638 results about "Viscose" patented technology

The invention discloses a mixed gas-imitating gel fiber as well as a preparation method and application thereof, and belongs to the technical field of fiber materials. The mixed gas-imitating gel fiber is prepared from the following components: cellulose dispersion liquid, a silane coupling agent and viscose in a mass ratio of (1-3): (0.2-0.8): (5-10), comprising the following steps: adding sodium hydroxide into a cellulose dispersion liquid, adjusting the pH value to be alkaline, adding viscose and a silane coupling agent, and carrying out ultrasonic stirring to prepare a mixed spinning solution; the mixed spinning solution is extruded into a coagulating bath through a wet spinning device to be drafted, wet fibers are obtained, and the mixed gas-imitating gel fibers are obtained after freeze drying. The aerogel fiber disclosed by the invention has low heat conductivity coefficient, high mechanical strength and extreme temperature resistance, can solve the problem that the densification and porosity of a traditional fiber structure are difficult to balance, and effectively expands the application prospect of the aerogel fiber in the fields of cold protection, warm keeping and the like.

The invention provides a preparation process and preparation equipment for a viscose-based short fiber solid felt with a gradient pore structure, and relates to the technical field of solid felt preparation, and the preparation process comprises the following steps: carrying out pre-needling reinforcement treatment on a carded fiber web, and carrying out pre-needling reinforcement treatment on the carded fiber web through a pre-needling machine in a needling unit, with the needling frequency of the pre-needling machine being 500-800 times / min. The viscose-based short fiber solid felt with the gradient pore structure is prepared by selecting viscose-based short fibers with different linear densities and lengths, reasonably mixing and proportioning and combining a gradient needling treatment process, the preparation process is simple and easy to implement, the pore gradient distribution of the solid felt can be accurately regulated and controlled, the special requirements of different fields on the pore structure of the material are met, and the application prospect is wide. The problems that the pore structure of the viscose-based short fiber solid felt prepared by the traditional process is usually relatively single and uniform and is difficult to meet the strict requirements of some special application scenes on gradient change of the pore structure of the material are solved.

The invention relates to a high-temperature-resistant UV viscosity-reducing adhesive tape and a preparation method thereof, and belongs to the technical field of UV viscosity-reducing adhesive tapes. The high-temperature-resistant UV viscosity-reducing adhesive tape comprises a base material layer, an adhesive layer and a release layer which are sequentially arranged, wherein the adhesive layer is prepared from an adhesive; the adhesive is prepared from the following components in parts by weight: 100 parts of an acrylate polymer, 0.1 to 2 parts of a cross-linking agent, 1 to 3 parts of a photoinitiator, 0.2 to 0.8 part of an antioxidant and 35 to 100 parts of a first solvent; the acrylate polymer comprises the following components in parts by weight: 70-80 parts of a soft monomer, 20-30 parts of a hard monomer, 5-10 parts of a polyfunctional monomer, 0.1-1 part of an initiator, 0.05-0.2 part of a polymerization inhibitor, 1-7 parts of an end-capping reagent and 100-200 parts of a second solvent. The UV viscosity-reducing adhesive tape can still keep excellent viscosity-reducing performance after being subjected to high-temperature treatment, and the effect that the viscosity is not reduced or even improved after being subjected to high-temperature treatment can be achieved.

The invention provides a bionic hollow petal-shaped SiC fiber porous thermal insulation material as well as a preparation method and application thereof, and belongs to the technical field of thermal insulation materials. The preparation method comprises the following steps: taking a viscose-based carbon fiber felt as an initial structure template, dipping the carbon fiber felt in siloxane sol, taking out the carbon fiber felt, and carrying out suction filtration to remove redundant sol on the surfaces of carbon fibers; curing the impregnated carbon fiber felt, and carrying out heat treatment to obtain the carbon fiber felt of which the carbon fiber surface is covered with a uniform SiC coating; and carrying out thermal oxidation treatment on the carbon fiber felt with the SiC coating to obtain the bionic hollow petal-shaped SiC fiber porous thermal insulation material. Compared with a traditional sol-gel method, the method has the advantages of being short in preparation period, low in cost, small in volume shrinkage rate and the like, and the obtained bionic hollow petal-shaped SiC fiber porous heat insulation material has good rebound resilience and excellent high-temperature heat insulation performance and has wide application prospects in a high-temperature oxidation environment.

