157results about "Filament forming substance forming" patented technology

A preparation method of the outdoor high-strength polyester fiber with the radiation refrigeration function comprises the following steps that titanium dioxide, silicon dioxide, silicon carbide and zirconium phosphate are blended and ground in proportion and then dispersed in an acetone solution, a dispersing agent is added, and nano-particle dispersion liquid is formed through ultrasonic treatment; mixing the nano-particle dispersion liquid with the polyester chips; feeding the mixed composite material into a screw extruder for melt blending to form a spinning solution; after being accurately metered by a metering pump, the spinning solution is extruded by a spinneret plate to form fiber tows, and the spinneret plate is provided with a slow cooling and heating device; and performing post-treatment on the fiber tows to obtain the high-strength polyester fibers. According to the invention, a specific combination of titanium dioxide, silicon dioxide, silicon carbide and zirconium phosphate is selected, and a specific slow cooling technology and high-power stretching shaping are matched, so that the fiber has excellent radiation refrigeration performance and mechanical strength, and can be widely applied to the fields of outdoor clothing, awning cloth, car clothing and the like.

The invention discloses a water-repellent warm-keeping chinlon 6 hollow fiber and a preparation method thereof, and belongs to the technical field of functional fiber materials. The preparation method comprises the following steps: preparing a water-repellent master batch from a fluorine-containing acrylic copolymer, polysiloxane, hydrophobic nano silicon dioxide, a chinlon 6 slice and an antioxidant, melting the water-repellent master batch and the chinlon 6 slice by adopting a melt spinning method, and spinning through an annular spinneret plate hole formed by two C-shaped grooves, so as to prepare the water-repellent warm-keeping chinlon 6 hollow fiber. The fiber has water repellency and heat preservation performance, is soft in texture, capable of absorbing sweat, quick to dry, light in weight, capable of keeping warm, good in water repellency effect and long in waterproof time, and has wide application prospects in the aspect of preparation of outdoor sportswear and high-cold waterproof clothes.

The invention discloses a high-color-fastness washable polyethylene fabric and a preparation process thereof in the field of functional polymer materials. The high-color-fastness washable polyethylene fabric is prepared from the following raw materials: polyethylene resin, maleic anhydride-acrylic acid copolymer grafted polyethylene, dopamine-silane composite modified polyethylene, magnesium stearate and an antioxidant. Wherein the maleic anhydride-acrylic acid copolymer grafted polyethylene is prepared by copolymerizing maleic anhydride and acrylic acid and then blending and granulating with polyethylene, and carboxyl and acrylate groups are introduced to enhance the binding force with dye; the dopamine-silane composite modified polyethylene is prepared through polyethylene surface hydroxylation, dopamine self-polymerization modification and silane grafting reaction, and the acting force and hydrophobicity between fibers are doubly improved through a catechol group and an epoxy group. According to the prepared fabric, the color fastness and the washing resistance are remarkably improved, meanwhile, the original characteristics of light weight and chemical corrosion resistance of polyethylene are kept, and the application scene is expanded.

The invention relates to the technical field of fabric production, and discloses a chemically-modified acetic acid-imitated weaving fabric forming device which comprises a bottom plate, a support, a stirring barrel and a heat preservation box. Materials of corresponding discharging hoppers are accurately input into the stirring barrel in proportion, heating wires heat the stirring barrel, stirring is matched with a stirring frame, and water evaporation is accelerated; a humidity sensor monitors the water content in real time, after the water content reaches the standard, a valve plate rotates to feed materials to a heating cylinder, a second spiral conveying plate stirs the materials to form a molten state, the materials are preliminarily filtered through a discharging hole filter screen, blockage is prevented through a scraper, secondary filtering is conducted through a screen exchanger, the melt pressure and the flow speed are stabilized, and the product quality is improved; uniform dispersion is realized through diversion of a diffusion tuyere of the net forming box, and directional arrangement is broken; the lower air suction box adsorbs the fibers to the conveying belt, the device automatically monitors the thickness and adjusts the flow speed, a fiber net is pre-reinforced through a needle plate, a water-based adhesive is sprayed through a spray head, the fiber net is dried and cured through a drying frame, then the fiber net is pressed through a pressing shaft, and stability is enhanced.

