41results about How to "Good vapor permeability" patented technology

The present invention relates to a preparation process of breathable fire-retardant oil-proofing water-proofing acid-proofing and anti-near-infrared polyester sailcloth. Said preparation process includes the following several steps: firstly, making permanent flame retardant treatment of polyester sailcloth, said permanent flame retardant treatment includes padding and baking, baking temperature is 170 deg.C-200deg.C, baking time is 1-10 min, coating flame retardant PU coating adhesive, making water-proofing and acid-proofing treatment, drying and baking for 1-10 min, at 170-230 deg.C, then making permanent flame retardant of base cloth, dyeing, coating flame retardant PU coating adhesive, making water-proofing, oil-proofing and acid-proofing treatment.

The present invention relates to a method for making an open celled microcellular foam comprising providing at least one foamable polymer and a crosslinking agent in an extruder, injecting at least one blowing agent into said at least one foamable polymer and said crosslinking agent in said extruder, blending said blowing agent injected into said at least one foamable polymer and said crosslinking agent in said extruder, feeding said blended blowing agent, at least one foamable polymer and said crosslinking agent in said extruder to a die, and depressurizing said blended blowing agent, said at least one foamable polymer and said crosslinking agent.

The invention mainly discloses a method for processing non-woven wall fabrics. The method includes steps of firstly, processing polypropylene or polyester spun-bonded non-woven fabrics; secondly, printing design patterns on the polypropylene or polyester spun-bonded non-woven fabrics; and thirdly, coating movable gum on back surfaces of the spun-bonded non-woven fabrics by a coating technique by the aid of a scraper. A technique for processing the polypropylene or polyester spun-bonded non-woven fabrics includes adding environment-friendly polypropylene flame-retardant master batches with the mass percent of 0-10% into polypropylene or polyester processed raw materials; mixing the environment-friendly polypropylene flame-retardant master batches and the polypropylene or polyester processed raw materials to obtain mixtures, and performing melt extrusion on the mixtures by a large screw; filtering the extruded mixtures by a filter which is a metal screen with 600-1200 meshes to obtain melt; quantitatively outputting the melt at the speed of 80-400 liters per hour by a metering pump; spinning the melt to obtain fibers; cooling the fibers by air; drafting the fibers by air flows; and forming nets of net curtains. The method has the advantages that new products manufactured by the method are excellent in flame-retardant effect, high in vapor permeability, convenient to assemble and disassemble and low in cost, and the like.

The invention is a moisture-permeable, vapor-transmitting, comfortable yarn, composed of a core layer and a winding layer outside the core layer, and its characteristic: the winding layer adopts a fabric of circular-section terylene and viscose rayon; the core layer adopts a H-shaped section terylene filament yarn. It has strong liquid water-conductivity and moisture-permeability comfort functions, and improves the vapor transmission and has strong vapor-transmission comfort functions, and thus the knitted fabrics by it are quickly dried, and worn dry-smoothly and comfortably; because bending elastic modulus is small, the yarn is soft and chemical fibre feeling is reduced, the feeling comfort property of the knitted fabrics by it is improved. The knitted fabrics by it can meet the requirements of work clothes and sport suits on conditions of plenties of sports and largely sweating, and be used in sportswear, and their moisture-permeable and vapor-transmitting comfort functions and feeling comfort functions are all completely good, and it has wide application prospect.

The invention relates to a water-based super-fogging super-blackening treating agent for synthetic leather, and the water-based super-fogging super-blackening treating agent is applied to a later period technology of the synthetic leather. The water-based super-fogging super-blackening treating agent is prepared from water-based resin, a water-based dispersing agent, a defoaming agent, silicon dioxide matting powder, a wetting agent, a Deuchem thickening agent and water. The invention further relates to a preparation method of the water-based super-fogging super-blackening treating agent for the synthetic leather. According to the water-based super-fogging super-blackening treating agent, all the components cooperate with one another and interact with one another, the synthetic leather is unique in handfeel after being treated, and the synthetic leather treated by the treating agent is natural in gloss, clear in color and luster, better in color developing and excellent in comprehensive effect, meanwhile, a prepared spraying dilute solution has the very good storage stability, and pigments are not prone to sedimentation. The water-based super-fogging super-blackening treating agent for the synthetic leather is a novel material in later period treatment and can be applied to an existing synthetic leather production line, the technology is simple, production equipment does not need to be changed, and the production cost cannot be increased.

