38results about How to "Easy to die cut" patented technology

The invention discloses a shielding and grounding conductive foam tape with a metal foil sheet as the base material. The tape comprises shielding and grounding conductive foam, a hot melting adhesive layer, the metal foil sheet base material, a conductive adhesive layer and a release material layer which are sequentially stacked from top to bottom. The invention further discloses a method for preparing the shielding and grounding conductive foam tape. Compared with products in the current market with conducive cloth or gauze as the base material, the shielding and grounding conductive foam tape with the metal foil sheet as the base material has the advantages that conductivity is high, electromagnetic shielding function is better, die cutting can be achieved more easily, and the phenomenon which can happen on the conductive cloth that broken filaments appear is avoided. Compared with the method according to which ordinary conductive pressure-sensitive adhesive is adopted for gluing foam to a base material, the shielding and grounding conductive foam tape with the metal foil sheet as the base material has the advantage that the rebound resilience of foam is higher, and the problem that the rebound resilience of the foam is poor due to the fact that the foam is stuck with glue during die cutting or using is solved.

The invention discloses an ultrathin aerogel composite material and a method for preparing the same. Organic cloth or inorganic fiber surface felt is used as reinforcement, composition is carried out on the reinforcement and silicon dioxide aerogel to obtain the ultrathin aerogel coiled material or sheet, the organic heat conduction coefficient is lower than or equal to 0.018 w/mk, hydrophobic angles are larger than 150 degrees, the thickness of the ultrathin aerogel composite material with the organic cloth is 0.05-2 mm, and the thickness of the ultrathin aerogel composite material with the inorganic fiber surface felt is 0.1-1.5 mm. The ultrathin aerogel composite material and the method have the advantages that the ultrathin aerogel composite material prepared by the aid of the method is thin, the optimal thickness of the ultrathin aerogel composite material can reach 0.05 mm, the problems in the aspect of methods for preparing aerogel materials with the thicknesses lower than 0.3 mm and the qualification rates of products can be solved, the conventional thickness ranges of aerogel can be expanded, and the ultrathin aerogel composite material and the method can be applied to the field of electronic products with high requirements on thicknesses.

A flexible thermoformed dispensing package for a flowable material that can be massed produced on a horizontal thermoform-fill-seal (HTFFS) machine includes a container portion that is dimensioned and configured with a flat self-supporting base, integral opposing side walls and a rear wall extending from the base, and a top wall or seam integrally formed from a single sheet or web, the side walls tapering from the base toward the integral rear wall and terminating at the top wall or seam; and a front wall that is heat-sealed as a separate sheet to the periphery of the periphery of the base, side walls and top wall to form a fluid-tight package that maintains a stand-up orientation when in use, and optionally includes an integral dispensing tube with an optional internal extension terminating proximate the supporting base for withdrawing liquid contents from the package.

The invention discloses an automatic foam adhesive film waste discharge production line which comprises a feeding device, a first die cutting mechanism, a waste discharge mechanism, a laminating device and a second die cutting mechanism. The feeding device is located on the upstream of the first die cutting mechanism, the first die cutting mechanism is located on the upstream of the waste discharge mechanism, the waste discharge mechanism is located on the upstream of the laminating device, and the laminating device is located on the upstream of the second die cutting mechanism. The feeding device sequentially comprises a protective film discharge roller, a first tape pressing mechanism, a second tape pressing mechanism and a third tape pressing mechanism according to the production process, the protective film discharge roller is sleeved with a protective film, a first adhesive tape unwinding mechanism is arranged above the first tape pressing mechanism, and a foam discharge roller is arranged above the second tape pressing mechanism. According to the automatic foam adhesive film waste discharge production line, all the layers are attached, then die cutting and waste discharge are conducted, the automation degree is high, whether waste is discharged or not is observed through a red recognition film, and the product yield is guaranteed.

The invention provides a graphene-based thermal conductive film preparing method which includes the steps that biological materials are stirred and squeezed broken, and a solvent is added to the biological materials to dilute the materials; ultrasonic suction filtration is conducted on the obtained biological material pulp, and filter liquor of the biological material pulp is obtained and sealed for use; ultrasound is conducted on a graphite oxide solution, and oxidized graphene sol is obtained; the biological material filter liquid is mixed with the oxidized graphene sol, the mixed solution is made to react, and a reduced graphene film is obtained; the thermal annealing is conducted on the obtained film under the conditions of the inert atmosphere and low temperature, and the high-thermal-conductive graphene film is obtained. The graphene film prepared through the method has the advantages of being thermal conductive, electric conductive, good in mechanical property, controllable in thickness, wide in raw material source and capable of achieving batch production easily.

The invention relates to a graphene-copper composite heat-dissipating film as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, pretreating natural graphite, and then sequentially performing high-speed shearing, ultrasonic stripping and emulsification to obtain graphene; mixing the graphene, then preparing the graphene into a film,drying to obtain a graphene film, then heating the graphene film at a preset temperature to prepare a micro-balloon, and mechanically rolling the micro-balloon at a preset pressure to prepare micro-pleats; compacting the graphene film with copper foil, and then sticking a heat-conductive black film onto the other side of the copper foil to obtain the graphene-copper composite heat-dissipating film. According to the preparation method of the graphene-copper composite heat-dissipating film provided by the invention, the heat dissipation is accelerated by equalizing a point-like heat source to asurface and then emitting the heat in a longitudinal direction, so that a protection effect on a product component is achieved, and the heat dissipation effect is superior to that of graphite sheetsin the traditional process and artificial graphite sheets.

