18results about How to "Good moisture permeability" patented technology

The application discloses an integrated stretchable flexible wearable biosensor and a preparation method thereof, and belongs to the technical field of electrochemical sensing.The integrated stretchable flexible wearable biosensor is wrapped by a PAN / SiO2 sweat absorption layer.The method comprises the following steps: preparing a stretchable conductive composite fiber; preparing an integrated stretchable flexible sensing fiber; preparing a PAN / SiO2 sweat absorption layer; and preparing a sensor.The conductive composite fiber in the application can maintain stable performance under multiple bending and twisting, the sensor is integrated with a flexible integrated circuit chip and a flexible power supply device to obtain a fabric sensing system, the fabric sensing system can process acquired sensor data, and the detection data can be uploaded to a mobile terminal and a cloud end in real time through Bluetooth technology, real-time monitoring and management of a health condition of the biosensor are realized, six specific biomarkers can be efficiently detected by using only 1 muL of sweat, the amount of sweat required for activating the biosensor is 1 / 3 of that of the prior art, and the fabric sensing system can easily adapt to a tensile strain caused by exercise.

The invention discloses a piezoelectric film with bionic textures and a preparation method and application thereof, the piezoelectric film is formed by directionally stacking and depositing fibers with core-shell structures, the piezoelectric film has a gully-bulge alternating bionic morphology imitating human skin surface textures, and the aperture of the piezoelectric film is gradually increased from an attachment surface in the thickness direction; the fiber having the core-shell structure comprises: a core layer having a porous structure and containing modified molybdenum disulfide and polyester; the shell layer wraps the core layer, and the shell layer contains collagen; the piezoelectric film comprises a sensing unit area and a flexible connection area, the collagen crosslinking degree of the sensing unit area is larger than 75%, and the collagen crosslinking degree of the flexible connection area is 40%-55%. Under the synergistic effect of materials and structures, the piezoelectric film not only has a high piezoelectric constant, but also shows excellent mechanical properties, air permeability and moisture penetrability, and has wide application prospects in the fields of electronic skin, health monitoring and the like.

The utility model relates to a kind of multifunctional anti-uv fabric, including woven body and single-side moisture absorption finishing layer, the woven body is formed by warp and weft interlacing, the warp and weft are all using anti-uv cool yarn and the cross-sectional shape of the anti-uv cool yarn is a cloud section of a word and forms wet guide furrow on surface, the DPF value of the warp and weft is less than 1, the single-side moisture absorption finishing layer is obtained by spraying moisture absorption finishing liquid on the outer surface of woven body and setting finishing.The utility model is endowed with good anti-uv and cool feeling by anti-uv cool yarn, and combined with the wet guide furrow and the moisture absorption gradient of the surface of anti-uv cool yarn, it is endowed with good one-way wet guide and moisture absorption perspiration performance of fabric.

This invention discloses a method for manufacturing a fluorine-free water-repellent upper. The method includes: providing a waterproof layer woven from yarn treated with fluorine-free waterproofing; providing an inner lining layer knitted from cotton blend yarn; sewing multiple deformation-resistant yarns to the surface of the waterproof layer, extending the yarns from the forefoot area to the heel area; overlapping and fixing the waterproof layer and the inner lining layer to form the upper body; and fixing a waterproof and breathable membrane to at least a portion of the outer surface of the waterproof layer to obtain the finished upper. This invention solves the problems of environmental pollution, performance degradation after washing, and easy pore expansion and water seepage in existing water-repellent upper treatments by combining the sewing and fixing of deformation-resistant yarns with fluorine-free waterproofing. It has the advantages of being environmentally friendly, providing long-lasting water repellency, and having strong deformation resistance.

This invention discloses a motion-responsive waterproof and breathable crimped fiber membrane, its preparation method, and its applications. The fiber membrane is a composite fiber membrane composed of nanofibers, which include polyurethane, a low-elasticity fluorine-free polymer, and polydimethylsiloxane. The fiber membrane has a three-level elastic structure. In its unstretched state, the fiber membrane has a first average pore size of 0.3 μm ≤ D1 ≤ 1.2 μm and a first moisture permeability. When subjected to a tensile strain of 20%–50%, it has a second average pore size of 1.2 μm < D2 ≤ 2.5 μm and a second moisture permeability, with the second moisture permeability being higher than the first. This invention achieves, for the first time, a direct response of the fiber membrane to mechanical motion, i.e., waterproof in static conditions and highly permeable in dynamic conditions. It possesses advantages such as being fluorine-free and environmentally friendly, dynamically breathable, and highly resilient, and has broad application prospects in outdoor sportswear, medical protective equipment, aerospace, and other fields. The preparation of this fiber membrane requires no post-processing or additional processing steps, and the process is simple and highly controllable.

