349 results about "Elastic fiber" patented technology

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.

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.

The invention relates to an all-cotton four-way stretch fabric and a preparation method thereof, and belongs to the technical field of textile dyeing and finishing. The preparation method comprises the following steps: performing singeing, enzyme desizing, liquid ammonia finishing, loose alkali shrinkage and overfeeding soft heat setting on gray fabric to obtain the all-cotton four-way stretch fabric. The warp-wise and weft-wise shrinkage rates of the prepared four-way stretch fabric are-3.0%-0%, the warp-wise elastic elongation rate is 12%-15%, the weft-wise elastic elongation rate is 12%-18%, and the elastic residual elongation rate is smaller than or equal to 8%; obvious warp and weft elasticity can be achieved without elastic fibers, the problems that elastic fabrics such as spandex core-spun yarn fabrics are complex to manufacture, unstable in fabric size and the like are solved, the warp and weft elasticity is obvious, the size stability is good, the hand feeling is soft, and the price is low; the preparation method is simple, does not need equipment transformation, is easy to operate and does not damage fiber strength.

The invention relates to a flame-retardant antibacterial water-repellent elastic fabric and a preparation method thereof. Yarns adopted by the fabric comprise spandex fiber yarns, combed cotton yarns and spandex elastic fiber yarns. A double-sided circular knitting machine is adopted to weave grey cloth, and the obtained grey cloth is at least subjected to water-repellent finishing to obtain the fabric, the combed cotton yarn is used for being woven into the outer layer of the gray fabric, the spandex fiber yarn is used for being woven into the inner layer of the gray fabric, and the spandex elastic fiber yarn is used for being woven into the middle connecting layer of the gray fabric. The spandex fiber yarn, the combed cotton yarn and the spandex elastic fiber yarn are woven to form a unique organization structure, so that the fabric has the advantages of the three materials; the gray fabric obtained by weaving is subjected to water-repellent finishing, so that the lasting flame-retardant antibacterial and water-repellent functional fabric is obtained, and the fabric can be used for light sports or casual coats.

The invention relates to the field of textile materials, and discloses a multi-thread elastic knitted fabric and a preparation method thereof.The multi-thread elastic knitted fabric is prepared from, by weight, 30 parts of ternary polymerization elastic fibers; 70 parts of modified bamboo fiber; the ternary copolymerized elastic fiber is prepared from the following raw material components in parts by weight: 28-32 parts of polylactic acid; 38 to 42 parts of polytrimethylene terephthalate; 28 to 32 parts of poly (butylene succinate); 1 to 3 parts of graphene nanosheets; 0.5 to 1.5 parts of epoxidized soybean oil; 2 to 4 parts of beta-cyclodextrin; the modified bamboo fibers are subjected to enzymatic treatment, silane coupling agent modification, dopamine coating treatment and ultrasonic treatment. Through micro gradient structure design and multi-step functionalization treatment of the ternary polymerization elastic fibers and the modified bamboo fibers, unification of excellent elastic recovery, comfort, multifunctionality and durability is achieved.

Provided are: polyurethane elastic fibers that achieve heat resistance, adhesiveness, and reelability and that are suitable for a gather member; a winding body therefor; a gather member; and a sanitary material. The present invention relates to: polyurethane elastic fibers that are multifilaments and that contain urethane bonds and urea bonds, the polyurethane elastic fibers being characterized in that the ratio of the urea bonds with respect to the urethane bonds is 0.05 to 5%; a winding body of said polyurethane elastic fibers, wherein the elongation rate of the polyurethane elastic fibers on the winding body is 0.05 to 10%; a gather member; and a sanitary material.

