1488results about "Thermography" patented technology

A sheet of material that is marked with a pulsed laser, the sheet of material having an outer edge and an inner edge separated by a core. The distance from the outer edge to the inner edge is the sheet thickness. The sheet of material has a total concentration of TiO2 of less than about 1.00%. There is an exterior layer beginning at the outer edge and extending into the core, the thickness of the exterior layer is from about 10.00% to about 40.00% of the sheet thickness, and the exterior layer has an average concentration of from about 2.50% to about 10.00% TiO2.

Disclosed is a printing ink for heat-sensitive recording media, which is (A) or (B) below: (A) a heat-sensitive color-developing printing ink containing a leuco dye, a color developer, a vinylpyrrolidone-vinyl acetate copolymer, and a solvent, wherein the color developer is at least one selected from the group consisting of an N,N'-diaryl urea-based compound represented by general formula (1) (in the formula, R0 represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group. The aralkyl group and the aryl group may be substituted with a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom. A plurality of R0s may be the same or different. A1 represents a hydrogen atom or a C1-4 alkyl group. A plurality of A1s may be the same or different.), a compound represented by general formula (2) (in the formula, R1 to R5 are the same or different, and represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a monoalkylamino group, a dialkylamino group, or an arylamino group.), and 5-(N-3-methylphenyl-sulfonamide)-N',N''-bis-(3-methylphenyl)-isophthalic acid diamide; and (B) a protective layer printing ink for heat-sensitive recording media, the protective layer printing ink containing an adhesive, a slipperiness imparting agent, and a solvent, wherein the adhesive is a polyvinyl acetal resin, and the slipperiness imparting agent is an alkyl phosphate ester and / or a salt thereof.

Systems, methods, and devices for providing a labeling technique for microscope slides using laser-markable ink are described. In some embodiments, laser-markable ink may be applied to a microscope slide or a sheet comprising a plurality of microscope slides. A laser may be provided to a portion of the laser-markable ink to initiate a chemical reaction in the laser-markable ink. The chemical reaction may mark a surface of the microscope slide at the portion of the laser-markable ink. The surface of the microscope slide may be marked with information and / or machine-readable indicia without etching the surface of the microscope slide.

The invention discloses a composite conductive paste transfer film, a photovoltaic electrode grid line preparation method and a photovoltaic cell, and relates to the technical field of photovoltaic cells. According to the preparation method of the composite conductive slurry transfer printing film, high-precision impressing forming, transfer printing, dissolving and other technologies are adopted for a PVA film, and composite conductive slurry is adopted, so that precise electrode design is achieved on a crystal silicon wafer. The high-precision impressing technology and the transfer printing technology are applied to preparation of the photovoltaic electrode grid line, and the precision and the resolution ratio of the electrode grid line can be greatly improved. Compared with a traditional single silver paste grid line, the use amount of silver paste can be reduced and the industrial cost can be reduced on the basis of achieving higher photoelectric conversion efficiency by using the composite conductive paste. The PVA film with proper thickness and hardness is directly used as a substrate to complete transfer printing, a conventional complex structure of a transfer printing substrate film and a water-soluble polymer coating is replaced, and the problems that the silicon wafer is damaged and the grid line structure is influenced due to the fact that the subsequent substrate cannot be easily separated from the crystal silicon wafer can also be solved.

The invention belongs to the technical field of printing materials, and provides a thermal printing material with a cleaning function and a preparation method and application thereof. The thermal printing material comprises a base material, a thermal imaging layer and a protective layer which are sequentially stacked, the protective layer is prepared from a first film forming material, a second film forming material and a cleaning function material, and the cleaning function material comprises rare earth oxide. The first film-forming material is at least one of modified polyvinyl alcohol, styrene acrylic resin, polyurethane resin, polyacrylic resin, styrene maleic anhydride copolymer and waterborne epoxy resin, and the second film-forming material is a carbonyl compound and / or an amino compound. The thermal printing material provided by the invention can clean a thermal printing head while printing, the thermal printing head is kept clean for a long time, the service life is long, the printing effect of an output information image is not influenced, and the thermal printing material has the characteristics of high-transparency appearance, clear image, high density and no scratch.

