66 results about "Stickies" patented technology

The invention discloses a high-toughness carton and a preparation method thereof, and relates to the technical field of papermaking and environment-friendly packaging materials. The carton is made of a high-toughness composite corrugated board, and raw materials of the carton comprise main material pulp fibers, cross-linked modified nanocellulose, a modified starch adhesive, a wet strength agent and a rheology modifier. The cross-linked modified nano-crystalline cellulose is nano-crystalline cellulose of which the surface is grafted with a hyperbranched supramolecular cross-linking agent. According to the method, by preparing the nanocellulose with the surface grafted with the hyperbranched cross-linking agent, a mechanism capable of dissipating energy is constructed in a fiber network, and compared with the prior art, the defect that regenerated fibers are large in brittleness can be effectively overcome, and the dynamic impact toughness of the carton is remarkably improved. By using the modified starch adhesive disclosed by the invention, an adhesive layer has better ductility and interlayer binding force, and when a paperboard is stressed and deformed, the adhesive layer can be deformed along with the deformation and is not easy to break, so that the stability of interlayer binding is favorably kept.

The present application relates to the technical field of container closure manufacturing, and in particular to a closure aluminum foil gasket and a manufacturing method thereof. The method comprises the following steps: taking a paperboard and a polyolefin foam and stacking them according to the appropriate size, coating an adhesive on the contact surface of the two, and forming an upper layer; taking any one of PE, PP and PET film as a middle first layer and a middle third layer, and taking aluminum foil as a middle second layer, and forming a middle layer; taking PE, PP and PET film as a lower first layer and a heat-sealing functional layer, and taking aluminum foil as a lower second layer, and forming a lower layer; and sequentially adhering the upper layer, the middle layer and the lower layer from top to bottom to form a closure aluminum foil gasket. The present application adopts a three-layer composite structure design of upper layer + middle layer + lower layer to realize the optimization of the gasket in structural synergy, manufacturing quality stability and material adaptation flexibility, thereby significantly improving the sealing performance, durability and application range of the closure aluminum foil gasket.

The present application relates to a kind of glass fiber filter paper and its preparation method and application.The glass fiber filter paper includes at least three layers of glass fiber layers, and the glass fiber layers between layer and layer are gradient arrangement;Three layers of the outer layer of the glass fiber layer is combined with non-woven fabric layer.The method includes: according to the proportion, at least three kinds of glass fiber, dispersing agent and water are uniformly mixed, and at least three kinds of glass fiber slurry are obtained;At least three kinds of glass fiber slurry are formed on the non-woven fabric laid on the paper forming net, and the glass fiber paper film is formed, is pressed and is initially dried, and at least three layers of dry paper film are obtained;At least three layers of paper film are released at the same speed, at the same time, the non-woven fabric on at least one middle layer paper film is removed, then at least three layers of paper film are glued and combined, and adhesive curing is carried out.The technical problem to be solved is how to make the thickness of glass fiber filter paper less than 0.5mm, the filter material quality less than 110g / m 2 , the breaking strength is higher than 210kPa, while the pollution capacity is higher than 160g / m 2 , and the filtering precision is better than β (10 μm) greater than 300.

The application belongs to the field of electrical insulating materials, and discloses a slot insulating material for a low-altitude aircraft motor and a preparation method thereof. The slot insulating material for the low-altitude aircraft motor comprises, from top to bottom, a first insulating paper layer, a film layer and a second insulating paper layer; the first insulating paper layer and the second insulating paper layer are each independently selected from aramid fiber paper or polyaryl sulfone fiber paper; the film layer is selected from one of polyphenylene sulfide film, polyester film, polynaphthalene ester film, polyether ether ketone film or polyetherimide film; wherein, there is no independent adhesive layer between the first insulating paper layer, the film layer and the second insulating paper layer, the first insulating paper layer and the second insulating paper layer are directly combined on the upper and lower surfaces of the film layer through hot pressing, forming a three-layer glue-free composite structure of insulating paper-insulating film-insulating paper, and fundamentally solving the engineering problem that the glue-free composite slot insulating material is prone to paper breakage.

