21results about How to "Improve breaking strength" patented technology

The invention belongs to the technical field of textile fabrics, and particularly relates to an ultraviolet-proof antibacterial fabric and a preparation method thereof. The ultraviolet-proof antibacterial fabric comprises a base cloth layer and a modified polyester fabric layer, the modified polyester fabric is obtained by dipping a polyester fabric in a finishing liquid; the finishing liquid comprises a first finishing liquid and a second finishing liquid; the first finishing liquid is prepared from the following raw materials: a carboxymethyl chitosan derivative and polycarboxylic acid; the second finishing liquid is prepared by mixing nano titanium dioxide and absolute ethyl alcohol. According to the invention, the pre-treated polyester fabric is subjected to secondary surface modification by using the finishing liquid, and the durability of the fabric product is remarkably improved by using a covalent grafting mode.

The invention provides a preparation method of fibers with efficient photo-thermal heating and heat preservation functions, which comprises the following steps of: preparing Cu2S micro-nano hybrid particles with ultra-small particle size by a template load growth method, and preparing ethylene glycol slurry of the Cu2S micro-nano hybrid particles with small particle size and high dispersion by a wet grinding synchronous modification technology; the preparation method comprises the following steps: proportionally adding ethylene glycol slurry into a polyester polymerization reaction kettle, carrying out in-situ polymerization to prepare a PET / Cu2-xS nano composite material with efficient photo-thermal heating, and preparing hollow fibers with high hollowness by adopting a melt spinning method. The functional fiber prepared by the invention has heating and thermal insulation properties, and can realize 10-20 DEG C of light absorption heating, 0.9-0.98 of far infrared emissivity and 2.0-3.0 DEG C of far infrared radiation temperature rise, and the prepared fabric still has good breaking strength, weaving characteristic and excellent washability.

The application discloses a kind of low basis weight high-density fiber material preparation methods, the fiber material includes fiber layer and hot melt powder layer;The fiber layer is filled with superfine powder;Including the following steps: (1) polyvinyl alcohol ultra-short fiber, polyester superfine ultra-short fiber, fine denier ultra-short cellulose fiber are made into mixed slurry, then wet-laid web is made;(2) the wet-laid web is consolidated into intermediate material, then the intermediate material hot water bath is made, and polyvinyl alcohol ultra-short fiber is dissolved;(3) superfine powder is made into suspension, and filled into intermediate material;(4) hot melt powder is made into suspension slurry and coated and fixed.Reduce the unit area mass of material, increase the density of material under low basis weight, utilize the thermal closing pore effect of superfine powder, ensure the safety of battery separator product.Realize the technical requirement of low basis weight, high density and high porosity, solve the problem that existing fiber material cannot meet the use requirement of battery separator.

The application relates to the technical field of grass-proof cloth processing, in particular to a degradable and long-service-life grass-proof cloth and a preparation method thereof, which is prepared from the following raw materials in percentage by weight: 50-70% of polylactic acid, 1-3% of a modifier, 0.5-1% of a plasticizer, 2-5% of a monoacylglyceride, 5-10% of starch, and the rest of porous fillers, wherein the modifier is obtained by mixing fatty acid polyoxyethylene ester, sulfonated lignin salt and hydroxyethyl methacrylate. The grass-proof cloth prepared through the above-mentioned formula has excellent degradability, strong mechanical properties and weather resistance, so that the grass-proof cloth can maintain stable performance for a long time, thereby prolonging the service life.

The invention provides a preparation method of multifunctional temperature-regulating fibers. The preparation method comprises the following steps: dispersing silicon dioxide coated polyethylene glycol phase-change microcapsules into a polyethylene matrix; the preparation method comprises the following steps: dispersing nano powder capable of absorbing light and generating heat into polyester and polyamide matrixes; the multifunctional composite fiber with light absorption, heating, cool feeling and antibacterial functions is prepared through a skin-core composite spinning method. The functional fiber prepared by the invention has both heating and cooling properties and has excellent contact antibacterial and photo-thermal rapid sterilization capabilities, and the prepared fabric has good breaking strength, weaving characteristic and excellent washability.

The utility model discloses a high strength high color fastness wool yarn, including core yarn, the outside spiral of core yarn is wrapped and has the wrapped yarn layer, the outside of wrapped yarn layer is covered with first cladding fiber layer, the core yarn includes flax yarn, the wrapped yarn layer includes wool / PVA blended yarn, first cladding fiber layer is the original liquid color acrylic fiber, the utility model relates to a kind of high strength high color fastness wool yarn, core yarn uses flax yarn, can improve the breaking tenacity of yarn, and can improve the rigidity of wool yarn, so that the fabric prepared by it has better crispness. The wool / PVA blended yarn used is hydrolyzed after hot water treatment PVA, so that the loftiness of wool yarn can be improved, and the warmth-keeping effect is improved.

