244 results about "Elastic fiber" patented technology

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 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 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 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.

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 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 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.

The invention relates to an application of Quercetin (QUE) or a derivative thereof in a medicine for resisting vocal cord fibrosis and a preparation of the Quercetin or the derivative thereof. The quercetin can significantly inhibit abnormal deposition of extracellular matrix (ECM) after vocal cord injury, improve reduction of hyaluronic acid (HA) and elastic fibers (EF), and reduce overexpression of type I collagen (COL1A1) and fibronectin (FN1). Besides, by regulating PI3K / AKT and MAPK signal channels, the quercetin inhibits proliferation and migration of fibroblasts and promotes apoptosis of the fibroblasts, so that vocal cord fibrosis is effectively relieved. The invention also provides an application of a preparation of the quercetin and the derivative thereof combined or not combined with other anti-fibrosis drugs (such as 5-fluorouracil and dexamethasone) in treatment of vocal cord fibrosis, wherein the dosage forms of the preparation comprise an oral preparation, an injection, a spray or a local gel preparation.

Bi-elastic fabric with parallel warp yarns, and associated method. The present invention relates to a fabric (10), more particularly a compression fabric, comprising warp yarns (12) and weft yarns (14). The warp yarns (12) are parallel to each other, at least one warp yarn (12) out of seven being such that, after any elongation of said yarn less than or equal to at least 30%, said yarn recovers its original shape before the elongation. Each weft yarn (14) comprises an elastane core entirely covered by a web, the web comprising filaments and / or fibers forming a continuous covering of the core. The invention further relates to an associated manufacturing method. Figure for the abstract: Fig 1

The invention relates to the field of nylon braids for intelligent wearing, and discloses an anti-edge-scattering high-strength nylon braid for intelligent wearing and a preparation method thereof. The edge-scattering-preventing high-strength nylon braid for intelligent wearing is formed by hot-pressing and plasticizing a nylon braid body, the nylon braid body is formed by weaving nylon elastic fibers, and the nylon elastic fibers are prepared from the following raw materials in parts by weight: 45-55 parts of modified PA66, 18-28 parts of PA12, 7-12 parts of PA1212, 4-7 parts of a bonding stabilizer, 20-30 parts of a plasticizer, 1-3 parts of an antioxidant and 0.3-1.5 parts of a pigment. The modified PA66 is prepared from PA66, a styrene-octylene-glycidyl methacrylate copolymer, polyphenyl ether grafted maleic anhydride and a flexibilizer. The preparation method comprises the following steps: weaving the nylon elastic fibers to obtain the nylon belt body; and carrying out hot-pressing plasticizing molding and cooling on the nylon belt body. The nylon braid has good elasticity after being used for a long time and is not prone to deformation and edge scattering.

This invention provides a functionalized microporous elastic fiber and its preparation method. The preparation process involves first dissolving a predetermined mass of polyurethane prepolymer in a binary solvent to obtain a spinning solution; then mixing silicone oil and an emulsifier to obtain solution A; simultaneously, uniformly dispersing functional particles in deionized water to obtain dispersion B; then adding dispersion B to solution A and mixing to obtain an emulsion coagulation bath; finally, placing the prepared spinning solution in a spinning device and ejecting it through spinning holes, allowing the spun fibers to enter the prepared emulsion coagulation bath for a predetermined time, followed by stretching and drying to obtain functionalized microporous elastic fibers. This invention controls the difference in compatibility between the binary solvent and the water and silicone oil in the emulsion coagulation bath, enabling rapid shaping of the spun fibers and simultaneously achieving the preparation of functionalized fibers. Based on the principle of phase separation, by controlling the solvent ratio and the degree of emulsification in the coagulation bath, and further through stretching and high-temperature drying and setting, porous functionalized elastic fibers are obtained.

