355 results about "Viscose fiber" patented technology

The invention discloses environment-friendly high-barrier packaging paper and a preparation method thereof, and belongs to the technical field of paper product manufacturing. The method comprises the following steps: dispersing bleached sulfate softwood pulp in an aqueous solution of TEMPO and NaBr, adding a NaClO solution, adjusting the pH value, carrying out a reaction, washing the product obtained by the reaction, and carrying out high-pressure homogenization to obtain TEMPO oxidized nanocellulose (TOCNF); mixing the bleached sulfate softwood chemical pulp, hardwood pulp and viscose fibers, pulping, papermaking and the like to obtain original paper; then, TOCNF and waterborne epoxy modified acrylic emulsion are mixed, and a mixed coating is prepared; and finally, coating the surface of original paper with the coating according to a certain mass ratio, and carrying out hot-pressing curing to obtain the environment-friendly high-barrier packaging paper. The packaging paper is excellent in mechanical property, high in barrier property, good in surface uniformity and printing property, environment-friendly and degradable in raw materials, simple to prepare and low in cost.

The invention discloses a method for preparing viscose fiber from alkali-soaked hemicellulose, and relates to the technical field of viscose fiber production and preparation, and the method comprises the following steps: sequentially carrying out multi-stage filtration and twice nanofiltration membrane filtration on alkali liquor squeezed from slurry porridge, and separating out high-concentration hemicellulose alkali liquor; after cellulose xanthate is generated through a xanthating machine reaction, high-concentration hemicellulose alkali liquor is added into the xanthating machine to be subjected to a xanthating reaction, and hemicellulose xanthate is generated; and adding dilute alkali liquor into the xanthating machine for dissolving, and sequentially filtering, defoaming and spinning to prepare the viscose fiber. After alkali cellulose and carbon disulfide are subjected to a yellowing reaction, high-concentration hemicellulose alkali liquor is added into a yellowing machine for secondary yellowing, then two xanthate esters are dissolved with dilute alkali liquor, and subsequent filtering, defoaming and spinning procedures are performed, so that full utilization of hemicellulose is realized, and the quality and spinnability of viscose fibers are guaranteed; meanwhile, pulp unit consumption and new alkali consumption are reduced, and the production cost is saved.

The invention relates to the technical field of medical materials, and discloses a chitosan spunlace degradable medical dressing base material and a preparation method thereof. Comprising the following operation steps that chitosan fibers, modified cellulose and viscose fibers are subjected to opening treatment and then mixed to be uniform, carding is conducted through a carding machine to form a net, cross laying is conducted, and a fiber net is obtained; performing spunlace reinforcement on the fiber net by adopting a flat net spunlace machine to obtain the chitosan spunlace non-woven fabric; carrying out vacuum defoaming on the spinning solution and then putting the spinning solution into a propulsion pump; the chitosan spunlace non-woven fabric is fixed to a collector for electrostatic spinning and drying, then the chitosan spunlace non-woven fabric is soaked in a zinc acetate ethanol solution for ultrasonic treatment for 5-10 min, ethanol cleaning, drying, cutting and packaging are conducted, and the chitosan spunlace degradable medical dressing base material is obtained.

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 invention belongs to the technical field of functional textile materials, and discloses a modified spandex-based high-elastic antibacterial knitted fabric and a preparation method thereof.The fabric is of a double-layer composite knitted structure and comprises an inner high-elastic breathable layer and an outer antibacterial compact layer; the inner layer is formed by blending modified spandex yarns and modified viscose fibers, and the outer layer is formed by blending modified spandex yarns and superfine polyester fibers. The modified spandex yarn is prepared by introducing a hydrophilic antibacterial monomer compound into a spandex base material and matching with a cross-linking agent for graft modification, the hydrophilic antibacterial monomer compound is formed by compounding guanidyl acrylate and acryloyloxy eugenol, and stable fixation of antibacterial groups is achieved from the molecular level. Meanwhile, the molecular chain structure is regulated and controlled to keep high elasticity. The elongation at break of the fabric is greater than or equal to 300%, the elastic recovery rate is greater than or equal to 95%, and the antibacterial rate on escherichia coli and staphylococcus aureus is greater than or equal to 99%.

