553 results about "Silk fiber" patented technology

The invention relates to the technical field of non-woven fabrics, in particular to a production process of a functional fiber woven non-woven fabric body, the non-woven fabric body comprises a non-woven fabric base body, middle layers are arranged on the upper portion and the lower portion of the non-woven fabric base body, and outer layer bodies are arranged on the outer sides of the middle layers; the middle layer is compounded with the upper part and the lower part of the non-woven fabric base body through polyurethane glue, and the dosage of the polyurethane glue is 20g / m < 2 >; the non-woven fabric body is formed by mutually matching a non-woven fabric base body, a middle layer and an outer layer body, the non-woven fabric base body is formed by weaving first modified spandex fibers and polyester fibers, the middle layer is formed by interweaving second modified polyester fibers and hemp fibers, and the outer layer body is formed by spraying an outer layer agent. The product is excellent in wear resistance, stain resistance, heat preservation and breaking strength, remarkable in comprehensive coordination effect and excellent in washing resistance and ultraviolet stability resistance.

The invention relates to the technical field of high-performance polyester fibers, and discloses a dry skin-friendly fiber fabric, a preparation method thereof and application of the dry skin-friendly fiber fabric in underwear. The preparation method of the dry and comfortable skin-friendly fiber fabric comprises the following steps: carrying out reaction on terephthalic acid, ethylene glycol and an antibacterial modified diamide diol monomer to obtain modified polyester; the modified polyester and the polyester master batch are mixed and spun, and the modified profiled polyester fiber is obtained; dipping the modified profiled polyester fiber in a finishing liquid containing a biopolymer finishing agent to obtain the high-performance polyester fiber, blending and knitting high-performance polyester fibers, cotton fibers and mulberry silk fibers to obtain a dry skin-friendly fiber fabric; the dry and comfortable skin-friendly fiber fabric has excellent antibacterial performance, moisture absorption performance and skin-friendly performance, the skin can be kept dry and comfortable, safe and comfortable wearing experience is provided for a wearer, and the dry and comfortable skin-friendly fiber fabric can be used for underwear and other underwear materials.

A terry fabric includes a first side configured to exhibit absorbency capabilities and a second side configured to exhibit cooling capabilities. The first side can include a spun fiber loop including a plurality of pile warp yarn, and the second side can include a plurality of weft yarn and a plurality of ground warp yarn, wherein at least one of the plurality of weft yarn and the plurality of ground warp yarn includes synthetic filament yarn.

The invention discloses a preparation method of a low-cost in-situ doped silicon nitride fiber, which comprises the following steps: taking one or two of vinyl liquid polycarbosilane and vinyl polysilazane as a precursor, adding a boron monomer, an organic solvent and metallocene, and doping to prepare a doped silicon nitride fiber containing boron, titanium, hafnium, zirconium and other elements; carrying out melt spinning on the doped precursor to obtain a doped precursor; then boron-containing active gas introduced in the crosslinking process can be combined with active sites on the surface of the protofilament fiber or directly deposited on the surface of the fiber; and finally, the boron-containing active gas reacts with ammonia gas in the high-temperature sintering process to generate a boron nitride (BN) surface coating. Thus, the temperature resistance of the silicon nitride fiber is improved, the problem that a coating of a prefabricated body of a silicon nitride fiber ceramic matrix composite material with a complex structure is not uniform is solved, meanwhile, high cost of a secondary coating and large damage to the fiber are avoided, the composite material preparation process flow is simplified, and the invention provides the low-cost preparation method for in-situ doping of the silicon nitride fiber.

