642 results about "Acrylic fiber" patented technology

The invention relates to the technical field of layered composite fabrics, and discloses a light-absorbing and heat-emitting chinlon fabric, a preparation method and application of the light-absorbing and heat-emitting chinlon fabric to thermal fabrics. According to the invention, the fluorine-free and waterproof light-absorbing and heating finishing agent with excellent light-absorbing and heating performance is prepared, then the sulfydryl silane modified chinlon single-layer fabric is subjected to surface finishing by adopting the light-absorbing and heating finishing agent through sulfydryl-alkene click reaction, and the prepared light-absorbing and heating chinlon single-layer fabric is used as the surface layer fabric; the light-absorbing and heating chinlon fabric obtained by compounding the light-absorbing and heating chinlon fabric with the inner layer made of the acrylic fiber / special-shaped section chinlon blended yarn not only has excellent light-absorbing and heating performance, but also has good waterproof performance of the surface layer, good warm-keeping performance of the inner layer and good wearing comfort, and can be applied to warm-keeping fabrics.

The invention belongs to the technical field of court ground materials, and particularly relates to a ground material of a ground throw court and a preparation method thereof. The ground material of the ground throwing field comprises the anti-skid surface layer, the elastic buffer layer and the sound insulation layer from top to bottom, and has excellent sound insulation, impact resistance and wear resistance. The polyvinyl butyral bonded acrylic sound insulation felt and the jute fiber board are used as a sound insulation felt composite material to be laid on the surface of the base layer, so that the sound insulation effect of the ground of the ground throwing field is enhanced, boric acid and phenylboronic acid are compounded to react with siloxane, and reinforced gel prepared by adding a reinforcing material has excellent shear hardening and thermal stability, so that the sound insulation effect of the ground of the ground throwing field is improved. An elastic reinforcing material is prepared by compounding alkali-treated straw fibers and a reinforcing body prepared by compounding the alkali-treated straw fibers and a hydrophobically modified sponge framework, and has remarkable creep resistance and excellent impact hardenability, and the esterified straw fibers prepared by reacting the alkali-treated straw fibers with citric acid are used as a toughening agent to be added into wear-resistant elastic microspheres prepared by rubber, so that the wear-resistant performance of the wear-resistant elastic microspheres is greatly improved. The material has excellent wear resistance, light weight and aging resistance.

The utility model relates to the technical field of acrylic yarn testing, and discloses testing equipment for acrylic yarn production, which comprises a detection frame, the detection frame comprises two support frames, the bottoms of the support frames are fixedly connected with a base, the front surface of the base is provided with a control button, and the tops of the support frames are fixedly connected with a top plate. The tops of the inner sides of the two supporting frames are fixedly connected with a supporting plate, a clamping assembly is installed on the front face of the supporting plate, a detection assembly is installed in the middle of the top of the base, a clamping assembly is installed on the top of the detection assembly, a wire arranging assembly is installed on the front face of the left supporting frame, and a guiding assembly is installed on the front face of the top plate. By arranging the yarn arranging assembly and the clamping assemblies, the yarn does not need to be manually clamped, the yarn does not need to be manually pulled to penetrate through the two clamping assemblies, only broken thread ends at the bottom after detection need to be manually cleaned, the detection efficiency is improved, and the workload of detection personnel is reduced.

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 discloses functional knitted fabric containing carboxyl and amino and a preparation method and application, and belongs to the technical field of functional materials.The preparation method comprises the following steps that acrylic knitted fabric serves as a raw material, cyano on the surface of acrylic and triethylene tetramine are subjected to an addition reaction, amino is grafted to an acrylic matrix, and multi-amino knitted fabric is prepared; amino on the multi-amino knitted fabric and iminodiacetic acid or chloroacetic acid are subjected to carboxylation reaction to generate the functional knitted fabric containing carboxyl and amino. According to the preparation method, an amination and carboxylation two-step method is adopted, amido and carboxyl are grafted to acrylic knitted fabric in sequence, and the carboxyl functionalized knitted fabric is prepared in situ for the first time. The method has the advantages that the advantages of high adsorption sensitivity, deformation resistance and the like of acrylic fiber knitted fabric are organically combined with selective adsorption of carboxyl functional groups on alkaline pollution gas, strength damage and form loss caused when acrylic fibers are directly used for preparing carboxyl fibers are avoided, and material support is provided for application in the aspect of large-air-volume low-concentration ammonia gas purification.

