1094 results about "Warp knitting" patented technology

The invention relates to the field of warp knitting machines, in particular to a warp knitting machine weft selecting and laying device which comprises a weft selecting unit, a weft laying unit and yarn conveying and clamping units, the yarn conveying and clamping units are symmetrically arranged on one side of the weft laying unit, the weft selecting unit is horizontally arranged above the yarn conveying and clamping units on the two sides, and the weft selecting unit comprises a mounting frame. A plurality of line selection frames arranged in the weft selection unit and traction mechanisms on the line selection frames are matched with a line clamping plate limiting mechanism and a line clamping plate mechanism, rapid and accurate selection and switching of multiple yarns are achieved, the weft selection efficiency and accuracy are improved, a trolley assembly in the weft laying unit is in linkage design through a line pressing frame, a line pressing plate and a line clamping mechanism, and the weft laying efficiency is improved. According to the yarn conveying and clamping unit, reliable pressing and clamping of the yarn are achieved, yarn displacement in the weft laying process is avoided, the yarn conveying and clamping unit is matched with an adjustable clamping piece in a chain transmission mode, continuous and stable conveying of the yarn is achieved, and accurate control over the clamping state is achieved through an adjusting assembly and a driving assembly.

The invention provides a warp-knitted interval sensing fabric and a preparation method and application thereof, a pressure sensor, a pressure sensing foot pad and a plantar pressure value acquisition system, and belongs to the technical field of flexible sensors. The warp-knitted interval sensing fabric comprises an electrode layer, a monofilament interval layer and a sensing layer which are sequentially laminated; the warp-knitted interval sensing fabric is of an integrally formed structure; the electrode layer is provided with a full-penetrating double-comb structure and comprises a plurality of conductive strips which are arranged in parallel, and an insulating strip is arranged between every two adjacent conductive strips; the monofilament spacing layer is formed by mutually connecting fiber coils, and the electrode layer and the sensing layer are connected through the fiber coils; the sensing layer has a full-penetration double-comb weave and is obtained by weaving sensing yarns. According to the warp-knitted spacer sensing fabric pressure sensor, the electrode layer, the monofilament spacer layer and the sensing layer are integrally formed, the process is simple, the cost is low, and large-scale production and practical application are facilitated.

The invention relates to the technical field of soft cotton fabrics, in particular to a high-breathability soft cotton fabric and a preparation method thereof.The preparation method includes the following steps that firstly, spandex filaments serve as core yarns, the core yarns are wrapped with modified polyester yarns to be spun into spandex wrap yarns, the ratio of the spandex filaments to the modified polyester yarns is 2: 2.5, and the linear density of the spandex filaments is 20 D; and the linear density of the modified polyester yarns is 50D. According to the soft cotton fabric, the spandex filaments serve as the core wires, the spandex filaments are subjected to coating improvement through the modified polyester yarn, the 100D / 144F imitated cotton yarn is matched for warp and weft knitting, the obtained soft cotton fabric is improved in the air permeability, softness and elasticity in a coordinated and balanced mode, and the product is excellent in heat resistance, washing resistance and stability.

The utility model discloses a single-layer screen cloth with a multi-layer structure, which belongs to the technical field of textile and comprises a screen cloth body integrally woven by a three-jacquard warp knitting machine, the screen cloth body comprises a first layer, a second layer and a third layer from top to bottom, and the first layer, the second layer and the third layer are all woven by superfine yarns. And the first layer, the second layer and the third layer are mutually overlapped and interwoven to form a single-layer screen cloth effect.

The oiling tool for the guide bar of the warp knitting machine comprises a connecting part and an oiling part, the connecting part and the oiling part are integrally formed, the connecting part is connected with the output end of a grease gun, an oiling channel communicated with the output end of the grease gun is arranged in the oiling part, and the oiling channel is communicated with the output end of the grease gun in the axial direction of the oiling part. A plurality of oil injection hole groups for injecting oil into the linear bearing penetrate through the oil injection part, the plurality of oil injection hole groups are formed by arranging a plurality of oil injection holes which are linearly arranged, and the oil injection holes are communicated with the oil injection channel. By means of the structure, when oil needs to be injected into the linear bearing, the oil injection part is inserted into the linear bearing, grease is injected into the oil injection channel through the grease gun, the grease is injected into the linear bearing through the oil injection holes along the oil injection channel, and therefore the grease can be prevented from being polluted by two hands, and the grease can be injected into the linear bearing through the oil injection holes under the matching of the arrangement mode of the multiple oil injection holes. Oil can be conveniently filled, the problems of oil leakage and non-uniform oil filling are avoided, and the use amount of butter can be saved.