The invention relates to the technical field of a protection membrane, and particularly relates to a protection membrane with multiple application layers and a preparation method of the protection membrane. The protection membrane is provided with a plurality of application layers, and each application layer can be stripped from top to bottom; a base material of each application layer is a transparent polyester film, one side of the transparent polyester film is a hardening surface which is treated in a hardening manner, the other side of the transparent polyester film is a corona surface which is treated in a corona manner, a bonding layer is arranged between the corona surface of the upper application layer and the hardening layer of the lower application layer, each bonding layer comprises an area A and an area B, and the stripping force of the area A is 20g/25mm to 45g/25mm greater than that of the area B; the corona surface of the transparent polyester film on the bottommost layer is coated with a silica gel coating, and the surface of the silica gel coating is provided with a protection film layer. After the surface layer of the protection membrane is damaged, the application layer on the surface layer can be directly removed, the protection membrane can be further used, and the application cost is reduced. The preparation method is simple and convenient to popularize and use.

The invention relates to an easily-uncover aluminum plastic compound single film for a glass bottle sealing opening. The film comprises a body, wherein a compound layer, a base layer, and a heat sealing layer are arranged on the body in sequence; a blocking layer is arranged on the compound layer; the body comprises the components in percentage by weight: 29.47%-30.59% of low-density polyethylene, 39.05%-40.81% of linear low-density polyethylene and 29.72-30.36% of an ethylene-(methyl) acrylate copolymer. The film has the advantages that the low-density polyethylene, the linear low-density polyethylene and the ethylene-(methyl) acrylate copolymer are mixed for preparing the body, so that the glass bottle sealing opening is proper in fastness, and is proper in stripping force when being uncovered; a stripping interface is clean, an obvious attenuation phenomenon after refrigeration does not exist, and the film is wide in application range of packaged products; due to arrangement of the blocking layer, the body has the very good blocking performance, stiffness and forming performance, the blocking layer can enable the packaged products to obtain very good protection, the stiffness enables the compound film to be conveniently cut into single pieces, the forming performance enables pressing lines to be processed and arranged conveniently, and the use effect is good.

The invention discloses an explosion-proof membrane production method. The method comprises the following steps: providing a release film, putting a first uncoiler on the release film, passing the release film through a coating roller and a baking oven of a coating machine in order, then passing the release film through a composite wheel; providing an optical adhesive, adding a hardener in the optical adhesive, uniformly stirring the materials; separating the set temperature of the baking oven of the coating machine from an inlet to an outlet to a first temperature zone, a second temperature zone and a third temperature zone; providing a hardening membrane, putting a second uncoiler on the hardening membrane, passing one end of the hardening membrane through a corona machine and the composite wheel by the second uncoiler, applying a first surface of the hardening membrane and the first surface of the release film at the position of the composite wheel; turning on an explosion-proof membrane production device, coating the optical adhesive to the first surface of the release film by the coating machine, performing corona on the first surface of the hardening membrane by the corona machine, and compositing the first surface and the first surface of the release film on the composite wheel to form the explosion-proof membrane. According to the explosion-proof membrane production method, the produced explosion-proof membrane has the advantages of low cost, high quality and long service life.

The invention discloses a hot-melt pressure-sensitive adhesive for an RFID (Radio Frequency Identification Device) electronic tag, which is prepared from the following raw materials in parts by weight: 30 to 45 parts of styrene-isoprene-styrene block copolymer, 35 to 70 parts of tackifying resin, 20 to 35 parts of softening agent and 0.5 to 2 parts of antioxidant. The styrene-isoprene-styrene block copolymers comprise at least two of a specification A, a specification B, a specification C and a specification D, and the weight ratio of any two specifications in the styrene-isoprene-styrene block copolymers is (5-7): (1-3). The hot-melt pressure-sensitive adhesive for the RFID electronic tag has the advantages of good initial adhesion, strong bonding force, good adhesion to a base material, good die cutting and excellent high and low temperature resistance, and is suitable for a high-speed coating machine of 100m/min.

The invention discloses a buffering foam adhesive film production line which sequentially comprises a first laminating device, a first die cutting mechanism, a second laminating device, a second die cutting mechanism, a first waste discharging mechanism, a third die cutting mechanism, a third laminating device, a fourth die cutting mechanism and a second waste discharging mechanism according to the production process. The first laminating device sequentially comprises a foam paying-off roller and a first tape pressing mechanism according to the production process, a first adhesive tape paying-off roller is arranged above the first tape pressing mechanism, the foam paying-off roller is sleeved with a foam layer, the foam layer is pressed on the first tape pressing mechanism, the first adhesive tape paying-off roller is sleeved with first adhesive tape, the first adhesive tape penetrates through the first tape pressing mechanism to be attached to the foam layer, and a first release film of the first adhesive tape is connected with a first release film taking-up roller. The buffering foam adhesive film production line performs die cutting and waste discharging after laminating all layers, the automation degree is high, and whether waste is removed or not can be conveniently observed.

