59results about How to "No curl" patented technology

Provided are: a gas-barrier laminate film which can be produced with good productivity, has high transparency and high gas barrier properties, has excellent interlayer adhesion strength among constituent layers thereof, and cannot be curled; and a process for producing the film. The gas-barrier laminate film comprises an inorganic thin film layer formed by a vacuum deposition technique, an inorganic thin film layer formed by a chemical deposition technique and an inorganic thin film layer formed by a vacuum deposition technique which are formed in this order on at least one surface of a base film, wherein each of the inorganic thin film layers formed by the vacuum deposition technique has a thickness of 0.1 to 500 nm inclusive and the inorganic thin film layer formed by the chemical deposition technique has a carbon content of not less than 0.5 at% and less than 20 at.% and a thickness of smaller than 20 nm.

The invention provides a continuous wood modification heat treatment process. The process comprises the following steps: stacking initial wood blanks on a trolley at intervals, applying pressure to the tops of the initial wood blanks to enable all the positions of the initial wood blanks to be stressed evenly and kept flat, and sequentially performing the following treatment steps of preheating treatment, heating treatment, drying treatment, carbonization treatment, slow cooling treatment, rapid cooling treatment and rewetting treatment. Each treatment step comprises a plurality of kilns, thekilns in the steps S2-S4 are arranged in an equal-gradient heating mode, and the kilns in the steps S5-S7 are arranged in an equal-gradient cooling mode. The invention provides a continuous wood modification heat treatment system. The continuous wood heat treatment system comprises a plurality of kilns, a trolley, a transmission device for driving the trolley to move, and a microwave and other heat source heating device. The process and the system provided by the invention provide high-quality wood which is low in energy consumption, short in production period, uniform and consistent in carbonization degree of the interior and the surface, high in strength and stable in performance, and the system is low in production cost and suitable for mass production.

The invention discloses a zipper feeding device. The zipper feeding device comprises a frame; the top of the frame is provided with a guiding roller set; a guiding ring, a press roller and a tension roller set are arranged below the frame. A zipper is conveyed below the frame by guiding of the guiding roller set and turns when passing through the guiding ring, the guide roller enables the zipper to be smoothed, the tension roller set enables the zipper to be tensioned and to keep smooth and uncurled when the zipper is conveyed to a next procedure.

The heat insulating composite foamed phenolic plate for building includes one heat insulating foamed phenolic plate produced with foamed phenolic resin 100 weight portions, polyurethane 10-25 weight portions, epoxy resin 0.5-5 weight portions, fire retardant 10-20 weight portions, surfactant 0.5-2 weight portions, polyglycol 5-15 weight portions, glass fiber 0.5-2 weight portions, foam homogenizing agent 5-10 weight portions, foaming agent 5-10 weight portions and acid curing agent 5-10 weight portions; and one sprayed layer in the surface of the heat insulating foamed phenolic plate and comprising cement 100-150 weight portions, water 80-100 weight portions, emulsion of acrylate copolymer 90-110 weight portions, hydroxyethyl cellulose 3-6 weight portions and defoaming agent 0.5-2 weight portions. The heat insulating composite foamed phenolic plate has high toughness, less pulverizing, high strength and good construction performance.

The present invention relates to a cleaning wiper for glass, with which moisture, stains, water marks, hand stains, grease, and the like on glass products (hereinafter referred to as cleaning target surfaces) such as liquid crystal and glass can be wiped with convenience.

The invention discloses a method for preparing a double-sided copper foil adhesive-free base material, especially for preparing a condensation thermoplastic double-sided copper foil adhesive-free base material, which is prepared by anti-ion migration additive compound on the roughened surface of the copper foil. Treatment and coating, and then through the reaction of thermoplastic prepolymer resin and thermosetting pre-main resin, compound heating, pressurization, and imidization at 300 ° C for 30 minutes to obtain ultra-thin double-sided copper insulating layer Double-sided copper foil adhesive-free substrate. The method of the invention has simple process and low cost, and the volume resistivity of the prepared insulating layer is 1×1014Ω·cm, which can meet the requirements of multilayer flexible circuit board products.

The invention discloses a high-barrier high-temperature-resistant packaging film capable of avoiding curling after sterilization. The packaging film comprises an upper film and a lower film, wherein physical crosslinking treatment is performed on the upper film to enable the melting point to reach 180-190 DEG C; the upper film comprises a CPP (chlorinated polypropylene) layer, and a first bonding layer, a first PA (polyamide) layer, an ink layer, a second bonding layer and a PE (polyethylene) layer which are sequentially arranged on the lower surface of the CPP layer; the lower film comprises a CPP layer, a third bonding layer and a nine-layer coextrusion layer; and in a heat sealing process of the upper film and the lower film, the PE layer of the upper film and the nine-layer coextrusion layer of the lower film are combined through heat sealing. Through the physical crosslinking treatment on the surface of the upper film, the melting point of the upper film can reach 180 DEG C or so; in the current sterilization and disinfection environment, the smoothness of the film can be kept, and the film can not curl; since the nine-layer coextrusion layer is used and multiple PE layers are arranged in the nine-layer coextrusion layer, the controllable thickness of each layer is realized on the premise of keeping an overlaying function, thereby realizing controllable cost; and since an EVOH (ethylene vinyl alcohol) layer and a PA layer are arranged, the EVOH layer has very strong barrier property, and the PA layer has puncture resistance.

The invention discloses a preparation method of an inorganic fireproof door core material, and belongs to the technical field of fireproof materials. The preparation method of the inorganic fireproof door core material is characterized by comprising the following steps that 1, cement slurry is prepared, wherein 1 part of sulfate aluminum cement, 0.002-0.01 part of water reducing agent, 0.002-0.01 part of basalt fiber and 0.3-0.4 part of water are mixed to be uniform for use; 2, a foam body is prepared, wherein a foaming agent is diluted, and the foam body is prepared; 3, the foam prepared in the second step and the cement slurry prepared in the first step are mixed according to the proportion of 2-6 mL / g, stirring is conducted to be uniform, the obtained mixture is poured into a mold, standard curing is conducted for 24 h, demolding is conducted, and then natural curing or standard curing is conducted for 7-28 days, and the inorganic fireproof door core material is obtained. When the inorganic fireproof door core material is subjected to a flame, dripping matter does not exist on the surface, the phenomena of curling and melting do not exist, and the inorganic fireproof door core material has the advantages of being good in use property and fireproof property and environmentally friendly.