The invention provides a softening agent for acrylic finishing and a preparation method thereof. The softening agent comprises the following components in parts by weight: 12-15 parts of modified amino silicon oil, 8-10 parts of an emulsifier, 1-3 parts of glacial acetic acid, 12-16 parts of polyvinyl alcohol, 5-7 parts of terpolymer silicone oil, 12-15 parts of polyethylene glycol fatty acid ester, 2-3 parts of a stabilizer, 2-4 parts of a stiffness agent and 50-60 parts of water. The softening agent prepared by the invention can enable acrylic fibers to have better bulkiness, softness, elasticity and good stiff and smooth properties.

The invention relates to the technical field of concrete materials, in particular to high-strength concrete and a preparation method thereof. The high-strength concrete is prepared from the following raw materials in parts by mass: 450 to 500 parts of cement, 160 to 200 parts of modified glass beads, 700 to 800 parts of aggregate, 200 to 250 parts of fly ash, 10 to 15 parts of calcium hydroxide, 12 to 15 parts of reinforced fibers, 8 to 12 parts of expansion filler, 8 to 12 parts of high-efficiency water reducing agent and 200 to 220 parts of water, and the reinforced fibers are prepared from steel fibers, basalt fibers and modified polypropylene fibers. The high-strength concrete shows excellent properties in multiple aspects, including improvement of mechanical properties, enhancement of durability and crack resistance, improvement of workability, improvement of self-repairing capability, reduction of temperature cracks and the like, and the high-strength concrete has wide application potential in constructional engineering due to the technical effects.

The utility model relates to a warm-keeping jean fabric and clothes. The warm-keeping jean fabric is formed by weaving warp yarns and weft yarns in a staggered mode. The weft yarn comprises a yarn core, middle yarn surrounding the periphery of the yarn core and outer-layer yarn surrounding the periphery of the middle yarn, the yarn core comprises spandex filaments, the middle yarn comprises polyester filament yarns, the outer-layer yarn comprises blended yarn obtained by blending first short fiber fibers and second short fiber fibers, and the first short fiber fibers and the second short fiber fibers are blended. The first staple fibers comprise at least one of cotton fibers, viscose fibers and modal fibers, and the second staple fibers comprise at least one of acrylic fibers and wool fibers. The warp yarns comprise pure spinning yarns of one or more of cotton fibers, viscose fibers, tencel fibers and modal fibers. According to the warm-keeping jean fabric, through yarn selection of the warp yarn and the weft yarn and cooperation of the organization structure, a good warm-keeping effect and good comfort can be achieved at the same time.

The invention discloses an anti-pilling acrylic fabric and a production method thereof.The production method includes the steps that acrylic fibers and acetate fibers are blended to obtain blended yarn, the blending ratio of the acrylic fibers to the acetate fibers is 50: 50, the spinning count is 50 S, during blending, the specification of the acrylic fibers is 0.8 D * 38 mm, the acetate fibers are 1.2 D * 38 mm cotton-type short fibers, the specification of the acrylic fibers is 0.8 D * 38 mm cotton-type short fibers, the specification of the acetate fibers is 0.8 D * 38 mm cotton-type short fibers is 0.8 D * 38 mm cotton-type short fibers, and the specification of the acrylic fibers is 0.8 D * 38 mm cotton-type short fibers; weaving the blended yarns into a warp satin weave fabric, wherein the warp and weft density is 787 * 374 / 10cm; the fabric is processed through the steps of preparing, spinning, slashing, weaving and finishing and dyeing. According to the invention, the acetate fiber is adopted as a raw material and is blended with the anti-pilling acrylic fiber, so that the acetate fiber has good natural air permeability and quick drying, not only keeps the warm keeping and softness of the acrylic fiber, but also embodies the brilliant color, bright appearance, smooth contact, easy care and wrinkle resistance of the acetate fiber.