The invention discloses a temperature-adjustable thermostatic pad warm in winter and cool in summer. The thermostatic pad comprises a substrate and a temperature adjusting pad, wherein the temperature adjusting pad is a grooved three-dimensional fabric; one or more uniformly arranged grooves are formed in the bottom of the temperature adjusting pad; phase change material bags are placed in the grooves, and are sealed and packaged by adopting a high-strength flexible material; heating units are arranged at the bottoms of the phase change material bags. According to the thermostatic pad, a phase change material can change between a high-energy state and a low-energy state in the presence of the heating units and an air conditioner, so that the micro-climatic environment around a human body can be kept within a relatively constant and proper temperature range in different environments through the thermostatic pad, the requirement of the human body on comfort is met, and the thermostatic pad has warm keeping and cooling functions; necessary elasticity and support force are provided by a high-bending rigidity fiber layer of the raised part in the three-dimensional fabric, so that good pressure spreading effects are achieved, and the phase change material bags in the grooves can be protected; sufficient pores are formed in the raised part of the grooved three-dimensional fabric, so that high air permeability is ensured.

This invention relates to a yarn which has the function of wet conduction and permeability and comfortable contact function and its production method includs adopting blend spinning of round section terylene, cotton fiber or viscose fiber and H section terylene to produce blend yarns, specifications of the raw materials and the optimum weight ratio are : 9 - 11 dtex fine round terylene 15 - 20% cotton or viscose fibers 10 -30%, 17 - 22 dtex, H section terylens fibers 55 - 70%.

The invention relates to a water-based polishing treatment agent for synthetic leather. The water-based polishing treatment agent is applied to the back-end process of the synthetic leather and comprises components as follows: water-based resin, a water-based dispersing agent, a defoaming agent, silica matting powder, a water-based brightener, a wetting agent, a Deuchem thickening agent and water. The invention further relates to a preparation method of the water-based polishing treatment agent for the synthetic leather. All components of the water-based polishing treatment agent coordinate with one another and have the combined action, the synthetic leather is unique in hand feeling after treatment and has the advantages of avoidance of cracking during baking at the high temperature and the like, meanwhile, a prepared spraying diluted solution has the good storage stability, a pigment does not deposit easily, and the leather treated with the treatment agent has the natural gloss, the clear color, the good color developing property and the good comprehensive effect. The water-based polishing treatment agent for the synthetic leather is a novel material for back-end treatment and can be applied to an existing synthetic leather production line, the process is simple, production equipment is not required to be changed, and the production cost cannot be increased.

The invention discloses a medical bandage with a hydrogel antibacterial layer. The medical bandage is provided with three layers. The lower surface layer is made of hydrogel, fits the skin and can sterilize and dry a wound. The middle layer contains modified bamboo charcoal fibers, has good permeability, improves the use comfort of a patient, synergizes with the hydrogel layer, and has excellent antibacterial effect. The upper surface layer is a medical pressure sensitive adhesive, is convenient in bonding and avoid troubles caused by knotting. Berberine and aloe vera gel are added into the hydrogel layer so as to improve the antibacterial and anti-inflammatory effects of the hydrogel and effectively prevent the wound from infection and inflammation. Nanometer titanium dioxide and grapheneoxide are used to modify the bamboo charcoal fibers, and so the compatibility between the bamboo charcoal fibers and a base fabric substrate is enhanced, the mechanical properties and vapor permeability of the bandage are enhanced, and the hydrogel antibacterial layer is synergized to against bacteria from inside to outside, which makes the antibacterial effect remarkable.

The invention relates to a multifunctional polyacrylate nano composite coating agent and a preparation method thereof. The multifunctional polyacrylate nano composite coating agent is prepared from the following raw materials: solid inorganic nanoparticles, a dispersing agent, deionized water, an olefine acid monomer, an olefine acid ester monomer, a vinyl imidazole ionic liquid monomer, an emulsifier and an initiator. The olefine acid monomer, the olefine acid ester monomer and the vinyl imidazole ionic liquid monomer are subjected to free radical emulsion polymerization under the action of the emulsifier and the initiator to form the composite coating agent. According to the composite coating agent, solid inorganic nanoparticles formed by nano aluminum oxide, nano zirconium hydroxide ornano hydroxyapatite are introduced into a polypropylene ester copolymer system, and the nanoparticles are used as a reinforcing material so that the tensile strength of a coating film is remarkably improved. Meanwhile, after the coating agent forms a film, a porous network structure can be formed on the surface of the leather so that the air permeability and the air permeability of the coated leather can be improved, and the leather is endowed with lasting antibacterial ability.