A second aspect relates to a polyalkylene terephthalate polymer obtained or obtainable from the method of the first aspect. A third aspect relates to the use of the polyalkylene terephthalate polymer of the second aspect for textile, fiber, packaging, plastic, automotive, and electronic applications. A fourth aspect relates to a method for producing products, comprising (I) providing a polyalkylene terephthalate polymer of the second aspect, and (II) producing textiles, fibers, packaging, plastics, automotive parts, and electronic parts from the polyalkylene terephthalate polymer provided in (I). A fifth aspect relates to a method comprising a further step of converting a again obtained polyalkylene terephthalate polymer obtained by the method of the first aspect to obtain a polymer product. A sixth aspect relates to a method comprising a further step of converting a residue obtained or obtainable from the method of the first aspect, and / or converting an elastic fiber residue obtained or obtainable from the method of the first aspect to obtain one or more monomers, polymers, or polymer products.

The present application relates to the technical field of textiles, and provides a preparation method of a multi-directional elastic environment-friendly cloth, which solves the problem that existing elastic fabrics are difficult to simultaneously consider warmth, light weight, excellent multi-directional elasticity and environmental friendliness; the method comprises the following steps: S1, raw material preparation: including warp yarn, filling-in warp yarn and weft yarn; S2, on-machine weaving: on a loom, the warp yarn, the filling-in warp yarn and the weft yarn are interwoven to form a gray cloth with a three-dimensional net-like structure; the warp yarn is sequentially interwoven with weft yarns of different layers in a periodically changing oblique path to form a surface layer and a bottom layer of the fabric; the filling-in warp yarn is constrained in a straight line state between the surface layer and the bottom layer and does not interweave with the weft yarns; S3, post-finishing: the gray cloth obtained in step S2 is subjected to heat setting treatment to obtain a multi-directional elastic environment-friendly cloth; wherein the warp yarn is a composite porous elastic fiber; the weft yarn is a PTT filament; and the filling-in warp yarn is a para-aramid filament.

The invention provides a high-fatigue-resistance high-response high-elastic fiber material and a preparation method thereof. The high-fatigue-resistance high-response high-elastic fiber material comprises a liquid crystal functional phase, the high-fatigue-resistance high-response high-elastic fiber material further comprises a thermoplastic polymer elastic matrix phase, and the thermoplastic polymer elastic matrix phase and the liquid crystal functional phase construct a modulus smooth transition gradient layer on a two-phase interface through gradient coupling and topological interlocking. The modulus smooth transition gradient layer is used for efficiently transmitting strain and smoothly dissipating stress; wherein the weight-average molecular weight (Mw) of the thermoplastic polymer elastic matrix phase is 8.2 * 10 < 4 > g / mol to 2.5 * 10 < 5 > g / mol; by mass, the usage amount of the thermoplastic polymer elastic matrix phase is 50-90 parts. The fiber material with high fatigue resistance, high response and high elasticity has efficient stimulation responsiveness, high elasticity and toughness and excellent fatigue resistance, and is better adapted to dynamic application scenes such as intelligent fabrics, wearable equipment and flexible actuators.

A shoemaking dirt prevention and removal device belongs to the field of dirt prevention and removal and comprises an air pressure driving expansion cleaning device, a pre-storage foundation plate device and a grip pressure device, and the pre-storage foundation plate device comprises a cleaning plate. The linear groove can store a part of cloth of the elastic fiber cloth bag in advance, when the cavity is cleaned, the annular air bag is inflated to expand and can drive the elastic fiber cloth bag to expand, so that a part of the elastic fiber cloth bag stored in the linear groove is driven to be pulled out, and the elastic fiber cloth bag is pulled out under the pressure. And friction can be generated with the inner wall of the cavity, so that the cleaning effect on the inner wall of the cavity is improved.

The invention relates to the technical field of biological medicines, and particularly relates to a method for researching the influence of silencing or inhibiting a UBE2G1 gene on the growth of abdominal aortic aneurysm by constructing a UBE2G1 gene function deletion mouse model. Results show that silence or inhibition of UBE2G1 gene expression can inhibit growth of abdominal aortic aneurysm, alleviate destruction of elastic fibers of arterial tissues, reduce levels of inflammatory factors such as TNF-alpha, IL-1beta and IL-6 in a body and inhibit polarization of macrophage M1. According to the invention, a certain theoretical basis is provided in the aspect of treatment of abdominal aortic aneurysm by means of biotechnology, and the UBE2G1 gene (or protein) can be used as a drug target for treatment of abdominal aortic aneurysm.

