Thermosensitive coating
By introducing a combination structure of protective layer, base layer and adhesive layer into the thermal paper layer, the problems of insufficient scratch resistance and water resistance of traditional thermal paper are solved, achieving better scratch resistance and moisture resistance, and extending service life.
Patent Information
- Application Number
- CN202520787765.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-24
AI Technical Summary
Traditional thermal paper has limited scratch and water resistance, making it susceptible to moisture and scratches, which affects its lifespan.
The thermal paper layer consists of a protective layer, a thermal coating layer, a base layer, and an adhesive layer. The protective layer consists of a scratch-resistant layer and a corrosion-resistant layer. The base layer consists of an isolation layer, a thermally conductive layer, a base paper layer, and a waterproof layer. All layers are bonded together with adhesive to form a stable structure.
It improves the scratch and water resistance of thermal paper, enhances its corrosion resistance and thermal conductivity, and extends its service life.
Smart Images

Figure CN223963751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermosensitive coating technology, and in particular to a thermosensitive coating. Background Technology
[0002] Thermal coating is a special coating mainly applied to thermal paper. Its core components include colorless dyes and color developers. This coating undergoes a chemical reaction when heated, thus revealing its color. The thermal coating is typically the second layer of thermal paper, below the paper base and above the protective layer. The activation temperature of the thermal coating can be designed to suit printers with different performance requirements. Traditional thermal paper, however, has limited scratch and water resistance, is easily affected by moisture and scratches, and its lifespan is affected.
[0003] Therefore, those skilled in the art have provided a thermal coating to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a heat-sensitive coating that is scratch-resistant and waterproof, and is not easily affected by moisture or scratches.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a thermal coating, comprising a thermal paper layer, wherein the thermal paper layer includes a protective layer, a thermal coating layer, a base layer and an adhesive layer, wherein the protective layer includes a scratch-resistant layer and a corrosion-resistant layer, and wherein the base layer includes an isolation layer, a thermally conductive layer, a base paper layer and a waterproof layer.
[0006] By adopting the above technical solution, the thermal paper layer is composed of a protective layer, a thermal coating layer, a base layer, and an adhesive layer; the protective layer is composed of a scratch-resistant layer and a corrosion-resistant layer; and the base layer is composed of an isolation layer, a thermally conductive layer, a base paper layer, and a waterproof layer. The scratch-resistant layer provides good scratch resistance to the outer side of the thermal paper layer, the corrosion-resistant layer provides good corrosion resistance to prevent the thermal coating layer from corroding the corrosion-resistant layer, the isolation layer isolates the thermal coating layer to prevent leakage, the thermally conductive layer increases thermal conductivity to transfer heat, the base paper layer ensures the strength of the thermal paper layer, and the waterproof layer increases waterproofness to prevent the base paper layer from getting damp.
[0007] Optionally, the protective layer is located on the front side of the heat-sensitive coating layer, the heat-sensitive coating layer is located on the front side of the substrate, and the adhesive layer is located on the back side of the substrate.
[0008] By adopting the above technical solution, the adhesive layer facilitates the installation of the thermal paper layer, the protective layer protects the thermal coating layer, and the base layer supports the thermal coating layer.
[0009] Optionally, the scratch-resistant layer is located on the front side of the corrosion-resistant layer, and the scratch-resistant layer and the corrosion-resistant layer are bonded together with adhesive.
[0010] By adopting the above technical solution, the adhesive can bond the scratch-resistant layer and the corrosion-resistant layer, resulting in a stable connection.
[0011] Optionally, the scratch-resistant layer is a polyester film layer, and the thickness of the scratch-resistant layer is 20μm-23μm.
[0012] By adopting the above technical solution, the polyester film layer has good strength and scratch resistance, preventing the thermal paper layer from being scratched.
[0013] Optionally, the corrosion-resistant layer is a polytetrafluoroethylene film layer, and the thickness of the corrosion-resistant layer is 22μm-25μm.
[0014] By adopting the above technical solution, the polytetrafluoroethylene film layer has good corrosion resistance and heat resistance, ensuring its service life.
[0015] Optionally, the insulating layer is located on the front side of the thermally conductive layer, the thermally conductive layer is located on the front side of the base paper layer, and the base paper layer is located on the front side of the waterproof layer.
[0016] By adopting the above technical solution, the isolation layer and the base paper layer are bonded together with adhesive around their perimeter, the heat-conducting layer is located in the cavity of the isolation layer and the base paper layer to facilitate heat conduction, and the waterproof layer is bonded to the base paper layer with adhesive to ensure a stable connection.
[0017] Optionally, the isolation layer is an EVA film layer, the thermally conductive layer is a graphene powder layer, the base paper layer is a base paper layer, and the waterproof layer is a polyurethane film layer.