The invention discloses a controllable degradation antibacterial filament fiber and a preparation method thereof, a calcium alginate filament fiber is prepared by using a wet spinning technology, and the calcium alginate filament fiber is strongly modified by physical and chemical methods respectively. The chemical modification adopts a cross-linking agent for modification, and the physical modification adopts cellulose nanocrystal (CNC) as a reinforcing material. The tensile breaking strength is improved to 43.25 cN / dtex from 16.35 cN / dtex which is not modified, the tensile breaking strength is improved by 2.6 times, and the degradation period is prolonged to 7 days from 2 days. On the basis, berberine is introduced into the fiber, so that the mechanical enhancement effect can be further achieved by means of the electrostatic attraction effect between materials, the antibacterial performance is obtained, and the antibacterial rate can reach 95.28%.

The invention relates to a dry-jet wet-spinning ultra-high-performance polyacrylonitrile-based carbon fiber and a preparation method thereof, and belongs to the technical field of carbon fibers. A preparation method of dry-jet wet-spinning ultra-high-performance polyacrylonitrile-based carbon fiber comprises the following steps: S1, mixing acrylonitrile, a comonomer, a chain transfer agent, an initiator and a solvent, carrying out polymerization reaction through a solvent dropwise addition method, and preparing a spinning solution; wherein the comonomers comprise a first comonomer, a second comonomer and a third comonomer; s2, the spinning solution is subjected to solidification, water washing, water drawing, oiling, drying and steam drawing, and precursor fibers are obtained; s3, the precursor fiber is sequentially subjected to pre-oxidation, low-temperature carbonization, high-temperature carbonization, graphitization, surface treatment, sizing and drying, and the ultra-high-performance polyacrylonitrile-based carbon fiber is prepared. Wherein the pre-oxidation adopts four-stage pre-oxidation treatment. The strength and modulus of the carbon fiber can be effectively and synergistically optimized, and the carbon fiber with high strength and high modulus is prepared.

The invention relates to the technical field of hydrogel, in particular to oriented degummed silk fiber reinforced polyvinyl alcohol hydrogel as well as a preparation method and application thereof.The hydrogel comprises degummed silk fiber and polyvinyl alcohol, has an anisotropic structure and can effectively enhance the fracture toughness and crack propagation resistance of the hydrogel. Through the assembly of the bionic fibrous ring structure, the multi-scale architecture of the natural intervertebral disc fibrous ring is simulated, the native fibrous ring structure is copied, and the mechanical microenvironment of the fibrous ring is simulated. The hydrogel and the artificial intervertebral disc have high toughness, long-term stability and biocompatibility, are particularly suitable for intervertebral disc repair, can stably bear biological load for a long time in intervertebral disc repair, and have relatively high application value.

Product use by means of the invention for dyeing and coloring or the like of substrates made of fibers, fiber cables, yarns made of cut and filament fibers, flat structures such as woven fabrics, knitted fabrics, warp-knitted fabrics, non-woven fabrics and ready-made clothing and home textiles and the like, in particular of textiles with 100% or with mixtures thereof. These can be made of plant and animal natural fibers, stem fibers, synthetic fibers of petrochemical or natural origin as well as special fibers such as soy fibers, milk fibers, bamboo fibers or fibers that are difficult to dye such as aramid, polypropylene.

The invention discloses a multifunctional coating with a compact-porous double-layer structure on the surface of magnesium alloy and a preparation method, and belongs to the technical field of biological materials. According to the multifunctional coating, magnesium alloy serves as a substrate, a compact layer and a porous layer are sequentially stacked from the substrate to the outside, and the compact layer is composed of two-dimensional transition metal carbide / nitride, calcium silicate nanowires and a positively charged polymer. The porous layer is composed of copper-containing complex / biopolymer composite fibers, mineralized silk fibers loaded with bioactive metal ions and astragalus polysaccharide on the surface, and natural polymers. According to the multifunctional coating with the compact-porous double-layer structure prepared on the surface of the magnesium alloy, the porous layer on the surface layer has a unique porous structure, growth and proliferation of osteoblasts can be well promoted, meanwhile, the multifunctional coating has the characteristics of pressure resistance, bacteria resistance and oxidation resistance, the compact layer on the bottom layer can improve the corrosion resistance of the magnesium alloy, and the service life of the magnesium alloy is prolonged. The coating is particularly suitable for surface coating of magnesium alloy implant materials and can be used in the field of medical instruments.

