35 results about "Cotton paper" patented technology

The present invention relates to a tissue paper machine (100) comprising - a forming section (101), - a drying section (102) comprising a Yankee dryer (20) and a non-dewatering transfer nip formed (TN) between the Yankee dryer (20) and a press assembly (30) for transferring the paper web (W) from the structured fabric (10) to the Yankee dryer (20), - a structured fabric (10), wherein the transfer nip (TN) is an extended press nip, the press assembly (30) comprising a press shoe (31) and an actuator (60) configured to operate the press shoe (31) to form the transfer nip (TN), and wherein the actuator (60) is configured to generate a desired linear load in the transfer nip (TN) by operating the press shoe (31) to extend into the transfer nip (TN) with a desired pressure and to change the linear load during operation of the tissue paper machine (100).

The invention discloses a high-temperature-resistant double-sided tape and a preparation method thereof.The high-temperature-resistant double-sided tape comprises a double-sided tape body, the double-sided tape body comprises a cotton paper base material layer, and high-temperature-resistant acrylate pressure-sensitive adhesive layers are arranged on the two sides of the cotton paper base material layer; wherein double-silicon glassine release paper is arranged on the outer side of one high-temperature-resistant acrylate pressure-sensitive adhesive layer, and a single-silicon release film is arranged on the outer side of the other high-temperature-resistant acrylate pressure-sensitive adhesive layer. According to the invention, the pressure-sensitive adhesive has proper molecular weight and molecular weight distribution through the proportioning combination of the soft and hard monomers and the functional monomers in the formula and a polymerization mode of gradually dropwise adding and feeding, and the adhesive tape is endowed with good holding power and 180-degree peel strength; by introducing the high-temperature-resistant modified monomer and reasonably matching the curing agent, the rigidity and the stability of a PSA molecular chain are improved through the structural characteristics of the heat-resistant monomer, so that the pressure-sensitive adhesive has relatively high bonding strength and heat resistance.

The invention discloses a safe and easy-to-tear firework lead paper adhesive product and a preparation method thereof, and belongs to the technical field of paper adhesive product preparation. The safe and easy-to-tear firework lead paper adhesive product is composed of cotton paper, backing paper and modified hot melt adhesive coated on the surface of the cotton paper, and the modified hot melt adhesive is composed of 80-96 parts of composite resin, 15-24 parts of curing agent, 4-9 parts of plasticizer, 10-15 parts of filler, 30-50 parts of solvent, 2-6 parts of hydrophobic modifier and 1-6 parts of assistant. The product prepared by the method has excellent bonding performance, safety performance and hydrophobic performance.

The utility model relates to a kind of degradable high liquid-absorbing composite medical cotton paper, and the skin-friendly non-woven fabric layer is soft porous structure;High liquid-absorbing fiber core layer is arranged below skin-friendly non-woven fabric layer;Antibacterial isolation layer is arranged below high liquid-absorbing fiber core layer;Degradable plastic film barrier layer is arranged below antibacterial isolation layer;Micro-sized air-permeable hole allowing liquid to pass in one direction is densely distributed on degradable plastic film;Bottom fabric layer is arranged below degradable plastic film barrier layer;Overall structure is made of degradable material, skin-friendly non-woven fabric layer, high liquid-absorbing fiber core layer, antibacterial isolation layer, degradable plastic film barrier layer and bottom fabric layer are compounded by environmental protection process, realize completely environment-friendly after use;It can effectively prevent liquid penetration to contaminate clothes, block back infiltration and inhibit bacteria, ensure dry and clean when using.

The utility model belongs to the technical field of adhesive tapes, and particularly relates to a cotton paper shading adhesive tape which comprises a base material layer, a first shading adhesive layer is arranged on one surface of the base material layer, and a second shading adhesive layer is arranged on the surface of one side, far away from the first shading adhesive layer, of the base material layer. The release layer is arranged on the surface of the side, away from the base material layer, of the first shading glue layer and / or the second shading glue layer, the base material layer is a cotton paper base material, cotton paper serves as the base material, the texture is soft, the flexibility is good, the adhesive tape can be bent and attached along with the shape of the pasting surface, the rebound resistance is high, and the pasting effect on the curved surface is excellent.