To provide a thermosensitive recording medium which has all of hot water resistance, water resistance, ethanol resistance, resistance to temperature and humidity, water scrubbing resistance and heat resistance, and can give an image having high density.SOLUTION: A thermosensitive recording layer contains a compound represented by the following general formula (1), and a styrene-acrylic resin. In the general formula (1), R2 is a linear, branched or alicyclic 1-12C alkyl group, an unsubstituted or 1-12C alkyl group, a 1-12C alkoxy group, a 6-12C aryl group or a 7-12C aralkyl group substituted with a halogen atom, or an unsubstituted or 1-12C alkyl group, a 1-12C alkoxy group, a 6-12C aryl group or a 6-12C aryl group substituted with a halogen atom, and the plurality of R2 may be the same or different. A1 represents a hydrogen atom, or a 1-4C alkyl group. The plurality of A1 may be the same or different.SELECTED DRAWING: None

The present invention provides an application of a type of inorganic material in the preparation of a color-changeable polymer material, and also provides a color-changeable polymer material prepared based on the type of inorganic material and a preparation method thereof, which belongs to the field of polymer laser processing technology. The inorganic material described in the present invention is an inorganic compound containing tungsten and / or molybdenum. The present invention prepares a color-changeable polymer material after adding a specific inorganic material as an additive to a polymer. Under the action of laser, the polymer material has an excellent color-change effect, and various color marks can be formed on the polymer material. The obtained color marks are clear and flat with high contrast. At the same time, the polymer material is light in color, and color marking can be achieved on a light-colored substrate, thereby expanding the scope of application. In addition, the preparation method of the color-changeable polymer material of the present invention is simple, easy to operate, safe, environmentally friendly, and very suitable for industrial applications.

The invention relates to the technical field of preparation of heat transfer films, in particular to a preparation process of a UV process heat transfer film, which comprises the following steps: base film selection, base film surface treatment, release agent selection, release agent coating, UV paint coating, bridging agent selection, printing, photocuring and film stripping: stripping the photocured transfer film from the base film to form the final UV heat transfer film. According to the UV heat transfer film prepared by the process, the adhesive force of the pattern layer and the UV coating layer is better, the compactness is higher, the product quality is improved, and the service life of the UV heat transfer film is prolonged; in addition, the efficiency is improved more quickly during curing, the residual adhesive rate is low after demolding and stripping, and the product quality is further improved.

The invention relates to a DTF pyrograph film and a preparation method thereof, the DTF pyrograph film comprises a back coating, a PET film layer, a bottom coating and a surface coating, the back coating comprises a first waterborne polyurethane emulsion, first matt powder, first wax powder, a first dispersing agent, a first wetting agent and a first defoaming agent; the primer comprises a water-based silicon resin emulsion, a second dispersing agent, a second defoaming agent, second matt powder, a water-based thickening agent, a second wetting agent and a first flatting agent; and the surface coating glue comprises a water-based cationic resin liquid, a second water-based polyurethane emulsion, matting powder, second wax powder, a third wetting agent, a slip agent, a third defoaming agent, a third dispersing agent, an anti-shrinkage agent, a second flatting agent, ethanol and an anti-settling agent. The DTF pyrograph film is light and thin in coating, uniform and consistent in coating, free of vertical printing, line printing, reticulate printing, cloud printing and the like during printing, free of lightning printing after being bent, capable of achieving hot tearing, second tearing and cold tearing during high-temperature transfer printing, clear and complete in pattern color after transfer printing, free of light reflection and shining, capable of resisting water and oil and good in hand feeling and wear resistance.

To provide a printing ink with thermochromic properties.SOLUTION: The present invention provides a thermochromic printing ink containing a leuco dye, a color developer, a vinylpyrrolidone-vinyl acetate copolymer, and a solvent, where the color developer is at least one selected from the group consisting of a specific N,N'-diaryl urea-based compound, a compound represented by general formula (2), and 5-(N-3-methylphenyl-sulfonamide)-N',N''-bis-(3-methylphenyl)-isophthalic acid diamide.SELECTED DRAWING: None

The invention relates to the technical field of layered materials, and discloses a low-temperature-resistant polyurethane transfer film and a preparation method thereof. The multi-layer structure heat transfer film with a glue layer and a polyurethane-based transfer layer is prepared, and a photo-curing transfer layer material containing polyurethane acrylate containing polyether, polybutadiene blocks and organic silicon branched chains with good low-temperature resistance and sulfhydrylation graphene oxide with excellent far infrared performance is prepared; the low temperature resistance and the water resistance of the heat transfer film are effectively improved.

