36results about How to "Retain breathability" patented technology

The invention discloses a preparation method and application of a unilateral sensitive flexible film with a micro-nano composite structure. A hydrophobic microporous membrane is used as a substrate and a template, a surfactant is used as a structure regulator, and a protonic acid doped conductive polymer sensitive material with a nanoparticle structure is deposited on one side of the hydrophobic microporous membrane through an in-situ polymerization method to prepare the conductive polymer / microporous membrane composite flexible membrane. A gas or humidity sensor prepared by using the single-side sensitive flexible film with the micro-nano composite structure as a sensing element has the advantages of flexibility, bendability, breathability, health, sensitive response, simple process, low cost, good product consistency and repeatability and the like; the product can be applied to the fields of flexible electronic devices, wearable intelligent equipment, portable medical instruments and the like.

The invention relates to a production method of an argil flowerpot, which comprises the steps of raw material treatment, blank treatment and forming. Most of a raw material used is red soil; the material is convenient and economic; the mass production is facilitated; added glassy water facilitates forming of the argil flowerpot; a production process is simple; the fired flowerpot reserves air permeability of the argil; a mold shape can be adjusted to change a shape of the flowerpot in a forming process; the flowerpot is heated and then cooled naturally in a firing process; on the one hand, the energy consumption can be reduced; on the other hand, natural cooling can avoid influence of temperature jump on toughness of the flowerpot in the cooling process, so that the naturally cooled flowerpot is good in toughness and high in yield; the flowerpot is soaked in the glassy water in a coloring process; air holes in the surface of the flowerpot can be sealed temporarily to facilitate coloring; the flowerpot is colored uniformly; the surface is smooth and clean; and the manufacturing of the technical flowerpot is facilitated.

The invention relates to a preparation method for a protective structure of a concrete bridge anti-collision wall, which is applicable to the protective structure of the concrete bridge anti-collision wall and is also applicable to the protective structure of other concrete structures. The protective structure of the concrete bridge anti-collision wall consists of a permeable confining layer, an isolating layer and a surface coating, wherein the permeable confining layer adopts silane solution capable of permeating into 5-mm depth of the concrete structure surface layer, so the water absorbability of the concrete structure and the permeability of chloride are obviously reduced, and the original air permeability of the concrete structure is remained; and the isolating layer and the surfacecoating can prevent a corrosive medium from eroding and permeating the surface of the concrete structure. The construction process of the protective structure is simple, practical and convenient to use widely. An inorganic material and an organic material are combined together organically through chemical bonds under the action of silane and the isolating layer and the surface layer are provided,so that the effective protective structure is formed, the durability of the concrete is improved, the service life is prolonged, and considerable economic and social benefits are achieved.

The invention discloses a compounding method of hot air through nonwoven fabric and all cotton nonwoven fabric, and belongs to the technical field of nonwoven fabric production. The method comprises the following steps: taking hot air through nonwoven fabric as the bottom layer, laminating a nonwoven fabric-cotton mesh on the hot air through fabric, and carrying out pre-wetting and front-back spunlace laminating to obtain the product. According to the method, a spunlace method is used to replace chemical adhering to compound chemical fiber nonwoven fabric and all cotton spunlace nonwoven fabric; the advantages of all cotton nonwoven fabric such as softness, water absorbing property, breathability, and the like, are preserved, at the same time, the advantages of hot air through nonwoven fabric such as high filling power, good elasticity, soft hand feeling, strong warm keeping performance, air penetrating and water penetrating performance, and the like are also preserved; moreover, the glue leakage is prevented, and the peeling strength meets the requirement.

The invention relates to the technical field of a leather coating decoration method, and provides a coating decoration method for making high-grade waxing leather from low-grade leather with the advantages that the process is simple, the operation is convenient, used solvents have low toxicity, the natural attributives of softness, ventilation and the like of real leather are maintained, and the qualification rate is high. The method mainly comprises the following steps of leather blank preparation, defect repair, baking, plate pressing, polishing, mechanical foaming, falling, toggling, top coating, beating softening and sand plate pressing.

The invention relates to a collar, in particular to a cotton coated yarn collar and a production method thereof. The collar is woven by adopting the following components in percentage by weight: 52 to 56 percent of cotton yarns, 27 to 31 percent of polyester yarns and 15 to 19 percent of polyurethane coated yarns. Compared with the prior art, the invention has the advantages that: the polyester yarns and the polyurethane coated yarns with low cost are adopted for greatly substituting cotton yarns to weave the collar, and the performance of the produced cotton coated yarn collar is even superior to that of a pure cotton collar, so that the production cost of the collar is greatly reduced, the collar is hardwearing and durable, and the market competitiveness of the collar is improved; and proved by detection, the produced collar keeps the original appearance of the pure cotton collar, is close to the skin and comfortable, has thermal insulation property and air permeability, is light, elastic, stiff and smooth, and is not easily deformed or pilled.

