5578results about "Weft knitting" patented technology

The invention relates to the field of functional master batch materials, in particular to a phase-change energy temperature-adjusting fiber master batch and a fat-burning fabric thereof. The phase-change energy temperature-regulating fiber master batch is prepared from a composite phase-change material and polyethylene glycol terephthalate slices through melt extrusion and granulation, the fat-burning fabric is prepared from the phase-change energy temperature-adjusting fiber master batch and polyethylene glycol terephthalate slices through melt spinning, network compounding and weaving processing. By introducing the microencapsulated phase-change material and the high-thermal-conductivity filler, in the melt extrusion process, the microencapsulated phase-change material and the high-thermal-conductivity filler can be uniformly dispersed in the matrix material to form stable fiber master batches, form an efficient thermal-conductivity structure and provide excellent thermal regulation performance; meanwhile, microencapsulation can improve the stability and dispersity of the phase-change material, and the fat-burning fabric is prepared through melt spinning and weaving of fiber master batches, so that the heat-conducting property of the product is improved, and the continuous fat-burning effect is achieved.

A knitted upper for an article of footwear. The knitted upper is formed essentially as a single piece in a three-dimensional knitting process. The knitted upper includes at least one activated shrink yarn.

An inner glove configured such that a chemical warmer is attachable in a position facing the back of a hand. The inner glove is configured for wearing under an outer glove, wherein the inner glove includes a body portion that is seamless in a circumferential direction of the hand, the body portion includes an opening in which a wrist may be inserted, an opening in which a thumb may be inserted, and at least two openings in which fingers other than the thumb may be inserted.

Aspects herein are directed to a knit sock having a leg portion and an integrally knit ankle welt extending around a circumference of the leg portion and positioned at a lower end of the leg portion. The knit sock further includes an integrally knit tab located at a back aspect of the ankle welt.

The invention belongs to the technical field of flexible sensing, and discloses a flexible piezoresistive sensing array based on a triangular truss grid structure weft knitting spacer fabric, which is of a five-layer composite structure integrally woven and formed through a weft knitting process. The first packaging layer, the first electrode layer, the spacer fabric spacer layer, the second electrode layer and the second packaging layer are sequentially arranged from top to bottom; the first packaging layer and the second packaging layer are formed by weaving insulating yarns and are respectively an upper surface layer and a lower surface layer of the spacer fabric; the spacer fabric spacer layer is of a three-dimensional elastic supporting structure and comprises a plurality of first spacer layer transverse rows and a plurality of second spacer layer transverse rows which are formed by alternately weaving the upper face layer and the lower face layer of the spacer fabric through tucking. The first spacing layer transverse rows and the second spacing layer transverse rows are arranged in the spacing fabric in a staggered mode and are sequentially connected end to end to form a transverse row crossing cross-linked type triangular truss grid structure. The flexible piezoresistive sensing array provided by the invention has high structural integrity and long-term stability.

The invention provides a high-strength, light and supercritical foaming fabric and a preparation method thereof, complete fibers used by the fabric comprise core layer fibers and a skin layer material, the outer side of the core layer fibers is uniformly coated with the skin layer material, and the skin layer material can be foamed; the core layer fiber is at least one of aramid fiber, polyarylate fiber, polyimide fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and polyamide fiber; and the skin layer is made of thermoplastic elastomer resin. The preparation method comprises the following steps: uniformly coating the outer side of the core layer fiber with the skin layer material, and then carrying out supercritical foaming on the skin layer material. According to the invention, the contradictory technical requirements of the fabric for shoes on strength, light weight, comfort and the like are solved in a simple mode; the body strength of the fiber for the shoes can be kept, and the characteristics of light weight and air permeability of the foaming fabric are also achieved; the difficulty of direct foaming of the fabric / fiber for shoes is reduced, and the vamp fabric and the shoe article which are uniform in foaming, breathable, light in weight, high in strength and soft can be obtained.

The invention provides a staggered plaiting fabric and an assembly for a single-sided circular weft knitting machine, the staggered plaiting fabric comprises two yarns, the coil composition structure of the staggered plaiting fabric is in a staggered state, the veil forming each coil comes from the previous knitting road, and the plaiting comes from the current knitting road; the extension lines between the coils are in a crossed state, and the two yarns are respectively and alternately represented as surface yarns and plaiting yarns in the transverse direction. The assembly for the single-face circular weft knitting machine is used for producing staggered plaiting fabric and comprises a knitting needle, a sinker, a knitting needle triangular runway and a sinker triangular runway. The knitting needle comprises a needle rod, a needle hook, a needle latch and a needle butt; the needle hook is arranged at the upper end of the needle rod; the needle latch is arranged at the upper part of the needle rod, rotationally connected with the needle rod and used for closing or opening the needle hook; the butt is embedded into the knitting needle triangular runway; the sinker comprises an upper piece forehead, a lower piece forehead and a piece heel; the lower piece forehead is used as a first bent yarn holding surface; the upper piece forehead is used as a second bent yarn holding surface; and the heel is embedded into the sinker triangular runway.