The utility model discloses a sunscreen breathable chemical fiber fabric, and relates to the technical field of chemical fiber fabrics. According to the key points of the technical scheme, the inner layer and the outer layer are fixedly connected with each other, a plurality of I-shaped gaps are formed in the inner layer, a plurality of blocking pieces which are symmetrically arranged are fixedly connected to the inner walls of the gaps in the length direction, and the supporting force of the inner layer on the blocking pieces is larger than the gravity of the blocking pieces. One side, close to the inner layer, of the outer layer is fixedly connected with a contact piece which is the same as the corresponding position of the crack, and the sectional area of the crack is inversely proportional to the distance between the contact piece and the inner layer. And the acrylic fibers are arranged to enhance the overall shading and durability of the fabric.

The invention discloses a preparation process of high-elasticity acrylic fibers, and relates to the technical field of acrylic fibers, the preparation process comprises the following steps: uniformly mixing dried cellulose acetate fibers with polyacrylonitrile, pouring into dimethyl sulfoxide, heating and stirring, spinning to obtain nascent acrylic fibers, and carrying out double-diffusion molding, washing, oiling, drying and curling on the nascent acrylic fibers to obtain the high-elasticity acrylic fibers. The preparation method comprises the following steps: preparing acrylic fibers, soaking the acrylic fibers in an antibacterial solution, drying, coating a flame retardant, drying, curing in silica sol, and finally soaking in a hydrophobic solution to obtain the high-elasticity acrylic fibers. According to the preparation process of the high-elasticity acrylic fiber, ammonium polyphosphate and sodium alginate are compounded to serve as a flame retardant, so that in the combustion process of the fiber, sodium alginate is subjected to thermal decomposition, and a compact carbon layer is formed on the surface of the fiber, so that contact between oxygen and the fiber is blocked, and the flame-retardant effect is achieved; meanwhile, sodium alginate can form a three-dimensional network structure in the fiber, so that the heat resistance of the fiber during combustion is improved.

The invention relates to the technical field of yarn winding rollers, in particular to acrylic fiber blended yarn preparation equipment and method.The acrylic fiber blended yarn preparation equipment comprises a yarn winding roller used for winding acrylic fiber blended yarn, the two ends of the yarn winding roller are each sleeved with a storage frame, a connecting plate is fixed to one end of each storage frame, and the connecting plates are fixed to the end of the yarn winding roller through screws; a plurality of partition plates are inserted into the storage rack, inner ring grooves are formed in the inner ring surfaces of the partition plates, outer ring grooves are formed in the outer ring surfaces of the partition plates, rubber covers are fixed into the inner ring grooves, clamping pieces are fixed to the outer ring surfaces of the rubber covers, and hand-screwing screw rods are in threaded connection with the interiors of the outer ring grooves; compared with the prior art, the equipment and the method have the beneficial effects that the function of winding multiple groups of acrylic fiber blended yarns at the same time is realized by mounting the storage rack and the partition plate on the yarn winding roller, the winding efficiency of the yarns is greatly improved, the frequency of replacing the winding roller is reduced, and the production cost is reduced.

The utility model provides a tap water purification device, and belongs to the technical field of tap water purification devices. The tap water purification device comprises a mounting pipe, the purification mechanism comprises a mounting cylinder, the mounting cylinder is arranged in the mounting pipe, and a filter plate is arranged in the mounting cylinder. Through mutual cooperation of the mounting cylinder, the mounting pipe, the filter plate, the connecting pipe, the ultraviolet disinfection lamp, the acrylic fiber cotton layer, the pottery sand filter layer, the activated carbon filter layer and the quartz filter element layer, the mounting cylinder is mounted in the mounting pipe, then a tap water pipe is turned on, impurities are filtered through the filter plate, and then tap water is guided into the connecting pipe. Then tap water flows into the fixed pipe, firstly passes through the ultraviolet disinfection lamp, then sequentially passes through the acrylic cotton layer, the pottery sand filter layer, the activated carbon filter layer and the quartz filter element layer and finally is guided out through the water outlet pipe, so that the tap water is purified and filtered for multiple times, and the purification and filtration effect of the tap water is improved.