The present invention relates to a transfer foil for transferring images onto solid substrates (transfer printing), such as textile supports, in particular T-shirts, metallic supports or plastic, in particular signs, ceramic supports, in particular cups and plates, etc., comprising a two-dimensional carrier based on polyester, based on polyether ether ketones or based on a cellulose-based material, having a layer (a) which is arranged on at least one of the carrier surfaces and which is made of a cross-linked, at least partially hydrolysed polyvinyl alcohol (PVA) polymer, The present invention also relates to the use of same. A further subject matter of the present invention is a ready-to-use system for transfer printing, comprising a transfer foil and an image applied thereto, in particular printed thereon, and a hot melt adhesive.

Pattern transfer sheets and methods are provided for printing paste patterns (e.g., thin fingers) with a high aspect ratio and for increasing throughput in pattern transfer printing. Trenches in the pattern transfer sheets, that are configured to be filled with printing paste and to enable releasing the printing paste from the trenches onto a receiving substrate upon illumination by a laser beam—are coated internally by a coating configured to disintegrate upon the illumination. The coating is configured to enhance the releasing of the paste—increasing throughput and printing accuracy. The receiving substrate may be cleaned after paste deposition by removing disintegration products of the coating therefrom. Alternatively or complementarily, laser absorbing dye may be mixed into the printing paste to facilitate its release from the trenches.

The invention discloses an anti-counterfeiting code printing method of variable temperature-sensitive ink, and belongs to the technical field of printing anti-counterfeiting. The invention provides a dynamic data and temperature response collaborative anti-counterfeiting scheme to solve the problems that an existing anti-counterfeiting code is easy to copy in a static state, and temperature-sensitive ink is single in function and fuzzy in superimposed information. The method comprises the following steps: generating unique dynamic data through an encryption algorithm and dividing the unique dynamic data into a plain code segment and a hidden code segment; configuring double-layer temperature-sensitive printing ink and a low-temperature layer, partially covering the plain code section, and enabling the high-temperature layer to be transparent at normal temperature and to be heated to develop hidden codes; a multi-channel high-precision printing device is adopted to superpose ink layers step by step, and a protective film is covered after ultraviolet curing to enhance durability. A user triggers hierarchical display and hiding through temperature, and dynamic data and physical characteristic dual verification is realized by combining a terminal verification system. The anti-counterfeiting information capacity is expanded, the problem of information blurring caused by ink diffusion is solved, high-security scenes such as packages, labels and certificates are compatible, and the anti-counterfeiting strength and the practical value are achieved.

The invention discloses a high-precision cold stamping printing one-piece flow process. The process comprises the following steps that S1, surface cleaning is conducted on a printing stock; s2, the surface of the printing stock is coated with UV glue in an ink-jet printing mode; s3, after coating is completed, low-energy UV is adopted for pre-curing, and the energy density is lt; the thickness is 50mJ / cm, and forming a semi-cured adhesive layer; s4, the cold stamping film is attached to the UV glue through an air cushion type pressing roller, then UV full curing is conducted, the cold stamping film is peeled off after curing, and the pattern is reserved on the printing stock; s5, performing color ink overprinting on the hot-stamped pattern to obtain a printed product; and S6, on-line detection and slitting are conducted on the printed matter. According to the high-precision cold-stamping printing one-piece flow process, the whole process is completed in an on-line mode, step-by-step operation is not needed, the production efficiency can be remarkably improved, micron-order pattern control can be achieved through ink-jet coating glue, complex patterns are supported, the glue utilization rate is higher, cold-stamping films are only locally transferred, the waste film rate is reduced, ozone is not generated through LED-UV curing, and the production cost is reduced. And the device is more environment-friendly and lower in energy consumption.