The utility model discloses a melt filtering device meeting double-screw feeding, and relates to the technical field of non-woven fabrics, the melt filtering device meeting the double-screw feeding comprises a filter main body, one side of the filter main body is provided with two melt inlet and outlet seats, and the two melt inlet and outlet seats are arranged on the other side of the filter main body. Discharging switching valves are arranged at the front end and the rear end, close to the top end, of the melt inlet and outlet seat, and feeding switching valves are arranged at the front end and the rear end, close to the bottom end, of the melt inlet and outlet seat. The problems that in the prior art, part of slices in a large drying tower need to be blown to a small drying tower for secondary drying and heat preservation, then melt conveying is conducted through a small screw extruder and a small filter, the distance between the large melt filter and the small melt filter is long, temperature control cannot be completely consistent, and electric energy and heat energy losses are large are solved.

A solid electrolyte membrane having favorable characteristics and a method of forming the same are provided. A solid electrolyte membrane 40 is composed of a non-woven fabric (ultrafine fiber non-woven fabric) UFN and solid electrolyte particles 4AP incorporated therein. Also, the non-woven fabric UFN includes a fiber (ultrafine fiber UF) made of a resin containing a polar filler. A method of manufacturing the solid electrolyte membrane 40 includes a step of preparing the non-woven fabric UFN including a fiber made of a resin containing a polar filler, a step of applying a slurry S containing the solid electrolyte particles 4AP onto the non-woven fabric UFN, and a step of heating while pressurizing the slurry S on the non-woven fabric UFN. Further, the non-woven fabric UFN is formed by making the resin containing the polar filler be a fibrous form by a laser electrospinning method.

The utility model discloses a drawing device for fiber processing, which comprises a base, a driving mechanism is mounted on one side of the base, a cooling mechanism is mounted on the other side of the base, an extrusion mechanism is mounted on the outer side of the top end of the base, a heating device is arranged on the inner side of the top end of the base, and a winding mechanism is placed on one side, far away from the base, below the cooling mechanism. The driving mechanism comprises a rotating motor, a belt is arranged at the output end of the rotating motor, the belt is connected with the extrusion mechanism, the extrusion mechanism comprises a round pipe, a through groove is formed in the top of the end, close to the driving mechanism, of the round pipe, a feeding hopper is arranged on the through groove, and a rotating shaft is rotationally installed in the round pipe; according to the cooling device, a natural cooling mode is replaced for cooling, the cooling effect is good, the phenomenon of wire breakage is avoided, air in raw materials can be exhausted, and the phenomenon of breakage during wire drawing is avoided.

The invention discloses a biphenyl furnace, and belongs to the technical field of biphenyl furnaces. Comprising a biphenyl furnace body, a dual-mode waste heat feedback mechanism and an enhanced heating assembly. A U-shaped heating tube bundle is arranged in the bottom of the biphenyl furnace body; the dual-mode waste heat feedback mechanism is connected with the heating medium outlet and distributes the heating medium through the flow distribution valve group; the intensified heating assembly comprises a heating jacket attached to the bottom of the furnace barrel. According to the biphenyl furnace, the heat medium which is not completely cooled is introduced into the heating jacket or the external heat energy recovery device through the flow distribution valve group, sensible heat is recovered, meanwhile, stepped auxiliary heating is conducted on the dead zone of the furnace bottom, a cold flow layer is eliminated, and the temperature rising rate is increased. Besides, the heating jacket is fixed by adopting an elastic anchoring structure with built-in guide and external suspension, and thermal expansion displacement is compensated by utilizing the pre-tightening force of a spring, so that the problem of stripping failure of a bottom thermal insulation layer is effectively solved, and double improvement of deep utilization of energy and safe operation of equipment is realized.

A method for melt spinning polymer samples, comprising the following process steps: melting at least a fraction of the polymer sample, extruding and bonding a first subset of the melted polymer sample onto a depositing body by means of a nozzle device, spacing the depositing body away from the nozzle device to form at least one thread between the nozzle device and the depositing body, and extruding a second subset of the melted polymer sample through the nozzle device while simultaneously rotating the depositing body about an axis of rotation to stretch and deposit the at least one thread onto the depositing body.

The present application relates to polybutylene terephthalate (PBT) material toothbrush filament technical field, specifically relates to a kind of multifilament version anti-lodging PBT monofilament and preparation method thereof;The preparation method is realized with the basic concept of multifilament to realize the basic form of monofilament, in the drawing process, every three monofilaments are gathered into a multifilament, in the subsequent water cooling, oiling etc. Process path, with the mode of multifilament, drafting, winding forming are completed.In the condition that monofilament specification remains unchanged, corresponding design is carried out to production process, and the quality indexes such as breaking strength, breaking strength variation coefficient, breaking elongation, breaking elongation variation coefficient of monofilament are controlled.In the realization equipment efficiency is improved three times target, product quality is upgraded, and the anti-lodging performance of PBT monofilament is improved.