The invention provides a stable vehicle-mounted heating lens, and the lens comprises a heating assembly which is disposed in a lens cone and is located at a position adjacent to a lens; the heating assembly comprises a heating sheet and a thermistor, and the heating sheet is directly attached to the non-optical area of the lens through a double-sided cotton paper adhesive tape; a mounting structure for fixing the heating sheet is arranged in the lens cone; and the thermistor is electrically connected with the heating sheet and is used for monitoring the temperature in real time and feeding back and adjusting the heating power. The vehicle-mounted lens is compact in structure, high in weather resistance and heat efficiency and has an intelligent temperature-control vehicle-mounted lens heating scheme, the demisting effect and stability are improved, and the service life is prolonged.

The invention discloses a method for determining the storage year of Pu'er tea based on packaging cotton paper near infrared spectroscopy, which comprises the following steps of: dividing Pu'er tea packaging cotton paper into a Pu'er tea full contact area and a Pu'er tea partial contact area according to the contact area of the cotton paper and Pu'er tea in the Pu'er tea storage process; collecting near infrared spectrums of the two regions and calculating a variance spectrum of each sample, constructing a variance spectrum matrix of cotton paper at different storage times as a disturbance matrix of EPO correction, eliminating the difference of background information of Pu'er tea packaging cotton paper from different sources, extracting information related to the storage year of Pu'er tea in near infrared spectrum information of the packaging cotton paper, and calculating the storage year of the Pu'er tea. Establishing PLS-DA models of the Pu'er tea cotton paper in different storage years; the model is used for predicting the storage year of a to-be-tested sample; the method has the advantages of high measurement speed, high efficiency, excellent accuracy and stability, and good popularization and application values.

This utility model discloses a novel low-cost, compact transmission cable, comprising an outer sheath layer, inside which is a cotton paper layer, which is a hollow, thin-walled structure. Several parallel conductors are disposed within the cotton paper layer. Furthermore, a first shielding layer, a second shielding layer, a third shielding layer, and a fourth shielding layer are disposed within the cotton paper layer. Each of the first, second, third, and fourth shielding layers has an aluminum foil layer, and each of these layers contains a conductor. This novel low-cost, compact transmission cable employs a shielding method of adding a ground wire and aluminum foil to its data transmission unit. This achieves cost savings while maintaining a certain shielding effect, making it more economical and achieving structural optimization. It effectively achieves shielding while reducing the space occupied.

The utility model discloses a cotton paper dipping device which comprises a dipping tank and cotton paper, a stable supporting frame is fixed on one side of the top end of the dipping tank, a cavity is formed in the stable supporting frame, a driving piece is rotationally arranged in the cavity, a clamping piece is fixed at the top end of the driving piece, a supporting and cleaning rotating rod is rotationally arranged at the top end of the clamping piece, and the supporting and cleaning rotating rod is fixedly connected with the dipping tank. A supporting and scraping cross rod is fixed to the top end of the supporting and scraping rotating rod, a limiting block is fixed to one end of the supporting and scraping cross rod, and a glue smoothing scraping plate is fixed to one side of the supporting and scraping cross rod. The clamping piece can accurately control movement of the supporting and rotating vertical rod through meshing of the driving gear and the driven rack, and then the position of the supporting and scraping transverse rod is accurately adjusted, so that in the cotton paper dipping process, the working position of the glue smoothing scraping plate can be flexibly and accurately adjusted according to different cotton paper specifications and dipping requirements, and the working efficiency is improved. And it is ensured that each piece of cotton paper can be subjected to accurate material flattening operation.