This application relates to a time-temperature indicator based on increased thermal reactivity of diacetylene upon melt recrystallization and a method of making it. A diacetylene is crystallized into a low thermal reactivity phase from a solvent system and converted into a higher thermal reactivity phase and low sensitivity to UV light by melt recrystallization.

Disclosed is a phenol-free, heat-sensitive recording material that comprises: (a) a substrate; and in order from a side close to the substrate, (b) an undercoat layer; and (c) a thermal-sensitive layer; wherein the thermal-sensitive layer comprises: a first developer comprising a sulfonamide compound represented by formula (1) below: wherein R1 and R2 may be the same or different, and each independently represents a hydrogen atom, an alkyl group having from 1 to 4 carbons, an alkoxy group having from 1 to 4 carbons, or a halogen atom, one or more second developers comprising at least one phenyl ureide compound represented by formula (2) below: wherein R3 and R4 may be the same or different, and each independently represents a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a toluenesulfonyl group, a toluenesulfonyloxyphenyl group, a monoalkylamino group, a dialkylamino group, or an arylamino group, and one or more stabilizers selected from the group consisting of compounds represented by formula (3) and (4) below, and a derivative thereof.

The invention discloses a pyrograph film capable of being efficiently stripped. The pyrograph film capable of being efficiently stripped comprises a base material layer, a release layer, a transfer layer and a hot melt adhesive layer which are sequentially stacked, the transfer layer comprises a pattern layer and a dielectric enhancement layer, the pattern layer and the dielectric enhancement layer are sequentially stacked, the pattern layer is arranged towards one side of the release layer, and the dielectric enhancement layer is arranged towards one side of the hot melt adhesive layer; the dielectric enhancement layer is of a layer structure with the thickness of 3 + / -0.3 [mu] m, and the layer structure is prepared from, by mass, 60% of acrylic resin, 30% of aluminum oxide nanowires and 10% of flatting agent. According to the pyrograph film capable of being stripped efficiently, the dielectric constant between the pattern layer and the hot melt adhesive layer is effectively increased through the dielectric enhancement layer, so that the overall material polarization capability and electrostatic adsorption capacity of the transfer layer are remarkably enhanced, and the problem of edge diffusion of ink in the transfer printing process of the pattern layer is solved; the adhesive force of the transfer layer to application environments such as curved surfaces and porous materials is improved, and the transfer precision and durability are improved.

To provide a thermal recording medium that can improve printing defects caused by the adhesion of printhead residue. [Solution] The thermal recording medium of the present disclosure is a thermal recording medium having a first direction and a second direction perpendicular to the first direction in a plan view, comprising a support having a first surface and a second surface facing the first surface, a thermal layer disposed in a part of the area of ​​the first surface of the support, a protective layer disposed on at least the upper surface of the thermal layer, and a cleaning layer disposed in a part of the area of ​​the first surface of the support and in a different area from the thermal layer, wherein at least a part of the first surface of the support has an exposed portion that is exposed from the thermal layer, the cleaning layer and the protective layer, and in a cross-sectional view when the thermal recording medium is cut toward the first direction at a predetermined position in the second direction, the thermal layer and the cleaning layer are disposed in a different area from the thermal layer.

This disclosure provides laser markable polymerizable resin compositions comprising infrared absorbing marking additives to achieve improved laser markability of 3-D printed objects obtained from these polymerizable resin composition, and methods for marking the cured resin compositions using an infrared laser.

The invention relates to an ultrahigh-weather-resistance OC protection thermal transfer ribbon and a preparation method thereof, and relates to the technical field of thermal transfer printing. The OC protection thermal transfer ribbon comprises a bonding layer, a curing layer, a stripping layer, a base material and a back coating layer which are sequentially arranged from top to bottom. The stripping layer is prepared from the following raw materials in parts by weight: 19 to 22 parts of second resin, 0.5 to 0.7 part of a release agent, 1.8 to 2.2 parts of a solid lubricant, 0.9 to 1.2 parts of a dispersing agent, 26 to 32 parts of a light stabilizer, 0.3 to 0.6 part of an antioxidant and 0.5 to 0.8 part of an antistatic agent; the curing layer comprises the following raw materials in parts by weight: 18-22 parts of third resin, 2-4 parts of an isocyanate curing agent and 19-22 parts of a reactive light stabilizer; the bonding layer is prepared from the following raw materials in parts by weight: 8 to 12 parts of fourth resin, 2 to 4 parts of an auxiliary agent and 0.8 to 1.1 parts of a dispersing agent. The OC protection thermal transfer ribbon obtained by the invention has good foil retentivity in high-speed printing, and also has high weather resistance, high alcohol resistance and high glossiness at the same time. The thermal transfer ribbon can be applied to different scenes, and the application range and adaptability of the thermal transfer ribbon are improved.