The invention discloses a flexible airtight material with high interlayer bonding strength as well as a preparation method and application of the flexible airtight material. The flexible airtight material provided by the invention is formed by compounding a fabric reinforcement and an airtight film, the fabric reinforcement is obtained by weaving yarns and thermofuses. According to the flexible airtight material, the bonding strength between the inner layer and the outer layer is high, the material has good flexibility, stretchability, tearability, airtightness and safety, the preparation method of the material is simple in process and convenient to operate, and the time cost, the labor cost and the raw material cost for preparing an existing flexible airtight material are greatly reduced.

A knit fabric includes a back layer including a first back yarn, the first back yarn having a minimum moisture regain of at least 6.0 weight percent. The first back yarn is plated with a back elastic yarn. The knit fabric also includes a face layer including a first face yarn having a maximum moisture regain of less than 5.5 weight percent. The first face yarn is plated with a face elastic yarn. The knit fabric further includes a connecting elastic yarn forming yarn connections between the face layer and the back layer binding together the layers. A denier of the face elastic yarn may be greater than a denier of the back elastic yarn and the connecting elastic yarn. One or both of the back layer or the face layer may comprise a full-feeder knit construction.

The invention relates to the technical field of multi-layer composite fabrics, and discloses a moisture-absorption antibacterial layered composite fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out melt spinning on polyamide and an antibacterial agent to prepare the antibacterial polyamide fiber; blending antibacterial polyamide fibers, cotton fibers and special-shaped section polyamide fibers, and knitting to obtain a lining fabric crude product; blending the antibacterial polyamide fiber and the modified cotton fiber, and knitting to obtain a surface fabric crude product; respectively padding the surface fabric crude product and the lining fabric crude product in the finishing liquid to obtain a surface fabric and a lining fabric, and compounding the surface fabric and the lining fabric to obtain the moisture-absorbing antibacterial layered composite fabric. The composite fabric has excellent antibacterial performance and good moisture absorption performance.

The present application belongs to the technical field of flexible sensing, and discloses a flexible piezoresistive sensing array based on a triangular truss grid structure weft-knitted spacer fabric, which is a five-layer composite structure integrally formed through a weft-knitting process, and sequentially comprises a first encapsulation layer, a first electrode layer, a spacer fabric spacing layer, a second electrode layer and a second encapsulation layer from top to bottom; the first encapsulation layer and the second encapsulation layer are knitted from insulating yarns and serve as upper and lower layers of the spacer fabric respectively; the spacer fabric spacing layer is a three-dimensional elastic support structure, and comprises a plurality of first spacer layer courses and a plurality of second spacer layer courses alternately knitted through tuck stitches on the upper and lower layers of the spacer fabric; the first spacer layer courses and the second spacer layer courses are staggered with each other in the spacer fabric and are sequentially connected at the head and tail to form a triangular truss grid structure in a cross-course crosslinking mode. The flexible piezoresistive sensing array of the present application has high structural integrity and long-term stability.

The invention provides a polyvinylidene fluoride-based nanofiber yarn wave-absorbing fabric as well as a preparation method and application thereof, and belongs to the technical field of preparation of wave-absorbing composite materials. The preparation method comprises the following steps: preparing nanofiber yarns or nanofiber core-spun yarns by adopting a conjugate electrostatic spinning technology, directly adding a conductive substance into a spinning solution to form conductive nanofibers, and further coating the nanofiber yarns or the nanofiber core-spun yarns with a PDA shell layer to improve the wear resistance and reduce silver nanoparticles in situ; finally, the yarns are woven into fabric through a weaving or knitting technology, and the fabric is applied to the fields of buildings, electromagnetic protective clothing, flexible electronics and the like. Compared with an existing microwave absorbing material, the fabric-based material is light in weight and good in mechanical flexibility and processability. Fabrics formed of nanofiber yarns or nanofiber core spun yarns facilitate the induction of interfacial polarization and multiple reflections, and can deeply design material properties. The material provided by the invention has better wear resistance, wearability and microwave absorption performance, and is suitable for actual production and application.