The utility model discloses a flame -retardant heat -insulation waterproof moisture -permeable fabric, including polytetrafluoroethylene moisture -permeable membrane, first flame -retardant fiber water -jet felt and second flame -retardant fiber water -jet felt, polytetrafluoroethylene moisture -permeable membrane with first flame -retardant fiber water -jet felt between, through first point shape flame -retardant adhesive and stick together, first flame -retardant fiber water -jet felt with second flame -retardant fiber water -jet felt between, through second point shape flame -retardant adhesive and stick together, wherein, second flame -retardant fiber water -jet felt has multiple pinholes of array, to increase the moisture -permeability of fabric. The utility model discloses a flame -retardant heat -insulation waterproof moisture -permeable fabric, polytetrafluoroethylene moisture -permeable membrane, first flame -retardant fiber water -jet felt and second flame -retardant fiber water -jet felt three layer materials and stick together, second flame -retardant fiber water -jet felt has multiple pinholes of array, and the whole fabric heat protection performance (TPP) is good, and the moisture -permeability is high, and has the function of moisture absorption and sweat -releasing.

The utility model discloses a kind of machine washable real silk fabrics, including by surface layer warp yarn and surface layer weft yarn interwoven surface layer fabric, by inner layer warp yarn and inner layer weft yarn interwoven inner layer fabric, surface layer fabric and inner layer fabric are connected by connecting warp yarn;The surface layer warp yarn and surface layer weft yarn include first yarn, and inner layer warp yarn and inner layer weft yarn all include m root: the first yarn and second yarn of m root arrangement;First yarn includes mutually twisted real silk yarn and triacetate fiber yarn, and second yarn includes mutually twisted real silk yarn and chinlon filament;M is the minimum weft yarn cycle number;Twist of triacetate fiber yarn is 1000-1200 twist per meter;Connecting warp yarn is wet-conducting chemical filament;High-twist triacetate fiber yarn and real silk fiber yarn are mutually twisted in surface layer fabric, and the wrinkle recovery effect of fabric can be improved after washing.And the use of wet-conducting chemical filament can improve the wet effect of fabric.

The application discloses a kind of strong waterproof high moisture-permeable jacket fabric and preparation method thereof, it is related to fabric technical field.The preparation includes the following steps: step 1: the preparation of TPU film: the spinning solution A and spinning solution B containing different porous chitosan microspheres proportion are formulated;Spinning solution A is spun, and inner layer is obtained;Aldehyde group modified porous chitosan microspheres solution is coated on one side thereof, with the coating surface as receiving layer, spinning solution B is spun on the surface thereof, and outer layer is obtained, dried to obtain composite base film;The composite base film is placed in keratinase solution, pretreated;Then 3-sulfopropyl acrylate potassium salt mixed solution is coated on the surface of outer layer, and ultraviolet light is irradiated at room temperature;Immersed in deionized water, dried to obtain TPU film;Step 2: TPU film is hot-pressed with shuttle fabric to obtain jacket fabric.

This invention discloses a composite fiber nonwoven mask fabric and its preparation method, belonging to the technical field of nonwoven mask fabrics. It includes the following raw materials: ramie fiber, seaweed fiber, fish scale collagen peptides, polyethylene oxide, sodium alginate, *Acetobacter xylinum*, and gelatinized starch. Through the above method, the composite fiber nonwoven mask fabric of this invention uses ramie fiber and seaweed fiber to prepare a breathable and moisture-permeable mask substrate. A spinning solution is prepared using fish scale collagen peptides, polyethylene oxide, sodium alginate, and gelatinized starch. The spinning solution is mixed with a fermentation broth prepared by *Acetobacter xylinum*, and the fermentation broth and spinning solution are modified. Finally, the modified spinning solution is composited with the mask substrate to obtain a composite fiber nonwoven mask fabric with high liquid retention, good average breathability, good moisture permeability, and good water retention.