[0018] By adopting the above technical solutions, the EVA film layer has good durability, can resist high temperature, moisture, ultraviolet rays and has high transparency, which increases the service life of the base layer. The graphene powder layer has good thermal conductivity, which increases the thermal conductivity of the base layer. The base paper layer ensures the strength of the base layer. The polyurethane film layer has good waterproof and wear-resistant properties, which ensures the waterproof and wear-resistant properties of the base layer.
[0019] In summary, this utility model has the following beneficial effects:
[0020] 1. This utility model comprises a thermal paper layer consisting of a protective layer, a thermal coating layer, a base layer, and an adhesive layer; a protective layer consisting of a scratch-resistant layer and a corrosion-resistant layer; and a base layer consisting of an isolation layer, a thermally conductive layer, a base paper layer, and a waterproof layer. The scratch-resistant layer provides good scratch resistance to the outer side of the thermal paper layer; the corrosion-resistant layer provides good corrosion resistance, preventing the thermal coating layer from corroding the corrosion-resistant layer; the isolation layer isolates the thermal coating layer, preventing leakage; the thermally conductive layer increases thermal conductivity, allowing heat transfer; the base paper layer ensures the strength of the thermal paper layer; and the waterproof layer increases waterproofness, preventing the base paper layer from getting damp.
[0021] 2. This utility model features an adhesive layer that facilitates the installation of the thermal paper layer, a protective layer that protects the thermal coating layer, a base layer that supports the thermal coating layer, adhesive that bonds the scratch-resistant and corrosion-resistant layers for a stable connection, a polyester film layer with good strength and scratch resistance to prevent the thermal paper layer from being scratched, a polytetrafluoroethylene film layer with good corrosion resistance and heat resistance to ensure service life, an isolation layer and a base paper layer bonded together around their perimeter with adhesive, a thermally conductive layer located within the cavity of the isolation layer and the base paper layer for convenient heat conduction, a waterproof layer bonded to the base paper layer with adhesive for a stable connection, an EVA film layer with good durability, resistance to high temperatures, moisture, ultraviolet rays and high transparency to increase the service life of the base layer, a graphene powder layer with good thermal conductivity to increase the thermal conductivity of the base layer, a base paper layer to ensure the strength of the base layer, and a polyurethane film layer with good waterproof and wear-resistant properties to ensure the waterproof and wear-resistant performance of the base layer. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 This is a magnified structural diagram of a portion of the thermal paper of this utility model.
[0024] Figure 3 This is a schematic diagram of the enlarged cross-section of the protective layer of this utility model.
[0025] Figure 4 This is a schematic diagram of the enlarged cross-section of the base layer of this utility model.
[0026] In the diagram: 1. Thermal paper layer; 101. Protective layer; 1011. Scratch-resistant layer; 1012. Corrosion-resistant layer; 102. Thermal coating layer; 103. Base layer; 1031. Isolation layer; 1032. Thermally conductive layer; 1033. Base paper layer; 1034. Waterproof layer; 104. Adhesive layer. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0028] Example 1:
[0029] Please refer to Figure 1-2 A thermal coating includes a thermal paper layer 1, which comprises a protective layer 101, a thermal coating layer 102, a base layer 103, and an adhesive layer 104. The protective layer 101 is located on the front side of the thermal coating layer 102, the thermal coating layer 102 is located on the front side of the base layer 103, and the adhesive layer 104 is located on the back side of the base layer 103.
[0030] In this embodiment, the thermal paper layer 1 is composed of a protective layer 101, a thermal coating layer 102, a base layer 103, and an adhesive layer 104. The adhesive layer 104 facilitates the installation of the thermal paper layer 1, the protective layer 101 protects the thermal coating layer 102, and the base layer 103 supports the thermal coating layer 102.
[0031] Example 2:
[0032] Reference Figure 1-4 The protective layer 101 includes a scratch-resistant layer 1011 and a corrosion-resistant layer 1012. The scratch-resistant layer 1011 is located on the front side of the corrosion-resistant layer 1012. The scratch-resistant layer 1011 and the corrosion-resistant layer 1012 are bonded together with adhesive. The scratch-resistant layer 1011 is a polyester film layer with a thickness of 20μm-23μm. The corrosion-resistant layer 1012 is a polytetrafluoroethylene film layer with a thickness of 22μm-25μm. The base layer 10... 3 includes an isolation layer 1031, a thermally conductive layer 1032, a base paper layer 1033, and a waterproof layer 1034. The isolation layer 1031 is located on the front side of the thermally conductive layer 1032, the thermally conductive layer 1032 is located on the front side of the base paper layer 1033, the base paper layer 1033 is located on the front side of the waterproof layer 1034, the isolation layer 1031 is an EVA film layer, the thermally conductive layer 1032 is a graphene powder layer, the base paper layer 1033 is a base paper layer, and the waterproof layer 1034 is a polyurethane film layer.