The utility model discloses a wear-resistant heat transfer lettering film, which belongs to the field of film technology, and sequentially comprises a release film layer one, a light-transmitting connecting layer, an adhesive layer one, a supporting layer, a hot melt adhesive layer and a release film layer two, wherein a printing layer is provided on the side of the light-transmitting connecting layer facing the adhesive layer, the supporting layer is formed with a plurality of air ducts perpendicular to the thickness direction of the lettering film, the supporting layer is formed with a plurality of ventilation ports consistent with the thickness direction of the lettering film, the ventilation ports are connected to the air ducts, and the hot melt adhesive layer is provided along the edge of the ventilation ports. With the wear-resistant heat transfer lettering film of the utility model, when the surrounding air flows, the lettering film will absorb air through the clothing, thereby accelerating the ventilation effect there, reducing the airtight effect at the place where the lettering film blocks, and ensuring comfort.

A thermal transfer sheet includes a substrate and a transfer layer, in which the transfer layer after transfer has a reduced peak height (Spk) of 0.6 μm or more. A method for producing a printed material using a thermal transfer sheet including a particle layer disposed on a substrate and an image-receiving sheet including a thermal protrusion-and / or-recess forming layer and a receiving layer stacked in that order on a second substrate, the receiving layer including an image that has been formed, includes the steps of heating the image-receiving sheet to form a protrusion and / or a recess at the image-receiving sheet, and heating the thermal transfer sheet to transfer the particle layer to at least part of the protrusion of the image-receiving sheet.

The invention discloses a thermo-sensitive paper coating suitable for a backing-paper-free label and a preparation method and application of the thermo-sensitive paper coating, and relates to the technical field of composite materials. According to the thermal-sensitive paper coating provided by the invention, a specific thermosensitive composition is adopted to construct a color developing substance of a color developing layer, 3-(3-methylureido) phenyl-4-methyl benzenesulfonate is compounded with a specific fluorane dye, and the obtained thermosensitive composition can form a covalent bond with silicone oil, so that the silicone oil can be promoted to be cured to form a compact coating, and the thermal-sensitive paper coating has the advantages that the thermal-sensitive paper coating has a good color developing effect; and the silicone oil isolation layer and the thermosensitive composition have excellent binding force, so that the coating provided by the invention has excellent color development performance and higher curing rate, the curing time is as low as 15 seconds or less, the glossiness is 46.7 GU or more, and the dynamic saturation color development performance is 0.96 or more.

The purpose of the present invention is to provide a heat-sensitive recording medium which hardly causes safety concerns such as endocrine disrupting chemicals, and is excellent in chromogenic properties and light resistance, and also excellent in heat resistance. A heat-sensitive recording medium (1) has a configuration in which a heat-sensitive recording layer (3) is layered on a substrate (2). The heat-sensitive recording layer (3) comprises a color former, a non-phenol-based developer, and a non-phenol-based light stabilizer. The non-phenol-based light stabilizer comprises a hindered amine-based light stabilizer. Preferably, the non-phenol-based developer comprises a compound represented by the following formula (1) and / or a compound represented by the following formula (2). (The symbols in the formulae (1) and (2) are as defined in the specification.)

