64results about How to "Good stretch recovery" patented technology

The invention provides a method for preparing high-intensity covalence/ion interpenetrating polymer network easily molded gel, belonging to the field of functional polymers. The method comprises the following steps: mixing acrylamide with good biocompatibility and sodium alginate, uniformly stirring, reacting with a chemical cross-linking agent, polyvinylpyrrolidone and an initiator, under the action of the chemical cross-linking agent, forming a polyacrylamide gel network from acrylamide, forming semi-interpenetrating polymer network gel when sodium alginate penetrates through the polyacrylamide gel network, and performing aftertreatment by using a polyvalent metal salt solution, thereby forming the interpenetrating polymer network gel. The polyacrylamide/sodium alginate interpenetrating polymer network gel prepared by using the method is high in tensile strength, good in tension resilience, uniform in structure, good in molding property, and can be used in fields such as intelligent and self-repairing type functional textiles, medical textiles, printing wastewater dye collection, and the like.

The invention discloses a preparation method of polytrimethylene terephthalate fiber with shape memory characteristics, including: firstly, selected polyester polymer is provided with at least 0.8dL/g of intrinsic viscosity and contains at least 85mol percent of polytrimethylene terephthalate, wherein, at least 85mol percent of the repeating unit is composed of three-methylene; secondly, the polyester polymer is melted and transported through a screw melting extruder, the melting body is metered through a metering pump and is extruded out through a spinneret, and as-spun fibers are drafted successively through a pair of drafting hot rollers after being cooled through lateral blowing; thirdly, the drafted fibers are introduced into a group of grouping roller stereotype boxes with steam; fourthly, tow is introduced into a winding head to be winded into mold. The fiber made through the invention has the advantages of good packaging appearance forming, good structural stability and soft handle. And with lower modulus, the fiber is still provided with good elasticity and tensile recoverability. The textiles made of the fiber which are produced through the process are provided with good shape memory characteristics.

The invention relates to a fusing alloying sea-island fibre and a production method thereof, wherein the components of island and sea are respectively PTT and PE. The production method comprises the following steps: slicing the PTT and drying, mixing the PTT slices with the PE by a certain proportion; fusing and mixing the PPT and PE into a screw extruder and then jetting the mixture, finally drawing, curling and cutting the mixture to make the product. The invention overcomes the shortage of the prior art, has excellent performance and low production cost, and has favorable economic and social benefits.

The invention discloses a sea-island polyester drawn yarn, of which a sea component is a COPET and an island component is a PTT, and mass percent of the PTT is 65%-75%, and mass percent of the COPET is 25%-35%. A production method of the sea-island polyester drawn yarn comprises the following steps: drying sections of the PTT, and then mixing the PPT with the COPET according to a certain proportion, mixing them in a screw extruder in fusion form, and jetting yarns via a jetting plate, finally, drawing and coiling the yarns to form products. The invention provides a sea-island polyester drawn yarn with high degree of dyeing and a preparation method thereof.

The invention discloses a conductive micro-nanometer fiber stranded wire based on solvent-free electrospinning and a preparing method thereof. The conductive micro-nanometer fiber stranded wire comprises a photocuring material template stranded wire and a conductive macromolecule layer. The photocuring material template stranded wire is formed by winding micro-nanometer fiber cured by solvent-free electrospinning ultraviolet light. The conductive macromolecule layer is manufactured through an in-situ polymerization method and comprises conductive macromolecule layer bodies permeating into the template stranded wire and wrapping the template stranded wire. According to the conductive micro-nanometer fiber stranded wire, conductivity of the fiber stranded wire is further improved while excellent stretchability is kept, organic solvent does not need to be added in the electrostatic spun yarn preparing process, the preparing process is safer and more environmentally friendly, and the stranded wire is suitable for large-scale production.

The invention relates to a novel biomass elastic short fiber blended sports knitted fabric. The knitted fabric comprises yarns which are formed by fibers and blended by biomass elastic short fibers (namely comfortable and elastic yarns) and bleached hemp fibers. The fabric structurally adopts weft-knitting interlock stitch. The novel blended sports knitted fabric is comfortable and elastic, is excellent in hand feeling and good in stretching resilience, can be still elastic, durable and stable after being stretched for multiple times, suffering from solarization and being subjected to after-treatment process, is not easy to wrinkle, is easy to manage and free in extension, can beautify stature and fit a wearer well, is free from compression and tension when being worn, is hydroscopic and fast-dry, has the functions and characteristics of preventing mold, bacteria, ultraviolet, static electricity and the like, and is a green, low-carbon and environment-friendly novel blended sports knitted fabric leading the trend of the times.

The invention discloses a sea-island composite fiber mixed fabric, which comprises warps and wefts. The warps are formed by blending cotton fibers and sea-island composite fibers, and the wefts consist of cotton fibers, sea-island composite fiber blended fibers and polyolefin elastic fibers by means of core spinning. All fibers in the fabric include, by weight, 50% to 70% cotton fibers, 20% to 35% sea-island composite fibers and 10% to 15% polyolefin elastic fibers. According to the above structure, the sea-island composite fiber mixed fabric has the advantages of softness, high elasticity, fine breathability and high hygroscopicity, can be used for various clothes, such as sportswear, tennis apparels, golf jackets, shirts, swimsuits, close fittings, coats and the like.

The invention relates to a method for producing a textile composite material with shrink properties, in particular heat shrink properties, preferably in the form of a shrinkable, in particular heat-shrinkable textile upholstery and/or covering material, preferably for seating furniture, to the textile composite material obtained therefrom and to the uses thereof.