The invention belongs to the technical field of personal protection equipment, and particularly relates to a lightweight cut-resistant four-dimensional structure fabric based on high-performance composite fibers and a preparation method of the lightweight cut-resistant four-dimensional structure fabric. The structure is based on a high-performance composite fiber material and a nano silicon carbide embedding technology of high-performance polyethylene fibers, the hardness bottleneck of a single material is broken through, and multi-fiber compatibility is improved through cooperation of polyurethane fiber surface activation and polyurethane fiber anti-melting modification. The gradient twist core sheath yarn is a high-performance composite yarn, and the strength and the flexibility are balanced. In the aspect of the oversleeve fabric structure, a three-dimensional protection system comprising a honeycomb structure, a silica gel liner and a skin-friendly inner layer is adopted, so that the integration of multiple functions of hydrophobicity, fusion resistance and buffering of a light-weight cut-resistant material is realized. Under the EN 388 standard, 5-level cutting prevention can be achieved, a single high-performance polyethylene fiber cutting prevention oversleeve can only reach 3-4 levels, the weight of the composite fiber material is reduced by 40% compared with that of a full aramid fiber oversleeve, the thickness is reduced by 25%, and the composite fiber material can be suitable for complex scenes such as petroleum and electric power.

A method for generating a knitted article having a first, second and third opening, the knitted article adapted to cover at least a groin, a first thigh portion and a second thigh portion of a human body. The method includes using flatbed knitting machine to knit a first portion of the knitted article for covering the first thigh portion, then to knit a second portion of the knitted article for covering the groin and then to knit a third portion of the knitted article for covering the second thigh portion. The first, second and third portions of the knitted article form a one-piece, non-planar knitted article. A pair of edges of the knitted article are affixed to form a first seam, and another pair of edges are affixed to form a second seam facing away from the first seam.

The present invention discloses a needle plate and knitting needle combination structure for a horizontal knitting machine, wherein two kinds of inserts arranged in parallel on the needle plate form adjacent needle grooves, the two inserts are provided with dovetail grooves for installing combing pieces and plug strips, tooth mouth pieces and tooth mouth piece gaskets are arranged in parallel at the front end of the first insert, and spacing gaskets and auxiliary gaskets are arranged at the front end of the second insert groove, and knitting needles and mirror image knitting needles are arranged at intervals. The needle plate combination of the present invention is specially provided with combing pieces and pressure strips to further improve the uniformity of the needle grooves, and the structural parts make the knitting needles and mirror image knitting needles run more stably, the structural insert parts are low in cost, the knitting needles or mirror image knitting needles are ejected from the tooth mouth piece slightly offset from the middle area, the knitting needles or mirror image knitting needles squeeze the sinker offset structure, and maximize the maximum thickness of the needle head participating in knitting, thereby improving the knitting effect, and because the knitting needles or mirror image knitting needles have their own independent connecting stitches during operation, the control is stable and the production efficiency is high.

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 invention discloses a process for preparing a polyester fiber fabric by regenerating polyester waste bottle flakes, belongs to the technical field of polyester fiber fabric processing, and aims to solve the technical problem that the moisture absorption and quick drying performance, friction resistance and pilling resistance of the polyester fiber fabric in the prior art need to be further improved. The method comprises the following steps: adding polyester waste bottle flakes into a pulverizer, pulverizing, sieving with a 60-mesh sieve to obtain polyester regenerated powder, and pretreating the polyester regenerated powder to obtain pretreated polyester powder; composite polyester is prepared from modified polysiloxane enhanced copolyester containing nylon 6 and polyvinyl alcohol blocks, and then the porous composite polyester fiber is prepared by taking polyvinyl alcohol as a pore forming agent, so that the moisture absorption and quick drying performance of the polyester fiber fabric is effectively improved, the wearing experience of the polyester fiber fabric is enhanced, and the service life of the polyester fiber fabric is prolonged. The wear-resistant and anti-pilling performance of the polyester fiber fabric is also improved.

The invention belongs to the technical field of carbon material fibers, and discloses a preparation method of a carbon nanofiber reinforced carbon material fiber fabric, which comprises the following steps: fixing a weakly twisted carbon material fiber tow on an electrostatic spinning nano yarn machine; forming a carbon nanofiber membrane by utilizing electrostatic spinning, uniformly wrapping the carbon nanofiber membrane on a carbon material fiber bundle subjected to weak twisting, then rolling into a shaft, then weaving the rolled fibers into a fabric, and sequentially performing hot pressing and carbonization treatment on the fabric to prepare a carbon nanofiber reinforced carbon material fiber fabric; the weak twisting means that the twisting degree is 5-13 twists per meter. According to the invention, the carbon nanofiber is coated on the carbon material fiber, so that the interface bonding strength between the nanofiber and the carbon material fiber is improved, and then the fabric prepared from the carbon nanofiber is subjected to hot pressing and carbonization treatment, so that the mechanical property, the electrical conductivity and the heat-conducting property of the fabric are further improved; therefore, the composite material has a huge application prospect in the fields of high-performance composite materials, intelligent textiles and the like.