The invention discloses a high-permeability composite non-woven fabric and a processing technology thereof, and relates to the technical field of non-woven fabric processing. Comprising the following steps: step 1, coating the surface of a non-woven fabric primary product with a membrane casting solution to obtain a hydrophilic non-woven fabric layer; blending acrylic fibers and silver fibers in a mass ratio of (50-60): 1 to obtain an antibacterial grid layer; carrying out melt extrusion on polypropylene, and then carrying out compression shaping to obtain a hydrophobic non-woven fabric layer; 2, sequentially stacking the hydrophilic non-woven fabric layer, the antibacterial grid layer and the hydrophobic non-woven fabric layer from top to bottom, and performing needling curing to obtain the high-permeability composite non-woven fabric. The composite non-woven fabric has the beneficial effects that the structure of the composite non-woven fabric is designed, so that the hydrophilic performance of the hydrophilic non-woven fabric layer is improved, and the overall permeability of the material is effectively improved; meanwhile, the nano titanium oxide is modified, so that the antibacterial effect and the mechanical property of the material are improved.

The application relates to the field of chemical-proof fabrics, and particularly discloses a flame-retardant chemical-proof fabric and a preparation process thereof. The flame-retardant chemical-proof fabric comprises, from outside to inside, an outer layer, a bonding layer, a framework layer, a bonding layer and an inner layer which are sequentially contacted, the outer layer is a barrier layer, the inner layer is a barrier layer or an adsorption layer, the framework layer is selected from at least one of a composite fabric of aramid fiber / polyimide fiber, a basalt fiber cloth, a glass fiber cloth, a flame-retardant polyester cloth and a flame-retardant acrylic fiber cloth, the barrier layer is selected from at least one of a PVC / TPU composite film, a PVC film, a PTFE film, a PE film, silicone rubber, fluororubber, butyl rubber, chloroprene rubber and natural rubber, and the adsorption layer comprises a mixed fabric layer formed by nylon fiber and polyester fiber containing an adsorption material. The flame-retardant protective fabric has the advantages of high flame-retardant capacity, good chemical-proof effect, excellent puncture resistance and tensile resistance, can absorb moisture and sweat, and is comfortable to wear.

The invention relates to the technical field of fiber blending equipment, in particular to acrylic fiber blending equipment. The acrylic fiber blending equipment comprises a mounting assembly, a yarn outlet assembly, a yarn guide assembly, a humidifying and drawing assembly and a winding roller. The yarn guide assembly can be used for gradually gathering various fibers including acrylic fibers, uniform mixing of the various fibers is effectively achieved, the various fibers are pre-wetted and accurately wetted, it is ensured that the fibers keep proper humidity in the drawing process, static electricity and friction are reduced, the entanglement phenomenon is reduced, mixing uniformity is improved, and meanwhile, the yarn guide assembly is suitable for being used in the drawing process. A plurality of fibers before drawing can be effectively drawn, a certain tension can be kept, so that the phenomenon of uneven mixing caused by fiber entanglement is reduced, the inflow amount of humidifying airflow is dynamically adjusted according to the thickness and moisture requirements of the drawn fibers, it is ensured that the fibers are treated under the proper moisture degree, the situation that the performance of the fibers is affected by excessive moisture is avoided, and the quality of the drawn fibers is improved. And the binding force between different fibers is effectively improved.

The invention relates to the technical field of layered materials, and discloses an anti-pilling warm-keeping acrylic fabric and a preparation method thereof. The preparation method of the anti-pilling warm-keeping acrylic fabric comprises the following steps that acrylic fibers are pretreated through 1, 3-diamino-2-propyl alcohol, then silane modified phase change microcapsules are loaded, and modified acrylic fibers are obtained; blending the modified acrylic fibers and the cotton fibers into blended yarns, and knitting to obtain an inner-layer fabric and an outer-layer fabric; spinning and knitting the polyurethane heating and warm-keeping fibers to obtain a middle-layer fabric; fitting the inner-layer fabric, the middle-layer fabric and the outer-layer fabric to obtain a composite fabric; and dipping the composite fabric in the multifunctional finishing agent emulsion to obtain the anti-pilling warm-keeping acrylic fabric. The anti-pilling warm-keeping acrylic fabric disclosed by the invention has excellent washing resistance, anti-pilling performance, warm-keeping performance, moisture absorption performance and antistatic performance.

