capable of secreting bacterial cellulose to made into a seed mash, then evenly dropwise adding the seed mash on non-woven fabrics or woven fabrics, which have been subjected to a sterilization treatment, adding a small amount of fermentation culture medium for cultivation of 12 to 48 hours, then adding fermentation culture medium, cultivating for 3 to 6d, taking out the fermentation products, and finally subjecting the fermentation products to a purifying treatment so as to obtain the bacterial cellulose composite non-woven fabrics or woven fabrics. The preparation method has the advantages of simple technology, and convenient operation, and is capable of preparing bacterial cellulose wound dressings with various functions according to the needs.

The invention discloses a manufacturing method of a silk-bamboo-cotton towel, comprising cotton blending, spinning, bleaching and dyeing, post-treatment, and sewing and classification. The method is characterized in that: 1) cotton blending: wherein, spun silk accounts for 22 percent of the total weight of blending cotton, bamboo fibre accounts for 36 percent, cotton fiber accounts for 42 percent; 2) spinning: after spinning, the cotton fiber is distributed in the outer layer, the spun silk is distributed in the middle, and the bamboo fibre is distributed in the inmost layer; 3) bleaching anddyeing technology processing; 4) post-treatment: a hydrophilic softener is adopted for post-treatment. The invention solves the problems of bleaching, dyeing and post-treatment technologies of blending products, in particular to that of the blending products of protein fiber and cellulose fiber, and solves the contradict that a technique being suitable for processing cotton can damage silk fiber and a technique being suitable for processing silk can not ensure the water absorption of cotton.

The invention discloses a preparation method of a bacterial cellulose composite chitosan moist antimicrobial dressing, and relates to medical equipment and the technical field of a preparation of the medical equipment. The preparation method comprises the following steps that a seed mash prepared from activating a strain is dropped on a non-woven fabric or a woven fabric, and a small amount of fermentation culture media are added to be cultured for 12 to 48 hours, then the fermentation culture media are supplemented, and culturing is carried out for 3 to 6 days, and a fermentation product is taken out, the fermentation product is purified to obtain a bacterial cellulose composite non-woven fabric or a woven fabric membrane material, and an electrostatic spinning method is used for ejecting a chitosan solution from a spinneret, trickles of the ejected chitosan solution are ejected to the bacterial cellulose composite non-woven fabric or the woven fabric membrane material containing anhydrous ethanol and / or water, finally the bacterial cellulose composite chitosan moist antimicrobial dressing is obtained after the bacterial cellulose composite non-woven fabric or the woven fabric membrane material containing anhydrous ethanol and / or water is treated. The preparation method disclosed by the invention is simple and easy in preparation processes, convenient to operate, and low in cost, and the prepared moist antimicrobial dressing can cure chronic unhealed traumas, pressure acute refractory wounds, burns, and a large area of soft tissue defects and / or infections.

The invention discloses a medical non-woven material free of bag breaking and high in bacterium blocking performance and a preparation method thereof, and relates to the technical field of medical fiber materials, and the preparation method of the medical non-woven material comprises the steps: spunbond cloth is prepared; after a melt-blown raw material melt is placed in a conical annular airflow gap formed by inner ring airflow and outer ring airflow, the melt-blown raw material melt is treated through a texturing treatment space to form melt-blown multi-fluff fibers, the melt-blown multi-fluff fibers are evenly received, and melt-blown cloth is obtained; the spunbond cloth and the melt-blown cloth are placed according to a preset sequence and subjected to hot rolling reinforcement, and the medical non-woven material is obtained; and the medical non-woven material is cut by a cutter and then rolled into a coiled material. The material has the advantages of no bag breakage and high bacteria resistance.