The invention belongs to the technical field of lithium battery materials, and provides a reticulated lithium ion penetrating adhesive tape for a lithium battery termination diaphragm and a preparation method.The reticulated lithium ion penetrating adhesive tape for the lithium battery termination diaphragm comprises a base material and a reticulated adhesive layer, the base material is a diaphragm or non-woven fabric or cotton paper and provides a mechanical support and adhesion foundation, and the reticulated adhesive layer is a non-woven fabric or cotton paper. Diaphragm micropores assist in lithium ion transmission, and non-woven fabric / cotton paper enhances the binding force with the diaphragm; the adhesive layer is an acrylate pressure-sensitive adhesive system, a lithium ion transmission channel is formed through reticulate pattern coating, and meanwhile, stable connection between the base material and the diaphragm is ensured; the preparation method comprises the steps of base material pretreatment, glue solution preparation, reticulate pattern coating, curing and drying, and slitting and packaging. The problems that a traditional adhesive tape hinders lithium ion transmission, is poor in compatibility and is difficult to produce in quantity are solved, the charging and discharging efficiency and safety of the battery are improved, and the adhesive tape is suitable for industrial production.

The utility model relates to a turnover tray for processing electroplated products, which comprises a rectangular box body, pearl wool, a placing groove, tissue paper and a protective sleeve corner, the inner side of the upper end of the protective sleeve corner is provided with a first limiting plate which extends inwards, and the first limiting plate extends to the upper end of the pearl wool and can limit the pearl wool from moving upwards; firstly, the placing groove in the pearl wool is of an up-and-down penetrating structure, so that the pearl wool can be integrally machined and formed conveniently, and then the tissue paper is arranged between the bottom wall of the rectangular groove and the pearl wool, so that a product placed in the placing groove is protected, and the product is prevented from being scratched; the protection sleeve corners are clamped on the four corners of the box body, the box body can be protected to a certain degree, in addition, the first limiting plates on the inner sides of the protection sleeve corners can limit the pearl wool from moving out upwards, the stability of the pearl wool after installation is improved, meanwhile, glue bonding is not needed, the cost is reduced, and the labor intensity of workers is reduced.

The present invention relates to the field of processes for producing a security feature on a substrate by an intaglio printing process comprising a step a) of inking an intaglio engraved printing plate with an oxidative drying intaglio ink, said intaglio engraved printing plate being at a printing plate temperature between about 45° C. and about 85° C.; a step b) of wiping off any excess the oxidative drying intaglio ink using a paper of a tissue wiping system or using a polymeric wiping cylinder and cleaning said polymeric wiping cylinder with an alkaline aqueous wiping solution in combination with one or more mechanical means; a step c) of transferring said oxidative drying intaglio ink in the form of the security feature on the substrate; and a step d) of drying the oxidative drying intaglio ink in the presence of air so as to form the security feature.

The invention discloses a high-temperature-resistant adhesive for bonding low-surface-energy materials, a preparation method of the high-temperature-resistant adhesive and a cotton paper double-sided adhesive tape. The high-temperature-resistant adhesive is prepared from the following raw materials in parts by weight: 100 parts of polyacrylate, 30 to 40 parts of tackifying resin A, 5 to 8 parts of tackifying resin B, 5 to 10 parts of tackifying resin C, 0.02 to 0.05 part of curing agent A and 0.1 to 0.5 part of curing agent B. When the polyacrylate glue is synthesized, monomers which do not contain or contain a small amount of hydroxyl groups and carboxyl groups are used as main monomers, and a small amount of polar monomers are introduced; the synthesis time is relatively prolonged, and the temperature is slightly reduced, so that the main body adhesive with low overall surface energy and large molecular weight is obtained; the tackifying resin is added into the polyacrylate glue to improve the overall bonding performance of the adhesive, and the three tackifying resins are selected to supplement each other, so that the bonding performance of a low-surface-energy material is improved, and other performance is not sacrificed greatly.