The invention relates to the technical field of molding composite materials, in particular to a method for preparing a semi-impregnated prepreg and a prepreg structure. The method comprises the following steps: applying low-gram-weight glue to the first glue film; High grammage glue coating; attach the first glued film and the second glued film on both sides of the fiber layer, and perform hot pressing molding; attach the air-conducting layer to the hot-pressed first glued film. The present invention controls the gluing parameters when gluing the first adhesive film and the second adhesive film by improving the hot pressing process of the prepreg in the prior art, and forms the upper micro-wetting layer and the middle dry yarn layer And the structure of the bottom impregnated layer, and the micro-infiltrated layer has air permeability; compared with the existing technology, it retains the air-permeable continuity of the semi-impregnated prepreg base layer, and reduces the gas residue during the vacuum curing process of the thick product layup , and ensure the stability of the dry yarn in the semi-impregnated prepreg substrate, reducing the twisting, slipping and dispersion of the dry yarn during the laying process.

The invention relates to a manufacture method of coating for true leather transfering, which can be used in the leather precision work craft. The manufacture is: A, first use mending agent to scrape and mend the wound on the leather; B, the resin which can fuse below 130 DEG C is pressed on the thin film; C, spray the water resin fluid on the leather or the thin film coated with the resin in fog mode; D, between 100-110 DEG C temperature conditions, fold the thin film with the resin evenly on the leather, flat or roller press the resin layer with the pressure of 2 to 4 kilograms on to the leather and bond with it. Remove the plastic film to obtain the finished product.

The invention discloses glue for a cloth glue dispenser and a preparation method of the glue. The glue for the cloth dispenser is prepared from the following components in percentage by mass: 61.5 to62.0 percent of a polyurethane prepolymer, 26.0 to 26.5 percent of an ethylene vinyl acetate copolymer, 11.0 to 11.5 percent of tackifying resin, 0.2 to 0.4 percent of a filler and 0.1 to 0.3 percentof an auxiliary agent. The disclosed glue is suitable for an automatic cloth glue dispenser. The temperature and pressure needed in a mold pressing process are low, high temperature and high pressureare not needed, energy consumption can be further reduced, the production cost can be further reduced, damage to cloth is avoided, the problems that the cloth becomes hard and discolors due to high temperature do not exist, and the application range is wide. A whole garment product produced by the glue matched with an automatic cloth glue dispenser is free of any sewing stitches, more convenient to clean, comfortable, soft, good in hand feeling, good in air permeability, firm in bonding and good in stability, the overall production efficiency is improved, and then the production cost is reduced.

The invention discloses a high-strength waterproof and breathable composite dressing and a preparation method thereof, comprising an outer layer and an inner layer, the outer layer is a polytetrafluoroethylene film, the inner layer is a hydrogel, and the polytetrafluoroethylene film has a channel structure , the polytetrafluoroethylene film is compositely connected with the inner hydrogel by grafting a hydrophilic polymer compound. The composite dressing prepared by the present invention uses expanded polytetrafluoroethylene film as the outer layer structure, so that the dressing has good waterproof and antifouling properties, and its special pore structure can effectively prevent bacteria from penetrating into the wound and effectively prevent wound infection; at the same time, Wound exudate and sweat on the skin can also evaporate quickly through this special pore structure. This composite dressing retains the excellent properties of expanded polytetrafluoroethylene, making the dressing meet the needs of wound treatment under complex conditions on the battlefield and in the field.

The present invention relates to fabric processing, more specifically a flame-retardant breathable fabric and its preparation method, a preparation method of a flame-retardant breathable fabric, step 1: two flame-retardant fabrics I are wound on the feeding mechanism I, breathable The fabric is wound on the feeding mechanism Ⅱ, and the flame-retardant fabric Ⅱ is placed in the loading mechanism; Step 2: the smearing mechanism applies glue to the two flame-retardant fabrics Ⅰ, and the pushing mechanism pushes the end of the breathable fabric to the pressing mechanism On the lower side of Ⅰ, the shearing mechanism cuts it, and the pressing mechanism Ⅰ presses the cut breathable fabric between the two flame-retardant fabrics II; Step 3: The discharge mechanism pulls the gap between the two flame-retardant fabrics Ⅰ and The breathable fabric moves to the lower side of the pressing mechanism II, and the pressing mechanism II presses the flame-retardant fabric II in the charging mechanism between the two flame-retardant fabrics I and the front side of the breathable fabric; Step 4: pair the two The flame-retardant fabric I, the breathable fabric and the flame-retardant fabric II are stitched together to form a flame-retardant breathable fabric.