The present invention uses viscose-based carbon fiber as raw material, chops it and mixes it with auxiliary material A solution, then puts the mixed chopped fibers into a vacuum tube furnace for heating to obtain pretreated carbon fiber, then mixes auxiliary material B solution with the pretreated carbon fiber to obtain mixed carbon fiber, and puts the mixed carbon fiber into an oven for cross-linking and curing to obtain a mixed gel, and finally performs a high-temperature cracking reaction on the mixed gel to finally obtain a short-fiber hard thermal insulation composite material. The viscose-based short-fiber thermal insulation composite material of the present invention has low thermal conductivity, good mechanical properties, and excellent density and high-temperature resistance.

The present invention relates to the field of fibers, and in particular, to a preparation method for a protein composite fiber. The preparation method comprises spinning, pretreatment, surface treatment, preparation of modified mineral powder, loading, mixing and crosslinking. A pretreated nascent fiber is immersed in a protein composite solution to be in full contact with modified extract mineral powder and a soluble protein, and a crosslinking reaction is carried out; the structure of the dried fiber is more compact; the extract and the soluble protein are more stable in the fiber while the fiber strength is improved; and the loss rate is less than 1% after washing for 50 times. The protein composite fiber prepared by the present invention is skin-friendly and soft, has good moisture absorption and moisturizing effects, and is rich in amino acid and protein, wherein the content of the protein is up to about 12%. Moreover, in the present invention, a common fiber is used as a base material, thereby achieving natural antibacterial, anti-oxidation and deodorizing effects while endowing fibers such as viscose, acrylic fibers, polyester, chinlon, vinylon, and polypropylene fibers with the advantages of a natural protein on the basis of ensuring excellent properties of the base material itself, and thus the range of application is wider.

The invention relates to the technical field of color detection, in particular to a color difference calculation optimization method and system for archaized linen viscose reactive dyeing. Comprising the following steps: monitoring a fabric motion state in real time, calculating a motion speed and displacement, and determining a spectrum acquisition opportunity and a position compensation parameter; illuminating the surface of the to-be-detected fabric at an acquisition position through a polarized light source, and performing polarized spectrum data acquisition in the normal direction of the surface of the fabric to obtain reflection spectrum information; exciting the surface of the to-be-detected fabric by adopting an ultraviolet light source, collecting fluorescence spectrum data, and identifying different fiber areas; calculating fiber density distribution in the fiber area, and constructing a layered weight system; calculating chromatic aberration of the fiber area based on the reflection spectrum information, extracting chromatic aberration characteristics, and measuring and calculating an antique degree quantification result; setting a color difference threshold value standard according to an antique degree quantification result, and adjusting a color difference threshold value according to an evolution trend; and based on the layered weight system and the chromatic aberration threshold, performing weighted calculation on the chromatic aberration value of the fiber region to obtain a comprehensive chromatic aberration evaluation result.

The invention discloses a polyester fiber acoustical board with high yield strength. The polyester fiber acoustical board comprises a micro-perforated metal surface layer, a gradient density polyester fiber layer, a honeycomb metal framework layer and an elastic damping bottom layer which are sequentially stacked and fixed through mucilage glue from top to bottom. A vertically-distributed metal surrounding plate is arranged around the side edge of the micro-perforated metal surface layer, the metal surrounding plate and the micro-perforated metal surface layer are of an integrally-formed structure, and the gradient density polyester fiber layer and the honeycomb metal framework layer are wrapped by the metal surrounding plate. And the honeycomb metal framework layer is fixed with the adjacent upper and lower layers through mucilage glue, and is also fixed with the metal coaming through rivets. By means of the innovative composite lamination design, the strength defect of a traditional polyester fiber acoustic board is effectively overcome. The micro-perforated metal surface layer and the integrally formed metal coaming form a rigid outer frame, so that the internal fiber layer is protected from mechanical damage, and the overall flexural rigidity is remarkably improved through the bearing effect of the metal framework.

