710results about "Biochemical fibre treatment" patented technology

A material for producing macromolecule air fibers, a preparation method, and an application thereof are provided. The material for producing macromolecule air fiber is prepared by preparation of doped antibacterial TiO2 / ZnO / ZrO2 ceramic powder, deposition of magnetic iron oxide, surface modification with tannic acid, addition of water-soluble chitosan solution, immersion in a spined TPEE air fiber membrane, uniform addition of Genipin solution, heating and reacting, membrane removal, washing, and drying. The TPEE air fiber membrane produced by the present disclosure has good mechanical properties, and modified ceramic powder is uniformly dispersed in the TPEE air fiber membrane, which plays a good role in antibacterial, environmental protection, immune regulation, magnetic therapy, far-infrared heating and other effects, rendering the material for producing macromolecule air fibers have better comprehensive performance and a good mattress support material with broad application prospects.

The invention discloses a multi-stage flow guide double-sided anisotropic sanitary surface layer spunlace material and a preparation method thereof, and relates to the technical field of textile manufacturing. The preparation method of the sanitary surface layer spunlace material comprises the following steps: opening, carding and cross lapping a fiber raw material to obtain a front surface fiber web and a back surface fiber web, overlapping the front surface fiber web and the back surface fiber web in a manner that the front surface is on the upper side and the back surface is on the lower side, performing spunlace reinforcement, finishing after reinforcement, and finally drying and winding to obtain the sanitary surface layer spunlace material. Wherein the front fiber net is made of all-cotton fibers, and the gram weight is 30-50 g / m < 2 >; the reverse side fiber net is made of mixed fibers, and the gram weight is 40-60 g / m < 2 >; the reverse fiber net is obtained by mixing modified regenerated cellulose fibers, polyurethane fibers and bamboo pulp fibers according to the mass ratio of (10-30): (5-10): 100.

The invention relates to the technical field of biomass fibers, in particular to a modified biomass fiber for a resin anticorrosive coating as well as a preparation method and application of the modified biomass fiber, and the modified biomass fiber is a biomass fiber with a rare earth complex anchored on the surface; the rare earth complex is formed by combining rare earth metal ions serving as central ions with organic ligands through coordinate bonds; rare earth ions and organic ligands are grafted to the surfaces of the pretreated biomass fibers through chemical reaction, so that the binding capacity of the biomass fibers in resin can be improved, and the biomass fibers are endowed with fluorescence characteristics; and moreover, the biomass fibers subjected to fluorescence modification are doped into the resin coating, so that the integrity of the coating can be self-detected under ultraviolet light, and the effect of monitoring the resin coating in real time can be achieved.

The invention relates to the field of polyester fibers, and discloses a composite enhanced polyester fiber for bags and suitcases and a preparation method thereof.The composite enhanced polyester fiber is prepared from polyethylene glycol terephthalate slices, polyethylene glycol, tris (2, 4-di-tert-butylbenzene) phosphite, tetra [beta-(3, 4-ditert-butylbenzene)] tetrakis [beta]-(2, 4-ditert-butylbenzene)] tetrakis [beta-(3, 4-ditert The composite material is prepared from 1, 3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, modified nano-zinc oxide, tetrabutyl titanate, a chitosan aqueous solution and acetic acid. The modified nano zinc oxide is prepared from gamma-aminopropyltriethoxysilane, an ethanol water solution, acetic acid and nano zinc oxide. The composite enhanced polyester fiber disclosed by the invention has relatively good antibacterial property, hygroscopicity and mechanical property.

The invention relates to a preparation method and application of a long-acting antibacterial hydrophobic fabric, and belongs to the technical field of functional fabric materials. Aiming at the problems of antibacterial agent loss, hydrophobic function decline and antibacterial and hydrophobic synergism failure after repeated washing of the fabric, the method comprises the following steps: pre-treating the fabric to remove impurities, and constructing a functional layer step by step: immersing polyester or cotton fabric into a 2-8wt% chitosan quaternary ammonium salt aqueous solution, and carrying out vacuum pressurization impregnation at 75-85 DEG C to form an antibacterial layer; mixing octadecyl trichlorosilane with deionized water to prepare a pre-hydrolyzed emulsion, diluting the pre-hydrolyzed emulsion, and spraying the diluted pre-hydrolyzed emulsion on the surface of the fabric in a graded gradient manner to construct a hydrophobic layer; and finally, curing at 60-80 DEG C to form a coating layer. The fabric prepared by the method has lasting antibacterial property, super-hydrophobicity and blood adhesion resistance, can be used for medical protective articles such as operating gowns and medical bed sheets needing high-frequency cleaning, and can effectively prevent cross infection.