The invention relates to the technical field of dyes, and particularly discloses a pyrimidinyl acid ornamental blue reactive dye as well as a preparation method and application thereof. According to the invention, trichloropyrimidine is introduced into the ornamental blue structure as an active group, and the reactivity of the trichloropyrimidine is lower than that of an active group of a cyanuric chloride structure, so that the pyrimidine acid ornamental blue reactive dye is more stable and not easy to hydrolyze after being combined with cellulosic fibers, the acid-resistant and alkali-resistant stability of a dye-fiber covalent bond is better, and the dyeing performance is more excellent; in addition, water-soluble groups such as a sulfonic acid group and a carboxyl group are introduced, so that the water solubility of the pyrimidinic acid blue reactive dye is improved. Moreover, the pyrimidinyl acid ornamental blue reactive dye prepared by the invention has a good dyeing effect on chemical fibers such as acrylic fibers, spandex and the like and blend fiber fabrics thereof, the adaptability of ornamental blue is further improved, the dye is stable in dyeing, deep in coloring and good in color fixing effect, meanwhile, the acid and alkali resistance of the fabrics is improved, and the pyrimidinyl acid ornamental blue reactive dye has a wide application prospect.

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

The utility model discloses a woven headband containing wires, which comprises a main body assembly, and the main body assembly comprises a headband body, a woven belt connected to the outer surface of the headband body in a woven manner, and the wires woven in the headband body in a staggered manner; the woven belt comprises an outer protective layer, nylon fibers woven at the outermost end of the headband body, acrylic fibers woven on the inner sides of the nylon fibers, a fluorocarbon resin coating coated on the outer surfaces of the acrylic fibers, and polytetrafluoroethylene fibers woven on the inner sides of the acrylic fibers. The utility model solves the problems that the interior of the head band of the conventional head lamp in the market is not provided with an electric wire, the battery box needs to supply power to the head lamp through an external lead, so that the electric wire is exposed to influence the appearance, and the risk that the electric wire is stumbled or wound on other objects is increased; and the exposed electric wire is easily damaged by an object, a sharp object or a hard surface in an environment, so that the risk of electric wire breakage or electrical failure is increased.

The invention provides a moisture-absorbing and heating polar fleece fabric with high thermal insulation performance and a production process thereof, and relates to the technical field of garment fabrics. According to the moisture-absorbing and heat-emitting polar fleece fabric with the high heat preservation performance and the production technology of the moisture-absorbing and heat-emitting polar fleece fabric, blended yarn is composed of various functional fibers, and the functional fibers comprise, by weight, 25% of wool, 30% of self-heating acrylic fibers, 25% of lyocell fibers and 20% of nylon. According to the invention, the advantages of each fiber are fully played through the component design of the fixed-spinning yarn and the scientific proportion, the defect of a single fiber is overcome, secondly, the static control method effectively reduces the generation of static electricity through the synergistic effect of nylon and lyocell, and finally, the thermal insulation performance and the hand feeling of the fabric are remarkably improved through the application of the two-side napping polar fleece process.

The invention relates to the technical field of layered materials, and discloses a heat-storage and warm-keeping composite fabric and a preparation method thereof. The preparation method of the heat-storage and warm-keeping composite fabric comprises the following steps: preparing the modified acrylic fibers loaded with the modified phase-change microcapsules; the preparation method comprises the following steps: blending Cs0. 33WO3 nanoparticles and a PA6 / 66 copolymer, extruding, slicing, and carrying out melt spinning with the PA6 / 66 copolymer to obtain modified PA6 / 66 hollow fibers; preparing a polyurethane finishing liquid containing the modified nano carbon black and chitosan; preparing the modified acrylic fibers and the cotton fibers into an outer fabric; the modified PA6 / 66 hollow fiber is made into a middle layer fabric; fitting the inner-layer fabric, the middle-layer fabric and the outer-layer fabric to obtain a composite fabric; and finishing the composite fabric with a polyurethane finishing liquid to obtain the heat-storage and warm-keeping composite fabric. The heat-storage and warm-keeping composite fabric has excellent antistatic performance, heat-storage and warm-keeping performance, anti-pilling performance, moisture absorption and air permeability.