The invention relates to the technical field of facing artificial boards, in particular to a preparation method of an antistatic flame-retardant facing artificial board, which comprises a decorative paper preparation process, a base material preparation process and a compounding process, and the decorative paper preparation process sequentially comprises the following steps: step 1, obtaining a first raw material and a second raw material; secondly, the first raw material is treated in a blow molding mode, when the first raw material is subjected to blow molding to form a tubular hollow adhesive film and has the temperature of 110-120 DEG C, the second raw material with the temperature of 80-90 DEG C is provided for the outer side film face of the hollow adhesive film, and therefore the hollow decorative paper film is obtained; thirdly, the blow-molded hollow decorative paper film is led and taken; wherein the first raw material comprises a mixed adhesive added with a flame retardant, an initiator and a grafting monomer, and the second raw material comprises paper pulp added with an antistatic agent.

This invention discloses a food-grade alkali-free modified starch adhesive for corrugated paper lamination and its preparation method, belonging to the field of adhesive technology. The modified starch adhesive comprises, by weight, 150-250 parts starch, 250-350 parts water, 4-10 parts hydrogen peroxide, 1-5 parts defoamer, 5-10 parts preservative, and 150-200 parts modified ethylene-vinyl acetate copolymer emulsion; wherein the modified ethylene-vinyl acetate copolymer emulsion is prepared by blending cellulose aqueous solution, PVA, filler, and ethylene-vinyl acetate emulsion in a specific ratio. This invention does not use caustic soda or borax throughout the process; all raw materials are food-grade, and the finished product is weakly alkaline, meeting the requirements of GB4806.15-2024. Through synergistic oxidation modification and emulsion compounding, it significantly improves initial tack, bonding strength, and drying speed, resulting in a low scrap rate, good resistance to damp heat and freeze-thaw cycles, and is suitable for high-speed, room-temperature lamination production of food-grade and ordinary corrugated paper.

The utility model discloses a kind of adhesive mixing stirrers for paperboard coating, including stirring tank, the outside of stirring tank is equipped with temperature control component for controlling temperature to adhesive, one end of the temperature control component extends to the inside of stirring tank, the outside of stirring tank is equipped with air-blowing component for air-blowing in stirring tank, one end of the air-blowing component is communicated with one end of temperature control component, the outside of stirring tank is equipped with power component for providing power, one end of the power component extends to the inside of stirring tank, the utility model is by for hot melt adhesive and other temperature sensitive raw materials, system can quickly stabilize temperature to target interval, ensure that adhesive chemical reaction is fully, viscosity is stable, bonding strength and drying speed after coating are all improved, temperature control and stirring collaborative design expand multi-scene application, compatible normal temperature, high temperature, low temperature and multiple types of glue preparation, function applicability is greatly improved compared with traditional equipment.

This invention relates to a two-color erasable thermal paper and its preparation method, belonging to the field of printing consumables technology. The two-color erasable thermal paper includes, from top to bottom, a protective layer, a thermal coating layer, a base layer, and a substrate. The components of the thermal coating layer, by weight, include: 10-20 parts of filler B, 20-40 parts of color developer, 30-50 parts of adhesive resin B, 10-20 parts of dye, and 10-20 parts of temperature-regulating agent. The addition of a temperature-regulating agent to the thermal coating layer of this invention enables reversible erasing and writing, while improving its color retention performance, eliminating the need for sensitizers. The heat-insulating filler used in the base layer layer of this invention is a high-hollow-ratio material, which can enhance heat insulation and improve the heat resistance and sensitivity of the thermal two-color reversible erasable paper.

The corrugated cardboard producing machine (10) comprises reel unwinders (1, 2, 3) for dispensing strips (N1, N2, N3), an adhesive dispenser (4), a press (5), strip paths (11, 12, 13), and a control unit (10a). The first path (11) or the second path (12) crosses the adhesive dispenser (4) to insert adhesive (A) between the first strip (N1) and the second strip (N2) before the first strip (N1) and the second strip (N2) are pressed and pulled out by the first press belt (51) and the second press belt (52), or by the first press belt (51), the first press roller (53), and the second press roller (54). They are stopped and restarted by the control unit (10a) when a length is provided, based on a continuous value which is the desired length of the corrugated cardboard received by the control unit (10a). A machine (1000) and method comprising this machine and a machine (100) for boxing or packaging articles (P).