The invention provides a viscose-based short fiber solid felt wet forming process and system, and relates to the technical field of solid felt wet forming, and the process comprises the following steps: immersing a wet felt blank into an adjustable overflow sizing tank, applying a phenolic resin glue solution, removing redundant glue solution through a stainless steel suction box, then feeding into a multi-section curing oven, and drying and curing in sections at 120-200 DEG C to obtain the viscose-based short fiber solid felt. The humidity in the multi-section curing oven is controlled to be 10%-30%. The wet felt blank is fed into a multi-section curing oven, the material gradually adapts to the curing environment in the preheating section and is prepared for subsequent curing, the main curing section is rapidly heated through a natural gas burner, the main curing process of the material is achieved, and it is ensured that the performance of the material is stably improved, and the material is slowly cooled in the cooling section, so that internal stress caused by sudden temperature drop is avoided; optimal treatment can be achieved in all stages, the product quality is effectively guaranteed, and the problems that the temperature control precision of a conventional curing oven is poor, and the material buckling deformation risk is increased are solved.

The utility model relates to the technical field of textile, in particular to a comfortable and environment-friendly regenerated viscose knitted fabric, and the pattern of the comfortable and environment-friendly regenerated viscose knitted fabric is circulated by six paths from bottom to top, the weave structure of the first path sequentially comprises a lower needle cylinder floating thread weave, a lower needle cylinder tuck stitch, an upper dial tuck stitch and an upper dial floating thread weave; wherein the second path of stitch structure comprises a lower needle cylinder tuck stitch, a lower needle cylinder floating thread stitch, an upper dial floating thread stitch and an upper dial tuck stitch in sequence; the third path of weave structure comprises a lower needle cylinder floating thread weave, a lower needle cylinder floating thread weave, an upper dial small looping weave and an upper dial small looping weave in sequence; the texture structure and the fabric formed by blending the selected textile fibers have good hygroscopicity, air permeability and elasticity, are suitable for making comfortable sportswear, and meet the requirements of consumers for high quality and comfort.

The invention relates to the field of industrial data processing and analysis, in particular to an intelligent production system for polyester-viscose color spinning antistatic fabric and a medium. The method comprises the following specific implementation steps: collecting acoustic data streams generated by breakage of conductive fibers, synchronously collecting image data streams, carrying out refined classification and quantification on yarn hairiness and broken ends, fusing multi-source data by adopting Kalman filtering, and inputting the fused multi-source data into a gated recurrent neural network to predict future quality deviation. An optimal control action sequence is generated based on a model prediction control algorithm, and multiple technological parameters are actively adjusted to avoid production defects. According to the method, the fundamental transformation from passive defect detection to active defect avoidance is realized, the defect prediction precision and the control optimality are remarkably improved, and the diagnosis and insight ability of the production process is enhanced through refined defect classification.

The invention relates to the technical field of adhesive preparation, and discloses a shaving board biomass adhesive preparation adding device and an adding method thereof.The shaving board biomass adhesive preparation adding device comprises a spherical mixing bin, a heating rod is arranged in the shell wall of the spherical mixing bin, a feeding port is fixedly connected to the top of the spherical mixing bin, and a hopper is fixedly connected to the top of the feeding port; a discharging pipe is fixedly connected to the bottom of the spherical mixing bin, an intermittent feeding mechanism is arranged in a feeding port, and the method comprises the following steps that firstly, raw materials are prepared; 2, the adding amount of the raw materials added at a time of an intermittent feeding mechanism is set; and step 3, mixing the raw materials, intermittently adding the raw materials, and realizing process optimization by accurately setting the adding amount each time, so that the inherent advantage of intermittent adding can be amplified, the stability, efficiency and controllability of viscose preparation can be further improved through quantitative control, and the dynamic balance in a reaction system is ensured.