The invention discloses special cloth for a single-sided terry bath foaming towel and a weaving method of the special cloth. The terry cloth comprises a three-layer structure integrally woven by a warp knitting machine, wherein the three-layer structure comprises a base layer and 100D / 36F polyester filament yarn warp knitting chain weave; the binding layer is a 100D / 96F polyester filament chain stitch and penetrates through the substrate layer; the looped pile layer is of a vertical looped pile structure formed by 300D / 10F polyester filaments, the height of looped piles is 7-8 mm, and the density of the looped piles is 25-30 / cm; the thickness ratio of the base layer to the binding layer to the looped pile layer of the three-layer structure is 0.6: 1: 7. The three kinds of yarns with different thicknesses are combined to form a three-layer structure, the three-layer structure is directly formed through warp knitting, a traditional fuzzing roller is not needed for fuzzing, the upright performance of a looped pile is guaranteed, it is guaranteed that the looped pile does not generate monofilament breakage and is stable in structure, and the foaming performance and the weaving feasibility are balanced.

The invention relates to the field of warp knitting machines, in particular to a weft selecting trolley with a yarn tension adjusting function, which comprises a weft selecting trolley unit and can monitor the tension state of yarns in real time by arranging a capacitive proximity switch: when the yarns are loose, the capacitive proximity switch does not send out a signal, a system automatically triggers a tension adjusting mechanism, and the tension state of the yarns is adjusted; the assembly mounting plate is pulled through the driving mechanism to ensure that the yarn is always in a tensioned state, the yarn loosening phenomenon in the weft laying process is effectively avoided, the tensioning of the yarn can be automatically adjusted, all the yarn clamping units can be controlled through the adjusting unit to clamp the yarn, and the yarn laying efficiency is improved. Synchronous work of yarn clamping of the clamping assemblies and the capacitive proximity switch is achieved through the adjusting piece, single adjustment of the single assembly mounting plate in the yarn clamping state can be achieved through cooperation of the adjusting piece and the guide frame, the synchronous adjusting plate drives the clamping assemblies on the two sides to synchronously move through the limiting sliding grooves, and it is guaranteed that clamping force is evenly distributed; yarn deviation or distortion is avoided, and weft laying quality is improved.

The utility model relates to the field of warp knitting machines, in particular to an automatic gear opening adjusting device which comprises a rack, a first swing shaft, a second swing shaft, a first knocking-over support, a second knocking-over support, a first knocking-over plate, a second knocking-over plate, a controller, a first servo motor, a second servo motor, a first eccentric adjusting mechanism and a second eccentric adjusting mechanism. The first knocking-over support and the second knocking-over support are directly controlled by the servo motor to independently swing, so that the opening of the knocking-over plates is adjusted, the two knocking-over plates can be synchronously adjusted, a certain knocking-over plate can also be singly adjusted, different scene requirements can be met, the adjusting mode is flexible, diversified and convenient, and the working efficiency is improved. And the displacement of the knocking-over bar can be accurately adjusted through electric control and adjustment of the servo motor.

The utility model discloses opposite-pull circular hole jacquard warp knitting mesh cloth, which belongs to the technical field of textile, and comprises a mesh cloth body integrally knitted by a jacquard warp knitting machine, the mesh cloth body comprises a surface layer, a bottom layer and a middle layer, the surface layer of the mesh cloth body is provided with a plurality of regular circular lifting holes, and the regular circular lifting holes are formed by opposite-pull knitting of jacquard guide bars in the opposite direction.