The invention discloses a wear-resistant and high-temperature-resistant polyester fiber and a preparation method thereof, belongs to the technical field of polyester processing, and aims to solve the technical problem that wear resistance and high-temperature resistance of polyester fibers in the prior art need to be further improved. Carrying out melt extrusion and spinning to obtain a polyester fiber precursor; the preparation method comprises the following steps: modifying an epoxy group on a carboxylated carbon nanotube through a free radical polymerization reaction to obtain a modified filler, carrying out melt spinning on the modified filler, an auxiliary additive and modified PET to obtain a polyester fiber precursor, preparing a modified antibacterial agent through a coprecipitation method, further preparing an antibacterial solution, and carrying out melt spinning on the antibacterial solution to obtain the antibacterial polyester fiber. The polyester fiber precursor is soaked in the antibacterial liquid to obtain the polyester fiber, so that the wear resistance and the high temperature resistance of the polyester fiber are improved, and the antibacterial performance of the polyester fiber is also improved.

The invention provides a silica hydrogel, a method for removing the same, and a silica hydrogel film. A silica-based composite material modified by an alkyl amine group NH2L and an organic alkyl group R is prepared by adopting a reversed-phase microemulsion method, and a silica colloid material highly modified by an organic group is obtained by controlling the molar weight of alkyl amine silane and alkyl silane and controlling no use and no contact of any alcohol solvent in the whole preparation process. Adding acetone for demulsification, centrifugally collecting, washing solids, drying to obtain a solid silicon dioxide colloid material, and dissolving the solid silicon dioxide colloid material in deionized water to obtain the silicon dioxide hydrogel. The silica hydrogel has solubility in an alcohol solvent and can be removed by the alcohol solvent. The silicon dioxide hydrogel can be combined on the surface of a membrane material to obtain a silicon dioxide hydrogel membrane.

The invention belongs to the technical field of textile materials, and discloses an easy-to-dye composite polyester fiber and a preparation method thereof. The preparation method comprises the following steps: by taking polyethylene glycol terephthalate as a core layer and low-melting-point polyester as a skin layer, carrying out melt spinning to prepare skin-core composite fibers; after heating and melting a skin layer, bombarding by using a titanium dioxide nano particle flow to obtain roughened fibers; after plasma treatment, dipping with an activating solution of triethylamine and 4-methylbenzenesulfonyl chloride to obtain activated fibers; carrying out ultrasonic reaction on the activated fiber and a modifier under the catalysis of tetrabutyl titanate, and washing and drying to obtain the easy-to-dye composite polyester fiber. The prepared composite polyester fiber not only has the advantage of being easy to dye, but also has excellent antibacterial performance and flame retardant performance, and the quality of the composite polyester fiber is effectively guaranteed.

The application discloses a preparation method of active chitosan quaternary ammonium salt modified cellulose fabric based on a dispersion system, and belongs to the field of textile chemistry. The effective grafting of chitosan quaternary ammonium salt and nitrogen-containing heterocyclic monomers is realized by using a dispersion system, the active sites on the chitosan quaternary ammonium salt are increased, the covalent grafting effect of the active chitosan quaternary ammonium salt and the cellulose fabric is improved, the cellulose fabric is endowed with durable antibacterial function, the dyeing performance of the cellulose fabric in natural dyes and active dyes is improved, and when the cellulose fabric prepared by the method is dyed by using active dyes, the amount of neutral salt can be reduced.