The invention discloses a preparation method of self-adhesive paper, which comprises the following steps: treating the surface of raw paper by atmospheric pressure plasma to enable the surface of the raw paper to be improved to a level enough to form chemical bonding with a lamination material, so as to obtain target raw paper; on the basis of an electrostatic spinning process, a lamination material containing a nano modifier is deposited on the surface of target body paper, and electrostatic spinning process parameters are controlled to enable the lamination material to form a lamination layer with specific morphological characteristics in the film forming process; coating an adhesive composition containing a photosensitive component and a thermosensitive component on the surface of the lamination layer, and curing to form an adhesive layer; and coating the surface of the adhesive layer with an ultraviolet curing organic silicon composition containing the rheological regulation and control nano filler, and curing to form a release layer to obtain the self-adhesive paper. The peeling strength and ultra-light stable release force between the body paper and the lamination layer are improved, and the problem of glue overflow is effectively avoided while high initial adhesion is realized.

The invention relates to the technical field of thermo-sensitive paper, and provides a thermo-sensitive paper surface adhesive and a preparation method thereof. The preparation method comprises the following steps: adding calcium carbonate, kaolin, nano silicon dioxide and expanded microspheres into deionized water, and adding a dispersing agent for dispersion treatment to obtain composite slurry; the preparation method comprises the following steps: adding chitosan into organic acid to prepare an acid solution of chitosan, then adding the acid solution of chitosan, cationic starch, polyvinyl alcohol and water-based acrylic emulsion into deionized water, stirring and dissolving to obtain a mother solution of the composite water-based adhesive; adding the composite slurry into a composite water-based adhesive mother solution, and stirring to obtain a surface adhesive coating solution; and coating the surface of thermosensitive base paper with the surface glue coating liquid, and carrying out drying treatment to obtain the thermosensitive base paper surface glue. According to the preparation method of the thermosensitive base paper surface adhesive, the heat insulation property, the surface strength, the flatness and the coating adaptability of the base paper are synchronously improved on the premise of not damaging the color development performance of a thermosensitive layer.

The application relates to the packaging and recycling fields, in particular to a degradable temperature control corrugated paper box for cold chain logistics and a recycling method, which comprises a paper box body made of corrugated paper board and at least one biodegradable functional composite film which is separably adhered to the outer surface and / or the inner surface of the paper box body through a water-soluble adhesive layer, the biodegradable functional composite film comprises a hydrophobic surface layer, a phase change heat preservation middle layer and a hydrophilic inner layer, the phase change heat preservation middle layer is dispersed with phase change material microcapsules, an irreversible thermochromic indicating label is arranged on the paper box body or the biodegradable functional composite film, and the application further comprises a recycling method of the degradable temperature control corrugated paper box. The application achieves the technical effects of effectively controlling the temperature in the cold chain logistics, degrading the paper box, facilitating recycling and utilization, reducing environmental pollution, and directly reflecting the temperature condition through the thermochromic indicating label.

The utility model discloses a double-sided adhesive tape without lining paper, and relates to the technical field of adhesive tapes. The lining-paper-free double-sided adhesive tape comprises an adhesive tape body, a limiting frame, a supporting base, a cutting unit and an abutting mechanism. The adhesive tape main body consists of a base material layer, an adhesive layer and a separation layer, and adopts a lining-paper-free design. The lining paper-free double-sided adhesive tape adopts a lining paper-free design, the adhesive force between the lining paper and the adhesive does not need to be considered, and when the adhesive tape is torn off subsequently, the adhesive is not easy to remain, so that the problem that the residual adhesive on an object is difficult to treat is avoided, and the cleanliness and convenience in use are improved. A cutting unit is provided. The adhesive tape main body can be conveniently, quickly and accurately cut off, the problem that the double-sided adhesive tape without lining paper is difficult to cut off is solved, and the use efficiency is improved. The abutting mechanism is arranged, so that the adhesive tape body is prevented from rotating or loosening when not in use, and meanwhile, the stability of the adhesive tape in the operation processes of pulling the adhesive tape, cutting the adhesive tape and the like is guaranteed.