The invention relates to the technical field of rail transit cables, in particular to a preparation method of a bending-resistant sensor cable for a high-speed motor train unit. The preparation method comprises the steps of conductor three-layer twisting and annealing, insulating layer gradient extrusion and plasma treatment, filling, twice wrapping, double-layer shielding, double-layer sheath co-extrusion and irradiation crosslinking post-treatment. The structure of the bending-resistant sensor cable sequentially comprises a high-elasticity fiber rope filler, a copper alloy conductor with a TPEE insulating layer, a thin flame-retardant cloth wrapping layer, an elastic silica gel inner shielding layer, a tinned copper wire and fiber filament outer shielding layer, a thin non-woven fabric wrapping layer and a cross-linked polyurethane double-layer sheath from inside to outside. The bending resistance of the cable exceeds 500,000 times, the cable works stably at the temperature of-50 DEG C to 125 DEG C, the service life is prolonged by 2-3 times, and the cable is suitable for the harsh environment of the high-speed motor train unit.

The invention relates to the technical field of oil and gas exploitation fracturing, in particular to a coil type multi-dimensional controllable temporary plugging ball and a preparation method and application thereof.The coil type multi-dimensional controllable temporary plugging ball is prepared from 10-60 parts of degradable fibers, 10-80 parts of elastic fibers, 5-10 parts of an adhesive, 1-3 parts of a degradation agent and 1-30 parts of a density regulator; blending the degradable fibers and the elastic fibers in proportion to form elastic wire harnesses; an elastic wire harness is wound, an adhesive, a degradation agent and a density regulator are continuously wrapped in the winding process, and finally a wire ball type sphere or ellipsoid is formed through winding, namely the temporary plugging ball is formed. The special-shaped hole temporary plugging agent has the beneficial effects that the special-shaped hole is easily subjected to secondary molding plugging and self-adaptive plugging, the temporary plugging effect is good, and plugging removal can be achieved after rapid dissolution.

An elastic fabric and a manufacturing method therefor. TPU fibers are used as elastic fiber materials, the TPU fibers are processed into elastic yarns, and by means of structural designs of the elastic yarns and a textile, and in cooperating with textile dyeing and finishing processes for corresponding processing, the fabric having excellent elasticity and good hand feel is obtained. The warp-direction elastic elongation of a woven fabric can reach 35-70%, and the weft-direction elastic elongation thereof can reach 80-130%; the warp-direction elastic elongation of a knitted fabric can reach 180-250%, and the weft-direction elastic elongation thereof can reach 250-360%; the textile has low elastic modulus and low elastic recovery rate, and garments made from this textile deliver minimal wearing constriction; the surface of the textile can achieve a special crepe style and has excellent hand feel.

The invention discloses elastic fiber reinforced hydrophobic eutectic composite gel as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The method for preparing the elastic fiber reinforced hydrophobic eutecticevaporate composite gel comprises the following steps: (1) carrying out heat treatment on an elastic fiber membrane at 100-150 DEG C for 20-200 minutes, soaking the elastic fiber membrane in an ethanol solution of benzophenone, taking out the elastic fiber membrane, and drying the elastic fiber membrane to obtain the treated elastic fiber membrane; (2) uniformly mixing a polymeric monomer, a cross-linking agent, a photoinitiator and a hydrophobic eutectic solvent to obtain a hydrophobic eutectic composite gel precursor solution; and (3) putting the treated elastic fiber membrane into the precursor solution of the hydrophobic eutectic composite gel, defoaming, and carrying out photo-initiation polymerization to obtain the elastic fiber reinforced hydrophobic eutectic composite gel. According to the prepared composite gel, the mechanical strength and fatigue resistance are effectively improved through the elastic fibers, and the composite gel has good adhesiveness.

The invention provides a high-strength and high-ductility damage self-repairing cement-based composite material based on spiral memory alloy fibers and a preparation method of the high-strength and high-ductility damage self-repairing cement-based composite material, and belongs to the technical field of underwater engineering concrete structures. According to the invention, the matrix mix proportion of the cement-based composite material and the hybrid reinforcement effect of the three fibers on the matrix are redesigned, so that the tensile strain capacity is also remarkably improved while the strength of the UHPSC is improved, and the deformation ductility and the cumulative energy dissipation capacity of the cement-based composite material are further remarkably enhanced; as the spiral superelastic SMA fibers have self-resetting capacity, restoring force can be provided for the unloaded cement-based composite material, tensile cracks of the cement-based composite material are promoted to be automatically closed or the width of residual cracks of the cement-based composite material is obviously reduced, and on the basis, the self-healing capacity of an incompletely hydrated cementing material in the cement-based composite material is matched, so that the self-healing performance of the cement-based composite material is improved. And the UHPSC material can present a good damage self-repairing effect.