The invention belongs to the technical field of electric heating materials, and discloses a flexible electric heating weft knitting spacer fabric and a preparation method thereof.The product comprises a first planar knitted fabric layer, a second planar knitted fabric layer and a spacer layer, the first planar knitted fabric layer and the second planar knitted fabric layer are insulating layers, and the spacer layer is a conductive heating layer; the conductive heating layer comprises a first conductive electrode, a second conductive electrode and a plurality of heating areas which are not directly and electrically connected with one another and are all tuck stitches; the first conductive electrode, the second conductive electrode and the heating area are all woven by conductive yarns, and the resistance ratio of the conductive yarns used for weaving the first conductive electrode and the second conductive electrode to the conductive yarns used for weaving the heating area is not greater than 1 / 25000; the preparation method comprises the following steps of: weaving three kinds of yarns by using a flat knitting machine provided with two needle beds. The heating uniformity, the safety, the reliability and the durability of the product are greatly improved; the preparation method is simple.

The utility model relates to the field of flat knitting machines, in particular to a needle bed structure of a flat knitting machine, which comprises a needle plate and insertion sheets, wide insertion slots and narrow insertion slots are arranged on the needle plate, the wide insertion slots and the narrow insertion slots are arranged at intervals, the wide insertion slots and the narrow insertion slots are sequentially and uniformly distributed on the needle plate, the wide insertion sheets are arranged in the wide insertion slots, and the narrow insertion sheets are arranged in the narrow insertion slots. The space between the wide insertion piece and the narrow insertion piece is used for arranging a knitting needle, and the top end of the wide insertion groove corresponding to the wide insertion piece is further provided with a sinker and a tooth opening piece. After the scheme is adopted, the required knitting function is met, and meanwhile, the burden of the needle bed is reduced.

The present invention addresses the problem of providing a knitted fabric capable of suppressing as much as possible moisture that has moved to a first side from returning to a second side opposite the first side. This knitted fabric includes a first region in which a front yarn AT is disposed on the first side and a back yarn BT is disposed on the second side opposite the first side. The back yarn has a lower water absorption than the front yarn, and has hydrophobicity or water repellency. The first region of the knitted fabric is preferably composed of a plaiting knitted structure formed from the front yarn and the back yarn.

The purpose of the present invention is to provide a knitted fabric configured so that after absorbing moisture, the knitted fabric can cause the absorbed moisture to evaporate as quickly as possible. This knitted fabric comprises a high-absorption region AA and a low-absorption region BA. The low-absorption region is adjacent to the high-absorption region and has lower absorption properties than those of the high-absorption region. It is preferable that the high-absorption region is knit from a first yarn AT having high absorption properties, and it is preferable that the low-absorption region is knit from a second yarn BT having lower absorption properties than the first yarn.

A textile fabric is provided, including: a main body, a film layer and a covering layer. The main body includes two surfaces opposite to each other, and each of the two surfaces has a surface texture being concave and convex. The film layer is coveringly disposed on one of the two surfaces and is concave and convex corresponding to the surface texture, and the covering layer is coveringly disposed on the other of the two surfaces. Therefore, the film layer has an appearance corresponding to the surface texture, and the textile fabric has good toughness, is waterproof and is not easily damaged, and the covering layer provides comfortable feeling of touching.

The invention relates to the technical field of knitted fabrics, in particular to a high-strength wear-resistant anti-snagging functional dry knitted fabric for exercise training and a production process thereof, and the production process comprises the following steps: weighing the following raw materials in parts by weight: 30-40 parts of polyester fibers, 20-30 parts of aramid fibers, 5-10 parts of jade fibers and 5-10 parts of polyamide fibers; polyester fibers, aramid fibers, jade fibers and polyamide fibers are subjected to relaxation treatment and then subjected to a drawing procedure, and the mixed roving is obtained. According to the knitted fabric for exercise training, polyester fibers, aramid fibers, jade fibers and polyamide fibers are blended and blended to prepare mixed roving, meanwhile, the mixed roving is infiltrated and improved through infiltrating liquid, finally, the mixed roving is matched with modified polyester filaments to be subjected to circular knitting improvement, and the obtained knitted fabric has the advantages of being excellent in wear resistance, mechanical strength performance and snagging performance, good in elasticity and good in elasticity. And the knitted fabric has remarkable moisture absorption, dryness and dryness and washing resistance, and the comprehensive coordination of the product is excellent.