The invention provides viscose large biological fibers containing olive active ingredients and a preparation method of the viscose large biological fibers. The fibers comprise viscose fiber matrixes and composite microcapsules dispersed in the viscose fiber matrixes. The composite microcapsule comprises a core load unit and an alkali-resistant encapsulation layer, the core loading unit is a metal organic framework crystal coated with a porous silicon dioxide shell layer on the surface, the metal organic framework crystal is formed by coordination of an organic ligand and zinc ions, and the olive extract is loaded in a pore channel of the core loading unit; the alkali-resistant packaging layer coats the outer surface of the core load unit and is a polyelectrolyte multilayer film formed by alternately depositing chitosan quaternary ammonium salt and sodium polystyrenesulfonate. The preparation method comprises the following steps: preparing the composite microcapsule, mixing the composite microcapsule with a viscose spinning solution and a hydroxyethyl cellulose compatilizer, and spinning to obtain the fiber. Through the design of the core load unit and the alkali-resistant encapsulation layer, the technical problem that the olive extract is easy to inactivate and difficult to slowly release for a long time in a strongly alkaline spinning environment is solved.

The invention discloses a viscose-based light heat insulation felt and a preparation method thereof, and relates to the technical field of heat insulation felts.In order to improve the strength and the use performance of a viscose-based carbon fiber heat insulation felt, the technology is improved in the preparation process, firstly, viscose fibers are subjected to dipping treatment through a catalyst, and then the viscose fibers are subjected to heat insulation treatment; therefore, elements such as hydrogen and oxygen in the viscose fibers are removed as much as possible in the pre-oxidation stage, ash impurities after carbon fiber forming are reduced, then on the basis, modified phenolic resin is further prepared, boron is introduced into the modified phenolic resin, and in the subsequent dipping treatment process, the content of carbon fibers in the modified phenolic resin is reduced. The phenolic resin containing the boron element can be attached to the fiber felt subjected to pre-oxidation treatment, in the high-temperature graphitization process, the boron element can further catalyze the graphitization degree of carbides, and collapse of the carbon material at the high temperature is avoided, so that the strength of the heat insulation felt is improved, and the defects of slag falling and ash falling are reduced.

The utility model discloses a moisture absorption and sweat releasing chemical fiber fabric, and relates to the technical field of fabrics. According to the technical scheme, the breathable fabric is characterized in that the breathable fabric comprises an inner layer and an outer layer which are fixedly connected with each other, a plurality of contact strips with the same length as the outer layer are fixedly connected to the side, close to the inner layer, of the outer layer, each contact strip is composed of a plurality of contact velvet, and first breathable sections corresponding to the contact strips are arranged on the inner layer; the side, close to the outer layer, of the inner layer is fixedly connected with a plurality of moisture dissipation blocks, each moisture dissipation block is composed of a plurality of moisture dissipation velvet, the outer layer is provided with second ventilation sections corresponding to the moisture dissipation blocks, and the sectional area of the first ventilation sections and the sectional area of the second ventilation sections are larger than those of the contact strips and the moisture dissipation blocks respectively. The moisture absorption effect is guaranteed through the contact strips and the moisture dissipation blocks, channels for external air to enter the fabric are increased due to the arrangement of the first breathable section and the second breathable section, and the moisture absorption and dissipation performance of the whole fabric is guaranteed through the characteristics of the viscose fibers and the bamboo charcoal fibers.