The invention provides semi-aqueous silicone, a costume and a preparation method of the costume. The semi-aqueous silicone is prepared by mixing first rubber cement and second rubber cement, wherein the first rubber cement comprises silicic acid gel, zinc oxide, a vulcanization accelerator and an anti-aging agent, and the silicic acid gel accounts for 74-84% of the semi-aqueous silicone; the second rubber cement comprises polyurethane paste which accounts for 2-7% of the semi-aqueous silicone. The costume with established silicon-printing patterns can be prepared by using the semi-aqueous silicone and the preparation method, and the silicon-printing patterns are formed in the steps of first printing, drying to a semi-dry state, second printing and then drying and setting. The silicon-printing patterns of the costume have beautifying and decorating effects, moreover, the local support of limbs can be strengthened, the stretching recovery performance of the costume can be improved, and the application potential in sports and medical correction products is great.

The invention relates to a spinning method of a super-strong absorbent high elastic shaggy chenille yarn, and belongs to the technical field of spinning. Core yarns are made of polyester filament, woolen yarns are prepared from, by weight, 17-19% of PTT staple fiber, 21-35% of polyester-nylon composite filament, 36-58% of terylene interlaced yarn; two 16S/2 or four 16S core yarns are taken as corewires, the core yarns and the woolen yarns are fed synchronously through same group yarn taking 6-10 yarns as a group, high-speed rotation and twisting are carried out through a swiveling head, the woolen yarns are wound synchronously to form a yarn ring on a cutting distance piece, slides down with the rotation of a roller piece, the woolen yarns are cut into short fibers, and the cut short fibers and cross-twist core yarns enter a control roller and a twisting area, the yarn is spun from Z-Z-S direction of twist, fluff convolutes in a spiral rod-shaped shaggy yarn. The spinning method of the super-strong absorbent high elastic shaggy chenille yarn has the advantages of good stretch resilience, free stretch, no compression, no tension, high elasticity, high fleeciness and high water absorption capacity.

The invention relates to a method for producing worsted wool fabrics with polyolefin elastic fibers. The method for producing the worsted wool fabrics with the polyolefin elastic fibers has the advantages that anti-pilling treatment is carried out by the aid of organophosphate and antimony trioxide mixtures which are used as anti-pilling agents, and accordingly anti-pilling effects of the fibers and textile fabrics further can be improved and can reach 4-5 levels; softening treatment is carried out by the aid of water-soluble organosilicone softening agents, and accordingly the wool and cashmere fiber textile fabrics can have smooth and plump hand feel; the polyolefin elastic fibers have excellent characteristics of extremely low elasticity change and high elastic recovery of elongation, accordingly, merits of the various fibers can complement one another, weakness of the various fibers can be reduced, and the fabrics made of the fibers are good in strength and high in water absorption and thermal property, are stiff and smooth and are beneficial to human health and environmental protection.

The invention discloses a multifunctional super-hydrophobic conductive rubber composite material and a preparation method thereof. The method comprises the following steps: soaking rubber foam consisting of 40% of natural rubber and 60% of butadiene styrene rubber into a tetrahydrofuran solution of silver trifluoroacetate; and reducing the silver precursor, and carrying out phase separation on thepartially dissolved polymer matrix in a non-solvent in the reducing solution to obtain the super-hydrophobic conductive rubber foam/silver nanoparticle composite material. The composite material disclosed by the invention has tensile and compression response properties, can be used for detecting human motion by wearable electronic equipment, and is good in stability, excellent in cycle performance and wide in application range; and the material has super-hydrophobic, electric-heating and photo-thermal effects, so that the application of the material in severe environments is broadened.

The invention relates to a production method of a spinning solution having a memory function. The production method comprises the steps of 1, preparing a fiber-forming polymer solution; 2, preparing slurry with the memory function; 3, uniformly dispersing the fiber-forming polymer solution prepared in step 1 and the slurry with the memory function prepared in step 2 in stirring equipment, and storing the materials for 24-36 hours till the materials are cured completely, so that a shell spinning solution is obtained, wherein the shell spinning solution can be used for spinning shells. According to production method, the modified spinning solution is prepared, it can be guaranteed that after silk flocks are subjected to drafting and thermoforming, basically no residual stress exists, and the silk flocks are unwound smoothly; what is more important, a fiber product which is stable in structural performance, good in mechanical performance and low in fiber modulus and has the shape memory characteristic is obtained.

The invention relates to a skin-ice smooth high-elasticity knitted fabric. The knitted fabric comprises surface layer yarns and bottom layer yarns; in a four-way triangular structure of the knitted fabric, a first way and a second way are the surface layer yarns, a third way and a fourth way are the bottom layer yarns, the first way is a floating thread, looping, looping and floating thread weaving structure cycle, the second way is a looping, floating thread, floating thread and looping weaving structure cycle, the third way is a floating thread, floating thread, looping and looping weaving structure cycle, and the fourth wasy is looping, looping, floating thread and floating thread weaving structure cycle. By means of the high-stitch-length double-face structure, the fabric has certain stiffness and smoothness and is not thick and heavy; according to the invention, environment-friendly superfine regenerated fibers and chinlon/spandex wrapped filament fibers with good rebound resilience are selected; the superfine regenerated fibers are smooth in hand feeling, good in moisture absorption and moisture permeability and good in dyeing performance, so that the fabric has elegant luster like real silk; the polyamide fiber is excellent in wear resistance and durability, good in hygroscopicity and very good in stretching restorability.