[0033] In this embodiment: a protective layer 101 is composed of a scratch-resistant layer 1011 and a corrosion-resistant layer 1012, and a base layer 103 is composed of an isolation layer 1031, a thermally conductive layer 1032, a base paper layer 1033, and a waterproof layer 1034. Adhesive can bond the scratch-resistant layer 1011 and the corrosion-resistant layer 1012, ensuring a stable connection. The polyester film layer has good strength and scratch resistance, preventing the thermally sensitive paper layer 1 from being scratched. The polytetrafluoroethylene film layer has good corrosion resistance and heat resistance, ensuring service life. The isolation layer 1031 and the base paper layer 1033 are bonded together with adhesive around their perimeter. The thermal layer 1032 is located inside the cavity of the isolation layer 1031 and the base paper layer 1033, facilitating heat conduction. The waterproof layer 1034 is bonded to the base paper layer 1033 with adhesive, ensuring a stable connection. The EVA film layer has good durability, can resist high temperature, moisture, ultraviolet rays, and has high transparency, increasing the service life of the base layer 103. The graphene powder layer has good thermal conductivity, increasing the thermal conductivity of the base layer 103. The base paper layer ensures the strength of the base layer 103. The polyurethane film layer has good waterproof and wear-resistant properties, ensuring the waterproof and wear-resistant performance of the base layer 103.
[0034] The implementation principle of this utility model is as follows: In use, the thermal paper layer 1 is composed of a protective layer 101, a thermal coating layer 102, a base layer 103, and an adhesive layer 104. The protective layer 101 is composed of an anti-scratch layer 1011 and a corrosion-resistant layer 1012. The base layer 103 is composed of an isolation layer 1031, a thermally conductive layer 1032, a base paper layer 1033, and a waterproof layer 1034. The anti-scratch layer 1011 has good strength and anti-scratch properties, preventing the thermal paper layer 1 from being scratched. The corrosion-resistant layer 1012 has good corrosion resistance and heat resistance, ensuring service life. The isolation layer 1031 and the base paper layer 1033 are reinforced with a waterproof layer 104. The thermally conductive layer 1032 is located within the cavity of the insulating layer 1031 and the base paper layer 1033, facilitating heat conduction. The waterproof layer 1034 is bonded to the base paper layer 1033 with adhesive, ensuring a stable connection. The insulating layer 1031 has good durability, resists high temperatures, moisture, ultraviolet rays, and has high transparency, increasing the service life of the base layer 103. The thermally conductive layer 1032 has good thermal conductivity, increasing the thermal conductivity of the base layer 103. The base paper layer 1033 ensures the strength of the base layer 103. The waterproof layer 1034 has good waterproofness and wear resistance, ensuring the waterproof performance and wear resistance of the base layer 103.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A heat sensitive coating comprising a heat sensitive paper layer (1), characterized in that: The heat-sensitive paper layer (1) comprises a protective layer (101), a heat-sensitive coating layer (102), a base layer (103) and an adhesive layer (104), the protective layer (101) comprises a scratch-resistant layer (1011) and a corrosion-resistant layer (1012), the base layer (103) comprises an isolation layer (1031), a heat-conducting layer (1032), a base paper layer (1033) and a waterproof layer (1034).
2. A heat sensitive coating according to claim 1, characterised in that: The protective layer (101) is located on the front side of the heat-sensitive coating layer (102), the heat-sensitive coating layer (102) is located on the front side of the base layer (103), and the adhesive layer (104) is located on the back side of the base layer (103).
3. A heat sensitive coating according to claim 1, wherein: The scratch-resistant layer (1011) is located on the front side of the corrosion-resistant layer (1012), and the scratch-resistant layer (1011) and the corrosion-resistant layer (1012) are bonded by glue.
4. A heat sensitive coating according to claim 1, wherein: The scratch-resistant layer (1011) is a polyester film layer, and the thickness of the scratch-resistant layer (1011) is 20-23 microns.
5. A heat sensitive coating according to claim 1, wherein: The corrosion-resistant layer (1012) is a polytetrafluoroethylene film layer, and the thickness of the corrosion-resistant layer (1012) is 22-25 microns.
6. A heat sensitive coating according to claim 1, wherein: The isolation layer (1031) is located on the front side of the heat-conducting layer (1032), the heat-conducting layer (1032) is located on the front side of the base paper layer (1033), and the base paper layer (1033) is located on the front side of the waterproof layer (1034).
7. A heat sensitive coating according to claim 1, wherein: The isolation layer (1031) is an EVA film layer, the heat-conducting layer (1032) is a graphene powder layer, the base paper layer (1033) is a raw paper layer, and the waterproof layer (1034) is a polyurethane film layer.