The application belongs to the technical field of modified functional fibers, and particularly relates to a manufacturing method of high-bulkiness special-shaped hollow fibers. The low-crystalline polyester chip is obtained by modifying the polyester, and the functional components such as graphite and tourmaline are introduced, and the high-bulkiness special-shaped hollow fibers are prepared by using a special-shaped spinneret to melt and spin, so that the hollow degree and bulkiness of the fibers are effectively improved, good breaking strength is obtained, and the oxygen index is effectively increased.

This invention belongs to the field of fabric technology, specifically relating to a high-strength abrasion-resistant composite fabric and its preparation process. The high-strength abrasion-resistant composite fabric includes a base fabric and an abrasion-resistant layer. The base fabric is made of a blend of polyester and cotton fibers in a mass ratio of 2-3:1. The abrasion-resistant layer comprises the following components by weight: 50-60 parts polyurethane resin; 8-10 parts modified nano-zirconia; 3-5 parts fluorinated silane phenol; 0.6-0.8 parts dispersant; and 40-50 parts organic solvent. The composite fabric provided by this invention includes a base fabric and an abrasion-resistant layer. This invention modifies the abrasion-resistant layer by adding modified nano-zirconia and fluorinated silane phenol, thereby improving the overall performance of the composite fabric and obtaining a high-strength composite fabric with good abrasion resistance, waterproof performance, warmth retention, and antibacterial properties. It is suitable for making functional jacquard fabrics using a jacquard process.

This invention discloses a nonwoven floor mat and its manufacturing process, belonging to the technical field of floor protection materials. The mat comprises, from top to bottom, a PE film layer, a nonwoven fabric layer, a self-adhesive layer, and a release paper layer. The PE film layer is a cast PE film, anchored to the nonwoven fabric layer by solvent-free hot pressing. The nonwoven fabric layer is a three-dimensional interconnected porous structure formed by pre-needling and reverse main needle punching of chemical fibers, with an air permeability ≥300mm / s and a saturated moisture absorption rate ≥15%. The self-adhesive layer is a grid-like water-based acrylic pressure-sensitive adhesive layer, and the width and length ratio of the PE film to the nonwoven fabric is 1:1. The manufacturing process includes four main steps: nonwoven fabric preparation, self-adhesive coating, nonwoven fabric-PE film lamination, and finished product post-processing. This invention, through synergistic optimization of structure and process, simultaneously achieves the core properties of waterproofing, anti-slip, self-adhesive, breathability, residue-free application, and moisture absorption and mildew prevention, making it widely adaptable to the surface protection needs of various scenarios such as construction, decoration, maintenance, painting, and warehousing.

This invention discloses a high-temperature resistant and acid / alkali corrosion resistant flat-plate biological filler and its preparation process, belonging to the field of flat-plate biological filler technology. It addresses the technical problem that the specific surface area, mechanical strength, high-temperature resistance, and acid / alkali corrosion resistance of existing flat-plate biological fillers need further improvement. Specifically, it includes the following steps: Modified PP fibers are uniformly laid along the X-axis, followed by uniformly laid ES fibers, and then mixed fibers are laid along the Y-axis. After hydroentangling and drying, a base membrane material is obtained. This invention effectively improves the specific surface area and mechanical strength of the flat-plate biological filler by activating and coupling the PP fibers, combining hydroentangling with in-situ construction of an organosilicon crosslinking network and heat setting treatment.

The present invention relates to the technical field of finishing of yarn-dyed fabrics, and specifically to a finishing method for yarn-dyed peach skin elastic blended fabrics. The finishing method for the yarn-dyed peach skin elastic blended fabrics comprises the following finishing process steps: singeing → roller dyeing desizing → drying → pre-stretching → liquid ammonia → overflow → dehydration → super softening → stretching → pre-shrinking, wherein the overflow process comprises the following stages: alkali treatment in a cylinder → washing with clean water at room temperature → acid neutralization → fiber opening → inactivation → washing with clean water → washing with softener. The present invention solves the pain point that the yarn-dyed regenerated cellulose blended peach skin fabrics on the market can only be made into non-elastic fabrics, while meeting the customer's demand for high cotton content while taking into account the feel of fabrics containing regenerated cellulose fibers.