The present application relates to the field of cosmetic technology, in particular to a composition for improving skin firmness, a cosmetic and a preparation method thereof.The composition for improving skin firmness comprises the following components by weight: 0.1-10 parts of golden microalgae, 0.1-20 parts of rice fermentation liquor and 0.01-3 parts of inositol; wherein the fermentation strain of the rice fermentation liquor is yeast.The composition for improving skin firmness is mild and non-irritating, has strong permeability, can be used in cosmetics, enhances the generation of skin collagen and elastic fibers, and effectively improves skin firmness and elasticity.

Interlock knit textiles and methods of forming and using interlock knit textiles are described. Three structural properties have been found to contribute to improved stretch properties in interlock knits. The three structural properties include the use of a unique knitted loop shape, the use of fine filament yarns, and the use of elasticated yarns having lower hysteresis than conventional elastane. The described interlock knit textiles can include one, two or all three of these structural properties. The improved stretch properties can include values for percent elongation or modulus in the length direction which are close to or the same as their values in the width direction.

The utility model relates to the field of mesh cloth provides a high colour fastness jacking mesh cloth, solves the defect that the colour fastness of jacking mesh cloth of prior art is not high, including mesh cloth body, the mesh cloth body is by surface layer, connecting layer and bottom layer constitutes, the surface layer has jacquard weave, the surface layer is woven by wear -resisting fibre yarn and chinlon fibre yarn according to 2: 1 3: 1's number of strands, the connecting layer is the elastic fibre yarn with support performance, one end of connecting layer is connected with surface layer, the other end is connected with bottom layer, the bottom layer is woven by antibacterial microcapsule fibre yarn and moisture -absorbing and sweat -releasing fibre yarn according to 1: 1 1: 2's number of strands.

The present invention relates to a reinforced polyamide 6-based parallel composite elastic fiber and a preparation method thereof. The present invention utilizes a three-step melt polymerization method to prepare a PA6-based polyetherester-based thermoplastic elastomer with high viscosity, excellent mechanical properties, and significant elasticity using a polyetherester diol as a soft segment. The PA6-based polyetherester-based thermoplastic elastomer is then composited with PA6 in parallel and melt-spun to produce a PA6-based parallel composite elastic fiber exhibiting both intrinsic and morphological elasticity. Compared to existing technologies, the present invention offers a simpler preparation process and facilitates large-scale production. The resulting PA6-based parallel composite elastic fiber exhibits good compatibility, significant elasticity, and excellent mechanical properties, with a strength of up to 3.57 cN / dtex, meeting market demand for both functionalized materials and elastic fibers.

The invention relates to a carding spunlace non-woven fabric of a composite elastomer and a preparation method thereof, the carding spunlace non-woven fabric of the composite elastomer is prepared from the elastomer and inelastic fiber by adopting a carding web-forming composite spunlace entanglement process, the elastomer is one or a combination of a polyolefin elastomer, a polyurethane elastomer and a spandex elastomer, and the inelastic fiber is one or a combination of the polyolefin elastomer, the polyurethane elastomer and the spandex elastomer. The non-elastic fibers are one or a combination of cellulosic fibers, polyester fibers and polypropylene fibers, and are arranged into a three-dimensional net structure in a carding net forming manner, so that the prepared carding spunlace non-woven fabric has transverse elasticity. According to the product prepared by the invention, the elastomer is used as a skeleton structure and is compounded with inelastic fibers such as the cellulosic fibers, the polyester fibers and the polypropylene fibers, so that the transverse tensile elasticity of the material is realized while better hygroscopicity, air permeability and softness are maintained.