The invention relates to a water-based skin-feeling treating agent for synthetic leather, and the water-based skin-feeling treating agent is applied to a later period technology of the synthetic leather. The water-based skin-feeling treating agent is prepared from water-based skin-feeling resin, a water-based thickening agent, a defoaming agent, a levelling agent, water and a water-based skin-feeling hand feeling agent. The invention further relates to a preparation method of the water-based skin-feeling treating agent for the synthetic leather. According to the water-based skin-feeling treating agent, all the components cooperate with one another and interact with one another, the synthetic leather is unique in handfeel after being treated, and the synthetic leather treated by the treating agent has the feeling of the baby skin and is clear in color and luster and excellent in comprehensive effect; meanwhile, a prepared spraying dilute solution has the very good storage stability, pigments are not prone to sedimentation, and the resin has the matting property and the better handfeel, so that gas-phase silicon dioxide matting powder does not need to be additionally added in the preparing process. The water-based skin-feeling treating agent for the synthetic leather is a novel material in later period treatment and can be applied to an existing synthetic leather production line, the technology is simple, production equipment does not need to be changed, and the production cost cannot be increased.

The invention discloses an aerogel filled structure for bedding and clothing. The aerogel filled structure comprises a breathable fabric and/or breathable film and aerogel large particle monomers and/or aerogel small particle aggregates; the aerogel large particle monomers comprise aerogel large particles and coating layers coating the aerogel large particles; the breathable fabric and/or breathable film completely coats a plurality of aerogel large particle monomers and/or the aerogel small particle aggregates; the sizes of the aerogel large particle monomers and/or the aerogel small particleaggregates are greater than that of breathable gaps and needle holes of the breathable fabric and/or breathable film. The aerogel filled material disclosed by the invention is prepared into clothingand bedding to realize the advantages that excellent heat insulation performance and high body fitness are achieved; a free air layer inside clothing is reduced or even eliminated and further the insulation performance is improved; the phenomenon that powder falls from aerogel is avoided and health hazard to a user is avoided; in addition, the phenomenon that the heat insulation performance gets poorer due to the reduction of the aerogel caused by powder falling is prevented; besides, the clothing and bedding have the characteristics of breathability, no stuffiness and high comfortableness.

The invention discloses a polylactic acid fiber diversion layer material and a preparing method thereof, and relates to the field of disposable hygienic products. The preparing method of the polylactic acid fiber diversion layer material comprises the steps of choosing polylactic acid fiber with different thicknesses and different crimpness, reasonably matching hydrophilic polylactic acid fiber and hydrophilic foam adhesive, reasonably exerting two technologies of hydrophilic foam adhesion and water repellency layer treatment, and well controlling fiber web hot air drying and contact type heat setting processing technological parameters. Therefore, the technical problems of the diversion layer material are solved that the diversion performance is poor, the liquid storage capability is low and the preparing technology is complicated, the effects are achieved that the prepared polylactic acid fiber diversion layer material has comprehensive performance of excellent diversion, moisture vapor transmission, instantaneous adsorption, good stiffness, an antibacterial activity, biodegradation and the like, and the functional requirements of the diversion layer material adopted by the disposable hygienic products for comprehensive diversion, instantaneous adsorption, obstruction and temporary storage for liquid are fully met.

The invention discloses a preparation method and equipment of a degradable environment-friendly packaging material for food contact. The preparation method comprises the following steps: S1, preparingalkylated nanocellulose; S2, preparing a chitosan solution; S3, preparing a gallic acid chitosan solution; S4, preparing a chitosan film; and S5, carrying out physical modification on the chitosan film. The equipment comprises a stirrer body. A supporting rod is fixedly installed at the position, close to one end, of the outer surface of the upper end of the stirrer body. A transverse plate is fixedly installed on the outer surface of the top end of the supporting rod. A movable groove is formed in the outer surface of the end, away from the supporting rod, of the transverse plate. By improving the formula, process and equipment, production can be completed by adopting one piece of integrated equipment, the integration degree is high, the occupied area is small, the equipment investment is small, and the cost is low. According to the invention, the light transmittance, tensile strength, elongation at break and natural degradation rate of the chitosan film can be improved, the equilibrium moisture absorption rate of the chitosan film can be reduced, and the water resistance of the chitosan film can be improved.