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.

A bio-nylon fiber containing an antioxidant active ingredient and a method for preparing the same are provided. [Solution] The method for preparing bio-nylon fiber containing antioxidant active ingredients includes the steps of preparing buckwheat leaf extract, preparing filipendula extract, preparing a porous base carrier, amination treatment, modification treatment, loading, preparing a functional masterbatch, and spinning. [Effects] The method for preparing bio-nylon fiber containing antioxidant active ingredients of the present invention can improve the binding performance of the plant extract active ingredients with antioxidant function with nylon fiber, effectively avoiding the problem of the plant extract active ingredients becoming less stable and easily inactivated during the acid dyeing process, effectively avoiding the problem of the plant extract active ingredients affecting the dyeing effect and causing uneven dyeing, and further improving the wash resistance and physical properties of nylon fiber.

The utility model discloses elastic polyester yarn raw material modification mixing equipment which comprises a mixing tank, a servo motor is fixed on a mixing tank cover, and an output shaft of the servo motor is fixedly connected with a rotating shaft; a filtering assembly is fixedly arranged at the bottom end of the rotating shaft and comprises a filtering cylinder and a shunting cylinder; a feeding hole is formed in the sealing cover; a heating plate is arranged on the inner wall of the mixing tank; the shunting cylinder is formed by sleeving a plurality of layers of cylinder rings, a plurality of conical head bulges are arranged on the inner wall of one side, close to the inner layer, of each layer of cylinder ring, the conical head bulges are arranged in a matrix manner, and a through hole is formed in a gap between every four adjacent conical head bulges; the conical head protrusions on every two adjacent layers of cylinder rings are arranged in a staggered mode. According to the mixing equipment, mixed liquid forms trickles through the filtering holes of the inner cylinder, then enters through the through holes of each layer of cylinder ring, is shunted in four directions through the conical head bulges which are distributed in a matrix manner, then enters the next layer through the through holes which are distributed in the matrix manner, and is thrown out through the filtering holes of the outer cylinder after being shunted for multiple times, so that efficient mixing is realized.

The invention discloses a bio-based low-carbon environment-friendly functional furan polyester fiber and a preparation method thereof. The invention belongs to the technical field of macromolecules, and particularly relates to a polyfurandicarboxylic acid cyclohexanedimethanol-ethylene glycol copolyester fiber. The invention also provides a preparation method of the bio-based furan copolyester, and the bio-based furan copolyester obtained according to the preparation method provided by the invention has higher crystallinity and crystallization rate, excellent fiber mechanical properties and remarkable antibacterial property, and is a sustainable environment-friendly fiber with good comprehensive properties. The bio-based furan copolyester fiber and the like can be widely applied to the related fields of conventional clothes, home textiles and the like.

A manufacturing method of a fiber includes: mixing and stirring a plurality of raw materials, to form a mixed liquid, where the plurality of raw materials includes dry copper nanopowder with a particle size not more than 48 nm, a fiber slurry, and an additive; drying the mixed liquid, to remove moisture of the mixed liquid and form a processed raw material; heating the processed raw material, to make the processed raw material be in a semi-molten state; electrifying the processed raw material in the semi-molten state, and then extruding at least one fibril from the processed raw material in the semi-molten state; stretching the at least one fibril; and performing cooling and shaping on at least one stretched fibril, to form a final fiber product.

The invention relates to a method for preparing polypropylene fibers by high-power stretching oriented crystallization, which comprises the following steps of: pretreating raw materials, melting, plasticizing and accurately metering, spinning and forming, and treating by using a three-section temperature control channel: enabling nascent fiber trickles to enter a temperature-controllable channel of a high-temperature slow cooling area, a medium-temperature oriented crystallization area and a low-temperature shaping area which are sequentially arranged from top to bottom; the areas are independently controlled in temperature and have a synergistic effect. According to the method disclosed by the invention, through coordinated regulation and control of three-section type temperature gradient and high-power stretching, a molecular chain is fully unwound and stretched in a high-temperature region firstly, and then is subjected to high-power stretching induction in an optimal crystallization temperature region to form a perfect crystal structure with high orientation, high crystallinity and narrow grain size distribution, so that high-strengthening structures such as shishkebab shish-kebab crystals and extended-chain crystals can be stably obtained; and the tensile strength and the initial modulus of the prepared polypropylene fiber are remarkably improved, the dry heat shrinkage rate is greatly reduced, the mechanical property and the dimensional stability are far superior to those of traditional process products, and the strict requirements of high-end industrial textiles are met.