The invention relates to a TPU coating pneumatic membrane material and a preparation method thereof, belongs to the technical field of square cabins, and solves the problem of poor puncture resistance of a square cabin pneumatic membrane material in the prior art. The fabric comprises an outer layer, an inner layer and a middle layer, the middle layer is a three-dimensional warp knitting fabric layer, the outer layer is a TPU and aramid chopped fiber composite layer, and the inner layer is a TPU mask layer. On the other hand, the invention provides a preparation method of the TPU coating pneumatic membrane material, and the preparation method comprises the following steps: step 1, weaving and forming the three-dimensional warp knitting fabric; step 2, TPU surface modification and interface strengthening; and 3, spraying the inner layer and the outer layer to form a coating. The anti-puncture performance of the pneumatic membrane can be improved, and the anti-puncture performance is improved from 800 N to 1400 N or above.

The invention discloses a glass fiber reinforced plastic wiredrawing plate and a processing method thereof, the glass fiber reinforced plastic wiredrawing plate comprises a glass fiber reinforced plastic plate matrix, the glass fiber reinforced plastic plate matrix comprises a fiber reinforced matrix layer and a gel coat layer on at least one surface of the fiber reinforced matrix layer; at least one surface of the glass fiber reinforced plastic plate substrate is provided with a wire drawing structure; the fiber-reinforced matrix layer is formed by infiltrating fibers in matrix layer resin, and the fibers in the fiber-reinforced matrix layer are fiber chopped yarns; and any one or combination of fiber continuous yarns, fiber surface felts, fiber felts, fiber stitch-bonded felts, fiber composite felts, fiber cloth, fiber multi-axis cloth, fiber warp-knitted cloth, fiber composite cloth and fiber woven products. By arranging the wire drawing structure, the surface roughness is improved so as to enhance the bonding force, and the pollution and bonding problems caused by mechanical polishing are avoided; the processing method simplifies the process, reduces the cost, does not need complex corona treatment, provides a good contact surface for bonding of the glass fiber reinforced plastic plate and other materials, and guarantees the bonding effect.

The utility model relates to the technical field of yarn adjustment, in particular to a warp knitting machine yarn tension self-adaptive adjusting mechanism which comprises a main machine body, the main machine body can be installed on a warp knitting machine and used for adjusting yarn tension, and a tension adjusting system capable of adjusting the yarn tension is arranged in the center of the main machine body. The tension adjusting system comprises a plurality of tension fine adjustment assemblies capable of finely adjusting yarn and an adjusting assembly used for driving the tension fine adjustment assemblies to rotate, and further comprises a rotating assembly arranged on the main machine body and used for driving the tension fine adjustment assemblies and the adjusting assembly to move. The rotating assembly comprises two rotating plates rotationally arranged on the main machine body. Through the synergistic effect of the tension fine adjustment assembly, the adjusting assembly and the rotating assembly, the yarn tension adjusting device can adjust the tension of yarn in a self-adaptive mode, and is simple in adjusting structure and rapid in adjustment.

The utility model discloses a concave-convex warp knitting screen cloth with local transparent convex areas, which belongs to the technical field of textile, and comprises a screen cloth body integrally knitted by a single jacquard warp knitting machine, the screen cloth body comprises a surface layer, a bottom layer and a middle layer, and the surface layer is provided with at least one transparent convex area.

The invention discloses a jacquard vamp material based on bio-based degradable polylactic acid (PLA) and a preparation method thereof, and relates to the technical field of shoe materials. The jacquard vamp material is of a three-layer jacquard structure formed by integrally weaving PLA composite filaments through a jacquard warp knitting machine. The PLA composite filament is prepared from the following raw materials in parts by weight: 80-95 parts of polylactic acid (PLA) slices, 5-15 parts of poly (butylene adipate / terephthalate) (PBAT), 3-8 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.5-2 parts of an anti-hydrolysis agent and 0.5-1.5 parts of a lubricant. According to the invention, the bio-based PLA is used as a main raw material and is matched with degradable auxiliaries such as PBAT, so that the whole vamp material can be completely biodegraded under a composting condition, the problem of environmental pollution of a traditional vamp is fundamentally solved, and meanwhile, through blending modification of PBAT and the flexibilizer, the flexibility and impact resistance of the PLA material are remarkably improved, and the vamp material has good application prospects. The requirements of the vamp material on softness, wear resistance and durability can be met.