The application discloses a kind of high voltage resistance composite capacitor paper, including base paper and coating layer coated on the surface of the base paper, the coating solution of the coating layer includes the following mass percentage of components: 1-10% of nano starch, 1-10% of nanocellulose, 1-10% of adhesive and 70-96% of water.The application also provides a kind of preparation method of the above-mentioned high voltage resistance composite capacitor paper.The high voltage resistance composite capacitor paper of the application includes base paper and coating layer, and the composite capacitor paper obtained after multi-layer compounding has the characteristics of high voltage resistance, high strength and low impedance.The coating layer of the high voltage resistance composite capacitor paper of the application is prepared by mixing nano starch, nanocellulose and adhesive to obtain high solid content nano coating solution, which effectively ensures the good bonding effect of coating on base paper and the uniformity of coating layer.

The application provides a deinking pulp line slurry adhesive impurity purification system and relates to the technical field of papermaking industry. The inside of the pulping carrier is provided with a processing cavity, and the processing cavity is provided with a cleaning assembly. The cleaning assembly comprises a rotating support cylinder, which is rotatably installed at the middle of the processing cavity. The outer side of the rotating support cylinder is fixedly connected with a connecting belt shaft. The outer side of the connecting belt shaft is fixedly connected with a pulping knife. The one end of the bidirectional screw rod is fixedly connected with a rotating handle. The outer side of one end of the rotating support cylinder is fixedly connected with a limiting angle block. Through the setting of the cleaning assembly, mechanical linkage is realized through adjustment. The adhered adhesive impurities and residual slurry are efficiently scraped through mechanical scratching. The cleaning efficiency is greatly improved. Bacterial growth caused by residual slurry is eliminated. The quality of subsequent slurry is not polluted from the source. The production efficiency and cleaning maintenance are double optimized.

The present invention relates to the field of binding adhesive tapes, and more particularly, to a tensile degradable environment-friendly fiber-sandwiched kraft paper adhesive tape and a manufacturing process therefor. Wherein the kraft paper adhesive tape includes a kraft paper layer and an adhesive layer, and a reinforcing layer provided on the kraft paper layer. The kraft paper layer is formed by stacking at least two layers of kraft paper, and the reinforcing layer is provided between two adjacent layers of kraft paper of the kraft paper layer. The reinforcing layer includes several yarns, and the yarns are adhered in the kraft paper layer by a composite glue, so that a fiber-sandwiched structure composed of yarns is formed in the kraft paper layer, which can improve the structural stability, the tensile and tearing strength of the kraft paper adhesive tape. In addition, it is advantageous for environmental protection.

The invention belongs to the field of corrugated board processing, and particularly relates to a processing method of an enhanced corrugated board, which comprises the following steps: respectively carrying out preheating and humidity adjusting treatment on surface paper, core paper and inner paper; mixing the modified basalt fiber and nano silicon dioxide according to a mass ratio of 3: 1-5: 1, adding a silane coupling agent, and performing ultrasonic dispersion to prepare a composite reinforcing agent; the pretreated paper wood forms a corrugated structure through a corrugated forming machine, and primary compounding is conducted through a starch adhesive; a composite reinforcing agent is applied in the compounding process, and the reinforcing agent is promoted to be uniformly distributed among the paperboard layers by adopting an electric field assisted permeation technology; carrying out surface plasma treatment and waterproof coating application on the molded paperboard; through deep fusion of materials, structures and processes, a product is upgraded from a basic packaging material to a high-performance composite functional material; and the produced corrugated board has the comprehensive advantages of high strength, moisture resistance, durability and the like.