The application relates to a method for determining pre-oxidation process parameters of polyacrylonitrile-based carbon fibers, and belongs to the technical field of carbon fibers. The method for determining pre-oxidation process parameters of polyacrylonitrile-based carbon fibers comprises first-stage pre-oxidation, the first-stage pre-oxidation temperature is determined based on DSC of the original fiber, and the first-stage pre-oxidation time is determined based on a cyclization index of the fiber at the first-stage pre-oxidation temperature. More reasonable pre-oxidation parameters can be determined, and polyacrylonitrile-based carbon fibers with high strength and high modulus can be prepared.

The invention discloses a core-shell structure polystyrene / polylactic acid spinning fiber loaded with pheromone and a preparation method of the core-shell structure polystyrene / polylactic acid spinning fiber. A coaxial electrostatic spinning method is adopted for preparation, a core solution is a polylactic acid solution and sex pheromone mixed solution, a shell solution is a polystyrene solution, a formed spinning film is collected on an aluminum roller wrapped with sulfate transparent paper, and the polystyrene / polylactic acid spinning fiber of the core-shell structure is obtained. The fiber is uniform in spinning morphology and has a core-shell structure, and the diameter of the fiber is about 2.24-3.55 microns. The method is simple, economical and efficient, has good adjustability in solution preparation and electrostatic spinning processes, is suitable for preparing polystyrene / polylactic acid spinning fibers with core-shell structures capable of loading insect sex pheromones of different types and concentrations, and realizes long-acting slow release of sex information through a polystyrene and polylactic acid dual slow release system. The slow release period of the sex pheromone in the spinning fiber can reach 8-14 weeks, and the sex pheromone can be applied to the aspects of biological prevention and control of neutral pheromone isotropic interference prevention and control of pests for a long time.

The utility model relates to the field of fabrics, in particular to a moisture-absorbing and sweat-releasing blended fabric. The moisture-absorbing and sweat-releasing blended fabric comprises a moisture-absorbing layer and a breathable layer, wherein the moisture absorption layer is formed by weaving a plurality of first yarns and a plurality of second yarns; the first yarns comprise polyester fibers and multi-strand yarns wrapping the polyester fibers; the multi-strand yarn is formed by twisting tencel fibers and silver ion antibacterial fibers; the breathable layer is formed by weaving a plurality of third yarns, and the third yarns are formed by twisting linen fibers and cashmere fibers; a plurality of ventilation holes are formed in the ventilation layer; the first yarns have high elasticity, comfort, hygroscopicity and antibacterial activity, and the second yarns also endow the moisture absorption layer with excellent moisture conductivity; the breathable layer formed by weaving the third yarns is provided with a plurality of breathable holes, so that the moisture absorption layer after moisture absorption can be quickly dried, and the blended fabric has the excellent effects of moisture absorption, sweat releasing and quick drying.

The invention relates to an ultrahigh down-proof down jacket fabric and a preparation process thereof.The preparation process includes the steps that silk fibers, spinning auxiliaries and modified SiO2 precursor sol are evenly mixed in proportion to obtain spinnable sol, the spinnable sol is prepared into a modified SiO2 nanofiber membrane through an electrostatic spinning technology, and after the modified SiO2 nanofiber membrane is dried, an aerogel elastic membrane is obtained; the fabric is attached to base cloth, and the ultrahigh down-proof down jacket fabric is prepared; wherein the spinning auxiliary agent is at least one of a polyvinyl acetal solution and a poly (butylene succinate) solution. The prepared ultrahigh down-proof down jacket fabric has high air permeability and high down-proof performance, and is good in toughness, good in elasticity and washable, so that the high air permeability and the high down-proof performance of the fabric can be kept for a longer time.