The application discloses a medical natural antibacterial and antiviral mildew-proof wet non-woven fabric and a preparation method and application thereof, and belongs to the technical field of medical polymer materials and textiles. The non-woven fabric is prepared from the following raw materials: polyethylene terephthalate long fibers, polyethylene terephthalate short fibers, vinylon fibers and natural antibacterial and antiviral ultraviolet slow-release glue solution. The non-woven fabric is endowed with natural and non-toxic antibacterial and antiviral effects by using the extract of Chinese herbal medicine effective components. Meanwhile, the mechanical properties and the antibacterial and antiviral capacity of the non-woven fabric can be effectively improved by adding nano materials with far infrared function after surface modification to prepare high-efficiency natural antibacterial and antiviral ultraviolet slow-release microcapsule glue solution. The method improves the added value and application field of the wet non-woven fabric and is convenient for large-scale processing and production. The prepared wet non-woven fabric has excellent performance indexes, good air permeability and an antibacterial and antiviral efficiency of 99.99%.

The invention discloses a degradable antibacterial fiber and a preparation method thereof, and belongs to the field of environment-friendly materials. The invention aims to solve the problems that the antibacterial long-term effect and the degradability are unbalanced, and the toxicity of an antibacterial agent conflicts with the biocompatibility. The fiber is composed of bacteriophage antibacterial peptide, polyhydroxyalkanoate, sodium hypochlorite and the like, the antibacterial peptide is derived from a bacteriophage phi 87S / 06 genome, and a mineralizing solution is prepared according to a ratio of CaCl2 to Na2HPO4 to sodium alginate of 3: 2: 2. The preparation method comprises the following steps: constructing double-plasmid engineering bacteria through gene editing to realize synergistic expression of the antibacterial peptide and PHBV, performing fermentation separation to obtain a copolymer, and performing ionic liquid dissolution, boric acid crosslinking, electrostatic spinning and mineralized coating treatment. After the product is washed for five times, the antibacterial rate is greater than 99%, the weight loss rate in 90 days is 82%, the tensile strength is 18MPa, the elongation at break is 25%, the balance of antibacterial long-term effect, degradability and mechanical property is realized, and the antibacterial material is suitable for the fields of medical dressings and the like.

The invention relates to the technical field of high-performance acrylic fibers, and discloses an anti-wrinkle and anti-pilling homewear fabric and a preparation method thereof. The preparation method of the anti-wrinkle and anti-pilling homewear fabric comprises the following steps: preparing lignin micro-nanospheres, and modifying the lignin micro-nanospheres to obtain surface modified lignin micro-nanospheres; after the surface-modified lignin micro-nanospheres are modified by a modifier, nano-silver is deposited on the surfaces of the surface-modified lignin micro-nanospheres to obtain antibacterial modified lignin micro-nanospheres; loading the antibacterial modified lignin micro-nanospheres on the surface modified acrylic fibers to obtain loaded modified acrylic fibers; blending and knitting the loaded modified acrylic fibers and cotton fibers to obtain base cloth; and padding and baking the base cloth in the polyurethane anti-wrinkle and anti-pilling finishing liquid to obtain the anti-wrinkle and anti-pilling homewear fabric. The anti-wrinkle and anti-pilling homewear fabric has the advantages of being skin-friendly, warm-keeping, moisture-absorbing, breathable, anti-pilling, anti-wrinkle, washable and durable in antibiosis.

The invention relates to the technical field of spunlace non-woven materials, and particularly discloses a medical high-performance polylactic acid spunlace composite non-woven material and a preparation method thereof.The preparation method comprises the steps that firstly, polylactic acid fibers and crude natural cellulose fibers are modified, and a compatilizer PLGA-PEG-MDI segmented copolymer is prepared; the preparation process of the spunlace composite non-woven material comprises the steps that viscose is subjected to plasma activation, a compatilizer is sprayed to be loosened and mixed with modified polylactic acid fibers, cross lapping is carried out, polylactic acid added with the compatilizer is melt-blown to the surface of the lapping, and the spunlace composite non-woven material is obtained. And finally, paving the modified crude natural cellulose on the surface of the melt-blown layer to form the spunlace composite non-woven material with good antibacterial property, one-way wet permeability and degradability.