The invention relates to the technical field of fabric coatings, and provides a method for preparing nano coating color paste by synergistically dispersing a dispersing agent and an adhesive, which comprises the following steps: dispersing a pigment and the dispersing agent with an aromatic structure in water, and stirring for a period of time to obtain a mixed solution; grinding the mixed solution to obtain water-based pigment color paste; an adhesive is taken to be mixed with the water-based pigment color paste, deionized water is added for uniform mixing, water-based pigment color paste / adhesive mixed liquid is prepared, and the adhesive has an aromatic structure; and mixing the water-based pigment color paste / adhesive mixed solution with the thickener solution, adding deionized water, and uniformly mixing to obtain the nano pigment color paste. A printed fabric prepared from the nano pigment color paste has excellent coloring performance, dry and wet rubbing color fastness, physical performance, ultraviolet protection performance and color fastness to sunlight, and can endow a curtain fabric with good appearance retentivity.

The present invention discloses a processing method of a high-elastic non-woven fabric, and belongs to the field of high-elastic non-woven fabric preparation. A processing method of a high-elastic non-woven fabric, the formula of the non-woven fabric includes a high-elastic fiber formula and a parallel bicomponent fiber formula, the parallel bicomponent fiber formula is made of the following raw materials in weight proportion: 95~99 parts of polypropylene, 0.5~1.5 parts of white masterbatch, 1~3 parts of lubricant and 3~5 parts of polybutylene succinate; the high-elastic fiber formula is made of the following raw materials in weight proportion, 66~72 parts of styrene-ethylene-butylene-styrene block copolymer, 27~34 parts of thermoplastic polyester elastomer TPEE, 1~3 parts of lubricant and 3~5 parts of polybutylene succinate; the polypropylene is homopolymer polypropylene or copolymer polypropylene. In the present invention, the addition of thermoplastic polyester elastomer TPEE not only improves the elasticity of the non-woven fabric, but also enhances the softness and air permeability of the non-woven fabric.

The invention relates to the technical field of new materials, in particular to biodegradable filter cloth and a preparation method thereof.The biodegradable filter cloth is prepared from, by weight, polybutylene terephthalate, modified starch, polybutylene adipate, bamboo fibers, maleic anhydride grafted polyolefin elastomer and a lubricant; through the synergistic effect of all the components and the preparation process, the performance of the filter cloth can be optimized, the component compatibility problem is solved through cooperation of the modified starch and the compatilizer, the uniformity and compactness of the material structure are guaranteed through the bamboo fiber pretreatment and gradient melting process, the pore characteristics of the filter cloth are optimized through the segmented spinning and weaving process, and the filter cloth has the advantages of being high in practicability and high in practicability. Finally, the filter cloth simultaneously has excellent mechanical properties, efficient filtering performance and good biodegradability, is suitable for industrial production, and has wide application prospects in the fields of industrial filtration, environment-friendly treatment and the like.

This invention belongs to the field of biomaterials and relates to a suture with immediate, sustained, and long-lasting analgesic function and its preparation method. The preparation method includes the following steps: using elastic fibers in a stretched state as the receiving substrate, electrospinning is performed on the fibers with an electrospinning solution containing analgesic drugs; the stretching force on the elastic fibers is then removed to obtain a yarn with a surface wrinkled topology; the yarn with the surface wrinkled topology is sequentially heat-set and cool-set to fix the surface wrinkled topology; the elastic fibers in the yarn with the surface wrinkled topology are extracted to obtain a hollow nanofiber; and the yarn is impregnated to obtain the suture with immediate, sustained, and long-lasting analgesic function. The prepared suture with immediate, sustained, and long-lasting analgesic function avoids the initial burst release of the drug, maintains the mechanical integrity of the suture, prevents knot slippage, displacement, and drug inactivation, and achieves the immediate, sustained, and long-lasting analgesic function of the suture.

The invention relates to the technical field of filter materials, and particularly discloses a glue-free preparation method of a stiff filter material for a filter cartridge. The preparation method comprises the following steps that fiber raw materials are subjected to opening, blending, carding, lapping and needling to form a filter material layer, and the fiber raw materials comprise ES fibers or at least two kinds of fibers with different melting points; performing spunlace reinforcement on the filter material layer to obtain a felt material; the felt material is heated, and when the fiber raw material comprises ES fibers, the felt material is heated to 130-150 DEG C; when the fiber raw material comprises at least two kinds of fibers with different melting points, heating the felt material to the temperature between the melting point temperatures of the two kinds of fibers with different melting points; and carrying out heat preservation and hot rolling for 30-60 seconds, and cooling to room temperature to obtain the stiff filter material for the filter cartridge. The preparation method provided by the invention avoids the problem of non-uniform absorption of the stiffening agent by the filter material possibly caused by the use of the stiffening agent, is helpful for keeping high stiffness and breaking strength of the filter material, and also improves the environmental protection property and simplicity of the preparation method.