The utility model relates to the technical field of chinlon 6 stretch yarns, and discloses an environment-friendly original bleached chinlon 6 stretch yarn which comprises polyurethane elastic fibers, polyolefin elastic fibers, cystine polymerization chemical fibers and at least two composite stretch yarn main bodies which are twisted into one strand through a twisting machine. The cystine polymerized chemical fibers are wound outside the composite stretch yarn main body through a twisting machine and wrap the composite stretch yarn main body, and the polyolefin elastic fibers and the cystine polymerized chemical fibers are arranged at intervals in a staggered mode. A plurality of polyurethane elastic fibers are arranged and are wrapped outside the polyolefin elastic fibers through a twisting machine. The utility model discloses a novel structure.

The utility model belongs to cable technical field especially relates to a kind of bend-resistant sensor cable for high-speed train set, the cable with high elasticity fiber rope as center filling rope, filling rope outside evenly distributes multiple copper alloy conductors, conductor is covered in proper order insulating layer, first wrapping layer, shielding layer, second wrapping layer and sheath layer;Wherein insulating layer uses thermoplastic polyester elastomer, first wrapping layer is thin type flame-retardant cloth, shielding layer is composed of tinned copper wire and fiber silk, second wrapping layer is thin type non-woven fabric, sheath layer is crosslinking type polyurethane.The utility model by optimizing conductor material, insulation and sheath material selection and multilayer structure design, significantly improve the bend-resistant performance of cable, while having excellent electrical insulation, shielding anti-interference and flame retardancy, can long-term stable adapt to frequent bending, vibration and complex environment in high-speed train set operation, meet the reliable transmission demand of sensor signal.

The invention provides a multilayer aramid fiber high-temperature-resistant material as well as a preparation method and application thereof, and belongs to the technical field of fiber multilayer materials. The multilayer aramid fiber high-temperature-resistant material comprises a dust facing layer, an anti-static layer and a high-strength filtering layer, the dust facing layer is a non-woven fabric made of meta-position aramid fibers and polyolefin elastic fibers, the non-woven fabric is entangled through spunlace reinforced fibers, and the non-woven fabric and the spunlace reinforced fibers form a covalent cross-linked crystal network structure; the anti-static layer is formed by performing low-pressure water needle spunlace on a woven fabric prepared from meta-aramid, para-aramid and conductive fibers in a plain weave structure or a square plain weave structure, and has the characteristics of static electricity prevention, stable structure and high temperature resistance, and the high-strength filter layer is a woven fabric prepared from polyimide filaments in a 2-up 2-down right twill weave structure or a honeycomb weave structure. The high-temperature-resistant material with high filtering efficiency and high strength is prepared by virtue of special fiber morphology and fabric weave.

The invention relates to the technical field of polyester fiber preparation, in particular to bio-based polyester two-component elastic fiber and a preparation method thereof.The bio-based polyester two-component elastic fiber is prepared from, by weight, 80-110 parts of bio-based polyester elastomer and 40-80 parts of bio-based modified polyester. The bio-based polyester two-component elastic fiber prepared by the invention has good antistatic property and rebound resilience.

The present disclosure discloses a telescopic water pipe, including a first connector, a second connector, and an outer sleeve. Two ends on a left side and a right side of the outer sleeve are respectively connected to the first connector and the second connector. A corrugated pipe is also placed in the outer sleeve. A left end and a right end of the corrugated pipe are respectively connected to the first connector and the second connector. The outer sleeve includes a woven tape and elastic filaments. The woven tape and the elastic filaments are seamlessly woven into the outer sleeve. When water passes, the outer sleeve and the corrugated pipe extend horizontally to both sides. The present disclosure has the advantages of simple structure, convenience in use, high water pressure resistance, and capability of prolonging the service life.