The utility model discloses a device for observing and recording the mating behavior of drosophila melanogaster relates to drosophila melanogaster behavioristics field, a feeding part comprises a front side plate, a rear side plate, a bottom plate, a feeding plate and a cover plate, the bottom plate is arranged between the front side plate and the rear side plate, the whole of the front side plate, the rear side plate and the bottom plate is H-shaped, vent holes are uniformly arranged on the bottom plate, and the cover plate is arranged on the front side plate and the rear side plate. Cotton white paper is placed on the surface of the bottom plate, the feeding plate is placed on the cotton white paper, a plurality of staggered feeding holes are formed in the feeding plate, the feeding plate is covered with the cover plate, the L-shaped plate is installed on the rear side plate, an observation hole is formed in the L-shaped plate, and the motion camera is arranged at the observation hole. The device is simple in structure and low in cost, facilitates focusing of the camera, and can realize long-time observation and recording of mating behaviors of multiple pairs of drosophila melanogaster.

The utility model provides a filtering turnover disc for etching a printed circuit board, which comprises a circuit board turnover disc, an etching groove is arranged in the middle of the upper end of the circuit board turnover disc, a supporting fence is arranged in the middle of the groove wall of the etching groove, and the upper part of the left end of the circuit board turnover disc is fixedly connected with a limiting frame. A flow guide hopper is fixedly connected to the middle of the lower end of the circuit board turnover disc, a fixing mechanism is jointly and fixedly connected between the left portion and the right portion of the lower end of the circuit board turnover disc, the front end and the rear end of the fixing mechanism are each fixedly connected with two supporting legs, and the upper ends of the four supporting legs are all fixedly connected with the lower end of the circuit board turnover disc. According to the filtering turnover disc for etching of the printed circuit board, etching liquid can be further filtered and recycled through the arrangement of the filtering groove and the recycling mechanism, the filtering effect is enhanced, oil absorption cotton paper can be firmly fixed through the arrangement of the fixing mechanism, rapid replacement can be achieved, and the filtering turnover disc is suitable for being widely used.

The utility model relates to a high-temperature cotton paper double-sided adhesive tape which comprises a cotton paper base layer and high-temperature-resistant adhesive layers coated on two sides of the cotton paper base layer, and a micro-flow heat dissipation layer is arranged between the adjacent cotton paper base layer and high-temperature-resistant adhesive layer; the micro-flow heat dissipation layer comprises an evaporation area and a condensation area, and the adjacent evaporation area and condensation area are connected through an annular woolen yarn pipe; and the annular woolen yarn pipe is filled with water. The high-temperature-resistant adhesive tape has good high-temperature-resistant performance, can keep viscosity in a high-temperature environment, and meanwhile, the base material of the adhesive tape is cotton paper, so that the high-temperature-resistant adhesive tape has good flexibility and strength and is not easy to deform or damage.

The utility model discloses a multi-layer heat insulation buffer member used for a solar cell panel, comprising an MPP foam layer, one side of the MPP foam layer is provided with a first cotton paper double-sided adhesive layer, one side of the first cotton paper double-sided adhesive layer far away from the MPP foam layer is provided with a heat insulation layer, one side of the heat insulation layer far away from the first cotton paper double-sided adhesive layer is provided with a second cotton paper double-sided adhesive layer, and the second cotton paper double-sided adhesive layer is provided with a third cotton paper double-sided adhesive layer. The multi-layer heat insulation buffer material effectively combines the buffer performance of the MPP foam, the heat insulation performance of the aerogel and the silver-plated polyimide film and the bonding stability of the cotton paper double-faced adhesive tape, and all-around protection on the solar cell panel is achieved. The multi-layer heat insulation buffer material has the advantages that the heat insulation performance of the MPP foam, the heat insulation performance of the aerogel and the silver-plated polyimide film and the bonding stability of the cotton paper double-faced adhesive tape are effectively combined;