The present application relates to the technical field of processing environment-friendly fiber melt from waste and old textile fabrics and threads, and particularly relates to an environment-friendly waste thread melt homogenization system and a homogenization method, which comprises a homogenizer cylinder group, a film forming pipe group, a piston module and a power module, the piston module is sleeved outside the film forming pipe, when the piston module moves upwards along the film forming pipe, the environment-friendly waste thread solution flowing on the outer surface of the film forming pipe is scraped off, by arranging the piston module, the environment-friendly waste thread melt formed is scraped and concentrated by the piston module, and is transferred to the side wall of the chamber, and then flows again to form a film, heat exchange is carried out by using the heat in the heat insulation jacket, the film forming pipe is supplemented and lengthened, the environment-friendly waste thread melt in the chamber obtains heat exchange treatment with as long a path as possible, small molecule byproducts are separated, the waste thread melt in some parts does not flow, carbonization is avoided, and the homogenization quality and viscosity of the environment-friendly waste thread melt are improved.

The invention relates to the technical field of chemical fiber production equipment, and discloses a production device of flame-retardant anti-molten-drop chinlon 6 filaments, which comprises a production platform and a console arranged on the production platform, and further comprises a feeding assembly, the feeding assembly comprises a chinlon 6 slice feeding cylinder, a first-stage mixing assembly is arranged below the chinlon 6 slice feeding cylinder, and a second-stage mixing assembly is arranged below the first-stage mixing assembly. The tail end of the first-stage mixing assembly is connected with the second-stage mixing assembly, and the melting assembly is nested on the outer side of the first-stage mixing assembly. According to the device, a two-stage mixing structure of double-screw staggered shearing and planetary gear meshing shearing is adopted, accurate quantity control feeding is achieved through the metering screw, a global uniform shearing field is constructed, a mixing path is prolonged, the technical problems of flame retardant agglomeration and uneven mixing in traditional single-stage mixing are solved, and the flame retardant mixing efficiency is improved. According to the invention, the dispersion precision of the flame retardant in the melt is ensured to reach the required dispersion precision of filament molding, the spinneret orifice blockage and the linear density deviation are avoided through filter plate filtration and multi-stage parameter regulation and control, and the flame-retardant consistency and the molding qualification rate of the chinlon 6 filament are obviously improved.

The application provides a forming process for directly spinning fibers of 6000D or more, and belongs to the technical field of high-performance fibers. Polyester chips are used as raw materials, the polyester chips are added into a screw extruder for melt spinning, a plurality of spinnerets corresponding to the screw extruder respectively extrude protofilaments, the protofilaments enter a drafting and heat setting process and winding to obtain fiber products of 6000D or more. The application can realize direct forming of fibers of 6000D or more, such as 6000D, 7000D, 8000D and 9000D, without doubling, and has the advantages of short process route, short cycle, low energy consumption, low cost, high breaking strength and the like.

The invention relates to the technical field of regenerated fiber manufacturing, in particular to a method for preparing filament fibers from waste PET (polyethylene terephthalate) materials, which comprises the following steps: raw material pretreatment, ultrasonic-assisted depolymerization, continuous polymerization and functional modification, melt direct spinning, grinding of waste yarns in a chemical fiber factory, crushing of waste PET bottles, grinding after cleaning, and obtaining of PET powder; the method comprises the following steps: mixing PET powder with ethylene glycol according to a molar ratio, generating BHET under the action of ultrasonic waves, sequentially carrying out esterification, pre-polycondensation and final polycondensation on the BHET to obtain a regenerated PET melt, adding a modified additive in the esterification reaction, spinning the regenerated PET melt by adopting a one-step process, cooling by cooling air, and winding to obtain the filament fiber. The problems that traditional regenerated PET fibers are single in raw material, complex in process and insufficient in performance are solved, low-cost and high-efficiency preparation of semi-dull, flame-retardant, cationic dyeable and other multifunctional products is achieved, and high-value utilization of waste PET is improved.