Disclosed are a composite elastic fiber and a preparation method therefor. The composite elastic fiber is a side-by-side hollow bicomponent composite elastic fiber, and comprises component A and component B, wherein the component A is nylon 6; the component B comprises a nylon 6 elastomer; the nylon 6 elastomer is a linear block copolymer composed of a polycaprolactam hard segment and a polyether or polyether amine soft segment; the mass fraction of the hard segment in the nylon 6 elastomer is 25-90%, and the mass fraction of the soft segment therein is 10-75%. The composite fiber of the present invention has a high three-dimensional self-crimping capability; moreover, the composite fiber has the characteristics of soft and elastic hand feel, high elongation and excellent resilience, and can be dyed with various types of dyes, resulting in bright colors and deep dyeability; the nylon 6 and the nylon 6 elastomer have a relatively high moisture regain; by using a hollow structure, the composite elastic fiber has superior loftiness, and significantly better breathability and moisture regain compared to other elastic fibers such as polyester T400, spandex, and textured nylon, and offers a softness that closely resembles cotton.

The invention discloses a method for improving the crimp shrinkage rate of polylactic acid ultrahigh-elastic fibers, and belongs to the technical field of fibers. Two polylactic acid POYs sequentially pass through a raw yarn frame, a first roller, a deformation hot box and a cooling plate and then are input into a false twister to be twisted in the same direction, two fibers output from the false twister are input into the same second roller together to be plied, plied tows sequentially pass through a network nozzle, an auxiliary roller, a shaping hot box and a feeding roller and then are subjected to oiling and winding treatment, and the polylactic acid POYs are obtained. The ultrahigh-elasticity fiber is prepared. The finished product fiber formed by stranding and elasticizing the two strands of yarns can be a single-strand yarn elasticized fiber, so that the crimp shrinkage rate of the polylactic acid ultrahigh-elastic fiber is improved, and the subsequent dyeing quality risk is overcome.

Article of clothing (3, 12) for stimulating lymph flow in a body area (1, 11) of a wearer (2) with having a basic body (4, 13) a multitude of protrusions (8) which are arranged on an inside (9) of the garment (3, 12), wherein the projections (8) are arranged such that they form at least one track (7, 16), wherein at least one pathway (7, 16) runs along at least one lymphatic pathway of a carrier (2), characterized by that the basic body (4, 13) comprises diagonally and / or counter-rotating elastic fiber strands and that the projections (8) are point-shaped and / or have a circular cross-section and form part of a spherical sphere, wherein the projections (8) have a height (H) between 0.5 mm and 2 mm and / or a diameter (D) between 0.5 mm and 3 mm and / or a distance (A) of 0.5 cm to 1.5 cm from each other along the at least one track (7, 16).

The invention discloses a preparation method of a high-elasticity comfortable environment-friendly jeans material, and relates to the field of textile and clothing materials. Regenerated cellulose and spandex or high-elastic fibers are introduced into the warp yarns and the weft yarns respectively, and 2 / 1 or 3 / 1 twill weaving is matched; wet enzyme desizing and a cellulase-selenium bridge auxiliary agent are used for synergic softening finishing, and a fluoride-free hydrophilic agent is used for non-ironing shaping; active or natural dye can be selected for neutral dyeing. According to the method, the breathability and the hand feeling are improved while low growth and high recovery rate are achieved, the strength is kept, the shrinkage rate is low, and the fastness is high; and the selenium bridge polymer endows more than or equal to 99% of persistent bacteriostasis to escherichia coli. And the method is green in process, low in energy consumption and chemical dosage and suitable for large-scale production.

The invention belongs to the technical field of polyamide thermoplastic elastomer preparation and elastic fibers, and discloses a fiber-grade polyamide thermoplastic elastomer preparation method, which comprises a ring-opening reaction, a pre-polycondensation reaction and a polycondensation reaction, and specifically comprises the following steps: firstly, preparing a double-carboxyl-terminated prepolymer of which the end group is carboxyl through a ring-opening reaction of caprolactam; then the binary acid mixture and the diamine mixture are sequentially subjected to pre-polycondensation reaction and polycondensation reaction to prepare the polyamide thermoplastic elastomer, and the obtained polyamide thermoplastic elastomer can be used for preparing the polyamide elastic fiber through melt spinning. The polyamide thermoplastic elastomer disclosed by the invention does not have a bonding phenomenon in a melt spinning process, and has excellent mechanical properties and elastic properties. The preparation method is simple, large-scale preparation can be carried out in an existing polymerization device, the obtained elastomer can be subjected to spinning processing in existing spinning equipment, the production efficiency is high, and the preparation method has great application prospects.