The invention discloses a ground directional drilling goaf passing leaking stoppage method which comprises the steps that hole data of a goaf are obtained, and the hole data comprise the hole depth and the crack width; when the width of the crack is larger than 5 mm, a foundation plugging material is adopted for conducting foundation plugging on the hole of the goaf, and the foundation plugging material is an inert material and cement paste; judging whether basic plugging fails or not to obtain a first judgment result; if the first judgment result shows that the basic plugging fails, a flexible plugging material is adopted for conducting medium-term plugging on the holes in the goaf, and the flexible plugging material is a material formed by mixing hemp fiber, sawdust, soybeans and water. According to foundation plugging, a large channel is filled through particle bridging, a primary plugging layer is formed after cement paste is solidified, the flexible material can adapt to trace deformation of surrounding rock through deformation filling, and micro cracks of a foundation layer are plugged. Through graded gradient filling, the leaking stoppage effect can be greatly improved.

According to the filament non-woven fabric and the manufacturing equipment thereof, the filament non-woven fabric is a fiber net composed of curled filament fibers with a spiral structure, the curled filament fibers are composed of high-melting-point resin and low-melting-point resin, the melting point difference of the high-melting-point resin and the low-melting-point resin is at least 20 DEG C, and at least part of the surface layer of each curled filament fiber is the low-melting-point resin. The low-melting-point resins on the surface layers of the adjacent curled filament fibers are mutually fused and bonded together, and the fluctuation ratio of the air permeability at different positions on the filament non-woven fabric is not more than 10%. Due to the fact that the curled filament fiber net is conveyed to the conveying net curtain or other fiber nets along with rotation of the rotary net, the impact force generated when the curled filament fiber net directly falls to the conveying net curtain or the previous fiber net is reduced, and the defects that fibers at different positions of the formed filament non-woven fabric are not evenly distributed, and the uniformity of the net face is poor can be overcome. Therefore, the filament non-woven fabric is uniform in mesh surface and has good air permeability and fluffiness.

According to the different-shrinkage elastic composite filament DTY fiber and the elasticity enhancing processing method thereof, the semi-dull polyester POY, the T8 modified polyester POY and the modified polyester FDY are selected and combined, the processing path is optimized, and the prepared composite filament fiber has bulkiness, high elasticity and different-shrinkage effects. Through introduction of T8 modified polyester and processing of the T8 modified polyester in a low-temperature first hot box, untwisting and orientation are completed, and the high-elasticity and soft characteristics are stimulated. Meanwhile, the second hot box is closed, so that the two false-twisted POY filaments are naturally and slowly cooled and shaped in the closed channel, damage to a T8 polyester curling structure is avoided, the high shrinkage potential of the T8 polyester is reserved, and meanwhile energy conservation and consumption reduction are achieved. Besides, the FDY is introduced through an independent low-tension path, and is combined with the POY at an outlet through a bottom net technology, so that the strength loss of the FDY caused by excessive drafting or high-temperature treatment is avoided, and the mechanical property of a final product is guaranteed while a unique three-dimensional texture is formed.

The invention discloses a preparation method of a fluorine-free super-hydrophobic and self-cooling synergistic silk fabric. The preparation method comprises the following steps: forming an M-O-Si bond from a silane coupling agent macromolecule and an inorganic metal oxide (MXOY) by using a covalent bond grafting method to obtain silane modified encapsulated MXOY particles; the obtained particles and amino-terminated organic silicon emulsion are subjected to an in-situ amination reaction on silk fibers to form the fluorine-free super-hydrophobic self-cooling synergistic organic-inorganic composite silk fabric. MXOY with high refractive index endows the silk fabric with a self-cooling function, and an organic silicon structure can change the roughness of the surface of the silk fabric and reduce the surface energy of the silk fabric, so that the silk fabric has fluoride-free super-hydrophobic performance. In addition, the MXOY shows better durability under the barrier action of an organic silicon structure. The fluorine-free super-hydrophobic self-cooling silk fabric prepared by the invention can be applied to the fields of high-end intelligent textiles, special protection and the like.

