Waterproof thermo-sensitive paper

Abstract

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.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal paper, in particular to waterproof thermal paper. Background Art

[0002] Thermal paper is used as a communication carrier for text and graphics on fax machines, that is, as fax paper; in medical and measuring systems, as recording materials, such as electrocardiograms, thermal instrument recording papers, etc.; used as printing paper for Internet terminals; in commercial activities, it is used to make trademarks and signature codes, etc. The production principle of thermal paper is to coat microparticle powder on an ordinary paper base, the composition is colorless dye phenol or other acidic substances, separated by a film, under heating conditions, the film melts, and the powder mixes to react with color. The colored handwriting on the thermal paper is unstable and easy to fade, making the content of the document difficult to recognize. Although there are more than a dozen chemicals used in this thermal layer, there are at least the following compounds: colorless dyes, which have a wide variety of varieties, and the most commonly used are fluorescent compounds. Common lottery tickets use thermal paper. The thermal paper currently used has poor waterproofness and is prone to mold and deterioration in daily humid environments, resulting in a short lifespan, which needs to be improved;

[0003] After searching, the China Patent Network disclosed a long-life waterproof thermal paper, and its authorization announcement number is CN209368592U. The patent is provided with a base paper, a pre-coating layer, a thermal layer, a top coating layer, an anti-counterfeiting layer and a waterproof layer. The pre-coating layer is first coated on the surface of the base paper, and then the thermal layer is coated on the surface of the pre-coating layer. When the top coating layer is coated on the surface of the thermal layer, a gap is left on the surface of the thermal layer for printing the anti-counterfeiting layer. After the entire thermal paper is made, a waterproof film is pressed on the surface of the top coating layer and the anti-counterfeiting layer, so that water cannot affect the entire thermal paper, which can effectively prevent water from entering the interior of the thermal paper and affecting the entire thermal paper and preventing it from being used normally.

[0004] However, the protective effect of the waterproof layer in this patent is not ideal. The waterproof layer is easily worn during the use of the thermal paper, resulting in reduced waterproof effect, which will still cause the thermal paper to get damp and still have defects in use. Therefore, a waterproof thermal paper is now proposed. Utility Model Content

[0005] In order to improve the problem that the protective effect of thermal paper on the waterproof layer is not ideal, the utility model provides a waterproof thermal paper.

[0006] The utility model provides a waterproof thermal paper, which adopts the following technical scheme:

[0007] A waterproof thermal paper comprises base paper, wherein a first protective layer is arranged on the outer surface of the base paper, a second protective layer is arranged on the outer surface of the first protective layer, the first protective layer comprises a first waterproof layer, an antistatic layer and a thermal layer, the second protective layer comprises a second waterproof layer and a wear-resistant layer, and an anti-counterfeiting layer is arranged on one side of the top of the wear-resistant layer.

[0008] Optionally, the first waterproof layer is located on the outer surface of the base paper, the antistatic layer is located on the outer surface of the first waterproof layer, and the thermosensitive layer is located on the outer surface of the antistatic layer.

[0009] Optionally, the second waterproof layer is located on the outer surface of the heat-sensitive layer, and the wear-resistant layer is located on the outer surface of the second waterproof layer.

[0010] Optionally, the first waterproof layer is made of a polyurethane layer, and the thickness of the first waterproof layer is 0.02 mm.

[0011] Optionally, the antistatic layer is a conductive fiber layer, and the thickness of the antistatic layer is 0.03 mm.

[0012] Optionally, the second waterproof layer is a waterproof and breathable membrane, and the thickness of the second waterproof layer is 0.03 mm.

[0013] Optionally, the wear-resistant layer is a polytetrafluoroethylene layer, and the thickness of the wear-resistant layer is 0.04 mm. In summary, the utility model has the following beneficial effects:

[0014] The utility model constructs thermal paper by arranging base paper, a first protective layer, a second protective layer and an anti-counterfeiting layer. The first protective layer can provide preliminary protection for the surface of the base paper, and the second protective layer can provide protection for the surface of the base paper again. The second waterproof layer can further improve the waterproof performance of the base paper, and the wear-resistant layer can not only improve the wear resistance of the thermal paper, but also protect the second waterproof layer and improve the service life of the second waterproof layer. In this way, the first protective layer and the second waterproof layer are not easy to be damaged, the protective performance of the base paper can be improved, the thermal paper is not easy to be damaged during use, and the service life of the thermal paper can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 It is a partial cross-sectional schematic diagram of the first protective layer structure of the utility model;

[0018] Figure 4 It is a partial cross-sectional schematic diagram of the second protective layer structure of the utility model.

[0019] In the figure: 1. base paper; 2. first protective layer; 201. first waterproof layer; 202. antistatic layer; 203. thermal sensitive layer; 3. second protective layer; 301. second waterproof layer; 302. wear-resistant layer; 4. anti-counterfeiting layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] Please refer to Figure 1-4 A waterproof thermal paper comprises a base paper 1, characterized in that a first protective layer 2 is arranged on the outer surface of the base paper 1, a second protective layer 3 is arranged on the outer surface of the first protective layer 2, the first protective layer 2 comprises a first waterproof layer 201, an antistatic layer 202 and a thermal layer 203, the second protective layer 3 comprises a second waterproof layer 301 and a wear-resistant layer 302, and an anti-counterfeiting layer 4 is arranged on one side of the top of the upper wear-resistant layer 302.