The present invention relates to a warp knitted mesh cutting process and cutting equipment for automobile seats, and relates to the field of laser cutting technology. The process comprises a frame, a laser cutting system, a residual material conveying system and a finished fabric conveying system. The finished fabric conveying system comprises a finished fabric grabbing and moving machine, a grabbing and lifting device, a grabbing device, a dust collecting device, a negative pressure feeding pipe and a rotating device. The dust collecting device is installed on the finished fabric grabbing and moving machine, the negative pressure feeding pipe is connected to the dust collecting device, the grabbing and lifting device is installed on the finished fabric grabbing and moving machine, the rotating device is installed at the output end of the grabbing and lifting device, the grabbing device is installed at the bottom of the rotating device, the grabbing device is slidably installed in the dust collecting device, the grabbing device is lifted and lowered along the dust collecting device under the traction of the grabbing and lifting device, the rotating device drives the grabbing device to rotate, the dust collecting device is in the shape of a trumpet with a downward opening, and a vibration device is installed on the dust collecting device to eliminate black ash generated during the cutting process and prevent pollution.

The utility model discloses a self-adhesive edged warp-knitted spacer fabric, which relates to the technical field of textiles and comprises a central bonding area and two edge bonding areas which are distributed along a first direction, and the central bonding area is positioned between the two edge bonding areas. Each edge bonding area comprises a plurality of empty penetrating and shaping needle feeding areas and a plurality of edge full penetrating and self-bonding anti-slip areas, and the empty penetrating and shaping needle feeding areas and the edge full penetrating and self-bonding anti-slip areas are distributed in a staggered mode in the first direction; a one-threading and one-empty threading mode is adopted in the central bonding area; the side bonding area adopts a threading mode that X penetrates through Y to be gradually changed into Y penetrates through X, X and Y both represent the number of knitting needles, and 6-10 threading cycles are performed. The problems of concave-convex edges of finished fabric and loss caused by thinning and inclination of the edges of the fabric in the shaping process are solved, resources are saved, and the cost is reduced.

The invention discloses a three-dimensional realistic real-time simulation method suitable for jacquard warp-knitted fabric, and belongs to the technical field of computer graphics. Comprising the following steps: analyzing an execution signal file of an industrial jacquard knitting machine and translating the execution signal file into yarn laying numerical codes; modeling a single three-dimensional coil model on the basis of a Catmull-Rom spline curve; calculating the arrangement and tension simulation of each coil of the whole cloth according to the yarn laying numerical code; gPU hardware is used for accelerating generation of fiber-level details; simulating a shadow shielding phenomenon in the cloth; and performing physics-based rendering on the fiber-grade model on the basis of the bidirectional curve scattering distribution function. The problems that a traditional three-dimensional simulation method is long in consumed time and low in speed when large jacquard cloth is subjected to three-dimensional simulation are solved, and the problems that the trueness is low and the credibility is low when three-dimensional knitted cloth is subjected to simulation rendering are solved.

The utility model discloses a jacquard fabric with free thick and thin surfaces and a jacquard vamp, and relates to the technical field of jacquard fabrics. The jacquard fabric with the free thick and thin faces comprises a fabric body woven through a jacquard guide needle on jacquard equipment, the fabric body at least comprises a surface layer and a bottom layer, the surface layer is connected with the bottom layer, one face of the fabric body is provided with a rough area, and the other face of the fabric body is provided with a fine area. The jacquard fabric can be combined to achieve free rough and fine effects, and compared with warp knitting fabric, the jacquard fabric can be endowed with more combined structure styles.

The utility model relates to a warp knitting multi-jacquard TPU wrap yarn vamp which comprises a vamp body, the vamp body is formed by weaving at least one TPU wrap yarn, the vamp body comprises a visual wrapping area, a jacquard area and a pattern comb area, and the jacquard area comprises a jacquard base layer and a TPU wrap yarn jacquard layer; the jacquard base layer is formed by weaving at least two ground comb guide bars, and yarn threading of the ground comb guide bars on a machine table is carried out in a one-threading and one-empty mode; the TPU wrap yarn jacquard layer is formed by weaving at least two ground comb guide bars, yarn threading of the ground comb guide bars on a machine table is carried out in a one-threading and three-empty or two-threading and two-empty mode, and the TPU wrap yarn jacquard layer is formed by weaving TPU wrap yarn. The TPU wrap yarn is used as the vamp material, so that the problems of wear resistance and the like which are easy to occur when a single face is rough in texture are effectively solved, and the texture of the vamp is improved.

