10results about How to "Reduce air permeability" patented technology

The utility model discloses a breathable T-shirt capable of removing peculiar smell, which belongs to the technical field of clothes and comprises a shirt body and sleeves, breathable nets are arranged on the inner sides of the shirt body and the sleeves, the positions of the breathable nets correspond to the armpits of a human body, one end of each breathable net extends to a cuff along the corresponding sleeve, and the other end of each breathable net extends to a lower hem along the shirt body. Flow channels are formed between the breathable net and the clothes body and between the breathable net and the sleeves. According to the breathable T-shirt capable of removing the peculiar smell, breathability and heat dissipation of the armpits are improved, and the influence of sweat on breathability is reduced.

The present application relates to volatile gas treatment technical field, disclose a kind of organic liquid volatilization inhibitor and the method for inhibiting organic liquid volatilization.The organic liquid volatilization inhibitor contains hollow microsphere, surfactant, stabilizer, dispersant, coupling agent and solvent, for inhibiting organic liquid volatilization;Wherein, the density of the organic liquid volatilization inhibitor < the density of the organic liquid.The density of the organic liquid volatilization inhibitor provided by the present application is less than volatile liquid, with certain fluidity and stability, can realize the automatic covering and complete sealing to volatile organic liquid surface, effectively prevent organic liquid volatilization during storage, loading and transportation.

The invention provides a jujube fruit cracking prevention film agent as well as a preparation method and a use method thereof.The jujube fruit cracking prevention film agent is prepared from the following raw materials in parts by mass: 1-5 parts of a polyvinyl alcohol solution, 1-5 parts of a polyacrylamide solution and 0.5-1 part of a modified oxidized humic acid solution; wherein the polyvinyl alcohol solution is prepared from the following components in parts by mass: 1 to 5 parts of polyvinyl alcohol, 0.1 to 0.5 part of cross-linking agent and 50 to 120 parts of water; the polyacrylamide solution is prepared from the following components in parts by mass: 1 to 5 parts of polyacrylamide, 0.1 to 1 part of hydrophobic monomer and 80 to 150 parts of water; the modified oxidized humic acid solution is prepared from the following components in parts by mass: 1 to 2 parts of modified oxidized humic acid, 0.05 to 0.1 part of calcium salt, 0.05 to 0.1 part of phosphorus salt, 0.05 to 0.1 part of silicon fertilizer, 0.05 to 0.1 part of borax, 0.05 to 0.1 part of growth promoting agent and 30 to 80 parts of water. The jujube fruit cracking prevention film agent can prevent jujube fruit cracking.

The utility model discloses a kind of barrier composite materials for food, including PET film layer and transparent PE film layer;The PET film layer with the transparent PE film layer between adhesive film layer composite connection is connected.The barrier composite material for food provided by the utility model is formed by PET film layer and transparent PE film layer composite, its permeability has been effectively reduced relative to single PE material layer, after packaging food, it can improve the shelf life effect of food, and then extend the shelf life of food.

The utility model discloses an antibacterial breathable film suitable for a leakproof layer of a paper diaper, which comprises a breathable film main body, two side surfaces of the breathable film main body are respectively provided with a first TPU reinforcing layer and a second TPU reinforcing layer, a gap of the first TPU reinforcing layer is coated with an antibacterial coating to increase the antibacterial effect of the paper diaper, and the second TPU reinforcing layer is coated with an antibacterial coating to increase the antibacterial effect of the paper diaper. Gaps of the second TPU reinforcing layer are coated with the anti-blue-light protective layer to achieve the anti-blue-light effect, the anti-pressure capacity of the breathable film body is enhanced through the first TPU reinforcing layer and the second TPU reinforcing layer, the breathable film body is compounded in a leakage-proof layer structure of the paper diaper, and under the condition that the influence on the breathability of the breathable film body is reduced, the anti-blue-light effect is achieved. The elasticity of the leakage-proof layer of the paper diaper is effectively improved, after the leakage-proof layer is deformed to a large extent, the TPU reinforcing layer can drive the leakage-proof layer to shrink and recover, and the use effect of the breathable film is prevented from being affected.

The application belongs to the technical field of papermaking, and particularly relates to a method for preparing environment-friendly decorative base paper with high water absorption and low air permeability by using bamboo pulp fibers, which comprises the following steps: S1, preparing wet pulp; S2, mixing pulp; S3, preparing base paper; S4, preparing coating; and S5, paper surface coating treatment. The decorative base paper prepared by the method for preparing environment-friendly decorative base paper with high water absorption and low air permeability by using bamboo pulp fibers has the advantages of low filler content, high physical strength, good water absorption and low air permeability.

The application provides a coating slurry, a diaphragm, a preparation method of the diaphragm and a battery. The diaphragm comprises a base material and a coating layer arranged on at least one surface of the base material, wherein the coating layer comprises non-fluorine polymer microspheres and a non-fluorine binder; the mass ratio of the non-fluorine polymer microspheres to the non-fluorine binder is (1-18):1; the melting point of the non-fluorine polymer microspheres is denoted as T, the glass transition temperature of the non-fluorine binder is denoted as Tg, and the T and the Tg satisfy the following relationship: 30≤|T+Tg|≤190. In the application, the diaphragm can be cold-pressed with positive and negative electrode sheets at low temperature, the adhesion between the diaphragm and the positive and negative electrode sheets is high, the diaphragm has excellent interface bonding performance, and the diaphragm has good air permeability, thermal stability and anti-liquid wrinkle performance.

The application belongs to the technical field of papermaking, and provides a food contactable double-coated copper-coated card paper, a preparation method and application thereof. The food contactable double-coated copper-coated card paper comprises, from the front side to the back side, a front side surface coating layer, a front side base coating layer, a base paper, a back side base coating layer and a back side surface coating layer which are sequentially stacked, and the base paper comprises, from the front side to the back side, a surface layer, a core layer and a bottom layer which are sequentially stacked, the front side base coating layer and the back side base coating layer are obtained by coating a first coating material, and the front side surface coating layer and the back side surface coating layer are obtained by coating a second coating material, wherein the first coating material comprises the following components: 65-grade ground calcium carbonate, a first latex and a starch-acrylate graft copolymer, and the second coating material comprises the following components: 95-grade ground calcium carbonate, a second latex and a starch-acrylate graft copolymer. The double-coated copper-coated card paper has the advantages of high printing surface strength, high gloss, low surface roughness, low difference between two sides and low heavy metal content.

This invention discloses a composite fabric, characterized in that the composite fabric comprises a top layer, a middle layer, and a bottom layer sequentially laminated from top to bottom. The middle layer is a waterproof and breathable membrane. The top layer and the middle layer are bonded together by a first adhesive layer, and the middle layer and the bottom layer are bonded together by a second adhesive layer. Both the first and second adhesive layers are hot melt adhesive dot arrays, and the adhesive dots of the first and second adhesive layers at least partially overlap. Using this technical solution helps to improve the softness of the fabric while ensuring a certain level of breathability.