2784results about "Warp knitting" patented technology

The invention discloses a continuous polyester fiber textile cloth that can be torn into pieces, processing equipment and a processing method. By ultrasonic hot-melting technology, the polyester fiber textile cloth is subjected to the high temperature generated by the high frequency generated by the action of a metal knife mold and an ultrasonic welding head, so that the thread of the loop layers and the base layer are melted in a line to form a thin line melting body that can be torn apart. The knife mold and the ultrasonic welding head are close to each other and resonate to generate heat. When they leave each other, the resonance disappears and the heat decreases, so as to realize the formation and temperature control of a linear high temperature zone.

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 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.

The utility model discloses a multifunctional warp-knitted ice-feeling heat-shielding sunscreen fabric which comprises first yarn and second yarn, the first yarn is full-dull special-shaped section chinlon filaments with the specification of FDY45Dtex / 48F, and the second yarn is high-temperature-resistant spandex filaments with the specification of 40dTEX. The first yarns and the second yarns are separately perforated for weaving, so that the first yarns cover the second yarns, namely, the first yarns are exposed on the inner side, and as the first yarns adopt the chinlon filaments with cool feeling, when the fabric body is in contact with the skin of a human body, the first yarns are in contact with the skin of the human body; the first yarns with larger areas are in contact with the skin of a human body, so that a better cool feeling is kept; moreover, the first yarns and the second yarns are thin, so that the fabric body is thin, and the air permeability is good; moreover, due to the fact that the first yarn and the second yarn are woven in a high-density mode, the density of the fabric body is high, ultraviolet rays are not prone to penetrating through the fabric body, and the sunscreen effect is achieved.

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 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 present invention relates to a shoe upper, in particular an upper knitted on a circular knitting machine, including an elongated hollow knit structure, including: a first zone including a first predetermined property; a second zone including a second predetermined property; wherein the elongated hollow knit structure includes less than ten distinct ply types of yarn including less than five distinct materials.

The invention discloses a damping mechanism and a warp knitting machine and process based on the damping mechanism, and relates to the field of damping mechanisms, the damping mechanism comprises a damping hydraulic cylinder and a damping hydraulic rod, the damping hydraulic rod is inserted in the damping hydraulic cylinder, a damping cylinder is fixedly installed on the damping hydraulic cylinder, and a flow limiting hole is formed between the damping cylinder and the damping hydraulic cylinder; an adjusting plate is connected to the damping hydraulic cylinder through a screw cylinder, a damping plate is fixedly installed on the top of the damping hydraulic rod, a damping spring is arranged between the damping plate and the adjusting plate, and the damping hydraulic cylinder and the damping hydraulic rod are sleeved with the damping spring. The base is rapidly leveled, the damping mechanisms and the warp knitting machine body are prevented from inclining, the stress of the damping mechanisms is consistent, the damping effect on the warp knitting machine body is better, the inclination degree of the base is more conveniently known, and the situation that the base is inclined due to misoperation of the leveling unit is prevented; the length of the supporting unit is prevented from being changed under the condition that the leveling unit vibrates, the flatness of the base is guaranteed, and the running stability of the warp knitting machine body is improved.

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.

A plant fiber deep pile fabric is disclosed that closely resembles animal fur or wool manufactured via a method that includes extracting the plant fibers from the plant material and forming a yarn or sliver made from plant fibers and simultaneously attaching it to a scrim also made from plant fibers, where the fiber is attached and extends from the scrim to form a length of plant-fiber pile fabric having natural plant fibers on one side and the scrim on the opposite side. The method includes finishing the scrim side of the fabric with an adhesive agent to attach the fibers to the scrim and form a stable base. The method also includes finishing the plant fiber pile side of the fabric by applying fur-industry specific processing steps to alter the properties of the fibers resulting in an even closer resemblance of animal fur.

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.

Layered materials for using in implants, such as hernia repair implants. The layered materials may include a first layer including a substrate (e.g., mesh) and a second layer including a sheet of anti-adhesive material. The layers may be attached at small attachment sites that are separated by regions in which the layers are not attached, to provide a highly compliant implant. The compliance of the implant may match that of a patient's body upon implantation and / or over time following implantation.