The present application relates to the technical field of textile printing and dyeing, and more specifically, it relates to an auxiliary tool for tie-dyeing wool garments with bamboo knot patterns and a tie-dyeing method for wool garments with bamboo knot patterns. The auxiliary tool for tie-dyeing wool garments with bamboo knot patterns includes an outer tube, an inner tube and an elastic mesh bag. The inner tube is inserted into the outer tube and slidably cooperates with the outer tube. The elastic mesh bag is sleeved outside the outer tube and fits with the outer side wall of the outer tube. The elastic mesh bag is used to maintain the wool garment in a predetermined tie-dyeing state for dyeing. The tie-dyeing method for wool garments with bamboo knot patterns includes pre-dyeing preparation, dyeing and cleaning. The above-mentioned auxiliary tool is used in the pre-dyeing preparation step. On the one hand, the initial tie-dyeing state of each wool garment can be kept as consistent as possible. On the other hand, the tie-dyeing state of the wool garment during the dyeing process can be kept stable, thereby improving the problem of unstable and inconsistent patterns between wool garment pieces.

The invention provides a wool acetic acid intertwined composite yarn and a preparation method and application thereof. The wool and acetic acid intertwined composite yarn comprises inner-layer fibers and outer-layer fibers, the inner-layer fibers are of a core-spun structure with polyester filaments as core yarn and wool as a wrapping layer, and the outer-layer fibers are of a wrapping structure formed by wrapping diacetic acid filaments on the surfaces of the inner-layer fibers; wherein the wrapping density of the diacetate filaments is 5-15 circles / cm, the rotation angle is 20-60 degrees, and the outer layer coverage rate is 15-95%. The polyester filament yarn is used as the core yarn of the inner-layer fiber, the polyester core yarn is wrapped by the wool, the outer-layer diacetate filament yarn wraps the inner-layer fiber according to specific parameters, and the outer-layer diacetate filament yarn and the polyester filament yarn of the inner-layer fiber form a stable reinforced network, so that in the process that the yarn is subjected to tension, friction and tearing force, the yarn is not prone to deformation. The stress can be effectively dispersed and transmitted to the polyester core yarn, so that the overall breaking strength and the fatigue resistance of the composite yarn are greatly improved.

The invention discloses a flexible non-combustible fabric and a preparation method thereof, and the preparation method comprises the following steps: (1) adding non-combustible fiber and mixed fiber raw materials into a pretreatment mixed solution according to parts by weight, filling nitrogen, and maintaining for 30-40 minutes in a hydrothermal environment at 70-90 DEG C; (2) carrying out blowing, cotton carding, drawing, roving, spinning, doubling and twisting on the pretreated fiber raw material to prepare yarns, and weaving the yarns to obtain a basic fabric; and (3) shaping: desizing the basic fabric in water containing a cleaning agent at the temperature of 95 DEG C for 40-70 minutes, washing off slurry on the surface of the fabric, and then drying on a shaping machine at the temperature of 90-115 DEG C to obtain the flexible non-combustible fabric. The flexible non-combustible fabric prepared by adopting the method has the remarkable characteristics of non-combustion, non-shrinkage and non-dripping, also has the advantages of light weight and high strength, and is used for firefighter uniform, fire blanket, special protective clothing, seat cover cushions of transportation means, curtains and tablecloth in public places and the like.

The application discloses an ecological dyeing process for improving the dyeing performance of hemp fabric by using a natural mordant of plantain, and belongs to the field of textile ecological dyeing and finishing. The natural mordant is prepared from plantain which is widely available and low in cost through crushing, water bath extraction and solid-liquid separation, and is used in cooperation with three natural dyes, namely turmeric, cochineal and gardenia blue, to realize dyeing. Test results show that the process is green and environmentally friendly without adding heavy metals; the K / S value, color fastness and dyeing uniformity of the fabric can be significantly improved, the ultraviolet resistance and oxidation resistance of the fabric are effectively enhanced, and the excellent breaking strength, air permeability and moisture permeability of the fabric can be maintained. The process is suitable for industrial popularization because of easy availability of raw materials, simple operation and low cost.

The invention discloses a covalent cross-linked aramid nanofiber aerogel film as well as a preparation method and application thereof, and belongs to the technical field of thermal insulation materials and thermal insulation materials. The preparation method comprises the following steps: mixing aramid nanofiber sol and halogenated hydrocarbon, then carrying out covalent cross-linking, and then carrying out membrane scraping treatment, acid coagulation bath and water bath treatment to obtain a wet gel membrane; and then carrying out solvent replacement and drying to obtain the covalent cross-linked aramid nanofiber aerogel film. The mechanical property of the prepared CCAAM is effectively improved, nanofibers formed by crosslinking are stacked to form a compact hole wall, the breaking strength is improved, a hierarchical hole nanofiber skeleton honeycomb enables the CCAAM to have more deformability, the strain is improved, and meanwhile, the crosslinked aerogel film is effectively toughened.