The invention discloses a super-soft and high-bulkiness melt-blown warm-keeping flocculus which is prepared from composite melt-blown fibers through airflow drafting, layered net forming and low-temperature shaping, and the composite melt-blown fibers comprise the following raw material components in percentage by weight: 10-15% of modified polylactic acid elastomer, 10-20% of polyester staple fiber, 10-20% of polyester staple fiber, 10-20% of polyester staple fiber, 10-20% of polyester fiber, 10-20% of polyester fiber, 10-20% of polyester fiber, 10-20% of polyester fiber, 10-20% of polyester fiber the content of the polypropylene melt-blown fiber is 65%-75%, the antistatic modifier is 1%-3%, and the softening agent is 0.5%-2%. The invention also discloses a preparation method of the melt-blown warm-keeping flocculus, the production process is simple, the raw materials in the formula are easy to obtain, and the production efficiency is high; the prepared warm-keeping flocculus is more excellent in warm-keeping performance, and compared with traditional warm-keeping materials such as down feather, cotton and cotton-like chemical fibers, the warm-keeping flocculus has the low-carbon and environment-friendly excellent comprehensive performance such as good compression resilience, water resistance, moisture absorption resistance, no caking after water washing, no reduction of the warm-keeping effect after outdoor water spraying and the like, and has a very wide application prospect.

The utility model discloses a kind of regenerated polyester forming mould for chemical fibre with uniform heating structure, including mould, resistance wire and fin, mould is horizontally arranged, the first end of mould is connected with screw extruder, the end of mould is connected with spinning beam, mould is sequentially divided into cylindrical end and conical end along melt flow direction, the outside surface of cylindrical end is embedded with helical resistance wire, the outside of cylindrical end is provided with heat insulation film, resistance wire is located between the outside surface of cylindrical end and heat insulation film, the outside of heat insulation film is provided with hollow heat insulation layer, the inside of cylindrical end is equipped with coaxial heating inner core, the outside surface of conical end is provided with fin, by the inside and outside collaborative heating mode of the multilayer heating structure outside cylindrical end and internal heating, so that melt is kept at uniform and stable temperature in cylindrical end, by setting radiating fin on the surface of conical end, effectively improve heat dissipation efficiency, inhibit the overheating risk of regenerated polyester in melt channel end.

The invention relates to the technical field of polyester preparation, in particular to an intelligent gradient preparation method based on functional polyester fibers, which comprises the following steps: taking a renewable non-bio-based nitrogen-containing raw material as a substrate, introducing into a chemical catalytic reaction kettle protected by inert gas to carry out continuous catalytic cracking reaction, purifying a cracking solution by an ultrafiltration membrane, and drying to obtain the functional polyester fibers. Carrying out an amination reaction with an amination reagent under a microwave-assisted condition to prepare a non-bio-based amine modifier; high-quality preparation of the functional polyester fiber is realized through preparation of a non-bio-based nitrogen-containing modifier, polymerization modification of a polyester matrix, intelligent gradient spinning, nitrogen-containing functionalization treatment and collaborative innovation of a post-treatment process. The method has the beneficial effects that the nitrogen-containing modifier is prepared from renewable non-bio-based nitrogen-containing raw materials, so that the raw materials are green and sustainable; through esterification-polycondensation two-stage melt copolymerization of the double-screw reaction kettle, uniform dispersion of functional components in a matrix is ensured.

The application provides a processing device and method of pure flat eyelash material and pure flat eyelash, and belongs to the technical field of eyelash processing. In order to solve the problem that manual bonding is needed in the processing of existing false eyelashes, the bonding process is time-consuming and laborious, and the work efficiency is low. The eyelash production device comprises a material container, a hot melt spinning device, a cooling device, an extension device and a conveying device, a plurality of rectangular spinning holes are arranged on the spinning plate; the bottom ends of the first tensioning wheel and the second tensioning wheel are in contact with the top of the conveying mechanism, the lower end of the telescopic rod is connected with the cutting block, and a plurality of cutting units are arranged below the cutting block; the application can improve the work efficiency, simplify the processing procedure, save the labor cost, and does not need to manually bond multiple eyelashes, thereby improving the sales volume, expanding the applicable population, and improving the density of the pure flat eyelash.