The invention provides aqueous high-gloss gloss oil used for artificial leather, which is used in after processes of the artificial leather and includes the following components: BG-AA diol being 1000 in molecular weight, DMPA, BDO, reactive dimethyl silicone oil, IPDI, acetone, triethylamine, ethyl diamine, water, an aqueous defoamer, a flatting agent and a thickening agent. The invention also provides a preparation method of the aqueous high-gloss gloss oil used for the artificial leather. The components in the aqueous high-gloss gloss oil cooperate and achieve synergistic effects, so that the aqueous high-gloss gloss oil can achieve a unique hand filling after treatment, is high in gloss and transparency, can form a clear color and has excellent comprehensive effects. A diluted solution for spray coating is excellent in storage stability and pigments are not liable to deposit. The aqueous high-gloss gloss oil is a novel material for after processes of the artificial leather, can be used in an artificial leather production line in the prior art, is simple in preparation process and is free of change on production equipment, and is free of increase on production cost.

The invention relates to a progressive-temperature-control fireproof separation board (NCB module). Thermal insulation and template functions are integrated in the board. With the board, an existing external thermal insulation system is changed, safety and shock resistance of the system are improved, and service life of a thermal insulation system is prolonged. The board is water-resisting and fire-resisting, and is not restricted by construction height and shape. The board can be used for replacing building external templates. Also, an over-coating layer can be manufactured according to a certain design, such that thermal insulation decoration and the template functions are integrated. The board is advantaged in good gas permeability, such that a mould multiplying environment is eliminated. The board is also advantaged in low temperature amplitude, high environment comfortableness, convenient construction, less processes, low labor intensity, short construction time, and the like.

The invention relates to a waterborne light-curing oil treating agent for synthetic leather and a preparation method of the waterborne light-curing oil treating agent. The waterborne light-curing oil treating agent for the synthetic leather comprises the following components: waterborne resin, a defoamer, a wetting agent, a Deqian thickening agent, BCS and water. Various components of the waterborne light-curing oil treating agent for the synthetic leather cooperate with one another and interact, and after being treated, the synthetic leather feels unique, and does not crack after being baked at high temperature. Meanwhile, a prepared spraying dilute solution has good storage stability, pigment cannot settle easily, and the leather manufactured by using the treating agent is natural in gloss, clear in color and luster, good in color developing and good in comprehensive effect.

The invention belongs to the field of building energy conservation and particularly relates to a greening phase-change box. The greening phase-change box comprises a flowerpot, a tray and an energy storage plate, wherein the flowerpot, the tray and the energy storage plate are connectedly and vertically assembled and internally provided with a phase-change material by laying. By laying of the phase-change material in the flowerpot, the tray and the energy storage plate, when the external temperature changes, a roof heat insulation effect is achieved through the phase-change material which absorbs or releases heat. Special planting soil can be laid on the phase-change material of the flowerpot, crassulaceae such as sedum makinoi or araceae perennial herbaceous plants can be planted for greening a roof environment, the phase-change material in the flowerpot plays a role in water storage, and plant root growth is promoted. A lightweight planting roof heat insulation and preservation system can be formed by assembly of multiple greening phase-change boxes according to the roof design.

The invention discloses a preparation method of crease-free superfine fiber synthetic leather based on thermal expansion microspheres. The method is characterized in that the prepared thermal expansion microspheres are dispersed in water-borne polyurethane, fibers of superfine fiber non-woven fabric are filled with the thermal expansion microspheres through dipping, and after solidification and microsphere foaming, the superfine fiber synthetic leather is prepared through decrement and subsequent coating processing. The prepared superfine fiber synthetic leather has good pressing resilience, fullness and softness, base cloth and finished leather are free of creases, and compared with superfine fiber synthetic leather without thermal expansion microspheres, the leather has the advantages that thickness can be increased by 30%-70%, the softness can be increased by 30%-60%, and the water vapor permeability is increased by 100%-150%.