The invention relates to die cutting equipment for aluminum foil circuit board processing, and belongs to the technical field of aluminum foil circuit board processing. Comprising a rack, four guide columns are fixedly connected to the upper surface of the rack, a sliding plate is movably connected among the four guide columns, a connecting base is fixedly connected to the top of the sliding plate, a mounting frame is fixedly connected to one side of the rack, a first motor is fixedly connected to one side of the mounting frame, and a rotating disc is fixedly connected to one end of an output shaft of the first motor; according to the aluminum foil flattening device, the bottom of an aluminum foil can be adsorbed, so that the aluminum foil is flattened, errors generated when the aluminum foil is machined are reduced, meanwhile, the two sides of the aluminum foil can be pressed through a first pressing roller, and the aluminum foil can be flattened through a second pressing roller; and the die cutting precision of the aluminum foil is further improved, the aluminum foil rolls can be fixed, the die cutting device adapts to the aluminum foil rolls with different inner diameters, and the using flexibility of the device is improved.

The invention discloses environment-friendly dust-free foam and a preparation method thereof. The method comprises the steps that waste foam is smashed into particles, wherein the particles are added into raw materials for manufacturing the foam, and granular polyurethane is added into the raw materials for manufacturing the foam; and then the foam manufacturing raw materials are uniformly stirred and mixed with the waste foam particles and the polyurethane so that the waste foam particles are uniformly fused with the raw materials. The preparation method comprises the following specific preparation steps: S1, preparing foam particles: crushing recycled waste foam into particles; s2, preparing a foam stock solution, namely mixing and stirring raw materials for preparing foam to form the stock solution; s3, preparing a foam foaming agent: uniformly mixing and stirring a foam stock solution and foam particles; s4, foam forming: pouring a foaming agent into the mold, and taking out a finished product after the foaming agent is formed. The foam product disclosed by the invention is halogen-free and accords with an ROHS2.0 environment-friendly material; high rebound resilience, high adhesive force and retention force are achieved, and the waterproof and anti-permeation functions are achieved; and good market application values are realized.

The invention provides a composite and multi-station full-die-cutting ultrahigh-frequency antenna processing device and method. An antenna body of an ultrahigh-frequency tag antenna is provided with achip binding positioning point formed in a die cutting mode and a chip binding point formed in a die cutting mode. The processing equipment is characterized by comprising a first die cutting mechanism, a second die cutting mechanism and a floating roller device. The invention solves the following problems in the prior art: 1, problems in the prior art are solved; the problem of how to produce a chip binding point and a chip binding positioning point of an ultrahigh-frequency electronic tag antenna by using an etching process is solved. Problem 2: how to completely avoid the application of anetching process in the production process of the ultrahigh frequency electronic tag antenna. 3, how to prevent the position of the antenna layer from deviating during movement or transmission in the machining process; 4, how to help the antenna layer to better move or transmit while maintaining tension; and 5, how to help the chip binding point and the chip binding positioning point to be accurately machined.

The invention belongs to the technical field of heat dissipation adhesive tapes, and discloses a graphene composite heat dissipation coating and a preparation method thereof, and a heat dissipation adhesive tape and a preparation method thereof. Graphene is filled with C60 and heat-conducting powder through a hydrothermal reaction and a normal-temperature drying-freezing-normal-temperature drying mode, a graphene composite heat dissipation micropore structure is formed, and then the graphene composite heat dissipation coating is formed by combining the graphene composite heat dissipation micropore structure with organic silicon modified acrylic resin, a dispersing agent, water and auxiliaries. The heat dissipation adhesive tape is composed of a three-layer structure, the lowest layer is a carrier of the heat dissipation adhesive tape, the middle layer has heat conduction and insulation effects, and the uppermost layer is a coating layer formed by graphene composite heat dissipation paint and mainly has a heat dissipation effect. The heat dissipation adhesive tape is directly pasted into an electronic component, and efficient heat dissipation can be achieved.

The invention belongs to the technical field of hot melt adhesive tapes, and particularly relates to a hot melt adhesive tape for speaker mesh bonding and a preparation method thereof, the hot melt adhesive tape comprises a release layer, a hot melt adhesive layer, a pressure-sensitive adhesive layer and a release film layer; the preparation method comprises the following steps: (1) preparing a semi-finished product; (2) preparing a hot melt adhesive tape; and (3) curing to obtain a finished product. The hot melt adhesive tape prepared through the method is soft in material, can be perfectly attached to any curved surface or special-shaped speaker mesh material, has an excellent extinction effect, does not affect the original attractiveness of an electronic product after being attached to the speaker mesh, adopts the hot melt adhesive film and the pressure-sensitive adhesive to be compounded, does not need to be additionally attached to other base materials, is adjustable in product thickness, the cost is reduced, and the process is simplified.