A piezoelectric jacquard device for a warp knitting machine comprises a novel base, a novel bimorph, a plug assembly, a shield assembly, a cable bundle assembly, a pouring sealant, a grounding screw, a novel guide needle assembly, a stainless steel front blocking tooth assembly, a rotating shaft, a rotating shaft cover plate, a cover plate fixing screw and a front blocking tooth fixing screw. Wherein the novel yarn guide needle assembly comprises a plastic clamping sleeve and a novel yarn guide needle, and the stainless steel front blocking tooth assembly comprises stainless steel upper blocking teeth and stainless steel lower blocking teeth. One end of the novel bimorph is limited and fixed in a rear blocking tooth of the novel base, and the other end of the novel bimorph is limited in a bimorph swing limiting groove in the novel yarn guide needle assembly to form flexible hinge connection; the novel yarn guide needle assembly is matched and positioned with the rotating shaft through a rotating shaft positioning hole in the novel yarn guide needle assembly; a novel yarn guide needle of the novel yarn guide needle assembly is limited up and down and left and right in a yarn guide needle limiting groove in the stainless steel front blocking tooth assembly.

The invention discloses a warp knitting vertical pile fabric and a production process thereof.The warp knitting vertical pile fabric comprises a vertical pile fabric body, an upper-layer plush material is integrally formed on the surface of the upper end of the vertical pile fabric body, a lower-layer plush material is integrally formed on the surface of the lower end of the vertical pile fabric body, and a multifunctional composite fabric is integrally formed in the vertical pile fabric body; the upright pile fabric main body comprises regenerated yarns, hollow silk fabric, super-soft densified upright pile grey cloth, polyester silk and natural fiber fabric, the natural fiber fabric is positioned on the surface of the super-soft densified upright pile grey cloth, and the hollow silk fabric is positioned on the surface of the natural fiber fabric. According to the warp-knitted upright pile fabric and the production process thereof, a pretreatment ironing and reducing process and a re-setting process are reduced through a dyeing process, a leveling agent, glacial acetic acid, a degreaser, a capillary effect improver, an anti-wrinkle agent and a color fixing agent are added, the acid-base value of warp-knitted upright piles and the oily value of cloth are adjusted and optimized, the dyeing effect is enhanced through the leveling agent, and the fabric has the advantages that the fabric is not prone to falling off; the standard is reached.

The invention discloses a double-needle bar warp knitting machine broken yarn detection device based on machine vision, which comprises cross beams arranged on the front side and the rear side of a guide bar of a double-needle bar warp knitting machine, a sliding table guide rail is arranged on the cross beams, one end of a guide rail body of the sliding table guide rail is connected with a driving motor, an image acquisition module is fixed on a sliding table, and the double-needle bar warp knitting machine broken yarn detection device further comprises a position sensor, the position sensor is triggered when all the yarns are clearly presented in the knitting areas of the front needle bar and the rear needle bar, the image acquisition module is connected with a computer through a wire, the position sensor, the driving motor and the computer are jointly connected with a controller through wires, and the controller is further connected with a control box of the double-needle-bar warp knitting machine through a wire. The problem that in the prior art, a detection component is complex in structure and difficult to install on the two-needle bar warp knitting machine is solved, and real-time detection of broken yarn can be achieved. The invention further discloses a broken yarn detection method of the double-needle bar warp knitting machine based on machine vision.

The invention relates to the technical field of microfiber flannelette, in particular to flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette and a preparation method thereof.The flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette comprises figured island superfine fiber non-woven fabric, reinforcing layers are arranged on the upper surface and the lower surface of the figured island superfine fiber non-woven fabric through polyurethane glue in an adhesive mode, and resin body layers are arranged on the outer surfaces of the reinforcing layers; the reinforcing layer is formed by warp knitting linen fiber yarns and aramid fiber yarns according to the weight ratio of 1: 1; the thickness of the figured island superfine fiber non-woven fabric is 0.4 to 0.5 mm; the thickness of the reinforcing layer ranges from 0.3 mm to 0.4 mm. And the thickness of the resin body layer is 0.2 to 0.3 mm. According to the flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette disclosed by the invention, the resin body layer, the reinforcing layer and the figured island superfine fiber non-woven fabric are symmetrically arranged up and down, so that the strength stability of the microfiber flannelette is optimized.