The invention provides a preparation method of rice-like paper, which comprises the following steps: by using a mixture of polyquaternium-7, polyoxyethylene alkylamine, sodium carboxymethyl cellulose and water as an auxiliary agent solution, immersing a non-woven fabric in a finishing solution (the auxiliary agent solution is dissolved in water) for finishing, and then compounding the non-woven fabric with just formed wingceltis paper together, a molecular bridge is formed at an interface by utilizing a polymer in the finishing liquid, the non-woven fabric and the wingceltis paper are organically combined, and due to the introduction of the non-woven fabric, the uniformity of rice-like paper is improved, and the expansion and contraction rate is reduced. By changing the component concentration of the finishing liquid, the regulation and control of ink absorbency, strength and durability of the rice-like paper are realized, and the effects of cooked rice and raw rice are achieved. The strength of the rice-like paper is improved, and the defect that the strength of traditional rice paper is weak is overcome; moreover, the use amount of the wingceltis bark is reduced, the use amount of the wingceltis bark only accounts for about 10% of the total mass of the Xuan-like paper, and compared with the existing cotton Xuan paper (the content of the wingceltis bark is about 40%) with the lowest content of the wingceltis bark, the use amount of the wingceltis bark is greatly reduced, and the cost is saved.

The utility model belongs to the technical field of cotton paper processing, and particularly relates to a drying device for cotton paper processing, which comprises a mounting frame, a first frame arranged on one side of the mounting frame, a guide roller arranged in the first frame, a second frame arranged on the other side of the mounting frame, and a driving motor arranged on one side of the first frame. A drying mechanism is arranged in the mounting frame, a pretreatment mechanism is arranged on one side of the second frame, and an adjusting mechanism is arranged in one side of the mounting frame. The drying mechanism comprises a hollow roller, a hollow shaft rod, a connecting piece, a connecting pipe, a heating box and a fan, one side of the hollow roller is fixedly connected with the hollow shaft rod, one side of the connecting piece is movably connected with the connecting pipe, the fan is fixedly installed on one side of the heating box, and the drying mechanism is matched with the pretreatment mechanism to be used for efficiently drying the cotton paper. Through the cooperation of the pretreatment mechanism and the drying mechanism, the cotton paper drying efficiency can be effectively improved.

The invention discloses a multi-stage composite production process of an EPDM (Ethylene-Propylene-Diene Monomer) rubber sealing element, and relates to the technical field of rubber sealing elements, and the multi-stage composite production process is technically characterized by comprising the following steps of: 1, extruding: putting EPDM rubber into a single-screw extruder, heating to 180-200 DEG C to be in a molten state, and conveying the EPDM rubber to a spinning machine through a metering pump; 2, spinning: forming filaments by the melt through a spinning machine consisting of a filter screen, a distribution plate and a spinning plate, drawing the filaments into a net forming area through hot air, and compounding the filaments with polyester fibers to form a semi-finished product; 3, glue spraying: coating water-soluble glue on the front and back surfaces of the semi-finished product, and compounding double-layer non-woven fabric or release paper or cotton paper; fourthly, slitting and die pressing are conducted, and after rewinding and slitting are conducted, a final product is formed through die pressing of a punching machine according to requirements; 5, inspecting and leaving factory, namely inspecting and leaving factory after packaging; the sealing element production device can achieve environment-friendly, efficient and stable sealing element production.

The utility model relates to the technical field of paper tearing devices, and discloses a back surface paper tearing device capable of being horizontally moved and adjusted. The back face paper tearing device capable of being horizontally moved and adjusted comprises a bottom plate, a bracket is fixedly installed above the bottom plate, an outlet is fixedly installed above the bottom plate, a limiting roller is movably installed above the bracket, and conveying rollers are movably installed below the bracket and in the outlet; a driving motor is fixedly installed on the front side of the bracket and the outlet, a pressing piston can drive a connecting plate to move downwards when extending, and due to the fact that a connecting column is in sliding connection with the connecting plate, when the bottom face of a limiting plate on the right side of the connecting plate makes contact with the bracket, the limiting plate and the bracket can clamp foam paper, and the foam paper is prevented from falling off. And meanwhile, the pressing plate at the bottom end of the connecting column can make contact with the transmission plate to clamp the foam paper, in this way, the position of the foam paper can be limited in the process of tearing off the foam paper, and the situation that a tearing opening deviates from a tearing line due to displacement of the foam paper is avoided.