[0023] In this embodiment: thermal paper is constructed by arranging base paper 1, a first protective layer 2, a second protective layer 3 and an anti-counterfeiting layer 4. The first protective layer 2 can provide preliminary protection for the surface of the base paper 1, and the second protective layer 3 can provide protection for the surface of the base paper 1 again. The second waterproof layer 301 can further improve the waterproof performance of the base paper 1, and the wear-resistant layer 302 can not only improve the wear resistance of the thermal paper, but also protect the second waterproof layer 301 and increase the service life of the second waterproof layer 301. In this way, the first protective layer 2 and the second waterproof layer 301 are not easy to be damaged, the protective performance of the base paper 1 can be improved, the thermal paper is not easy to be damaged during use, and the service life of the thermal paper can be increased.

[0024] As a technical optimization solution of the utility model, further, the first waterproof layer 201 is located on the outer surface of the base paper 1 , the antistatic layer 202 is located on the outer surface of the first waterproof layer 201 , and the thermal layer 203 is located on the outer surface of the antistatic layer 202 .

[0025] As a technical optimization solution of the present invention, further, the second waterproof layer 301 is located on the outer surface of the thermal sensitive layer 203 , and the wear-resistant layer 302 is located on the outer surface of the second waterproof layer 301 .

[0026] As a technical optimization solution of the utility model, further, the material of the first waterproof layer 201 is a polyurethane layer, and the thickness of the first waterproof layer 201 is 0.02 mm. The polyurethane coating has excellent thermal insulation performance, chemical resistance, easy processing, and good waterproof performance.

[0027] As a technical optimization scheme of the utility model, further, the antistatic layer 202 is a conductive fiber layer, and the thickness of the antistatic layer 202 is 0.03 mm. The conductive fiber coating has excellent performance in eliminating and preventing static electricity, which is much higher than that of the antistatic fiber, and the resistivity value is persistent and basically unaffected by humidity. At the same time, the conductive fiber can quickly leak and disperse the generated static electricity, effectively preventing the local accumulation of static electricity.

[0028] As a technical optimization solution of the utility model, further, the second waterproof layer 301 is a waterproof breathable membrane. The thickness of the second waterproof layer 301 is 0.03mm. The waterproof breathable membrane is a new type of polymer waterproof material. From the manufacturing process, the technical requirements of the waterproof breathable membrane are much higher than those of general waterproof materials. It is a good waterproof film.

[0029] As a technical optimization scheme of the utility model, further, the wear-resistant layer 302 is a polytetrafluoroethylene layer, and the thickness of the wear-resistant layer 302 is 0.04 mm. The polytetrafluoroethylene coating has excellent chemical stability, corrosion resistance, sealing, high lubricity and non-stickiness, electrical insulation and good wear resistance, and can effectively provide wear-resistant protection for the surface of thermal paper.

[0030] As a technical optimization solution of the present invention, further, the thermosensitive layer 203 is a thermosensitive coating layer, and the anti-counterfeiting layer 4 is an anti-counterfeiting label pasting layer.

[0031] The implementation principle of the utility model is as follows: when in use, a thermal paper is constructed by setting a base paper 1, a first protective layer 2, a second protective layer 3 and an anti-counterfeiting layer 4. The first protective layer 2 can provide preliminary protection for the surface of the base paper 1, wherein the first waterproof layer 201 can improve the waterproof performance of the surface of the base paper 1, and the antistatic layer 202 can improve the antistatic performance of the thermal paper to avoid static electricity during use. The second protective layer 3 can protect the surface of the base paper 1 again, wherein the second waterproof layer 301 can further improve the waterproof performance of the base paper 1, and the wear-resistant layer 302 can not only improve the wear resistance of the thermal paper, but also protect the second waterproof layer 301 and improve the service life of the second waterproof layer 301. The double-layer protection can improve the protective performance of the base paper 1, make the thermal paper less likely to be damaged during use, and improve the service life of the thermal paper.

[0032] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A waterproof thermal paper, comprising base paper (1), characterized in that: The outer surface of the base paper (1) is provided with a first protective layer (2), the outer surface of the first protective layer (2) is provided with a second protective layer (3), the first protective layer (2) comprises a first waterproof layer (201), an antistatic layer (202) and a thermosensitive layer (203), the second protective layer (3) comprises a second waterproof layer (301) and a wear-resistant layer (302), and an anti-counterfeiting layer (4) is provided on one side of the top of the wear-resistant layer (302).

2. The waterproof thermal paper according to claim 1, characterized in that: The first waterproof layer (201) is located on the outer surface of the base paper (1), the antistatic layer (202) is located on the outer surface of the first waterproof layer (201), and the thermal sensitive layer (203) is located on the outer surface of the antistatic layer (202).

3. The waterproof thermal paper according to claim 1, characterized in that: The second waterproof layer (301) is located on the outer surface of the heat-sensitive layer (203), and the wear-resistant layer (302) is located on the outer surface of the second waterproof layer (301).

4. The waterproof thermal paper according to claim 1, characterized in that: The material of the first waterproof layer (201) is a polyurethane layer, and the thickness of the first waterproof layer (201) is 0.02 mm.

5. The waterproof thermal paper according to claim 1, characterized in that: The antistatic layer (202) is a conductive fiber layer, and the thickness of the antistatic layer (202) is 0.03 mm.

6. The waterproof thermal paper according to claim 1, characterized in that: The second waterproof layer (301) is a waterproof and breathable membrane, and the thickness of the second waterproof layer (301) is 0.03 mm.

7. The waterproof thermal paper according to claim 1, characterized in that: The wear-resistant layer (302) is a polytetrafluoroethylene layer, and the thickness of the wear-resistant layer (302) is 0.04 mm.

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