The utility model relates to the technical field of warp knitting machines, in particular to a pattern bar steel wire transverse moving mechanism of a two-needle bar warp knitting machine, which comprises a guide bar spindle, a connecting piece, a swing arm component, an air cylinder component, a guide bar component and a servo component, the guide bar spindle is rotatably connected with a warp knitting machine frame, and the swing arm component is fixedly connected with the warp knitting machine frame. The output end of the swing arm assembly is in transmission connection with the guide bar main shaft, the swing arm assembly is used for providing power for rotation of the guide bar main shaft, the air cylinder assembly, the guide bar assembly and the servo assembly are sequentially arranged on the guide bar main shaft from left to right, and a connecting piece sequentially passes through the air cylinder assembly, the guide bar assembly and the servo assembly. The air cylinder assembly, the guide bar assembly and the servo assembly are all arranged on the guide bar main shaft, so that the air cylinder assembly and the servo assembly at the two ends synchronously swing in the process that a pattern comb steel wire transversely moves and swings, it is guaranteed that the pattern comb steel wire, a steel belt and a steel wire rope are always located on the same straight line in the working process, and the transverse moving precision of each time of transverse moving of the pattern comb steel wire is improved.

The invention relates to the technical field of warp knitting machines, in particular to a yarn tension control system of a warp knitting machine, which comprises an adjusting mechanism, the adjusting mechanism comprises a motor, the output end of the motor is rotatably connected with a first gear, the end face of the first gear is rotatably engaged with a second gear, and the surfaces of the first gear and the second gear are provided with first connecting rods; second connecting rods are rotatably connected to the surfaces of the first connecting rods, third connecting rods are rotatably connected to the surfaces of the second connecting rods, grooves are formed in the side walls of the mounting seats, springs are arranged on the bottom surfaces of the grooves, sliding seats are arranged at the top ends of the springs, and first yarn guide rollers are rotatably mounted on the side walls of the sliding seats. According to the yarn guide roller, the contact area is increased, the pressure on the area is reduced, abrasion and deformation of the yarn caused by too large local pressure are effectively reduced, after the contact area is increased, friction force between the yarn and the first yarn guide roller is distributed more evenly, and the problem of hairiness yarn breakage caused by too large local friction is avoided.

The invention discloses a production method of a cool-feeling antibacterial PA66 chinlon filament, and belongs to the technical field of chemical fiber manufacturing. According to the method, PA66 slices are used as raw materials and matched with jade cool-feeling master batches and a septol antibacterial oil agent (the effective component is OPHB), and the PA66 polyamide filament with the cool-feeling antibacterial effect is prepared through the process steps of slice and master batch mixing, melt spinning, side blowing cooling, oiling, drafting and winding and the like. The cool-feeling antibacterial PA66 chinlon filament produced by the invention not only has excellent physical properties (the fineness is 40-50 dtex, the breaking strength is greater than or equal to 3.5 cN / dtex, and the elongation at break is 36-46%), but also has long-acting antibacterial property (the antibacterial rate to escherichia coli and staphylococcus aureus is greater than or equal to 99%, and the antibacterial rate after 50 times of washing is still greater than or equal to 98%) and stable cool feeling (the cool feeling value Q-max is greater than or equal to 0.2 W / (m.K)), and is safe, non-toxic, environment-friendly, simple in process and low in cost. The method is suitable for the field of close-fitting textiles such as warp knitting, weft knitting and hosiery knitting, and the industrial applicability is high.

The present invention relates to the technical field of plush fabrics and their preparation, and particularly relates to a warp-knitted integrated plush fabric and a preparation method thereof. The plush fabric includes a first plush layer, a second plush layer, and a connecting layer located between the first plush layer and the second plush layer. The first plush layer includes a front comb extension line layer, which is formed by processing the extension lines of the front comb. The connecting layer sequentially includes a middle comb extension line layer, a back comb extension line layer, a middle comb coil layer, and a front comb coil layer from the first plush layer to the second plush layer. Each layer is formed by the common interlacing of the extension lines of the middle comb, the extension lines of the back comb, the coils of the middle comb, and the coils of the front comb in sequence. The second plush layer includes a back comb coil layer, a back comb extension line layer, or a combined layer of both. The preparation method includes yarn warping, machine knitting, and dyeing and finishing. The present invention can form various variable structures, and at the same time, the respective types and colors of the plush on the front and back can be independently selected and freely combined according to the design and requirements, forming many style effects.