The invention relates to a carboxyl-terminated polyester-based polyurethane UV viscosity-reducing adhesive and a preparation method thereof, and belongs to the technical field of new materials. The polyurethane UV viscosity-reducing adhesive provided by the invention is used for wafer manufacturing. The preparation method comprises the following steps: dissolving itaconic acid and 1, 4-butanediol in a solvent, and carrying out a heating reaction under the action of a catalyst to prepare a carboxyl-terminated prepolymer; carrying out ring-opening reaction on the carboxyl-terminated prepolymer and glycidyl methacrylate under the action of a catalyst to prepare hydroxyl-terminated polyester; the preparation method comprises the following steps: reacting hydroxyl-terminated polyester with isocyanate, and introducing a chain extender and a photoinitiator to prepare the rapidly-cured UV viscosity-reducing adhesive. The polyurethane UV viscosity-reducing glue is coated on a polyolefin film, the peeling strength at 180 degrees before ultraviolet irradiation after curing is 23.21-30.29 N / 25 mm, and the peeling strength at 180 degrees after ultraviolet irradiation is 0.07-0.19 N / 25 mm. According to the invention, the carboxyl-terminated prepolymer and glycidyl methacrylate are subjected to a ring-opening reaction, the viscosity reducing effect after UV irradiation is significant due to increase of double bonds, the 180-degree peel strength after UV irradiation is reduced, and no adhesive residue and degumming are realized.

The invention discloses a phase-change temperature-adjusting blended fabric and a preparation method thereof, and belongs to the technical field of functional fabrics. The fabric comprises a fabric layer, a temperature adjusting layer and a coating, the fabric layer comprises meta-aramid porous fibers and flame-retardant viscose, the interior of the fabric layer is of a honeycomb structure, and the porous fibers are prepared from meta-aramid and metal organic framework nanoparticles through wet spinning; the component of the temperature adjusting layer is phase change microcapsules which are embedded in the honeycomb structure; and the component of the coating is waterborne polyurethane. Based on the strong adsorption effect and chemical immobilization effect of the honeycomb porous structure in the aramid porous fiber on the phase change microcapsule, efficient loading of the phase change material in the fabric can be realized, and the problem of leakage caused by large volume change of the traditional phase change material in the fabric is solved; by means of the excellent serviceability of the flame-retardant viscose, the fabric can be endowed with good application potential; the fabric has outstanding flame retardance and thermal protection capability, and has important value in the aspect of personal thermal protection in extreme environments such as extremely cold environments.

The utility model relates to the technical field of industrial tail gas treatment, in particular to an oxidized tail gas treatment device. Comprising a hydrogen peroxide oxidation tail gas pipeline, a cold box, a first-stage separator, a first tail gas heat exchanger, a turbine expansion generator set, a second-stage separator, a second tail gas heat exchanger, an oxidation tower middle cooler, an activated carbon fiber adsorption tower and a working solution / hydrogen peroxide separator, and the hydrogen peroxide oxidation tail gas pipeline is communicated with the first-stage separator through a cooling channel of the cold box. According to the utility model, the circulating water outlet of the cooler in the oxidation tower is used for heating, so that the energy is saved, the generating capacity of the turbine expansion generator set is increased by 60%, the temperature of the tail gas reaches 30 DEG C before entering the activated carbon fiber adsorption tower, the aromatic hydrocarbon adsorption efficiency is increased, the aromatic hydrocarbon content in the discharged tail gas is reduced, and the steam quantity required in the desorption work is reduced; pVA-based active carbon fibers are used for replacing viscose-based active carbon fibers, the surface area is increased, and the aromatic hydrocarbon adsorption effect is better.