The invention relates to the technical field of viscose fiber processing, in particular to a viscose fiber oiling device which comprises a fixing frame, an oil collecting tank, an oil nozzle, an oiling roller, a connecting shaft, a clamping mechanism, an adjusting assembly, a driving mechanism, an arc-shaped filter plate, an arc-shaped scraping plate and a connecting frame. The bottom of the fixing frame is connected with the oil collecting tank, the top is sleeved with the oil nozzle, the middle is provided with the oiling roller, and the two ends are connected with the clamping mechanism through connecting shafts. The clamping mechanism is composed of three triangular clamping blocks, an anti-slip strip and an adjusting assembly, the adjusting assembly is used for synchronously adjusting the triangular clamping blocks to rotate, and the driving mechanism drives the oiling roller to rotate through the clamping mechanism. An arc-shaped scraper is in sliding fit with the surface of the arc-shaped filter plate and is driven by a driving component to slide back and forth at the top of the connecting frame to clean the filter plate. According to the device, the oiling roller is quickly disassembled and assembled through the linkage adjusting mechanism without disassembling the bearing seat, so that the maintenance period is shortened; the arc-shaped scraping plate is used for automatically cleaning the filter plate, filter holes are prevented from being blocked, the oil circulation efficiency is improved, and the manual cleaning intensity is reduced.

The application relates to the technical field of fabrics, and discloses a wear-resistant chinlon fabric and a preparation method thereof. The wear-resistant fabric prepared by the application is composed of 25-35% polyester fibers, 15-35% modified chinlon fibers and 35-55% viscose fibers, and has excellent wear resistance, antistatic property and ultraviolet resistance; wherein the modified chinlon fiber is prepared by coating polypyrrole on the surface of chinlon fiber after grafting modification of the chinlon fiber by a reinforcing agent, so that the chinlon fiber is endowed with ultraviolet resistance and antistatic property.

This utility model relates to the technical field of viscose fiber production equipment, specifically a xanthation device for viscose fibers. The xanthation device includes: a storage tank; a stirring shell installed on top of the storage tank; a discharge cylinder installed at the bottom of the stirring shell; a hinged plate installed at the bottom of the stirring shell; a groove formed at the bottom of the hinged plate; a rotating rod penetrating through the groove; the rotating rod penetrating the side wall of the discharge cylinder; a push block fixed to the outer surface of the rotating rod; and a drive motor installed at the outer end of the rotating rod. The advantages are: the xanthation device for viscose fibers proposed in this utility model utilizes the drive motor, rotating rod, push block, and hinged plate in cooperation to allow for rapid and precise adjustment of the lifting and lowering movement of the hinged plate. This facilitates adjusting the lifting distance of the hinged plate to control the flow rate and volume of the viscose fibers, while also preventing the viscose fibers from clogging the discharge port.

An aerosol-generating article (10)(100)(1000) comprises: an aerosol-generating substrate (12)(112)(1004); a downstream element (42)(150)(1008) provided downstream of the aerosol-generating substrate (12)(112)(1004) and in axial alignment with the aerosol-generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibres selected from one or more of viscose fibres, modal fibres, Lyocell fibres and viscose rayon fibres; or a plurality of natural fibres selected from one or more of flax fibres, hemp fibres, jute fibres, kenaf fibres, ramie fibres, abaca fibres, phormium fibres, sisal fibres, coir fibres, cotton fibres, and kapok fibres. The cellulosic fibrous material further comprises an additive coating applied to the plurality of regenerated cellulose or natural fibres, the additive coating comprising at least 5 percent by weight of exogenous lignin on a dry weight basis.

The utility model belongs to the technical field of Juncao underwear, and particularly relates to novel antiviral Juncao underwear which comprises an upper garment, trousers, suit underwear, home furnishing, a bra, underpants and the like, the product is formed by sequentially connecting a fiber interwoven layer, a mercerized cotton layer and an antibacterial lining from outside to inside, two cuffs of the upper garment are each connected with a sleeve binding opening, and the sleeve binding openings are connected with a fiber interwoven layer. The upper end opening of the upper garment is fixedly connected with a sleeve binding opening, the sleeve binding opening is fixedly connected with a wrapping edge, the lower end opening of the upper garment is fixedly connected with a lacing binding edge, the wrapping edge and the lacing binding edge are filled with fungus grass fibers, and two trouser legs of the trousers are connected with trouser leg binding openings. According to the novel antiviral fungus grass underwear, the novel antiviral fungus grass underwear is a suit, namely the novel antiviral fungus grass underwear is divided into the coat and the trousers, the coat and the trousers are both made of the fiber interwoven layer, the mercerized cotton layer and the antibacterial lining, and the fiber interwoven layer is formed by weaving the viscose fiber filaments and the fungus grass fiber filaments, so that the novel antiviral fungus grass underwear has the antibacterial function of a physical method and is comfortable to wear; the problems that the underwear easily damages the skin and easily breeds bacteria are solved.