A low-boiling-point biphenyl mixture and multi-section heating synergistic uniform heat supply biphenyl boiler system comprises a multi-section heating device and a supply device, the biphenyl mixture supply device is connected with the multi-section heating device through a conveying pipeline, the multi-section heating device comprises a preheating section, a heating section and a heat preservation section, and the preheating section is connected with the heating section. Each section is provided with an independent heating element and an independent temperature sensor, and the heating element and the temperature sensor of each section are respectively connected with a controller; the biphenyl mixture comprises cyclohexylbenzene and dicyclohexane. Through the cooperation of the multi-section heating device and the low-temperature biphenyl mixture supply device, the limitation of traditional single-section heating is broken through, the temperature rising process of biphenyl in different stages can be accurately controlled, the heating power of each section is dynamically adjusted, long-distance transmission heat loss is effectively compensated, and the heating efficiency is improved. The problem of non-uniform temperature caused by large size of a biphenyl boiler is solved fundamentally, a stable and uniform heat source is provided for processes such as spinning, and product quality defects caused by temperature fluctuation are avoided.

This invention discloses a wear-resistant washable kraft paper and its preparation process, relating to the field of kraft paper technology. The wear-resistant washable kraft paper is made from high-density polyethylene resin particles, colorants, appearance materials, and functional additives; the colorants include masterbatches, and the appearance materials include water-based polyurethane coatings. The process involves first adding the main raw materials into the feed inlet, followed by the addition of auxiliary materials. These materials enter the raw material mixing container through a hollow transmission rod, positioned in the middle of the container. A stirring mechanism agitates the materials inside the mixing container, allowing the subsequently added colorants and functional additives to diffuse more easily and evenly within the molten high-density polyethylene resin, improving mixing efficiency and speed, and ultimately increasing the production efficiency of the wear-resistant kraft paper.

The invention discloses a polyamide 12 draw-textured yarn with both high resilience and excellent dimensional stability and a preparation method thereof, polyamide 12 slices with the relative viscosity of 2.0-3.5 are dried until the water content is lower than 700 ppm, melt spinning is performed at the temperature of 210-245 DEG C, and winding is performed at the spinning speed of 1000-4500 m / min to prepare a pre-oriented yarn; then the pre-oriented yarn subjected to hot stretching is subjected to false twisting deformation, the draw ratio is 1.20-1.80, the D / Y ratio is 1.5-2.4, the temperature of a deformation hot box is 100-170 DEG C, the temperature of a microwave-assisted shaping hot box is 120-160 DEG C, and therefore the polyamide 12 stretch-textured yarn is obtained. According to the scheme, by optimizing the pre-oriented yarn structure of the polyamide 12 and precisely controlling the texturing process of deformation and heat setting, the problems of narrow processing window and poor stability of the polyamide 12 in high-speed false twist deformation are solved; the prepared polyamide 12 draw-textured yarn not only retains the characteristics of low water absorption and light weight of the original polyamide 12, but also has high elasticity and excellent dimensional stability, and is suitable for the fields of high-end sportswear, swimwear, medical textiles and the like.

The invention discloses a preparation method of an acetic acid-imitated regenerated polyester fiber, and belongs to the technical field of fiber preparation. The method comprises the following steps: a, crystallizing and drying regenerated bright polyester chips; b, the dried regenerated bright polyester chips are subjected to melt extrusion and then conveyed to a spinning manifold, the regenerated bright polyester chips are fed into a spinning assembly to be spun after being metered by a metering pump, primary tows are formed, and the cross section of a spinneret plate discharging hole of the spinning assembly is in a star shape; c, the primary tows are subjected to post-heating, windless area cooling, side blowing cooling, bundling and oiling treatment, pre-interlacing, drafting and sizing, main interlacing and winding treatment, and the acetic acid-imitated polyester fibers are prepared. The acetic acid-imitated regenerated polyester fiber prepared by the invention has mechanical properties and moisture absorption properties.

A solid electrolyte membrane having favorable characteristics and a method of forming the same are provided. A solid electrolyte membrane 40 is composed of a non-woven fabric (ultrafine fiber non-woven fabric) UFN and solid electrolyte particles 4AP incorporated therein. Also, the non-woven fabric UFN includes a fiber (ultrafine fiber UF) made of a resin containing a polar filler. A method of manufacturing the solid electrolyte membrane 40 includes a step of preparing the non-woven fabric UFN including a fiber made of a resin containing a polar filler, a step of applying a slurry S containing the solid electrolyte particles 4AP onto the non-woven fabric UFN, and a step of heating while pressurizing the slurry S on the non-woven fabric UFN. Further, the non-woven fabric UFN is formed by making the resin containing the polar filler be a fibrous form by a laser electrospinning method.