The invention provides an absorber of a novel environment-friendly composite fiber sanitary napkin as well as a preparation method and application, and belongs to the technical field of hygienic products, the absorber of the novel environment-friendly composite fiber sanitary napkin comprises at least three layers of fiber net structures, an upper surface layer and a lower surface layer are made of ES fibers, a middle layer is made of bamboo-based modified viscose yarns, and the middle layer is made of bamboo-based modified viscose yarns. All the layers form a tightly connected structure through microwave crosslinking, and according to the sequence of the upper surface layer, the middle layer and the lower surface layer, the pore diameter is of a continuous gradient pore structure with gradually reduced pore diameter. The absorber of the prepared environment-friendly composite fiber sanitary towel has excellent water absorption, reverse osmosis resistance and antibacterial durability, and efficient, comfortable and reliable nursing can be provided for a user in the menstrual period.

The invention discloses an anti-puncture composite material and a preparation method thereof, and belongs to the technical field of anti-puncture composites.The two sides of a pre-coated carbon fiber cloth are coated with a composite adhesive, composite aerogel films are pasted on the two sides of the pre-coated carbon fiber cloth respectively, a layer of fabric is pasted through the coated composite adhesive after rolling compounding is conducted, rolling compounding is conducted again, and the anti-puncture composite material is obtained. And curing to obtain the anti-puncture composite material. The pre-coated carbon fiber cloth is impregnated with tetrapod-like nano zinc oxide whiskers and can play a role of barbing, the composite adhesive is added with flaky nano carbon nitride powder, compared with spherical filler, the composite adhesive is more easily limited by the tetrapod-like nano zinc oxide whiskers, slippage between the pre-coated carbon fiber cloth and the composite aerogel film is reduced, and the composite aerogel film is more durable. The puncture force can be better dispersed into the whole composite material, so that the anti-puncture performance is improved; the composite aerogel film mixed with the calcium phosphate particles can effectively disperse stress and prevent crack propagation, and the compression resistance and puncture resistance of the puncture-proof composite material can be improved.

A seamless warm-keeping garment is characterized in that a plurality of grooves are formed in the front face of first screen cloth, the grooves form bumps on the back face of the first screen cloth, second screen cloth is arranged on the first screen cloth, first containing cavities are formed in the positions of the grooves, and first filler is arranged in the first containing cavities; the first screen cloth and the second screen cloth are provided with a sewing area on the periphery of the first accommodating cavity, and a first sewing thread is arranged in the sewing area; mucilage glue is arranged at the sewing area position of the front face of the second screen cloth, the first film layer covers the front face of the second screen cloth, and the first film layer and the second screen cloth are bonded through the mucilage glue; and the lining is arranged on the back surface of the first screen cloth and covers the bulge. The first film layer is fixed on the first screen cloth through mucilage glue and covers the first screen cloth, and the first film layer can form a seamless windproof layer on the surface of the garment through the first sewing threads. And the second filler staggered with the first filler is arranged between every two adjacent bumps, so that the overall thermal insulation performance of the garment is enhanced. And the bending structure of the second filler is not easy to shift in the garment.

The invention relates to the technical field of composite fabrics, and discloses cool composite denim containing mint fibers and a preparation method of the cool composite denim. The preparation method comprises the following steps: S1, preparing the lining fabric from the mint chinlon filaments; s2, cotton-viscose blended siro spinning 21-count yarn serves as warp yarn, blended fiber of natural mint fiber and cotton blended elastic yarn serves as weft yarn, denim fabric containing the mint fiber is prepared, and the denim fabric serves as surface fabric; the warp yarns and the weft yarns are interwoven in a three-up one-down right twill manner; s3, the inner layer fabric and the surface layer fabric are attached, stacked, aligned and sewn, and basic composite cloth is obtained; s4, the basic composite cloth is treated with the antibacterial finishing liquid, and the antibacterial modified composite cloth is obtained; and S5, treating the antibacterial modified composite fabric with the graphene finishing liquid to obtain the cool composite denim.