The application discloses a preparation method of recycled cotton viscose fiber and belongs to the technical field of waste recycling. The preparation method comprises the following processes: obtaining spinning viscose by mixing pulp, impregnating, squeezing, aging, yellowing, dissolving, ripening and defoaming of recycled cotton pulp; and obtaining recycled cotton viscose fiber by spinning, refining and drying of the spinning viscose. The application aims to realize the recycling of recycled cotton pulp formed by discarded cotton clothes or floor cotton of textile mills, to prepare spinning viscose and then prepare cotton viscose fiber, and to obtain pure cotton products with excellent quality, which can be used in the textile industry, so as to realize environmental protection, regeneration and recycling in the textile industry.

The invention discloses a bamboo reed graphene viscose fiber preparation method, a blended yarn and a blended yarn preparation method, and belongs to the technical field of fiber preparation. The preparation method of the bamboo reed graphene viscose fiber comprises the following steps: extracting bamboo reed cellulose from bamboo reed, carrying out ozone and chemical comprehensive treatment on the bamboo reed to obtain the bamboo reed cellulose, and crushing the bamboo reed cellulose to obtain bamboo reed cellulose powder; graphene dispersion liquid is prepared, graphene is subjected to ultrasonic dispersion treatment in a solution containing a surfactant, and the graphene dispersion liquid is obtained; preparing a spinning solution, dissolving the arundo donax cellulose powder in an alkali / urea solvent, then adding the graphene dispersion liquid into the alkali / urea solvent, and uniformly mixing to obtain the spinning solution; and carrying out wet spinning, extruding the spinning solution into a coagulating bath through spinneret orifices, and molding to obtain the viscose fiber. By adopting the bamboo reed graphene viscose fiber preparation method, the blended yarn and the blended yarn preparation method, the problem of poor performance of the bamboo reed graphene viscose fiber can be solved, and the bamboo reed graphene viscose fiber has very good heat retention property.

The invention discloses a high-resistance arc protection garment and a preparation method thereof, and belongs to the technical field of protection garments. The electric arc protection clothing is composed of a surface layer, a heat insulation layer and a comfortable layer, and a phosphorus-containing complexing agent composite system is introduced in the preparation of conductive fibers, so that the complexing stability of copper ions and the carbon forming capacity of the fibers are improved; the surface layer is formed by blending and weaving polyimide fibers, conductive fibers, flame-retardant aramid fibers and flame-retardant viscose fibers, the heat insulation layer is made into a non-woven fabric flocculus felt from the polyimide fibers, the flame-retardant aramid fibers and the flame-retardant viscose fibers, and the comfortable layer is formed by knitting the flame-retardant aramid fibers, the flame-retardant viscose fibers and flame-retardant polyester fibers. Through the collaborative design of the three-layer structure, the conductive stability, the flame-retardant heat-insulating performance and the wearing comfort of the electric arc protection suit are remarkably improved, and the electric arc protection suit has a good application prospect in the high-temperature electric arc protection field in the industries of electric power, metallurgy and the like.

The invention discloses a preparation method of a high-rate hard carbon material, which comprises the following steps: mixing a precursor material with a viscose by-product hemicellulose alkali solution, and carrying out hydrothermal reaction to form a coated and activated precursor material; and carbonizing the coated and activated precursor material to obtain a carbon precursor, and washing, drying and crushing the carbon precursor to obtain the carbon-coated hard carbon material. The invention is used for solving the technical problem of low rate capability at low cost.