The invention discloses a method for quickly removing glue on a net part guide roller, which comprises the following steps: a pretreatment stage: adding a debonding agent into a recycling pulp tank and a long fiber transition pulp tank, and adding a glue control enzyme into a discharging pulp tank, so as to carry out debonding dispersion and enzymolysis decomposition treatment on the glue in pulp; in the terminal protection and removal stage, a guide roller anti-sticking agent is added to a bottom net correction roller and a bottom net tensioning roller so as to remove stickers attached to the surfaces of the bottom net correction roller and the bottom net tensioning roller, and a protection layer is formed; and in the dynamic regulation and control stage, the content of the stickies, the adhesion amount of the stickies on the scraper and the surface cleanliness of the guide roller are monitored in real time, and the adding amounts of the debonding agent, the stickies control enzyme and the guide roller anti-bonding agent are adjusted according to the monitored data, so that dynamic adaptation of early-stage large-amount purification and later-stage reduction and energy conservation is achieved. According to the method, through the synergistic effect of the composite agent and dynamic precise regulation and control, full-process control of source viscosity reduction, terminal viscosity removal and continuous adhesion prevention is achieved, the removal rate of stickies is increased, broken paper and flaws are reduced, and meanwhile the treatment cost is remarkably reduced.

The invention discloses a light pressure dual-sensitive leuco coating composition and compression-resistant anti-counterfeiting paper.The coating composition comprises a first component and a second component which are used for coating different areas of paper to form films, and the first component comprises composite dye microcapsule emulsion, an adhesive and a silane coupling agent; the second component comprises the following raw materials: a film-forming agent, a color developing agent, an auxiliary agent, a filler and an adhesive. The invention has the advantages that the leuco film layer formed by the first component has both the organic fluorescent dye and the leuco dye, not only can display fluorescence during ultraviolet irradiation, but also can develop color when the friction film layer formed by the second component applies pressure to the leuco film layer and rubs, and the two developing effects and the anti-counterfeiting effect are better; the leuco film layer and the friction film layer are arranged in different areas of the paper, under the condition that the leuco film layer and the friction film layer are not folded to make contact with each other, when one of the film layers is independently pressed, color development is avoided, and therefore in the coating process and the transportation process, the problem of accidental color development does not exist even if the film layers are pressed.

The invention discloses a food contact grade water-based VAE adhesive for PE coated kraft paper as well as a preparation method and application of the food contact grade water-based VAE adhesive, and belongs to the technical field of polymer adhesives. The water-based VAE adhesive is prepared from the following components in percentage by mass: 1%-50% of a DiverSol540 VAE emulsion, 30%-90% of a DiverSol613M VAE emulsion, 1%-35% of emulsified water-based rosin and 1%-10% of water. The water-based VAE adhesive disclosed by the invention can form high-strength combination with kraft paper fibers, simultaneously realizes excellent initial wetting and firm adhesion to high-gram-weight PE coated kraft paper, has good cohesion and heat resistance, can effectively prevent thermal creep in a high-temperature coating process or in subsequent use, and solves the problem of high-end food packaging.

The invention discloses a bamboo pulp paper-PHA double-sided composite soil biodegradable agricultural mulching film as well as a preparation method and application thereof, and belongs to the technical field of agricultural mulching materials. According to the mulching film, bamboo pulp paper is used as a base material, and a water-based PHA inner stable coating on a soil attaching surface and a PHA extrusion film layer on a wind and rain facing surface are firmly combined by utilizing a'same-family wet-to-heat 'glue-free composite process. The problems that a traditional paper film is poor in weather resistance and a biodegradable plastic film is prone to premature senility are solved. Compared with products in the market, the scheme abandons an adhesive and a fluorine-containing auxiliary agent which hinder degradation, and the tear-grade strength of the fiber can be realized only by homeotropic interface anchoring; in addition, the blocking and soil moisture preservation effects superior to those of a traditional thick coating can be achieved with less PHA dosage, and the water absorption is remarkably reduced; the material has excellent mechanical adaptability and photo-thermal adjusting function, is completely mineralized after being buried into soil, and really realizes perfect unification of high performance and full environmental protection.