The invention belongs to the technical field of hemp double-layer fabrics, and relates to a production method of a moisture-absorbing and quick-drying hemp double-layer fabric. After the hemp fibers are pretreated, the surface structure is improved, the hydrophilicity is enhanced, sweat and moisture discharged by a human body can be rapidly absorbed, and the skin is kept dry and comfortable; the hemp blended yarn is spun by introducing moisture-conducting and quick-drying fibers, so that moisture can be quickly conducted and evaporated in the fabric, the quick-drying speed of the fabric is increased, and the wet feeling and discomfort are reduced; the spun silk fibers are introduced, so that the comfort of the fabric is improved, and meanwhile, the fabric has good hand feeling and comfort and does not irritate the skin.

The invention relates to the technical field of rail transit cables, in particular to a preparation method of a bending-resistant sensor cable for a high-speed motor train unit. The preparation method comprises the steps of conductor three-layer twisting and annealing, insulating layer gradient extrusion and plasma treatment, filling, twice wrapping, double-layer shielding, double-layer sheath co-extrusion and irradiation crosslinking post-treatment. The structure of the bending-resistant sensor cable sequentially comprises a high-elasticity fiber rope filler, a copper alloy conductor with a TPEE insulating layer, a thin flame-retardant cloth wrapping layer, an elastic silica gel inner shielding layer, a tinned copper wire and fiber filament outer shielding layer, a thin non-woven fabric wrapping layer and a cross-linked polyurethane double-layer sheath from inside to outside. The bending resistance of the cable exceeds 500,000 times, the cable works stably at the temperature of-50 DEG C to 125 DEG C, the service life is prolonged by 2-3 times, and the cable is suitable for the harsh environment of the high-speed motor train unit.

The invention discloses a preparation method of a functional silk woven fabric with a jacquard effect, and relates to the technical field of fabric production.The preparation method comprises the steps of raw material preparation, antibacterial agent preparation, fiber pretreatment, fiber blending, jacquard weaving, finishing, inspection and packaging. In the fiber pretreatment step, polyester fibers, cotton fibers, silk fibers and aramid fibers are pretreated respectively. By introducing plasma treatment and ultraviolet radiation advanced technologies, the silk fabric is pretreated before finishing, plasma treatment can improve physical and chemical properties of the surface of the fabric and increase adsorption sites and binding force of a finishing agent, follow-up functional treatment is facilitated, a flame retardant and an anti-wrinkle agent are combined with fibers more firmly, and the flame retardant and the anti-wrinkle agent are not prone to falling off. The ultraviolet irradiation can initiate a chemical reaction on the surface of the fabric, so that active species such as free radicals are generated on the surface of the fiber.

The tencel and wool blended yarn comprises a core yarn and a first wrapping fiber layer which are arranged in sequence, the core yarn comprises air conditioning fiber roving and wool roving yarn which are doubled and twisted, and the first wrapping fiber layer is made of tencel fibers. According to the tencel and wool blended yarn, due to the fact that the air conditioning fiber roving and the wool roving yarn are adopted, fibers are fluffy, and a good heat preservation effect is achieved. The tencel fiber layer used on the outer side enables the yarn to have good hand feeling, luster and moisture absorption effect.

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.

The present invention discloses a boron-containing, high-temperature-resistant, near-stoichiometric silicon carbide fiber and a preparation method thereof. The preparation method includes a spinning stage, an infusibility stage, a pre-sintering stage, a densification sintering stage, and a nitriding stage, and is characterized in that: in the infusibility stage, the metal-doped polycarbosilane precursor fiber obtained in the spinning stage is subjected to a boron-doping reaction in an atmosphere containing boron trichloride and a cross-linking reaction in an atmosphere of a gaseous hydrocarbon having a carbon-carbon double bond. The method is simple to operate, has high production efficiency, low production cost, and is easy to use for large-scale industrial production. The prepared boron-containing, high-temperature-resistant, near-stoichiometric silicon carbide fiber has the advantages of low oxygen content, high degree of densification, few defects, stable structure, high tensile strength modulus, large grain size, and good high-temperature resistance, oxidation resistance, and creep resistance.