The present application relates to the technical field of layered materials, and particularly relates to a crosslinked moisture-permeable polyurethane transfer film and a preparation method thereof.The crosslinked moisture-permeable polyurethane transfer film comprises a base film layer, a polyurethane transfer layer and an adhesive layer, the polyurethane transfer layer is located on one side of the base film layer, and the adhesive layer is located on the other side of the polyurethane transfer layer; wherein the polyurethane transfer layer is coated on the surface of the base film layer by polyurethane mixed solution and is formed by light curing, and due to the introduction of hydrophilic groups, ultraviolet-resistant components and antioxidant components in the polyurethane emulsion, the polyurethane transfer layer has good moisture-permeable performance and yellowing resistance.

This invention discloses a waterproof and UV-resistant outdoor fabric, which is composed of a base fabric and a functional film bonded together with an adhesive. The surface of the base fabric is provided with a waterproof and UV-resistant functional layer. The preparation method of the waterproof and UV-resistant outdoor fabric is as follows: 1) A waterproofing agent layer is applied to the base fabric: ① Prepare a waterproof and UV-resistant finishing solution; ② Immerse the base fabric in the waterproof and UV-resistant finishing solution, performing two dips and two nips; ③ Dry and bake to form a waterproof and UV-resistant functional layer on the surface of the base fabric; 2) The base fabric is bonded to the functional film: ④ Apply an adhesive to the surfaces of the base fabric and the functional film; ⑤ The fabric and film are flatly stacked together and then transferred to a heat press for heat pressing to complete the hot-press lamination, thus obtaining the waterproof and UV-resistant outdoor fabric. The waterproof and UV-resistant outdoor fabric of this invention has good waterproof, UV-resistant, and moisture-permeable functions.

The invention provides a high-performance electromagnetic shielding printed and dyed fabric and a preparation method thereof. The preparation method comprises the following steps: printing and curing MXene-based electroactive ink on a fabric substrate by adopting a screen printing process, and forming an electromagnetic shielding functional layer on the surface of the fabric substrate; wherein the MXene-based electroactive ink is prepared from an MXene nanosheet, an adhesive, a thickening agent and water. The high conductivity of the MXene nanosheets is utilized to construct a shielding network, the MXene nanosheets are fixed on the surface of the fabric substrate through the aqueous binder and the thickening agent in a silk-screen printing mode, efficient shielding is achieved, meanwhile, the inherent comfort and durability of the fabric are achieved, the shielding effect of the prepared printed and dyed fabric reaches 30 dB or above, oxidation is not likely to happen, the washing fastness is high, and the service life of the fabric is prolonged. The air permeability, the moisture permeability and the softness are excellent.

The present application relates to the technical field of high polymer materials, in particular to a kind of insole rubber composite modified material and preparation method thereof.The insole rubber composite modified material of the present application is prepared by natural rubber, styrene-butadiene rubber, zinc oxide, stearic acid, antioxidant, filler and halloysite nanotube loaded with blowing agent etc. through banburying process;The halloysite nanotube loaded with blowing agent is obtained by chlorination of halloysite nanotube first, then reacting with dimethylallylamine and 4-(dimethylamino) benzenesulfonic acid, and finally loading blowing agent.The present application realizes the stable crosslinking network of modified nanotube and rubber matrix through the synergistic effect of chemical bonding and electrostatic adsorption, and realizes the site loading of blowing agent, solves the technical problem that traditional insole material cannot consider high toughness and breathable comfort.

This invention discloses a TPU breathable membrane, its preparation method, and its application, belonging to the field of TPU breathable membrane preparation technology. The TPU breathable membrane comprises the following components by weight: 60-80 parts TPU particles, 10-20 parts polyethylene glycol, 3-5 parts isocyanate, 5-15 parts zinc stearate, 5-10 parts EVA, 5-18 parts polymeric modifier, 2-6 parts nano-silica, 0.8-1.2 parts lubricant, 0.4-1.1 parts stabilizer, 0.4-0.9 parts anti-hydrolysis agent, and 1-1.5 parts antioxidant. The TPU breathable membrane prepared using the above substances exhibits excellent moisture permeability, flexibility, and durability.