The invention provides an antibacterial and uvioresistant blend fiber fabric and a preparation method thereof, and belongs to the technical field of fabrics. The preparation method comprises the following steps: intercalating an antibacterial and anti-ultraviolet compound into MgZnFe layered metal oxide, self-assembling and coating microspheres with the compound, dipping nickel salt, calcining in-situ deposited carbon nanotubes, carrying out surface polydopamine modification to obtain modified carbon nanotube deposited microspheres, adhering the modified carbon nanotube deposited microspheres to hydrolyzed cotton fibers, uniformly mixing the hydrolyzed cotton fibers with Cel fibers and bamboo charcoal fibers, and carrying out vacuum drying to obtain the antibacterial and anti-ultraviolet fabric. The preparation method comprises the following steps: processing the raw materials into blended yarns through combing and ring spinning processes, weaving the raw materials into grey cloth by adopting double-sided warp knitting weaves, and carrying out cloth boiling, mercerizing, dyeing, sizing, preshrinking, singeing and wool etching processes to obtain the antibacterial and uvioresistant blended fiber fabric. Cellulase is adopted to hydrolyze cotton fibers, the problem that spinning is prone to breaking is solved, the cotton fibers are blended with the lyocell fibers and the bamboo charcoal fibers, the comfort level of the fabric is improved, the draping sense and the cool sense are good, the fabric cover is smooth and clean, the antibacterial, anti-ultraviolet and anti-static performance and the mechanical strength are good, and wide application prospects are achieved.

The invention relates to the technical field of fabric production, in particular to a warp knitting machine double-drive tension control winding method and system.The method comprises the steps that woven fabric sequentially passes through a traction roller, a transition roller, a tension roller, a first friction roller and a second friction roller and is wound by a winding mechanism; the first friction roller and the second friction roller are driven respectively and are synchronized with the virtual main shaft through an electronic gear; the tension roller is used for detecting the tension on the fabric; calculating tension deviation according to the tension signal of the tension roller and preset target tension, and generating control output by adopting a PID (Proportion Integration Differentiation) control algorithm; and calculating a real-time adjusting quantity according to the control output, and superposing the real-time adjusting quantity to the synchronous rotating speeds of the first friction roller, the second friction roller and the virtual main shaft. The tension fluctuation can be effectively restrained, it is guaranteed that the fabric is stably stressed in the whole rolling process, and the compactness consistency and flatness of a cloth roll are improved. The winding rotating speed and tension parameters can be set and adjusted on line through programs, and mechanical gears do not need to be replaced.

The invention discloses an anti-ultraviolet portable high-elastic sunscreen clothing fabric and a preparation method thereof. The fabric is sequentially compounded with a skin-friendly layer, a high-elastic breathable layer, an anti-ultraviolet functional layer and a protective outer layer from inside to outside. The skin-friendly layer is formed by blending natural bamboo fibers and chitosan-containing regenerated cellulose antibacterial fibers according to the ratio of 7: 3, and it is ensured that the skin is comfortable and antibacterial; the high-elastic breathable layer is of a warp-knitted elastic mesh structure formed by blending 15-20 wt% of spandex and chinlon, and has both elasticity and breathability. According to the anti-ultraviolet function layer, 80-100 g / m < 2 > polyester fiber base cloth is coated with a coating containing nanometer titanium dioxide and zinc oxide (the total mass accounts for 8-12% of the polyurethane coating, and the mass ratio is 2: 1), and efficient and lasting sun protection is achieved. The protective outer layer is formed by compounding a polytetrafluoroethylene microporous membrane and a polyester fabric, so that the protective performance is improved. During preparation, each layer is precisely processed by adopting a specific process, such as ultrasonic dispersion of nanoparticles and hot-pressing compounding of a hot melt adhesive, and is finally laminated, compounded and molded. According to the scheme, the problems that a traditional sunscreen garment fabric is poor in breathability, not lasting in sunscreen, poor in skin-friendly performance and the like are solved.