The invention relates to the technical field of fabrics, in particular to an integrated ultra-light running fabric and a preparation method thereof.The preparation method includes the following steps that superfine denier polyester fibers and tencel fibers are blended according to the mass ratio of (7-9): 2 to form composite yarns; the composite yarn is subjected to pre-improvement treatment, after improvement is finished, a composite yarn pre-improved body is obtained, the composite yarn pre-improved body serves as warp yarn, modified spandex serves as weft yarn, the warp yarn and the weft yarn are fed into a circular knitting machine according to the weight ratio of (8-10): 3 to be subjected to knitting weaving treatment, and after treatment is finished, the ultra-light running fabric is obtained. According to the integrated ultralight running fabric, superfine denier polyester fibers and tencel fibers are blended, the fabric is based on the blending of the superfine denier polyester fibers and the tencel fibers, the densities of warp yarns and weft yarns are as low as 9.8-10.0 tex and 8.5-9.0 tex respectively, the weight per unit area of the fabric is greatly reduced due to the design of the fine denier fibers and the low linear density, the ultralight characteristic is achieved, and the body load during running is reduced.

The invention provides a dyeable high-temperature-resistant modified meta-position aramid fiber and a preparation method thereof. The modified meta-aramid fiber is mainly prepared from a spinning solution prepared from m-phenylenediamine, methyl 3, 5-diaminobenzoate, 3, 3 '-diaminodiphenyl sulfone and an isophthaloyl dichloride copolymer through dry spinning, and the dye uptake of a disperse dye is not lower than 85%; the thermal decomposition temperature is not less than 400 DEG C. The preparation method comprises the following steps. S1, fully continuous polymerization; s2, continuously neutralizing and conveying; s3, direct spinning; and S4, fiber forming and post-treatment. The method has the advantages that (1) the quality difference between batches in the traditional intermittent method is eliminated, and the uniformity and stability of the product performance are realized; and the preparation process is compact, the production efficiency is high and the energy consumption is low. And (2) the dyeing performance of the prepared fiber is obviously improved, the inherent high-temperature-resistant characteristic of the aramid fiber is maintained, and the mechanical property is excellent. And (3) the application range of the meta-position aramid fiber is expanded.

The invention discloses a wear-resistant and fibrillating-resistant spun silk fiber and a preparation process and application thereof, a layer of smooth and continuous amino acid-containing polymeric membrane protective layer with uniform thickness is formed on the surface of the spun silk fiber, the thickness of the polymeric membrane protective layer is 50-500nm, and the thickness of the polymeric membrane protective layer is 50-500nm. The polymeric membrane protective layer enables the spun silk fibers to be wear-resistant and anti-fibrillating, the spun silk fibers are not easy to damage after being treated by dyeing and after-finishing processes, and the prepared fabric can still keep good hand feeling and color after being washed for multiple times. Besides, the preparation process is simple, efficient and wide in applicability, and the prepared wear-resistant and fibrillating-resistant spun silk fiber can be used for spinning and weaving independently or together with other fibers and can be applied to the fields of clothes, underwear, home textiles, filling and the like.