A clothing article is disclosed herein, comprising: at least one base knit region, each base knit region being formed of a base knit comprising an ultra-high molecular weight polyethylene (UHMWPE) fiber and at least one base stretch fiber being knit together in a plated configuration to form a jersey knit; and at least one reinforcing knit region, each reinforcing knit region being formed of a reinforcing knit comprising the UHMWPE fiber and the at least one base stretch fiber being knit together in a plated configuration to form a jersey knit. The reinforcing knit region further comprising a reinforcing stretch fiber being alternatingly knit with the jersey knit of the reinforcing knit in which within each given course of the jersey knit of the reinforcing knit, for every sequence of m +n consecutive loops of the course, the reinforcing stretch fiber is looped with m consecutive loops of the jersey knit of the reinforcing knit and n consecutive loops of the jersey knit of the reinforcing knit are free of looping with the reinforcing stretch fiber.

The utility model relates to the field of flat knitting machines, in particular to a three-system knitting device of a flat knitting machine, which comprises a triangular bottom plate, a left triangular system, a middle triangular system and a right triangular system are arranged on the triangular bottom plate, each triangular system corresponds to two needle selectors, and each of the left triangular system and the right triangular system comprises a loop transfer triangular mechanism and a knitting triangular mechanism. The middle triangular system is not provided with a loop transfer triangular mechanism but only provided with a knitting triangular mechanism; the middle knitting triangle mechanism comprises an upper middle triangle and a lower middle triangle, the two sides of the upper middle triangle are respectively provided with a density triangle, and the two sides of the lower middle triangle are provided with needle raising triangles. By optimizing the structure of the three-system knitting device, the knitting efficiency is improved.

Aspects herein are directed to textile that includes a first layer formed from a first plurality of yarns or fibers. The first layer includes a first set of apertures, each aperture having a first opening size. The textile further includes a second layer formed from a second plurality of yarns or fibers. The second layer includes a second set of apertures. Each aperture in the second set of apertures is axially aligned with a corresponding aperture in the first set of apertures. Each aperture in the second set of apertures has a second opening size that is smaller than the first opening size of apertures in the first set of apertures. The first layer is relatively more hydrophilic than the second layer.

The invention relates to the technical field of fabrics, in particular to a moisture absorption and sweat releasing fabric and a preparation process thereof.The preparation process includes the following steps that raw materials including, by weight, 35-40 parts of modified polyester silk, 20-25 parts of functional yarn and 8-12 parts of polyester fiber are weighed; a preparation method of the modified polyester yarn comprises the following steps: melting, blending and extruding polyester resin and a modifier according to a weight ratio of 100: 5; weaving the modified polyester yarns, the functional yarns and the polyester fibers into a knitted fabric body by using a circular knitting machine; setting the knitted fabric body at a high temperature of 115 DEG C for 50 seconds, and obtaining the moisture-absorbing and sweat-releasing fabric after setting is finished. According to the moisture absorption and sweat releasing fabric, the modified polyester yarn, the functional yarn and the polyester fiber are woven into the knitted fabric through the circular knitting machine, the modified polyester yarn is improved and optimized by matching polyester resin with the modifier, and the moisture absorption and sweat releasing performance, the elasticity and the wear resistance of the polyester yarn are enhanced through mutual matching and mutual assistance of the raw materials.

The utility model provides a combined type computerized flat knitting machine sinker, belongs to the technical field of machinery, and solves the problem of poor use effect of the existing sinker. The combined type computerized flat knitting machine sinker comprises a body which is installed at the front end of a needle plate of a computerized flat knitting machine, the body is composed of a main piece and an auxiliary piece which are attached to each other, and the corresponding sides of the main piece and the auxiliary piece are bent, extend and define a needle threading channel; the knitting needles are arranged on the needle plate, the bodies are installed between every two adjacent knitting needles, and each knitting needle can penetrate through the needle penetrating channel in the corresponding body when knitting fabric; the rotating shaft is arranged at the bottom of the main piece in a penetrating mode, the main piece drives the auxiliary piece to rotate around the rotating shaft to a designated position, and when the coils on the fabric move to the designated position along with the knitting needle, the main piece and the auxiliary piece are buckled on the two sides of the corresponding coils. The utility model has the characteristic of good use effect.