The present application relates to a kind of dry method for viscose fiber factory waste gas recovery, including the following sequentially performed steps: (1) waste gas incineration;(2) purification;(3) deacidification mist;(4) drying;(5) sulfur combustion;(6) high temperature furnace gas B is imported into the acid making device to obtain finished product concentrated sulfuric acid.The present application overcomes the shortcomings of existing viscose factory waste gas acid making process equipment, such as easy to be corroded, frequent shutdown, difficult to maintain, low acid production, easy to escape sulfur waste gas, easy to mix furnace gas and external air, low economic benefit, complex process, and many by-products, etc.By adding liquid sulfur mixed combustion, controlling the temperature of each step, setting a booster fan in the front section of the drying tower, a main fan in the rear section, and reasonably arranging the inlet positions of furnace gas and external air, the present application has the advantages of simple process, large-scale acid production, no sulfur waste gas escaping, more environmentally friendly, no mixing of furnace gas and external air, high economic benefit, few by-products, and low maintenance cost.

The present application relates to the technical field of fabric processing, and discloses a preparation method of cellulose fiber silk-like fabric, which comprises the following steps: step one, preparing yarn; step two, winding warp yarn into a weaving shaft by using sectional warping, the warping speed is controlled at 200-300 m / min, and the warping tension is controlled by using a tension piece and a press weight together; step three, in the mode of manual reeding, the yarn on the warp beam is reeded through the stop motion, the heald and the reed one by one, and the reeded yarn is 21400-35000 in number; step four, the reeded warp beam, the stop motion and the heald frame are placed on an air-jet loom to weave, and the width of the woven fabric is 270-280 cm; and step five, dyeing and finishing. The fabric provided by the present application fully retains the excellent properties of lyocell fiber, so that the fabric not only has the smooth hand feeling and luster like silk and the excellent drape like viscose fiber, but also has excellent strength, moisture absorption, air permeability and dimensional stability.

The aerosol generating article (10)(100)(1000) comprises an aerosol generating substrate (12)(112)(1004) and a downstream element (42)(150)(1008) provided downstream of the aerosol generating substrate (12)(112)(1004) and axially aligned with the aerosol generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibers selected from one or more of viscose fibers, modal fibers, lyocell fibers, and viscose rayon fibers, or a plurality of natural fibers selected from one or more of flax fibers, hemp fibers, jute fibers, kenaf fibers, ramie fibers, abaca fibers, phormium fibers, sisal fibers, coir fibers, cotton fibers, and kapok fibers. The cellulosic fibrous material further comprises an additive coating applied to multiple regenerated cellulose or natural fibers, the additive coating containing at least 5% by weight of exogenous lignin on a dry weight basis.

The invention relates to the technical field of polyester fabrics, in particular to a polyester fiber blended shirt fabric and a preparation method thereof.The polyester fiber blended shirt fabric is formed by weaving polyester composite yarn serving as warp and weft through a machine, and the polyester composite yarn is formed by blending first yarn and second yarn according to the mass ratio of (2: 1)-(3: 1); the first yarn is prepared from modified polyester and spandex in a mass ratio of (4: 1)-(7: 1) through a coating spinning process, and the second yarn is prepared from viscose and combed cotton slivers in a mass ratio of (2: 3)-(3: 2) through blending. The polyester resin is modified through the epoxy quaternary ammonium salt antibacterial agent, covalent anchoring-flexible cross-linking modification is achieved, the average antibacterial rate of the fabric is high, the antibacterial fluctuation range is small, the fabric has excellent antibacterial uniformity and stability, meanwhile, the fabric has the soft feeling and the draping feeling, the comprehensive texture requirements of stiff, vertical, elastic and cool feeling needed by high-end shirts are met, and the fabric is worthy of popularization and application. The fabric can be directly used for business shirts, high-end uniform and other scenes.