The invention provides a multi-metal / carbon coated iron-chromium flow battery electrode material and a preparation method thereof, and belongs to the technical field of iron-chromium flow battery energy storage. The preparation method comprises the following steps: carrying out pre-oxidation treatment, carbonization treatment and graphitization treatment on a precursor fiber felt to obtain a graphite felt; the preparation method comprises the following steps: dipping a graphite felt in a potassium hydroxide solution, then drying and carrying out primary calcination treatment, dipping an activated felt in a metal salt solution, then drying and carrying out secondary calcination treatment, dipping a multi-metal loaded activated felt in a dopamine solution containing a conductive agent, then adding a buffer solution until the pH value of the solution is 8-10 so as to enable dopamine to be self-polymerized, and then carrying out tertiary calcination treatment so as to obtain the multi-metal loaded activated felt. The multi-metal / carbon coated iron-chromium flow battery electrode material is obtained. The multi-metal / carbon coated iron-chromium flow battery electrode material disclosed by the invention has high hydrophilicity, high hydrogen evolution overpotential, high specific surface area, high energy efficiency and long cycle stability.

The invention relates to spinning equipment, in particular to an aramid fiber spinning method and equipment, when a plurality of silk threads for textile processing pass through a sectional warping auxiliary mechanism, the silk threads are placed in a silk guide groove body on a silk guide cylinder, after the silk threads are placed, a matched cover plate is pressed on a supporting cross rod, and meanwhile, the silk threads are fixed on the supporting cross rod. The clamping groove bodies arranged at the two ends of the auxiliary cover body at the bottom side position of the matching cover plate are in clamping contact with the bucket-shaped cover body, the auxiliary cover body and the wire guide cylinder play a role in limiting the silk threads, in the process, the silk threads do not need to penetrate through the limiting holes one by one, multiple strands of silk threads can be placed and separated at the same time, and the production efficiency is improved. The operation difficulty of workers is reduced, and the positive effect on improving the spinning efficiency is achieved; in addition, the sectional warping auxiliary mechanism arranged in the scheme can provide a sectional limiting function and can also provide a cleaning effect on the conveyed silk threads, and the positive influence on improvement of the spinning processing quality is achieved.

The invention relates to the field of textiles, and particularly discloses antistatic and anti-pilling double-sided flannelette and a preparation process. The antistatic and anti-pilling double-sided flannelette is composed of warp yarns, weft yarns and a suede fiber layer, the warp yarns and the weft yarns adopt the same multi-fiber blended yarns and consist of the following fibers in percentage by weight: 50%-60% of modified polyester fibers, 12%-18% of modal fibers, 18%-22% of anti-pilling polyester fibers and 8%-12% of tencel fibers; the suede fiber layer is formed by short fibers through a fuzzing process and is composed of the following fibers in percentage by weight: 46%-55% of cationic polyester, 27%-32% of conductive acrylic fibers and 18%-22% of bamboo fibers. The antistatic and anti-pilling double-sided flannelette has the advantages of durability, excellent antistatic property, excellent anti-pilling property, softness and comfort.

The invention discloses a method for preparing a closed-pore-rich soft and hard carbon composite material from silk fibers and coal liquefied asphalt and sodium electricity application of the closed-pore-rich soft and hard carbon composite material, and belongs to the field of novel composite material preparation and electrochemical energy storage. The preparation method comprises the following steps: firstly, pre-carbonizing silk fibers to obtain pre-carbonized silk fibers; secondly, an open pore structure is constructed on the pre-carbonized silk fiber through chemical activation, and activated silk carbon fiber is obtained; thirdly, the surface of the activated silk carbon fiber is coated with coal liquefaction pitch through an impregnation method; and finally, co-carbonization is carried out to complete packaging of the open pores, and the composite material rich in the closed pore structure is obtained. The soft and hard carbon composite material disclosed by the invention has the characteristic of rich closed pores, and shows excellent specific capacity and low-voltage platform capacity; benefited from the core-shell synergistic effect of the inner-layer hard carbon and the outer-layer soft carbon, the conductivity and the sodium ion diffusion efficiency of the material are improved, so that the rate capability and the cycling stability of the material are enhanced; in addition, soft carbon packaging is used for replacing traditional ultrahigh-temperature carbonization to construct a closed-pore structure, and the preparation process is safe, controllable and energy-saving.