The present invention relates to the field of fabric technology, and discloses an antibacterial and deodorizing nylon fabric and a preparation method thereof. The preparation method of the antibacterial and deodorizing nylon fabric comprises the following steps: reacting mercaptoethylamine with eugenol to obtain an intermediate product; modifying nano-titanium dioxide with a silane coupling agent KH560 and the intermediate product in sequence, and then mixing with nylon 56, ethylene-methyl acrylate-glycidyl methacrylate terpolymer, and polyhexamethylene guanidine; co-extruding, pelletizing, and melt spinning to obtain modified bio-based nylon 56 filaments; soaking the modified bio-based nylon 56 filaments in a polyacrylic acid / water solution and weaving them into bio-based nylon 56 fabric; and treating the bio-based nylon 56 fabric with an antibacterial and deodorizing finishing solution to obtain the antibacterial and deodorizing nylon fabric. The antibacterial and deodorizing nylon fabric of the present invention has excellent antibacterial and deodorizing properties and washability.

The application relates to a modified polylactic acid oligomer and a preparation method and application thereof. The modified polylactic acid oligomer has the structure shown in the following formula (I). The modified polylactic acid oligomer obtained by copolymerization of 5-hydroxy-2-hexenoic acid and lactic acid has more excellent and stable and persistent antibacterial activity, the antibacterial efficiency is greatly improved, the sterilization rate is improved, and the sterilization time is shortened; when the modified polylactic acid oligomer is applied to various antibacterial coatings and textile finishing, the surface no longer has a wet sticky feeling, the commercialization and wide application of the material are more beneficial, and the modified polylactic acid oligomer has higher affinity to a target substrate, so that the persistence, stability and washability of a surface coating can be improved.

The invention discloses a modified silicon nitride non-woven fabric and a preparation method and application thereof, and belongs to the technical field of silicon nitride non-woven fabrics. The invention provides a silicon nitride non-woven fabric. The silicon nitride non-woven fabric comprises a non-woven fabric base material and chitosan quaternary ammonium salt-alpha-phase silicon nitride composite particles loaded on the surface of the non-woven fabric base material, the chitosan quaternary ammonium salt-alpha-phase silicon nitride composite particles are formed by combining chitosan quaternary ammonium salt and hydroxylated alpha-phase silicon nitride through hydrogen bonds and coordinate bonds. According to the silicon nitride non-woven fabric, the antiviral inactivation efficiency can be greatly improved, and thorough inactivation of viruses is achieved; the dispersity of alpha-phase silicon nitride particles is obviously improved, and the air permeability of the non-woven fabric is guaranteed; the adhesive force of the particles and a base material is enhanced, and long-acting and stable antiviral performance is The virus contact time is prolonged, and the physical puncture effect is enhanced; the material has excellent biocompatibility, adapts to medical scenes, can be safely applied to medical protection products, such as medical masks and protective garments, which are in direct contact with a human body, and has both safety and practicability.

The invention belongs to the technical field of natural textile material modification, and particularly relates to a preparation method of bio-enzyme synergistic microorganism modified high-toughness mudar floss, which comprises the following steps: taking mudar floss as a raw material matrix, specifically providing clean mudar floss, and performing opening and activating treatment; performing solid-state fermentation treatment on the mudar floss by using brown rot fungi, specifically, inoculating activated brown rot fungi into the mudar floss for solid-state fermentation, and selectively degrading non-lignin impurities such as hemicellulose and the like; according to the preparation method of the high-toughness calotropis gigantea fiber modified by the bio-enzyme and the microorganisms, a biological method is adopted in the whole process, environmental pollution and fiber damage caused by traditional chemical modification are avoided, the process is mild and clean, a three-step synergistic strategy of brown rot fungus pretreatment, compound enzyme fine trimming and tannic acid toughening is innovatively adopted, and the method is suitable for industrial production. The brown rot fungi create a channel for subsequent enzyme reaction, enzyme treatment exposes active sites for tannic acid cross-linking, progressive layer by layer, high efficiency and remarkable effect are achieved.