The utility model discloses an acrylic fiber fabric dyeing and melting device, and relates to the technical field of acrylic fiber fabrics. The device comprises a material melting barrel, a sealing top cover and a temperature treatment barrel, a first filter screen is clamped and fixed to the bottom in the material melting barrel, the sealing top cover is clamped and fixed to the top of the material melting barrel, a second filter screen is arranged at the bottom of the sealing top cover, a stirring motor is clamped and fixed to the top of the sealing top cover, and the temperature treatment barrel is clamped and fixed to the top of the sealing top cover. And a material passing barrel is clamped and fixed on the inner side of the temperature treatment barrel. By arranging the material dissolving barrel, the sealing top cover and the temperature processing barrel, the problems that in the material dissolving process of different dye raw materials, the operation mode and the requirement for water temperature are different, the device is difficult to control accurately, and in the stirring process of a solvent and the dye raw materials, due to the fact that the amount of the solvent is large, and the volume of the device is large, the device cannot be controlled accurately are solved. And the dye and the solvent are difficult to dissolve and mix uniformly.

The invention relates to the field of functional fabrics, in particular to an antistatic warm-keeping rabbit wool silk fabric. Which comprises a body, the body comprises a surface layer and a bottom layer connected with the surface layer, and is characterized in that the surface layer comprises 40-50% of regenerated cellulose fibers, 8-15% of spandex, 2-5% of rabbit wool and the balance acrylic fibers; the fiber content of the bottom layer is as follows: 22-30% of regenerated cellulose fiber, 3-5% of silk, 8-15% of spandex and the balance of acrylic fiber. The bottom layer containing silk and the surface layer containing rabbit wool are formed, so that the fabric has better antistatic property, heat preservation property and pilling resistance.

The invention relates to the field of sound insulation cotton, in particular to flame-retardant sound insulation cotton and a preparation method thereof. The flame-retardant sound insulation cotton is prepared from the following raw materials in parts by mass: 50 to 80 parts of polyether polyurethane, 10 to 20 parts of acrylic fiber, 1 to 5 parts of [3-(trimethoxysilyl) propyl] succinic anhydride, 5 to 15 parts of modified expanded vermiculite, 3 to 8 parts of binder, 2 to 5 parts of foaming agent, 0.5 to 3 parts of curing agent, 0.1 to 1 part of antioxidant and 0.1 to 0.5 part of initiator. According to the flame-retardant sound-insulation cotton, the sound insulation effect of the flame-retardant sound-insulation cotton is remarkably improved through multiple mechanisms of enhancing the damping performance of the material, improving reflection and scattering of sound waves, optimizing the porous structure, improving the mechanical property and stability, reducing the propagation speed of the sound waves and the like, and meanwhile the flame-retardant sound-insulation cotton has the excellent flame-retardant performance.

The invention discloses a fireproof blanket and a preparation method thereof, and relates to the technical field of fireproof materials. A fireproof blanket comprises a first flame-retardant fiber blanket layer and a second flame-retardant fiber blanket layer which are respectively adhered to two surfaces of a self-adhesive fireproof layer. Both the first flame-retardant fiber blanket layer and the second flame-retardant fiber blanket layer can be silica cloth, basalt fiber cloth, aramid fiber cloth, carbon fiber cloth, acrylic fiber cloth, pre-oxidized fiber cloth or silicon titanium cloth. The self-adhesive fireproof layer is prepared from the following components in parts by mass: 10-40 parts of a polymer matrix; 15-30 parts of a plasticizer; 3-20 parts of an intumescent filler; 15-30 parts of a flame-retardant filler; 15 to 40 parts of ceramic filler; and 2-10 parts of a reinforcing filler. The fiber blanket layer is made of high-temperature-resistant healthy cloth, and after the cloth is bonded to the two faces of the self-adhesive fireproof layer, the burnthrough resistance of the obtained fireproof blanket is further improved, the fireproof blanket can resist combustion of flames at the temperature of 1300-1500 DEG C and has good expansibility, and therefore the good heat insulation effect is achieved.

