An antistatic and heat-insulating thermal paper
By setting up a multi-layer protective structure on the thermal paper, the problems of static electricity buildup and temperature sensitivity are solved, ensuring print quality and information accuracy, and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG POLYGON NEW MATERIALS CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-30
AI Technical Summary
Existing thermal paper is prone to static electricity buildup in dry environments or under frequent friction, leading to decreased print quality and inaccurate information recording. It is also sensitive to temperature, and localized heating can cause discoloration.
A microcapsule structure layer, an antistatic layer, a heat insulation coating, a protective coating, and an anti-oxidation coating are set on the base surface of thermal paper. Nano-silica particles, zinc borate hydrate coating, PP film, and antistatic materials are used to form a multi-layer protective structure.
It effectively prevents static electricity buildup, maintains print quality, avoids discoloration reactions, enhances the stability and lifespan of thermal paper, and improves its applicability.
Smart Images
Figure CN224431143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal paper technology, and more specifically to an antistatic and heat-insulating thermal paper. Background Technology
[0002] Thermal paper, widely used in faxing, printing, and recording, is manufactured by coating high-quality base paper with a thermal coating. With advancements in technology and the progress of the times, thermal paper is being used more and more frequently in work and daily life. However, existing thermal paper on the market has many problems.
[0003] In dry environments or under frequent friction, thermal paper is prone to accumulating static electricity. The energy released by this static electricity can affect print quality, and it also makes the paper easily attract dust and impurities. Furthermore, thermal paper is sensitive to temperature; localized heating can easily trigger a discoloration reaction, leading to inaccurate or unreadable information, significantly impacting its usability and application range. To address these issues, the development of a new type of thermal paper with anti-static and heat-insulating functions is urgently needed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an antistatic and heat-insulating thermal paper to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: an antistatic and heat-insulating thermal paper, comprising a base layer, a microcapsule structure layer disposed on the top surface of the base layer, a thermal coating disposed on the top surface of the microcapsule structure layer, a top protective coating disposed on the top surface of the thermal coating, a bottom protective coating disposed on the bottom surface of the base layer, an antistatic layer disposed on the bottom surface of both the bottom protective coating and the bottom surface of the top protective coating, the top protective coating including a heat-insulating coating disposed on the top surface of the thermal coating, a protective membrane layer disposed on the top surface of the heat-insulating coating, the bottom protective coating including an anti-oxidation coating disposed on the bottom surface of the base layer, and a wear-resistant coating disposed on the bottom surface of the anti-oxidation coating.
[0006] Furthermore, the microcapsules of the microcapsule structural layer use polymethyl methacrylate-styrene copolymer as the wall material, and the inner side of the microcapsules is filled with nano-silica particles. The thickness of the microcapsule structural layer is 10-15 micrometers.
[0007] Furthermore, the heat insulation coating is made of hydrated zinc borate coating material with a thickness of 8-12 micrometers, and the protective membrane layer is made of PP film material with a thickness of 30-50 micrometers.
[0008] Furthermore, the antioxidant coating is made of acrylic resin material with a thickness of 3-5 micrometers, and the wear-resistant coating is made of polyurethane material with a thickness of 5-8 micrometers.
[0009] Furthermore, the antistatic layer is made of either dodecyltrimethylammonium chloride or dioctadecyldimethylammonium chloride, and its thickness is 1-2 micrometers.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] 1. This utility model effectively solves the problem of static electricity accumulation on the surface of thermal paper by providing an antistatic layer, avoiding the thermal paper from adsorbing dust, paper scraps and other tiny particles in the air, and at the same time avoiding the problem of poor contact between the print head and the paper surface, which would cause blurry prints, broken lines or blank areas.
[0012] 2. This invention significantly enhances the stability of thermal paper through the synergistic effect of the microcapsule structure layer, the top protective coating, and the bottom protective coating. The heat-insulating coating and the microcapsule structure layer effectively block heat transfer, ensuring the thermal coating remains stable under various ambient temperatures. This reduces discoloration caused by localized heating or changes in ambient temperature, ensuring the accuracy and durability of the information recorded on the thermal paper. The waterproofness of the protective membrane layer and the oxidation and abrasion resistance of the bottom protective coating provide comprehensive protection against external factors, extending the storage time and service life of the thermal paper and improving its applicability in different environments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the top protective coating structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the bottom protective coating structure of this utility model.
[0016] The attached diagram is labeled as follows: 1. Base layer; 2. Microcapsule structure layer; 3. Heat-sensitive coating; 4. Top protective coating; 401. Heat-insulating coating; 402. Protective diaphragm layer; 5. Bottom protective coating; 501. Anti-oxidation coating; 502. Wear-resistant coating; 6. Antistatic layer. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The antistatic and heat-insulating thermal paper involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] Reference Figure 1-3 This utility model provides an antistatic and heat-insulating thermal paper, including a base layer 1, a microcapsule structure layer 2 on the top surface of the base layer 1, a thermal coating 3 on the top surface of the microcapsule structure layer 2, a top protective coating 4 on the top surface of the thermal coating 3, a bottom protective coating 5 on the bottom surface of the base layer 1, and an antistatic layer 6 on the bottom surface of both the bottom protective coating 5 and the top protective coating 4. The top protective coating 4 includes a heat-insulating coating 401 on the top surface of the thermal coating 3, and a protective membrane layer 402 on the top surface of the heat-insulating coating 401. The bottom protective coating 5 includes an anti-oxidation coating 501 on the bottom surface of the base layer 1, and a wear-resistant coating 502 on the bottom surface of the anti-oxidation coating 501.