The application belongs to the technical field of functional composite materials, and particularly relates to an inflatable composite paper and a preparation method thereof. The inflatable composite paper comprises an intermediate layer, inflatable adhesive layers arranged on two sides of the intermediate layer, transition adhesive layers connected with the inflatable adhesive layers, and outer isolation layers. The transition adhesive layers are adhesives and are arranged between the inflatable adhesive layers and the outermost isolation layers. The composite paper is mainly applied to filling narrow gaps in electrically insulated spaces and fixing elements in narrow spaces. The composite paper is subjected to surface pretreatment of the outermost isolation layers, and is coated with low-viscosity adhesive material, so that the surface of one side of the isolation layer composite forms a smooth structure, the problem that layers are prone to delamination after expansion of the existing inflatable composite material is solved, and better stiffness and tensile strength can be maintained.

The invention relates to the technical field of mica paperboards, and discloses a preparation method of a high-temperature-resistant fireproof heat-insulating mica paperboard, which comprises the following steps: mixing natural phlogopite and synthetic fluorophlogopite flakes, and adding nano boron nitride and whisker premix to prepare a composite base material; compounding the modified basalt fibers and whiskers into a multi-scale reinforcement body, mixing the multi-scale reinforcement body with base material paper pulp, molding, and carrying out hot pressing to form a gully structure; a hybrid adhesive is prepared, the wet paper sheet is impregnated, and laser sintering is carried out after gully filling; a finished product is obtained through step-by-step hot pressing, secondary curing, micro-channel filling and high-temperature aging. According to the method, through multi-structure cooperation and multi-component compounding, the finished product has excellent high-temperature resistance, fire prevention and heat insulation, high strength, light weight and stable insulation performance, the service life is prolonged, and the protection requirement of the upper cover plate of the battery pack of the new energy automobile is met.

The invention discloses anti-permeation cigarette paper, a preparation method thereof and a heating cigarette, the anti-permeation cigarette paper is of a multi-layer hot-pressing composite structure, and comprises an adsorption layer, an isolation layer and a wrapping layer; the adsorption layer is arranged at the upper part of the isolation layer and comprises raw paper and an adhesive, and the adhesive is coated at one end, close to the isolation layer, of the raw paper; the isolation layer is of a transfer film structure formed by fixedly connecting an aluminized layer with the base film through an adhesive; the wrapping layer is arranged on the lower portion of the isolation layer and comprises body paper and an adhesive, and the adhesive is coated at one end, close to the isolation layer, of the body paper. The adsorption layer is used for adsorbing substances such as water, flavors and fragrances released due to storage and suction, and the isolation layer is used for blocking the substances adsorbed by the adsorption layer. The anti-permeation cigarette paper provided by the invention has the advantages of high opacity, good anti-permeation performance, no influence on the smoking sense and light gram weight. Therefore, a heated cigarette formed by rolling the cigarette paper has no oil leakage problem after being stored or smoked for a long time.

This invention discloses a paper straw adhesive with boiling water resistance and high stiffness, its preparation method, and its application. The paper straw adhesive comprises the following raw material components in parts by weight: 43-64 parts of silicone-modified acrylate emulsion, 21-38 parts of EVA emulsion, 10-28 parts of silica sol, 5-20 parts of polyvinyl alcohol, and 8-26 parts of deionized water. This invention provides a paper straw adhesive with both excellent water resistance and high stiffness.

The utility model discloses an anti-winding easy-to-cut self-adhesive paper shearing device which comprises a supporting base and a first supporting frame arranged on the upper side of the supporting base, an installation frame is arranged on the inner side of the first supporting frame, and a shearing knife body is installed in the middle of the installation frame. The driving rod is arranged on the left side of the mounting frame. According to the anti-winding and easy-to-cut self-adhesive paper shearing device, adhesive paper can be conveniently limited and clamped in the using process, so that the self-adhesive paper is not prone to winding due to too low tensioning degree in the shearing process of the device, and the shearing machining effect of the device is prevented from being affected; and meanwhile, after the device is used, the cutter can be conveniently and quickly disassembled, so that an operator can easily take out and clean the shearing cutter after the device is used, the situation that the residual adhesive influences the shearing quality of the cutter and reduces the use efficiency of the device is avoided, and a better use effect is achieved.