The invention relates to the technical field of viscose staple fiber production, in particular to a defoaming device for improving the defoaming efficiency of viscose staple fiber production and a production process, the defoaming device comprises a defoaming barrel, a detachable filler barrel group and a linkage driving system, the top of the defoaming barrel is provided with a sealing assembly, and the interior of the defoaming barrel is of a modular two-stage structure. The first filling barrel is connected with the clamping mechanism through the limiting rod, and the driving assembly drives the clamping plate to be quickly locked. The second filling barrel is in linkage with the clamping mechanism through the sliding rod and is matched with the pressing ring to achieve assembly, the mechanical linkage design of the limiting block and the clamping rod is adopted for the connecting assembly, and tool-free disassembly and assembly are supported. In the aspect of the production process, the two-stage spiral filler strengthens the fluid shear force, prolongs the flow path and improves the defoaming efficiency; the modular design facilitates cleaning of deposited scales, and traditional cutting maintenance is avoided. The sealing assembly is combined with a waste gas condensation recovery system, energy consumption is reduced, and waste gas emission is controlled. According to the scheme, through structural innovation and process integration, the maintenance cost is reduced, the fiber quality is guaranteed, and efficient, continuous and environment-friendly operation is achieved.

The invention relates to the technical field of adhesive tapes, and discloses a high-viscosity power-on viscosity-reducing adhesive tape and a preparation method thereof.The adhesive tape comprises an adhesive layer and release films attached to the two sides of the adhesive layer, the adhesive layer is prepared by adopting acrylate monomers, a carbon nano tube modification functional agent and the like as raw materials through free radical polymerization, and the release films are attached to the two sides of the adhesive layer; wherein the carbon nanotube modified functional agent is prepared by modifying a macromolecular substance with a block connection structure on the surface of a carbon nanotube, and the macromolecular substance contains an alkenyl functional group and can participate in the subsequent polymerization process of an acrylate monomer, so that the carbon nanotube is uniformly dispersed to form a continuous conductive network; compared with the prior art, the high-temperature-resistant adhesive has the advantages that the high-temperature-resistant performance of the adhesive can be improved, electrifying viscosity reduction of the adhesive is facilitated, the macromolecular substance can serve as a cross-linking agent, cohesive energy of the adhesive is improved, the adhesive performance of the adhesive can be further improved, and in addition, rigid rings and a large number of ether bonds in the structure of the macromolecular substance can effectively enhance the high-temperature-resistant performance and the adhesive performance of the adhesive.

The invention provides a preparation process of chemical modified super-hydrophilic polyester staple fiber special for spunlace, which comprises the following specific steps: preparing a low-structure modified polyester melt, preparing a polyacrylamide copolymer, and producing and preparing the chemical modified super-hydrophilic polyester staple fiber special for spunlace. The preparation method of the low-structure modified polyester melt comprises the steps of slurry preparation, an esterification process and a polycondensation process, the slurry preparation is used for preparing PTA slurry, the esterification process is used for converting the PTA slurry into a BHET monomer, and the polycondensation process is used for converting the BHET monomer into the low-structure modified polyester melt. In the field of hygienic materials, the chemical modified ultrahigh hydrophilic polyester staple fiber special for spunlace can replace 20%-40% of viscose in polyester-viscose blending, the production cost of enterprises is effectively reduced, meanwhile, due to the high elongation rate, the pressure of high-pressure water jet can be effectively absorbed, and tight intertwining and entangling points are formed without breakage.

The utility model discloses a kind of viscose products round-pressing round die cutting knife frame, it is related to viscose products technical field, and it includes: rack, die cutting roller is rotatably arranged in the inside of rack, and die cutting roller is used to cut material;Support frame, support frame is set to the inside of rack, and circular bar is slidably connected in the inner wall of support frame, and connecting frame is fixedly connected at the bottom of circular bar, and brush roller is rotatably connected in the inner wall of connecting frame;Lifting drive mechanism, lifting drive mechanism is set to the outside of connecting frame, and lifting drive mechanism is used to drive connecting frame lifting.The utility model carries out cutting to material using die cutting roller, when needing to clean die cutting roller, connecting frame is driven to lift by lifting drive mechanism, connecting frame drives brush roller to lift, makes brush roller and die cutting roller paste, automatically clean die cutting roller by brush roller and die cutting roller reverse, save the process of manual stop cleaning, avoid frequent stop, improve work efficiency.