The invention provides a long-acting antibacterial chinlon composite fiber and a preparation process thereof, and belongs to the technical field of composite fibers. The preparation process comprises the following steps: preparing the modifier; preparing modified graphite; preparing the antistatic modified polyamide fiber; preparing an antibacterial treatment solution; and preparing the chinlon composite fiber. Cyanuric chloride and N, N-dimethyl propane diamine react to generate an intermediate, then the intermediate and 1, 3-propane sultone react to generate an antibacterial agent, the antibacterial agent is prepared into an antibacterial treatment solution, and after the antibacterial treatment solution is added into the pretreated antistatic modified polyamide fibers, the antibacterial agent can be connected to the surfaces of the fibers, so that the antistatic property of the fibers is improved. The anti-static modified polyamide fiber has better washing-resistant and antibacterial properties by adding the antibacterial agent into the polyamide fiber, and then the washing-resistant and antibacterial properties of the antibacterial agent can be further improved after bond energy is enhanced through heat treatment, so that the prepared polyamide composite fiber has a long-acting antibacterial effect.

The invention relates to the field of chamois leather fabrics, in particular to a temperature self-adaptive adjustment type chamois leather fabric and a preparation method thereof. The temperature self-adaptive adjusting type chamois leather fabric comprises a surface layer and a temperature adjusting layer, the temperature adjusting layer is prepared from a temperature self-adaptive microgel coated and modified fiber base material, and the temperature self-adaptive microgel is poly (N-isopropylacrylamide) microgel. According to the invention, by constructing the double-layer composite structure of the epidermal layer and the temperature adjusting layer, the cooperation of bionic texture and intelligent temperature control is realized. The skin layer has the functions of touch simulation and basic protection, the temperature adjusting layer takes a poly N-isopropylacrylamide microgel coated and modified fiber base material as a core, and fiber gaps are dynamically adjusted by utilizing the temperature-sensitive characteristic of microgel, so that the self-adaptive change of air permeability is realized. The design breaks through the limitation that a traditional chamois leather fabric is single in function, and the fabric is endowed with the dynamic comfort performance of low-temperature warm keeping and high-temperature ventilation while the fine and smooth touch feeling is reserved.

The application relates to the technical field of fabrics, and discloses an anti-wrinkle comfortable composite fabric containing superfine denier polyester fibers and a preparation method thereof. Cotton fibers treated with alkali are immersed into modified slurry containing quaternary ammonium salt modified graphene to obtain modified cotton fibers, silk fibers and protein fibers are respectively spun into yarns, and inner-layer fabric is woven, superfine denier polyester fibers and modified cotton fibers are respectively spun into yarns, outer-layer fabric is woven, and then the inner-layer fabric and the outer-layer fabric are fixed by sewing with polylactic acid fiber filaments to obtain the anti-wrinkle comfortable composite fabric containing superfine denier polyester fibers. The composite fabric has excellent wear resistance, mechanical properties and antibacterial properties, and has the characteristics of high elasticity, has good anti-wrinkle ability, and is not prone to deformation. The woven inner-layer fabric is soft and comfortable, and can meet various demands of people for garment fabrics.

According to the preparation method of the nano microcapsule with the mildew-proof function, provided by the invention, the embedding rate, the drug loading rate and the yield of the microcapsule are effectively improved by adjusting the concentration of a water phase of chitosan, the concentration of a PCL polymer and the ratio of the mildew-proof agent to the PCL; the microcapsule disclosed by the invention has excellent mildew-proof performance, and can be used as a functional additive to be added into an industrial coating, so that a coating is endowed with long-acting mildew-proof capability; the anti-mildew agent can also be widely applied to anti-mildew protection in the fields of wood, leather and textile fabrics, and has huge application potential.

The invention discloses a preparation method of a composite phase change material, a thermal-insulation and antibacterial fabric and a preparation method thereof, and belongs to the field of functional textile fabrics and preparation thereof. The composite phase change material provided by the invention can be applied as a coating finishing component, and the preparation method comprises the following steps: taking polystyrene microspheres as a core, and forming a composite precursor through dopamine self-polymerization coating; and compounding the composite precursor with a layered double-metal hydroxide, and calcining to obtain the carbon microsphere supported layered double-metal oxide material with a hollow structure, and mixing the carbon microsphere supported layered bimetal oxide material with paraffin, and loading to obtain the carbon microsphere supported layered bimetal oxide material. The textile fiber fabric provided by the invention has excellent thermal insulation and antibacterial characteristics, is good in comfort, and has wide application prospects in industrial production and clothing application.