This invention provides a natural recycled composite functional fabric, characterized in that: the composite functional fabric is composed of viscose fiber, hemp fiber, and bamboo fiber, woven using a double-weft structure, wherein the warp yarns are a blend of viscose / hemp fiber / bamboo fiber, and both the outer and inner wefts are viscose fiber; the composite functional fabric is modified by lignin / keratin composite. This natural recycled composite functional fabric, composed of viscose fiber, hemp fiber, and bamboo fiber, and woven using a double-weft structure, wherein the warp yarns are a blend of viscose / hemp fiber / bamboo fiber, and both the outer and inner wefts are viscose fiber, can be used as an anti-UV curtain fabric after finishing.

The utility model relates to a viscose fiber oil agent production device which comprises a supporting frame, materials for producing viscose fiber oil agents are poured into a mixing barrel, two air cylinders are started, the two air cylinders are synchronous air cylinders, a floating plate is moved downwards, a conveying pipe is driven to move into the mixing barrel, a first motor is started to drive a driving rod to rotate, and the driving rod is driven to rotate. A driving rod drives a spiral conveying paddle to rotate, materials at the bottom in the mixing barrel are sucked into a conveying pipe and discharged from the top of the conveying pipe, the process that the materials at the bottom of the mixing barrel move upwards is achieved, a second motor is started to drive a disc body to rotate, three stirring blades at the top of the disc body conduct auxiliary stirring on the interior of the mixing barrel, and a third motor is started to drive a short rod to rotate; the stirring device is used for achieving swinging of the mixing barrel and can stir materials in the mixing barrel from three different directions, so that the mixing effect is improved, swinging and floating of the mixing barrel are not too large, a floating plate is not touched by mistake, two air cylinders drive the floating plate to move upwards, and a conveying pipe can be conveniently cleaned.

This invention provides a punch carpet that is biodegradable and can be manufactured more easily, as well as a method for manufacturing the punch carpet. [Solution] The punch carpet has a single-layer structure in the nonwoven fabric region. The nonwoven fabric comprises a plurality of entangled rayon fibers 11 and polylactic acid fibers 12, and a binder 13. The binder 13 fixes the rayon fibers 11 and polylactic acid fibers 12 and is made of polylactic acid. The rayon fibers 11 and polylactic acid fibers 12 are non-melting at the melting point of the polylactic acid that constitutes the binder 13.

The invention relates to a high-elasticity fabric with high dimensional stability, which comprises a fabric body, a bonding layer and an elastic fabric layer, the fabric body sequentially comprises a skin-friendly layer, an elastic connecting layer and a thermal insulation layer from top to bottom; the skin-friendly layer, the elastic connecting layer and the heat preservation layer are woven into a whole through weft knitting air layer tissue. The bottom end of the fabric body is fixedly connected with the top end of the elastic fabric layer through the bonding layer; the skin-friendly layer is formed by weaving wrap yarns, core yarns of the wrap yarns are spandex filaments, and yarn skins of the wrap yarns are blended yarns formed by uniformly mixing and spinning far infrared heating acrylic fibers / antibacterial viscose fibers; the elastic connecting layer is formed by weaving SORONA monofilaments, the heat preservation layer is formed by weaving hollow polyester filaments, and the elastic fabric layer is formed by vertically interweaving warp yarns and weft yarns in a plain weave structure; the fabric is high in size stability, good in environmental protection property and good in skin-friendly heat retention property.

The invention relates to the technical field of textile fibers, in particular to a solid kapok viscose fiber and a preparation method thereof. According to the solid kapok viscose fiber provided by the invention, the viscose fiber is modified by adopting active components of kapok, so that the solid kapok viscose fiber with an antibacterial effect is prepared. The solid kapok viscose fiber combines the advantages of the kapok and the viscose fiber, and has the advantages of light weight, good heat retention property, high antibacterial and acarus killing effect, good moisture absorption and quick drying property and strong mechanical property. The solid kapok viscose fiber provided by the invention overcomes the defects of poor antibacterial property, low fiber strength and low stability of common viscose fibers, and the solid kapok viscose fiber is remarkably superior to traditional viscose fibers in functionality, sustainability and application range; wide application prospects are realized in the fields of clothes, home textiles, industrial textiles, filling materials and the like.