The invention relates to the field of fabric preparation, in particular to a cold-proof and oxygen-resistant fabric applied to extreme working conditions and a preparation method of the cold-proof and oxygen-resistant fabric. The fabric is formed by compounding a honeycomb base body outer layer, a middle buffer layer and a functional inner layer. The outer layer is hexagonal honeycomb grid base cloth formed by weaving basalt filaments and PTFE modified polyimide core-spun yarns, and composite colloid is injected for stepped curing; the middle layer is formed by sewing a silicon dioxide aerogel felt subjected to electrostatic spraying of paraffin microcapsules and a flame-retardant pre-oxidized fiber felt; and the inner layer is an oxygen adsorption layer formed by activating polyimide / flame-retardant viscose blended yarns and then grafting the activated polyimide / flame-retardant viscose blended yarns with a ZIF-8 material. All the layers are separated through polybenzimidazole membranes, and the composite fabric with excellent cold resistance, flame retardance, oxygen resistance and structural stability is finally obtained through gradient hot pressing, water-cooling shaping and surface flame-retardant coating treatment and is suitable for protective equipment in an extreme environment.

The utility model discloses a biochemical pool aerobic strain monitoring device suitable for viscose staple fiber production, which comprises a reaction tank, a bacterial liquid dilution tank, an aeration device and a COD (Chemical Oxygen Demand) detector, the reaction tank is provided with a liquid inlet, a bacterial liquid inlet, a gas delivery pipe and a sampling port for extracting supernatant liquid, the liquid inlet is connected with a biochemical pool through a first pipeline, and the bacterial liquid dilution tank is connected with the biochemical pool through a second pipeline; the bacterial liquid inlet is connected with a bacterial liquid dilution tank through a second pipeline, the bottom of the reaction tank is provided with an aerator and connected with an aeration device through a gas conveying pipe, and the sampling port is connected with a COD detector through a third pipeline. The device disclosed by the utility model has the characteristics of simple and practical structure and low manufacturing cost, and solves the arbitrariness problem of selection and throwing of aerobic bacteria in a biochemical pool in glue making and spinning reaction procedures of a viscose staple fiber production process; the treatment cost of biochemical raw water in the biochemical pool in the glue making and spinning reaction procedures of the viscose staple fiber production process can be effectively controlled, and the effect of improving the related working efficiency is achieved.

The utility model discloses a high-barrier nano composite film production device, which relates to the technical field of composite film production and comprises a film combining machine body, and a first guide roller, a second guide roller and two film combining compression rollers are rotatably connected between the inner walls of the two sides of the upper part of the film combining machine body, a gluing assembly and a glue scraping assembly are sequentially arranged between the first guide roller and the second guide roller, a glue frame used for bearing excessive glue on the gluing assembly and the glue scraping assembly is fixedly connected between the inner walls of the two sides of the lower portion of the film combining machine body, and a glue pump pumps the glue in the glue frame into an arc-shaped glue spraying plate; the outer wall of the fabric gluing sleeve is coated with glue through glue spraying holes, the driving motor drives the gluing roller to rotate, the fabric gluing sleeve can carry and adhere the glue to the lower side of the sub-film, the sub-film half surrounds the outer side of the gluing roller, it can be guaranteed that the sub-film is fully glued, and the gluing efficiency is improved. In addition, the mode that the bottoms of the sub-films are coated with the glue enables redundant glue to drip into the glue frame in time under the action of gravity, and the glue can be reused.