The invention provides an antibacterial finishing agent and a preparation method and application thereof, and belongs to the technical field of textile assistants, the antibacterial finishing agent comprises the following raw materials: a chitosan-phytic acid-gallic acid graft copolymer, a citric acid-chitosan oligosaccharide cross-linking agent, sodium polyglutamate, a natural surfactant and water. During application, a padding-baking process is adopted, the finishing agent is diluted into 5-20 g / L working solution, the pH is 6-6.5, two times of padding and two times of rolling are performed, pre-drying is performed for 2-3 min at the temperature of 90-100 DEG C, baking is performed for 2-3 min at the temperature of 150-160 DEG C, an antibacterial layer which is resistant to washing more than or equal to 50 times and has the antibacterial rate more than or equal to 90% can be formed on pure cotton, pure hemp, pure silk and blended fabric thereof, and the finished fabric is soft in hand feeling, free of metal residues and biodegradable.

The application provides a moisture-absorbing and heat-generating wool blended knitting yarn and a preparation method thereof, and belongs to the field of textile technology. Bamboo pulp fibers, modified polypropylene fibers, cotton fibers and modified wool fibers are sequentially subjected to the processes of grabbing, mixing, opening, feeding, rolling, carding, drawing and roving in a mass ratio of 20 / 30 / 20 / 20 to obtain the moisture-absorbing and heat-generating wool blended knitting yarn. The moisture-absorbing and heat-generating wool blended knitting yarn prepared by the application has the advantages of low cost, simple preparation method, good durability, anti-static performance, moisture absorption, sweat discharge, quick drying, antibacterial property, heat generation, warmth retention, aging resistance and the like, and has a wide application prospect.

The invention discloses a production process of zero-carbon blended yarn and fabric, and belongs to the technical field of zero-carbon fabric production, the zero-carbon blended yarn comprises the following raw materials by weight: 60% of regenerated polyester fiber; 40% of organic cotton fiber; the regenerated polyester fibers and the organic cotton fibers are mixed according to the proportion of 60: 40, biological enzyme degreasing treatment is adopted, and water consumption is reduced by 50%; s2, low-carbon spinning; s3, carbon footprint tracking; s4, no dyeing and finishing process; s5, closed-loop water treatment. According to the production technology of the zero-carbon blended yarn and the fabric, the zero-carbon blended yarn fabric produced through the production technology can be widely applied to the high-end fields of sportswear, outdoor equipment and the like, large-scale production of the zero-carbon blended yarn fabric is achieved through combination of raw material innovation, technology optimization and carbon management, environmental benefits are remarkably improved, and the production technology is suitable for popularization and application. The production process is energy-saving and consumption-reducing, and full-life-cycle carbon management is realized.

The invention relates to the technical field of textiles, and provides an antibacterial yarn and a preparation process thereof. The antibacterial yarn comprises cotton fibers and Juncao fibers, the cotton fibers are treated through an antibacterial finishing agent, and the antibacterial finishing agent is prepared from, by mass, 1-8 parts of a compound modified antibacterial agent containing piperazinyl and phenolic hydroxyl, 0.5-1.5 parts of an antistatic agent, 1-5 parts of a thickening agent and 100 parts of water. An antibacterial agent in the compound modified antibacterial agent containing piperazinyl and phenolic hydroxyl is nanoscale tourmaline coated micron-sized tetrapod-like zinc oxide. By means of the technical scheme, the problem that in the prior art, tetrapod-like zinc oxide is adopted as an antibacterial agent to conduct antibacterial after-treatment on fabric, and the prepared antibacterial yarn is poor in durability is solved.