The utility model discloses a cotton swab head forming device with a dustproof function for cotton swab production, and relates to the technical field of cotton swab production. The box comprises a box body. A layer of cotton paper is placed inside the placing assembly, then a cotton swab is placed at the top end of the cotton paper, a layer of cotton paper is placed at the top end of the cotton swab so that the cotton swab can be wrapped by the two layers of cotton paper, and then the driving assembly is started to drive the transmission assembly installed at the output end to rotate. According to the cotton swab and tissue paper placing device, the two sets of discharging molds are arranged at the top end of the placing assembly, so that the cotton swab and the tissue paper can be conveniently and alternately placed in a reciprocating mode, the downtime is shortened, and the production efficiency is improved. Therefore, the feeding and discharging efficiency of the cotton swabs in the processing process can be improved, and the production efficiency of the cotton swabs is improved.

The utility model discloses gambiered canton gauze silk floss cloth and clothes. The cloth comprises a silk floss layer, cotton isolation paper and lining cloth. The two layers of cotton isolation paper are arranged, and the silk floss layer is located between the two layers of cotton isolation paper; the liner cloth is divided into two layers, and the cotton isolation paper is located between the two layers of liner cloth; the silk floss layer, the cotton isolation paper and the liner cloth are fixed through sewing threads; and the inner cloth is sewn on one layer of liner cloth. The cloth and the clothes can be sewn through mechanical equipment, the production efficiency is greatly improved, batch production is carried out, the production cost is reduced, and the cloth and the clothes have the advantages of being not prone to cotton running, capable of being washed with water and machine, better in attractiveness and the like.

The invention relates to a high-temperature-resistant shading type cotton paper double-sided adhesive tape and a preparation method and application thereof. The high-temperature-resistant shading type cotton paper double-sided adhesive tape comprises a first layered high-temperature-resistant shading adhesive layer, a base material layer and a second layered high-temperature-resistant shading adhesive layer which are sequentially stacked, the first high-temperature-resistant middle layer is arranged on the first layered high-temperature-resistant shading adhesive layer; the second high-temperature-resistant middle layer is arranged on the second layered high-temperature-resistant shading adhesive layer; the base material layer is tissue paper containing polyether-ether-ketone powder; the first high-temperature-resistant middle layer and the second high-temperature-resistant middle layer respectively comprise glass fiber cloth; the first layered high-temperature-resistant shading adhesive layer comprises a first shading adhesive layer and a first high-temperature-resistant adhesive layer; the second layered high-temperature-resistant shading adhesive layer comprises a second shading adhesive layer and a second high-temperature-resistant adhesive layer; the first high-temperature-resistant adhesive layer and the second high-temperature-resistant adhesive layer contain silicon dioxide, and the first shading adhesive layer and the second shading adhesive layer contain shading materials. The high-temperature-resistant shading type cotton paper double-sided adhesive tape can be used for a long time in a high-temperature environment of 150 DEG C or above, and has good shading performance and bonding performance at the same time.

The utility model relates to the technical field of cotton paper rollers, and discloses a printing cotton roller which comprises a fixing shaft, a limiting hole is formed in one end of the fixing shaft, a reset spring is fixedly connected in the limiting hole, one end of the reset spring is fixedly connected with a limiting rod, and the limiting rod and the limiting hole are in horizontal sliding connection. By arranging the fixing shaft, the limiting hole, the reset spring and the limiting rod, the fixing shaft can be conveniently clamped in equipment, installation is easy, time and labor are saved, disassembly is convenient, by arranging the rectangular clamping groove, the fixing shaft can be conveniently connected with a rotating shaft of a motor through the rectangular clamping groove, and the situation that the fixing shaft does not rotate along with the rotating shaft when the motor drives the rotating shaft to rotate can be prevented; by arranging the annular limiting groove and the annular rubber pad, the cotton roller can be transversely limited conveniently, the cotton roller is prevented from loosening, by arranging the cross-shaped limiting plate and the cross-shaped limiting groove, the cotton roller is convenient to install and replace, the device is suitable for cotton rollers with different diameters, and the practicability of the device is effectively enhanced.