The invention discloses a blended yarn containing metal short fibers and a preparation method thereof.The blended yarn containing the metal short fibers comprises the following components: the metal short fibers, functional short fibers and matrix short fibers, the metal short fibers are made of at least one of steel wires, tungsten wires and silver-plated alloy wires, the components of the metal short fibers are 5-18%, the functional short fibers are made of metal fibers, and the matrix short fibers are made of metal fibers. The component of the functional short fiber is 20-35%, the functional short fiber is at least one of ultra-high molecular weight polyethylene, aramid fiber, glass fiber and basalt fiber, the component of the matrix short fiber is 47-72%, and the matrix short fiber is at least one of chinlon, polyester, polypropylene fiber, viscose, cotton fiber and fibrilia. The blended yarn material which is low in cost, high in stability and capable of meeting the cutting-resistant and conductive requirements at the same time is developed, the blended yarn material can be suitable for industrial protective gloves, anti-static work clothes, electromagnetic shielding fabric and other scenes at the same time, the application range of the blended yarn material is widened, and the blended yarn material has the high competitive advantage.

An apparatus (100) is provided for making nonwoven fabric including a plurality of distinct plants for making nonwoven fabric each developing along a main axis (1a) and a main plane (1b) and configured to dispense via an outlet (10a) a plurality of either polymeric or cellulose or viscose filaments along and parallel to one or more dispensing directions (4a) transverse to the main plane (1b) forming from the outlet (10a) a respective layer of filaments along or parallel to a dispensing plane (100a) transverse to the main axis (1a) and the main plane (1a); and a conveying station (12) downstream of the outlets (10a) and including calendering means (13) configured to calendering said layers together, and one or more conveyors (15) each placed between a respective outlet (10a) and the calendering means (13) and configured to convey a respective layer, separately from other layers, to the calendering means (13) in such a way that the layers are layered together exclusively at the calendering means (13).

The utility model discloses an automobile armrest box heating sheet easy to install, which relates to the technical field of automobile auxiliary equipment and comprises a heating sheet assembly, a reinforcing band is adhered to one side of the front surface of the heating sheet assembly, a sleeve is arranged on one side of the heating sheet assembly, and four power lines are inserted into the sleeve in a penetrating manner. A 4P connecting plug-in is arranged at the end, away from the heating piece assembly, of the sleeve, four terminals of the 4P connecting plug-in are electrically connected with the four power lines respectively, the heating piece assembly comprises a non-woven fabric layer, and back face mucilage glue is arranged on the edge of the lower surface of the non-woven fabric layer in a surrounding and adhering mode. The heating piece assembly can be directly adhered to the handrail through the back adhesive, power connection can be performed through the 4P connecting plug-in unit in an inserting mode, the installation mode is simple and convenient, the two sides of the handrail can be heated at the same time through the two heating wires, a driver can place the arms in winter, and the heating effect is good. And the armrest is more comfortable to use.

The invention relates to the technical field of textile equipment, and discloses an automatic spooling device for tencel and cashmere blend fiber manufacturing and a winding process thereof.The automatic spooling device is characterized in that a pair of first air cylinders are fixedly installed on one side of a connecting plate, the common end of the two first air cylinders is fixedly connected with a pressing plate, and cutters are rotationally connected to the top and the bottom of one side of the connecting plate; a wire harness containing groove is formed in the pressing plate, a first air hole is formed in one end of the wire harness containing groove, a second air hole is formed in the other end of the wire harness containing groove, a movable plate is slidably connected to the other side of the connecting plate, and an air pipe is installed between the movable plate and the connecting plate and fixedly connected with the second air hole and the push plate. A branch pipe is fixedly connected to one end of the air pipe, a plurality of connecting strips are fixedly installed on one side of the moving plate, a winding drum is fixedly connected between every two connecting strips, and a negative pressure nozzle is fixedly installed at one end of each winding drum. According to the automatic winding device for tencel and cashmere blend fiber manufacturing, the risk of air duct blockage is reduced, and the stability and working efficiency of equipment are improved.