The invention relates to the related technical field of costume fabrics, in particular to a high-antibacterial anti-sunshine costume fabric not prone to fading and a preparation technology, the high-antibacterial anti-sunshine costume fabric comprises a base fiber layer, and an antibacterial finishing layer, an anti-ultraviolet layer and a color fastness enhancing layer are arranged on the base fiber layer. According to the high-antibacterial anti-sunshine clothing fabric not prone to fading and the preparation process, a nano-silver and chitosan composite system is adopted, nano-silver releases silver ions to destroy the physiological structure of bacteria, chitosan inhibits the activity of the bacteria through the amino effect, the nano-silver and the chitosan cooperate with each other, the antibacterial effect of clothing is improved, nano-zinc oxide and titanium dioxide composite sol improve the antibacterial effect of the clothing, and the antibacterial effect of the clothing is improved. Through multiple mechanisms of reflecting, scattering and absorbing ultraviolet rays, broadband protection is formed, the ultraviolet rays can be effectively blocked, the high-grade sunscreen requirement is met, the skin is protected from being damaged by the ultraviolet rays, the sulfonic-group-containing organic dye fixing agent, dye molecules and fibers form chemical bond combination, a stable color fixing network is constructed, and the appearance color and luster are kept lasting.

The invention provides antibacterial cloth and a preparation method thereof. The preparation method comprises the following steps: treating the cloth with acid; and then treating with a plant extracting solution. The invention also provides an antibacterial fabric. The antibacterial fabric comprises the antibacterial cloth provided by any one of the invention. The antibacterial fabric is selected from any one of sports underwear, yoga pants, riding clothes, outdoor climbing clothes, diving suit, antibacterial socks, a field tent, a sleeping bag lining, a helmet buffer liner, a battle boot lining, a backpack braid, a waistband, medical protective clothing, a mask, a medical hood, a medical goggle bandage, a bedspread, back cushion cloth, an automobile seat cover, a subway seat cover and a high-speed rail seat cover; the invention relates to an aircraft seat cover, a household sofa cloth cover, a food processing protective garment and a cold-chain logistics protective garment.

The invention provides antibacterial and antifogging glasses wiping cloth and a preparation method thereof, and relates to the technical field of glasses cleaning. Comprising a base material layer, the base material layer is a fiber fabric internally provided with a micropore structure, the fiber fabric is formed by blending sea-island fibers and bamboo charcoal fibers, an antibacterial layer is arranged on the surface of the base material layer, an anti-fog layer is sprayed on the surface of the base material layer, and the antibacterial layer is formed after the base material layer is soaked in composite antibacterial liquid and cured. The composite antibacterial liquid comprises quaternary ammonium salt modified chitosan and polyhexamethylene biguanide, the quaternary ammonium salt modified chitosan is covalently bonded with the fiber surface through an epoxy group cross-linking agent, the polyhexamethylene biguanide is dispersed in the microporous structure, and the anti-fog layer is formed by a sulfobetaine methacrylate polymer grafted on the surface of the base material layer. And a modified nano TiO2-SiO2 core-shell structure is embedded in the zwitterionic polymer. The 24-hour antibacterial rate of the glasses wiping cloth is greater than 99%; after 50 times of standard washing, the antibacterial rate is still greater than or equal to 95%; the antifogging duration is longer than or equal to 33 days and far exceeds that of a temporary coating.

The invention relates to the technical field of polyester yarns, in particular to a high-strength polyester yarn and a preparation method thereof.The method comprises the steps that PET slices with the intrinsic viscosity of 0.85-1.00 dL / g are subjected to melt spinning and cooled through circular blowing to obtain nascent fibers, the nascent fibers are subjected to surface activating treatment through low-temperature plasma or esterase bio-enzyme, and the high-strength polyester yarn is obtained; the preparation method comprises the following steps: firstly, activating fibers, then carrying out graft copolymerization reaction on the activated fibers and graft monomer solutions such as fluorinated acrylate and acrylic acid, and finally, cleaning, drying, carrying out thermal network and winding on the composite fibers, so that the prepared polyester yarn has the breaking strength of more than or equal to 7.7 g / D, the dry heat shrinkage rate of less than or equal to 3.5% and the shrinkage tension of less than or equal to 0.03 g / D, has the high functional characteristics of lasting super-hydrophobicity, antibacterial property and the like, is excellent in washing resistance, and is suitable for industrial production. The problem that functionalization is difficult due to surface inertia of the polyester fiber is solved, and the mechanical property and the surface characteristic of the polyester fiber are comprehensively improved.