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 discloses a preparation method of a completely biodegradable dustproof net based on modified bamboo powder, and belongs to the technical field of biodegradable new materials. The formula comprises the following components in parts by weight: 50-70 parts of poly (butylene adipate-co-terephthalate), 10-40 parts of bamboo powder, 0.1-2 parts of a silane coupling agent, 0.1-1 part of a surfactant, 0.1-1 part of an anti-blocking agent, 0.1-1 part of an antioxidant and 0.1-1 part of an ultraviolet light absorber. The dust screen prepared by the invention not only has biodegradability, but also has the characteristics of being green and environment-friendly by adopting the bio-based material bamboo powder. Meanwhile, in order to realize good combination of the bamboo powder and matrix plastic poly (butylene adipate-co-terephthalate), a silane coupling agent capable of combining the bamboo powder and the matrix plastic poly (butylene adipate-co-terephthalate) through a chemical reaction and a surfactant capable of combining the bamboo powder and the matrix plastic poly (butylene adipate-co-terephthalate) through a physical effect are sequentially adopted for composite modification of the bamboo powder; the dispersity of the bamboo powder and the compatibility of the bamboo powder and poly (butylene adipate-co-terephthalate) are effectively improved, and the prepared dustproof net has good mechanical properties.

The present invention relates to carbon fiber production equipment, in particular to a double-disc carbon fiber warp knitting machine, comprising a base assembly, a double-disc assembly and a driving assembly, the double-disc assembly comprising a rotating frame with two ends arranged on a first mounting plate and a second mounting plate, the rotating frame is provided with a first air expansion shaft and a second air expansion shaft in parallel, the first air expansion shaft is sleeved with a first disc head, and the second air expansion shaft is provided with a second disc head, when working, the first driving member drives the first air expansion shaft to rotate, driving the first disc head to rotate, when the material on the unwinding drum on the first disc head is used up, when changing the material, the third driving member drives the rotating frame to rotate to a suitable angle, the second driving member drives the second air expansion shaft to rotate, driving the second disc head to rotate, the unwinding drum of the second disc head quickly enters the working state, the double disc heads perform fast material change, the material change switching time is short, can meet the fast replacement of the unwinding disc head, reduce the waiting stagnation time for production material change, and improve production efficiency.

The piezoelectric blocking piece structure of the three-station piezoelectric jacquard comprises a main body part, a piezoelectric bending brake and a stitch length adjusting part, and the utility model further relates to the three-station piezoelectric jacquard with the piezoelectric blocking piece structure. According to the three-station piezoelectric jacquard, when the piezoelectric separation blade structure is used for driving a corresponding yarn guide needle in the three-station piezoelectric jacquard to be switched to a middle station, one part of the needle pitch adjusting part abuts against at least one part of the yarn guide needle, and the other part of the needle pitch adjusting part is arranged between the main body part and the yarn guide needle. Therefore, the needle pitch of the yarn guide needle is kept, and the needle pitch is kept accurate and does not deviate when the yarn guide needle is located at the middle station.

According to the elastic fabric provided by the invention, the TPU fiber is used as an elastic fiber material of the elastic fabric, the TPU fiber is processed into the elastic yarn, and the woven fabric with excellent elasticity and good hand feeling is obtained through the structural design of the elastic yarn and the fabric in combination with a corresponding processing textile dyeing and finishing process. According to the elastic fabric and the preparation method thereof, the elastic fabric has excellent elasticity, the warp-direction elastic elongation of a woven fabric can reach 35-70%, the weft-direction elastic elongation of the woven fabric can reach 80-130%, the warp-direction elastic elongation of a knitted fabric can exceed 180-250%, and the weft-direction elastic elongation of the knitted fabric can reach 250-360%; the fabric is low in elasticity modulus and low in elastic recovery rate, and clothes made of the fabric are weak in constraint feeling when worn; a special wrinkle style can be obtained on the surface of the fabric, and the fabric has excellent hand feeling; the invention further provides a method for stably processing and preparing the elastic knitted fabric.

A flexible support sleeve includes a knit fabric sheet with loops of fibers on a fastening face, a strip of resin overlaying a portion of the fastening face along one edge, with a strip of adhesive disposed along the same edge on an opposite side. The strip of resin includes male touch fastener elements configured to engage the loops of the knit fabric sheet. The strip of resin has a selvedge coterminous with the edge of the flexible support sleeve and void of male touch fastener elements, such that the selvedge of the base is not engageable with the loops of the knit fabric sheet. The strip of adhesive is wider than the strip of resin, such that the adhesive strip underlays all of the discrete male touch fastener elements of the strip of resin.

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 utility model discloses integrally-woven warp-knitted heel sheet mesh cloth, which belongs to the technical field of textile, and comprises a mesh cloth body integrally woven by a jacquard warp knitting machine, the mesh cloth body comprises a surface layer, a bottom layer and a connecting layer, and at least one area middle layer of the mesh cloth body expands a vertical space between the surface layer and the bottom layer to form a heel sheet area; and the surface layer and the bottom layer are tightly connected by the middle layer in other areas to form plain areas.