The invention relates to the technical field of neutrophile granulocyte separation, in particular to a mouse neutrophile granulocyte separation method which comprises the following steps: (1) anesthetizing and disinfecting a mouse; (2) tissue sampling; (3) tissue digestion; (4) preparing a cell suspension; (5) purifying cells; (6) cell culture; according to the method disclosed by the invention, isoflurane is adopted in the anesthesia disinfection step, so that central nervous activity of mice can be rapidly inhibited, tissue damage caused by stress reaction is avoided, and chemical stimulation can be reduced while body surface microorganisms are cleared through combination of ethanol disinfection and sterile normal saline flushing, and aortic tissues with intact activity are provided for subsequent material taking. In the compound enzyme digestive juice, collagenase I can specifically degrade aortic wall collagenous fibers, trypsin dissociates adhesion connection between cells, neutral protease assists in decomposing elastic fibers, and DNA enzyme I is supplemented to inhibit cell aggregation, so that the contradiction between incomplete digestion and large cell damage of the traditional enzyme juice is effectively solved.

The invention relates to the technical field of fabric manufacturing, and discloses a durable contact cool feeling, moisture absorption and sweat releasing functional sock and a preparation method thereof.The preparation method comprises the following steps that cellulose fibers are woven into first yarn, composite fibers are woven into first bottom yarn, and polyurethane elastic fibers are woven into second bottom yarn; respectively dyeing the first yarns, the first ground yarns and the second ground yarns to obtain dyed first yarns, dyed first ground yarns and dyed second ground yarns; winding and wrapping the dyed first ground yarn and the dyed second ground yarn to form second yarn; weaving the dyed first yarn and the dyed second yarn on a hosiery machine; and the all-in-one machine is used for mesh sewing, and sewed socks are shaped. The functional socks prepared by the manufacturing method provided by the invention can effectively improve the contact cool feeling performance, the moisture absorption and sweat releasing functions and the durability, can be subjected to conventional dyeing, and are resistant to high temperature and sunlight.

The invention discloses an application of methylene blue in preparation of drugs for preventing and treating aortic dissection and aortic aneurysm, which proves that after methylene blue is orally taken in an aortic aneurysm mouse model, expansion of aortic diameter can be inhibited and occurrence rate of aortic dissection and aortic aneurysm can be reduced after methylene blue is given. Abnormal aorta dilatation of mice and disorder and fracture of elastic fibers caused by BAPN water drinking are improved. Therefore, the death rate of the BAPN-induced aortic dissection and aortic aneurysm mice can be reduced and the disease progress of the aortic dissection and aortic aneurysm can be delayed by giving the methylene blue, so that the expansion condition of the aorta of the mice is improved and the survival rate is increased.

The invention discloses a bio-based double-core high-elastic jean fabric, and particularly relates to the field of bio-based fiber materials. Weft yarns of the fabric adopt bio-based double-core elastic twisted yarns as core yarns and covering yarns wrapped by cotton fibers, and warp yarns are pure cotton yarns. The preparation method comprises the steps that chitosan and zinc lignosulfonate are blended, spun and crosslinked, and elastic fiber A is prepared to serve as first core yarn; blending silk fibroin with epoxidized natural rubber latex containing a vulcanizing agent, performing wet spinning, gelation and steam vulcanization, and performing genipin cross-linking to obtain an elastic fiber B as a second core yarn; the two kinds of core yarn are doubled and entangled through an air network to obtain double-core plied yarn; taking the yarn as core yarn, wrapping the yarn with cotton roving, and preparing core-spun weft yarn through a siro spinning process; and finally, weaving the fabric and pure cotton warp yarns into gray fabric, and performing desizing, dyeing, sizing and water washing treatment to obtain the final fabric. The fabric is excellent in elasticity, high in bio-based content, comfortable to wear and environmentally friendly.