The invention discloses a method for recycling air bellow hair, and relates to the technical field of textile. Comprising the following steps: step 1, processing air bellow wool in a rolling cutting manner, step 2, classifying the processed wool fibers according to hues, and dyeing the wool fibers according to a brightness gradient by adopting the principles that the raw white is dyed with light color, the light color is dyed with medium-dark color, the medium-dark color is dyed with dark color, and the dark color does not need to be dyed; 3, the dyed wool fibers, the regenerated polyester fibers and the regenerated viscose fibers are mixed according to the mass proportion, flexible spinning is carried out, resultant yarn is obtained and used for spinning, the mass proportion of the wool fibers does not exceed 60%, and the content of the regenerated polyester fibers is higher than that of the regenerated viscose fibers by 8-15%; the air bellow wool treatment process is optimized, and wool fiber damage is reduced through the precise shearing technology; a low-temperature short-process dyeing technology and a stock solution coloring technology are combined, so that energy consumption and pollution are reduced; by fusing wool spinning and cotton spinning processes, high-quality yarns are produced, and the blending suitability is improved.

The application discloses a high-purity and difficult-graphitization viscose-based carbon fiber felt preparation method and equipment, the high-purity and viscose-based carbon fiber felt has impurity element content ratio less than 50ppm, single fiber strength greater than 120Mpa, and graphitization degree less than 85% after 2650 DEG C treatment; the application also provides a high-purity, high-strength and difficult-graphitization viscose-based carbon fiber felt preparation equipment which is composed of a felt inlet air seal section, a heat treatment section, a cooling section, a felt outlet air seal section and a cooling section. The metal impurities in viscose fibers are removed through pickling, the viscose fibers are needled into a felt, impregnated with a catalyst, dried, and then subjected to catalytic dehydration in a micro-negative pressure inert atmosphere, and finally carbonization and graphitization are carried out to obtain the high-purity and high-strength viscose-based carbon fiber felt with low ash content and less tar pollution. The raw materials used in the application are rich, the preparation process is simple, the equipment corrosion is effectively controlled, the high-purity and high-strength product is prepared, and the product production efficiency is greatly improved.

The invention discloses a waterproof high-strength fabric and a preparation process thereof, belongs to the technical field of textiles, and solves the problems that fibers are oxidized after being in contact with outside air for a long time and then start to be oxidized and aged, so that the fibers lose the original luster and firmness, the service life of the fabric is short, and the fabric cannot be damaged. According to the technical scheme, the waterproof breathable fabric is characterized by comprising a fabric body and waterproof breathable films arranged on the two sides of the fabric body, the fabric body is formed by weaving composite yarn, and the composite yarn comprises a core layer, a polypropylene fiber skin layer wrapping the outer side of the core layer and a viscose fiber skin layer located on the outermost side; the core layer is formed by spirally interweaving polyester fibers and spandex fibers, and the polyester fibers and the spandex fibers are fixedly connected. The fabric which can be renovated after being used for a long time can be obtained, the fabric can be renovated for multiple times, the surface texture of the renovated fabric can recover gloss and hand feeling, and production is convenient and fast.

The utility model provides a non-woven fabric capable of being dispersed, which relates to the technical field of non-woven fabric production and comprises a first composite layer, a fiber layer and a second composite layer which are sequentially arranged from top to bottom. The first composite layer and the second composite layer are formed by mixing tencel fibers and viscose fibers, and the fiber layer is wood pulp fibers; a plurality of first cross star holes are distributed in the first composite layer and the second composite layer in a matrix manner, so that the problem that the non-woven fabric in the prior art is formed by directly entangling three layers of fibers in a spunlace manner, so that the fibers are difficult to disperse when being in contact with a water body is solved. According to the non-woven fabric, the technical effect of improving the dispersing property of the non-woven fabric is achieved on the premise that the strength of the non-woven fabric is not influenced.