The invention relates to full-color erasable thermosensitive photographic paper and a preparation method thereof. The full-color erasable thermosensitive photographic paper comprises a protective layer, a thermosensitive coating and a base material which are sequentially arranged from top to bottom, the thermosensitive coating comprises a yellow thermosensitive coating, a first middle layer, a magenta thermosensitive coating, a second middle layer and a cyan thermosensitive coating which are sequentially arranged from top to bottom. According to the full-color erasable thermosensitive photographic paper prepared by the invention, yellow, magenta and cyan with relatively high color density can be realized, and the situation that the color density of yellow, magenta and cyan in the current thermosensitive photographic paper is not enough is avoided; compared with the prior art, the full-erasable thermo-sensitive paper has the advantages that independent yellow, fuchsin and cyan can be printed, color overlapping can be carried out, and only tiny deviation of color coordinates occurs after 100 times of repeated erasing, so that the full-erasable thermo-sensitive paper can be repeatedly used, and the problems of serious environmental pollution and resource waste caused by the fact that ink-free photographic paper can only be used once in the prior art are solved.

Disclosed is a heat-sensitive recording material comprising at least an undercoat layer and a heat-sensitive recording layer in this order on a support,the undercoat layer containing an inorganic pigment, hollow particles, and a binder,the heat-sensitive recording layer containing a leuco dye, developers, and a binder,the heat-sensitive recording layer containing a first developer and a second developer as the developers,the heat-sensitive recording layer containing an N,N′-diarylurea-based compound represented by formula (1) as the second developer:whereinR2 represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group, the aralkyl group and aryl group may be substituted with a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom, and a plurality of R2s may be the same or different; andA1 represents a hydrogen atom or a C1-4 alkyl group, and a plurality of A1s may be the same or different.

The invention discloses a thin-type flexographic printing cold stamping material and a preparation process thereof, and relates to the technical field of cold stamping materials. The thin-type flexographic printing cold stamping material sequentially comprises a base film layer, a release layer, an imaging layer, an aluminum plating layer and an adhesive layer from bottom to top, the imaging layer is prepared from the following raw material components: composite acrylic resin, modified polyepichlorohydrin, pigment, ethanol, water, a coupling agent and nano silicon dioxide; the composite acrylic resin is obtained by copolymerizing 2, 4, 6-tri (allyloxy)-1, 3, 5-triazine, acrylic acid, butyl acrylate, diallylamine hydrochloride, methyl methacrylate and hydroxyethyl methylacrylate; the modified polyepichlorohydrin is obtained by modifying POSS (Polyhedral Oligomeric Silsesquioxane); the imaging layer of the prepared thin-type flexographic printing cold stamping material is good in adhesiveness, flame retardance and abrasion resistance.

The invention relates to a heat transfer printing receiving sheet with excellent storage stability. The heat transfer printing receiving sheet comprises a printing layer, a bottom coating, a front base material layer and a bonding layer which are sequentially arranged from top to bottom. The printing layer mainly comprises the following components in parts by weight: 50-95 parts of vinyl chloride resin containing polar groups, 5-30 parts of resin with polar groups, 1-12 parts of a release agent and 0.5-3 parts of a curing agent; the release agent is polyester modified organic silicon resin. By limiting the types and specific proportions of the two resins of the printing layer, the polyester modified organic silicon and the two resins are subjected to cross-linking reaction, the chemical structure stability of the printing layer can be improved, and the polyester modified organic silicon resin is relatively high in loss resistance, so that the printing layer has good dye receiving capability, and the printing layer is not prone to being damaged. While the color saturation of the image is ensured, the image can be stored for a longer time in a light environment and a humid environment, and the image retention performance is improved.

The utility model discloses waterproof thermo-sensitive paper, relates to the technical field of thermo-sensitive paper, solves the problem that the protection effect of the thermo-sensitive paper on a waterproof layer is not ideal, and comprises body paper, the outer surface of the body paper is provided with a first protection layer, and the thermo-sensitive paper is jointly constructed by arranging the body paper, the first protection layer, a second protection layer and an anti-counterfeiting layer. The surface of the body paper can be primarily protected through the first protective layer, the surface of the body paper can be protected again through the second protective layer, the waterproof performance of the body paper can be further improved through the second waterproof layer, the wear-resistant layer can improve the wear resistance of the thermo-sensitive paper, meanwhile, the second waterproof layer can be protected, and the service life of the thermo-sensitive paper is prolonged. According to the mode, the first protective layer and the second waterproof layer are not prone to being damaged, the protective performance of the body paper can be improved, the thermo-sensitive paper is not prone to being damaged in the using process, and the service life of the thermo-sensitive paper can be prolonged.