This application relates to the textile field, specifically disclosing a thermal insulation fabric and its production method. The thermal insulation fabric comprises, from the outside in, a PTFE garment film, an adhesive layer, a polyethersulfone / polyurethane mixed fiber wadding, a hollow PBT core-sheath composite fiber layer, an adhesive layer, and a polyurethane / zirconia aerogel composite fiber layer. The polyurethane / zirconia aerogel composite fiber layer is woven from polyurethane / zirconia aerogel composite fibers, which have a core-sheath structure. It is prepared by coaxial wet spinning of the sheath solution and the core solution, followed by impregnation in a tert-butanol aqueous solution, pre-freezing, and freeze-drying. The sheath solution is a polyurethane solution, and the core solution is a polyurethane solution containing zirconia aerogel powder, with a mass ratio of zirconia aerogel powder to polyurethane of 0.2-0.3:1. The thermal insulation fabric of this application has the advantages of good thermal insulation effect, high mechanical strength, high compression resilience, and relatively fluffy texture.

The present application relates to the technical field of wet micro-porous membrane, in particular to a wet micro-porous membrane based on direct coating of base cloth and a preparation method thereof. The wet micro-porous membrane comprises the following steps: introducing hydrophilic modified carbon particles in a specific proportion into a bio-based polyurethane slurry as phase separation induced crystal nucleus; making the elastic base cloth run flat under a micro-tension state through linkage of a first constant tension unit and a second constant tension unit; immersing the base cloth into a coagulation tank after direct coating of the slurry on the surface of the base cloth in situ, and using directional aggregation of water molecules to the surface of the carbon particles to induce formation of a micro-porous structure; then performing low-stress high-temperature anchoring drying at 160-170 DEG C; and finally winding and separating the membrane. The present application realizes the synergy of micro-induction pore formation of the material and mechanical pressure release in the whole process, and the prepared micro-porous membrane integrates ultra-high moisture permeability, high water pressure resistance, super-soft hand feeling and low-carbon environmental protection.

The utility model provides a thermal storage thermal insulation composite fabric which comprises an electrostatic spinning composite fiber layer and a windproof and moisture permeable layer, the electrostatic spinning composite fiber layer comprises a thermal insulation hydrophobic film used for being attached to human skin and a hydrophilic film arranged between the thermal insulation hydrophobic film and the windproof and moisture permeable layer, a plurality of perspiration through holes are evenly distributed in the thermal insulation hydrophobic film, and the hydrophilic film is arranged between the thermal insulation hydrophobic film and the windproof and moisture permeable layer. A plurality of sweat-absorbing through holes are evenly distributed in the hydrophilic film, the hole diameter of the sweat-absorbing through holes is larger than that of the sweat-discharging through holes, the sweat-absorbing through holes and the sweat-discharging through holes are at least partially overlapped, and the porosity of the hydrophilic film is larger than that of the heat-preservation hydrophobic film so that a directional moisture guiding channel can be formed, and a hydrophilic anti-static layer is arranged on the side, close to the windproof and moisture-permeable layer, of the hydrophilic film. By the adoption of the structure, the electrostatic spinning composite fiber layer achieves one-way moisture conduction through the stepped hole design, meanwhile, the heat preservation hydrophobic film is of a submicron porous structure, air flowing can be effectively limited, and therefore heat loss is reduced, the heat preservation effect is achieved, and the moisture conduction effect can be achieved.

This invention discloses a unidirectional moisture-wicking fabric and its weaving process, comprising a surface layer and an inner layer arranged sequentially from the outside to the inside. The surface layer includes an outer surface layer and an inner surface layer, the inner surface layer including mesh and a base. The inner layer includes a first region and a second region, with the mesh located above the first region. The inner surface layer and the inner layer form a cavity. The two second regions protrude upwards to form triangular apexes, and the inner layer is bonded to the base through the triangular apexes. This invention changes the cross-sectional shape of the fiber by altering the yarn fineness and increasing the yarn twist, thereby increasing the moisture-wicking properties of the fiber. Furthermore, the weaving structure increases the size and arrangement of the internal gaps of the multi-layered fabric, which is beneficial for moisture wicking. Finally, by changing the fabric density and weaving structure, it modifies traditional auxiliary fabrics, thereby increasing the fabric's stability and washability.