The utility model relates to the technical field of coating composite structures, and discloses a coating composite structure for cotton paper double faced adhesive tape production, which comprises a lower main machine seat and an operation table, an upper support plate is mounted at the top end of the operation table, a sliding groove is formed in the upper support plate, a rotating seat is mounted on the inner side of the upper support plate, and a rotating shaft is mounted on the rotating seat. A clamping block is connected into the rotating base, an adjusting scraping table is inserted into the clamping block, and a side locking rotary knob is inserted into the outer side of the sliding groove. By arranging the scraping table adjusting structure, during use, the scraping table is adjusted to drive the clamping block and the rotating seat to ascend and descend in the upper supporting plate so as to drive the side locking knob to slide in the sliding grooves formed in the front and the back of the upper supporting plate, and the side locking knob is locked after the position is adjusted. The side locking knobs at the front end and the rear end of the upper supporting plate are rotated to lock the rotating base in the upper supporting plate, then the angle of the scraping table is adjusted by adjusting the clamping block and the rotating base outside the scraping table, and therefore the scraping table adjusting function is achieved.

A cushioned mailer includes a paper outer layer comprising a tissue-grade paper material; a paper inner layer comprising a tissue-grade paper material and defining an inner cavity of the cushioned mailer, the inner cavity configured to receive contents therein, the inner cavity defining an opening at a top end of the cushioned mailer, the opening allowing access to the inner cavity; and an intermediate cushioning layer disposed between the paper outer layer and the paper inner layer, the intermediate cushioning layer comprising a plurality of cushioning inserts, each of the plurality of cushioning inserts being substantially uniform in size and shape.

The present application belongs to the technical field of film, especially a kind of environment-friendly recyclable composite film similar to cotton paper and a preparation method thereof.The material of the present application is formed by the outer film and the inner film being compounded by adhesive through a solvent-free compounding machine;the outer film is formed by A layer, B layer and C layer being connected in sequence and being stretched by three-layer co-extrusion blown film;the inner film is formed by D layer, E layer and F layer being connected in sequence and being stretched by three-layer co-extrusion blown film;and A layer is connected with D layer.The environment-friendly recyclable composite film similar to cotton paper has the advantages of appearance similar to paper, soft touch, high sealing strength and high tensile strength.

The present application relates to a kind of pu'er tea cake necktie knot packing folding machine, including first mobile station, tea cake seat on the first mobile station, second mobile station and tea cake clamping mechanism on the second mobile station, tea cake seat is equipped with cotton paper creasing mechanism above, the upper portion of second mobile station is equipped with cotton paper collection mechanism, cotton paper push flat mechanism and paper pressing cylinder.The present application is erected and creased by cotton paper creasing mechanism along the circumference of tea cake, the cotton paper in the erect creased state is concentrated and bound to the center of tea cake by cotton paper collection mechanism, the cotton paper after binding is pushed flat along the crease by cotton paper push flat mechanism, finally tea cake is flattened by flattening cylinder, and is taken out by artificial.Thereby, the present application can simulate the folding effect of artificial necktie knot, fully automatic folding, greatly improve the folding efficiency, and greatly reduce the labor cost.

The invention discloses an electronic equipment packaging protection structural member and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) providing cotton paper, and coating the reverse side of the cotton paper with heat sealing oil; (2) the reverse side of the cotton paper is divided into heat sealing areas and an isolation area, and the heat sealing areas are discontinuously distributed along the edge contour of the isolation area; (3) printing isolation oil on the isolation area, and printing patterns on the front side of the cotton paper; (4) folding the cotton paper along a preset fold line, so that the reverse sides of the cotton paper are close to each other, and the heat sealing areas are attached; and (5) hot pressing treatment is conducted on the heat sealing area, so that the heat sealing area is bonded through heat sealing oil, and the tissue paper forms a structural part with an opening. The cotton paper is used as a base material, is good in degradability, meets the requirements of environmental protection laws and regulations, is soft in texture, and prevents the surface of electronic equipment from being scratched, and the heat sealing oil and the isolation oil on the reverse side form a continuous protective film, so that the cotton paper keeps flexibility and has supporting force, cotton paper fibers can be effectively prevented from falling off, and the cleanliness of a product when the product leaves a factory is ensured.