The application discloses a kind of multilayer composite self-adhesive label for food packaging and preparation method thereof, it is related to label material technical field, including base paper layer, adhesive layer, surface paper layer, the base paper layer selects the kraft paper coated with silicon oil, the side of surface paper layer away from adhesive layer is coated with polyvinyl alcohol coating, and adhesive layer uses acrylate adhesive.The polyvinyl alcohol coating is arranged on the surface paper layer of self-adhesive label in the application, realizes high barrier property, solves the problem that traditional label only has identification function without protection ability, solves the problem that traditional label is easily eroded by environment, improves the adaptability of label in high humidity environment.

The invention discloses a multi-angle color-changing cold stamping foil and a preparation process thereof, and relates to the technical field of package printing and anti-counterfeiting. The cold stamping foil comprises a base film layer, a separation layer, a first aluminum plating layer, a dielectric layer, a second aluminum plating layer and an adhesive layer which are sequentially stacked, the thickness of the dielectric layer is 100-500 nm, and the second aluminum plating layer is a semitransparent layer with the thickness of 5-20 nm. The preparation process comprises the following steps: preparing the cold stamping foil, coating an adhesive on a printing stock, pressing and transferring, and stripping a base film. According to the invention, the Fabry-Perot interference structure is formed by controlling the thicknesses of the two aluminized layers and the middle dielectric layer, so that the final hot stamping pattern presents a smooth and bright dynamic color changing effect at different observation angles. The technology is compatible with standard cold stamping equipment, the cost is low, the efficiency is high, and the manufactured product has the excellent visual effect and the high anti-fake performance and is suitable for the fields of high-end packaging, anti-fake certificates and the like.

The invention provides a preparation method of anti-counterfeiting burning-through paper, the anti-counterfeiting burning-through paper and an anti-counterfeiting packaging plate. The process comprises the following steps: taking printing paper and printing a first design pattern on the front surface of the printing paper to obtain a bottom layer; plastic fiber paper is taken, a second design pattern is printed on the front face of the plastic fiber paper, a third design pattern is printed on the back face of the plastic fiber paper, and a surface layer with composite patterns is obtained; the front face of the bottom layer and the back face of the surface layer are bonded in a covering mode through an adhesive, and a laminated body is obtained; wherein the adhesive is an adhesive containing nanoscale inorganic rigid particles; the surface layer side of the laminated body is subjected to hot-pressing treatment, so that a specified area of the surface layer is transparent, the first design pattern and the composite pattern which are visually overlapped are exposed, and the anti-fake hot-through paper is obtained; the anti-fake packaging plate comprises a base plate and anti-fake burning-through paper, and the side, away from the surface layer, of the bottom layer of the anti-fake burning-through paper is attached to the base plate. By means of the unique interlayer structure and the preparation method, complexity of the visual effect and irreversibility of physical anti-counterfeiting are achieved.

The utility model discloses a buffer type mylar, which relates to the technical field of mylar, and is characterized in that the buffer type mylar comprises a contact layer, the bottom of the contact layer is fixedly connected with a first buffer sponge, the bottom of the first buffer sponge is fixedly connected with a fixing layer, and the bottom of the fixing layer is fixedly connected with a plurality of reinforcing strips. Second buffer sponge is further arranged at the bottom of the fixing layer, a wear-resisting layer is fixedly connected to the bottom of the second buffer sponge, a plurality of first penetrating holes are formed in the fixing layer, a plurality of second penetrating holes are formed in the contact layer, pulling ropes are arranged in the first penetrating holes and the second penetrating holes, and the pulling ropes make contact with reinforcing strips. Fixing pieces are fixedly connected to the two ends of the pulling rope, and adhesive and release paper are arranged on the end faces of the fixing pieces. According to the utility model, PVC and nylon materials are adopted, and good wear resistance and insulativity of the materials are utilized, so that the service life of the whole mylar film is prolonged, and the practicability of the mylar film is improved.