The invention discloses an application of R-3-hydroxybutyric acid (R-3-hydroxybutyric acid, 3HB) or a derivative of the R-3-hydroxybutyric acid in delaying and preventing light aging of skin. Experiments prove that the 3HB or the derivative thereof can remarkably improve the skin appearance of a mouse with photoaged skin, improve the antioxidant capacity of skin tissue, remarkably recover the thickness of the epidermal layer and the corium layer of the skin, maintain the collagen content in the skin, reduce the denaturation degree of elastic fibers in the skin and improve the skin aging resistance of the mouse. The obvious effect of delaying and preventing the skin photoaging is achieved. The invention provides a novel skin aging treatment medicine or cosmetic candidate compound which has a wide clinical application prospect and good social and economic benefits.

The invention relates to a PA12 / PA6 parallel composite elastic fiber and a preparation method thereof. Nylon 12 is adopted as a high-shrinkage component, PA6 is adopted as a low-shrinkage component, parallel compounding is achieved, industrial production with high spinning speed and no yarn breakage can be achieved, and real production significance is achieved. Meanwhile, the PA12 / PA6 parallel composite elastic fiber is excellent in elastic property, low in modulus, soft and skin-friendly, has excellent dyeing property in an acid dye system, and provides a new solution for elastic high-end fabric.

The invention provides a preparation method of a high-elasticity wear-resistant fabric, and relates to the technical field of textile fabric preparation, the preparation method comprises the following steps: carrying out melt blending spinning to obtain composite elastic fibers, doubling and twisting the composite elastic fibers and chinlon 66 filaments to form warp yarns, and taking UHMWPE filaments as core yarns, the preparation method comprises the following steps: taking a polyurethane urea elastomer and silicon carbide and graphene core-shell nanoparticles as raw materials, taking composite elastic fibers as fasciated yarns for wrapping to form weft yarns, weaving by a three-dimensional interlacing weave process of the warp yarns and the weft yarns, forming a quincunx locking structure by interweaving points, compounding the polyurethane urea elastomer and the silicon carbide and graphene core-shell nanoparticles to form a coating precursor solution, and immersing the rough fabric blank into the coating precursor solution; the composite elastic fiber has both high elasticity and basic wear resistance, the three-dimensional interlaced weave process can further enhance the synergy of the elasticity and wear resistance of the fabric, a coil is stretched to release elasticity when the quincunx locking structure is stretched, the coil is quickly reset when the quincunx locking structure rebounds, and the wear resistance of the fabric is improved. The coating precursor solution can form a wear-resistant elastic coating which is tightly combined with fibers and structures on the surface of the fabric.

The invention relates to a polymer, an elastomer and an elastic fiber, the polymer comprises a hard segment and a soft segment, the hard segment comprises a polyamide block, and the soft segment comprises a polyether block and / or a polyether amine block; wherein the polyamide block is obtained through reaction of pentamethylene diamine and long carbon chain dibasic acid, and the long carbon chain dibasic acid comprises more than two long carbon chain dibasic acid with odd number of carbon atoms or more than two long carbon chain dibasic acid with even number of carbon atoms. The polymer provided by the embodiment of the invention has excellent mechanical properties, and when the polymer is used for preparing the elastic fiber, the elastic fiber with better elasticity and strength can be obtained.

This invention relates to a blending process for hemp fiber and sorona fiber, belonging to the technical field of blending and processing of natural fibers and bio-based elastic fibers. The blending process for hemp fiber and sorona fiber of this invention includes the following steps: raw material selection → pre-spinning process → post-spinning process → packaging. This invention solves the problems of poor spinnability, high breakage rate, and stiffness and wrinkling in pure wet-spun hemp through specific proportions and wet spinning processes, achieving high-count, stable, and high-quality production. This significantly improves spinnability, enhances yarn quality, and greatly improves hand feel and comfort, achieving high elasticity and comfort to meet user needs.