The invention relates to the technical field of knitted fabrics, in particular to an efficient moisture absorption and sweat releasing knitted fabric and a preparation method thereof.The preparation method comprises the following steps that raw materials are weighed by weight, 15-25 parts of cotton fibers, 30-40 parts of modal fibers and 30-35 parts of Coolmax fibers are weighed, blended yarn is woven in a 30-inch 30-needle mode, and woven fabric is obtained. According to the knitted fabric, cotton fibers and modal fibers are matched with Coolmax fibers to be subjected to high-temperature blank fixing and blending treatment, then finishing modification liquid ultrasonic high-pressure immersion treatment is matched, and the raw materials are blended, optimized and improved, so that the moisture absorption and sweat releasing properties, the antistatic property and the pollution resistance of the prepared knitted fabric achieve performance balance coordination; meanwhile, the product has remarkable weather-proof and washing-resistant stability effects.

The weaving method of the high-strength three-dimensional composite geogrid comprises the steps of primary processing of the grid net, secondary processing of the grid net and winding of a finished product, the geogrid processed through the weaving method is of a double-layer structure, the double-layer grid net can be stored by a winding unit in an attached mode, and the double-layer grid net can be stored by the winding unit in an attached mode. Reeds of the adjusting parts can be inserted into meshes of the grating nets during storage, winding of the finished geogrid is not affected by arrangement of the adjusting parts, when the geogrid is used, only one-time laying is needed, the lower-layer grating net is fixed, and the upper-layer grating net is lifted to enable the upper connecting parts to be elastically clamped into clamping grooves in the outer sides of the two reeds, so that the geogrid is convenient to use. The supporting work of the double-layer grid net can be completed through the adjusting piece, so that the laying work of the geogrid can be simpler and quicker, and the soil fixation and slope protection effects of the geogrid are guaranteed.

The invention relates to a functional fiber, in particular to a graphene multifunctional fiber which is prepared by blending a fiber main body material and a graphene functional master batch, the weight ratio of the fiber main body material is 80%-98%, and the weight ratio of the graphene functional master batch is 2%-20%; the graphene functional master batch comprises the following components in parts by weight: 70-90 parts of a matrix material, 1-15 parts of graphene powder, 1-15 parts of a light-absorbing and heat-insulating material, 5-15 parts of an antibacterial material, 3-15 parts of an antistatic material, 0.1-2 parts of an auxiliary agent and 0.1-10 parts of an anti-mite material. The preparation method of the graphene multifunctional fiber comprises the steps of preparing graphene multifunctional master batch and melt spinning, and the graphene multifunctional fiber can be used for preparing flocculus or plush fabric. The function of the graphene multifunctional fiber does not decline along with use and washing, and the graphene multifunctional fiber has permanent functional characteristics and can be used for short fiber filling, spinning or filament weaving.

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 conductive fiber manufacturing, and discloses a light-color conductive fiber production process which comprises the following steps: mixing: mixing a matrix polymer, a conductive matrix polymer, a nano filler and a metal oxide in proportion; performing melt blending: performing melt blending on the mixture through a double-screw extruder to form conductive master batches; performing composite melt spinning: mixing the conductive master batch and a matrix polymer according to a mass ratio of 1: 4-1: 6, and performing melt spinning to form a fiber with a skin-core structure; and stretching and shaping: stretching and heat-shaping the obtained fibers, wherein the multifilament density is 50-200D. Through a composite conductive system of the conductive matrix polymer, the nanofiller and the metal oxide, the construction of a multi-dimensional synergistic conductive path is realized. Compared with a traditional technical scheme of constructing a conductive network depending on a single filler, the defects that the conductive network is easy to break and the conductivity is unstable are overcome, and the conductivity of the fiber under a dynamic condition is ensured.

The invention relates to a finishing and dyeing method for a one-way moisture-conducting knitted fabric. The finishing and dyeing method comprises the following procedures of presetting, pretreatment, aftertreatment, first setting and second setting. Different from the prior art, the finishing method of the one-way moisture-conducting knitted fabric provided by the technical scheme adopts twice setting procedures; in the first setting procedure, the setting temperature is controlled to be 150-160 DEG C, so that tetrafluoroethylene on the surfaces of the load effect yarns forms fluff similar to lotus leaf needle shapes, and the bottom layer water resistance is achieved; in the second setting process, the absorption and discharge functions of the moisture-absorption and sweat-discharge yarns are enhanced by adding a moisture-absorption and quick-drying auxiliary agent, and meanwhile, the water resistance of the bottom layer is not influenced.

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.