The invention relates to the technical field of building guniting materials, in particular to a processing method of a fiber polymer guniting material which comprises the following materials in parts by mass: 30-50 parts of cement, 30-40 parts of natural sand, 5-10 parts of fiber polymer, 3-7 parts of silica fume, 3-5 parts of copolymer emulsion, 1-2 parts of phosphate, 0.1-0.5 part of retarder, 0.02-0.06 part of tackifier and 0.03-0.1 part of water reducing agent. Wherein the fiber polymer comprises the following materials in parts by mass: 20-40 parts of polyester, 15-30 parts of nylon, 10-20 parts of acrylic fibers, 20-30 parts of glass fibers, 5-10 parts of carbon fibers and 1-2 parts of polyethylene glycol. According to the prepared fiber polymer guniting material, the toughness of the material is enhanced, the cracking and bursting phenomena of the guniting material are effectively prevented, and the structural stability and durability are improved; the adhesion with a construction interface is improved, and the delaminating problem is reduced; and a wet-type guniting process is adopted, so that dust generated in the construction process is reduced.

The invention relates to the field of fabrics, in particular to a warm-keeping breathable double-layer fabric. Comprising a surface layer and an inner layer, the surface layer and the inner layer are connected through a connecting line, the surface layer and the inner layer are both knitted fabrics, and the surface layer and the inner layer are both composed of 20-70% of acrylic fibers, 25-80% of viscose fibers, 0-25% of spandex, 0-25% of modal, 0-25% of polyester and 0-36% of natural fibers; the natural fiber is composed of one or more of mulberry silk, sheep wool, rabbit hair, cashmere, camel hair and cotton, the inner layer and the surface layer which are obtained through mixed spinning of the acrylic fibers and the viscose fibers have good air permeability, moisture penetrability, wear resistance and heat retention property, and the inner layer and the surface layer can be stably connected through the connecting lines. The formed double-layer fabric has better heat retention property, air permeability, moisture penetrability and wear resistance, and has the advantages of better heat retention property, air permeability and wear resistance when being used for producing clothes, and the wearing comfort and durability of the clothes are improved.

The utility model provides an aramid fiber washing device. The aramid fiber washing device comprises a washing tank, a petal roller, a porous roller and a godet, the petal roller comprises a roller center shaft and petal structural bodies arranged on the roller center shaft; the porous roller comprises an integrated circular roller structure, and a plurality of uniformly distributed circular holes are formed in a cylinder body of the circular roller; the roller central shaft and the shaft sleeve in the porous roller are mutually supported and connected; the petal roller and the porous roller are both immersed below the liquid level of the rinsing bath; the godet comprises an upper godet and a lower godet; the upper godet roller is arranged above the liquid level of the rinsing bath; and the lower godet roller is arranged below the liquid level of the rinsing bath. The aramid fiber washing device is good in cleaning effect on fiber tows, small in occupied area, low in operation cost and suitable for spinning and washing aramid fibers (including aramid fibers I, aramid fibers II and aramid fibers III), carbon fibers, acrylic fibers and other solutions.

The present invention relates to an acrylic fiber for artificial hair containing an acrylic copolymer. The dry-heat shrinkage ratio of the acrylic fiber after dry-heat treatment at 90 to 180° C. for 30 minutes is 30 to 70%, and the torsional rigidity thereof is 0.3 to 2.0 mg·cm2. Also, one or more embodiments of the present invention relate to a crimped acrylic fiber for artificial hair containing an acrylic copolymer. In the crimped acrylic fiber, the number of crimps is 10 or more crimps per 10 cm, and the crimp height is 1.5 mm or more. In addition, in ten continuous crimps, at least two crimps differ in crimp width and at least two crimps differ in crimp height, while the crimps are formed in two or more different crimp directions.