[0019] In this embodiment, the application of the antistatic layer 6 effectively solves the problem of static electricity accumulation on the surface of thermal paper, avoids the thermal paper from adsorbing dust, paper scraps and other tiny particles in the air, and at the same time avoids the problem of poor contact between the print head and the paper surface, resulting in blurry prints, broken lines or blank areas.
[0020] The synergistic effect of the microcapsule structure layer 2, the top protective coating 4, and the bottom protective coating 5 greatly enhances the stability of the thermal paper. The heat-insulating coating 401 and the microcapsule structure layer 2 effectively block heat transfer, ensuring the thermal coating remains stable under various ambient temperatures. This reduces discoloration caused by localized heating or changes in ambient temperature, ensuring the accuracy and durability of the information recorded on the thermal paper. The waterproof properties of the protective membrane layer 402 and the oxidation and abrasion resistance of the bottom protective coating 5 provide comprehensive protection against external factors, extending the storage time and service life of the thermal paper and improving its applicability in different environments.
[0021] In a preferred embodiment, the microcapsules of the microcapsule structure layer 2 are made of polymethyl methacrylate-styrene copolymer as the wall material, the inner side of the microcapsules is filled with nano-silica particles, and the thickness of the microcapsule structure layer 2 is 10-15 micrometers.
[0022] Nano-silica particles possess low thermal conductivity, and the microcapsules form tiny insulating spaces between the base layer 1 and the thermosensitive coating 3. These microcapsules further prevent heat generated at the bottom of the base layer 1 from being conducted to the thermosensitive coating 3, thus improving the thermal stability of the thermosensitive coating 3. Simultaneously, the nano-silica particles are translucent, having minimal impact on the color development of the thermosensitive coating 3.
[0023] In a preferred embodiment, the heat insulation coating 401 is made of hydrated zinc borate coating material with a thickness of 8-12 micrometers, and the protective membrane layer 402 is made of PP film material with a thickness of 30-50 micrometers.
[0024] Zinc borate hydrate has low thermal conductivity, effectively blocking the transfer of external heat to the thermal coating 3. When the ambient temperature around the thermal paper changes or it is locally heated, the heat insulation coating 401 acts as a buffer, reducing the direct impact of heat on the thermal coating 3 and preventing premature discoloration due to overheating. The PP film has good waterproof properties, effectively preventing moisture from contacting the thermal coating 3 and preventing the thermal paper from failing due to water ingress, thus ensuring the weather resistance of the thermal paper.
[0025] In a preferred embodiment, the antioxidant coating 501 is made of acrylic resin material with a thickness of 3-5 micrometers, and the wear-resistant coating 502 is made of polyurethane material with a thickness of 5-8 micrometers.
[0026] The antioxidant coating 501 can effectively prevent the base layer 1 from being oxidized and discolored by air during long-term storage, thus affecting the use of thermal paper. The wear-resistant coating 502 can prevent the bottom of the base layer 1 from being damaged by direct friction with the outside world, thus extending the service life of thermal paper.
[0027] In a preferred embodiment, the antistatic layer 6 is made of either dodecyltrimethylammonium chloride or dioctadecyldimethylammonium chloride, and its thickness is 1-2 micrometers.
[0028] Both dodecyltrimethylammonium chloride and dioctadecyldimethylammonium chloride have good hydrophilicity and can adsorb moisture from the air, forming a thin water film on the surface of thermal paper. This water film can effectively reduce the surface resistance of the paper, allowing accumulated static electricity to be quickly conducted away through the water film, thus preventing the large-scale accumulation of static electricity.
[0029] The working principle of this utility model is as follows: the microcapsule structure layer 2 has the characteristic of low thermal conductivity, and the microcapsules form tiny heat insulation spaces between the base layer 1 and the heat-sensitive coating 3. These microcapsules can further prevent the heat generated at the bottom of the base layer 1 from being conducted to the heat-sensitive coating 3, thereby improving the thermal stability of the heat-sensitive coating 3.
[0030] The top protective coating 4 has a low thermal conductivity, which can effectively block the transfer of external heat to the thermal coating 3. When the ambient temperature around the thermal paper changes or is locally heated, the heat insulation coating 401 can play a buffering role, preventing the thermal coating 3 from changing color prematurely due to overheating. The PP film has good waterproof properties, preventing the thermal paper from failing due to water ingress, thus ensuring the weather resistance of the thermal paper.
[0031] The antioxidant coating 501 can effectively prevent the base layer 1 from being oxidized by air and discoloring during long-term storage, thus affecting the use of thermal paper. The wear-resistant coating 502 can prevent the bottom of the base layer 1 from being damaged by direct friction with the outside world, thus extending the service life of thermal paper.
[0032] The antistatic layer 6 has good hydrophilicity and can absorb moisture from the air to form a thin water film on the surface of the thermal paper. This water film can effectively reduce the surface resistance of the paper and allow the accumulated static electricity to be quickly conducted away through the water film, thereby avoiding the large accumulation of static electricity.
[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An antistatic heat-insulating thermal paper comprising a base layer (1), characterized in that: The top surface of the base layer (1) is provided with a microcapsule structure layer (2), the top surface of the microcapsule structure layer (2) is provided with a thermosensitive coating (3), the top surface of the thermosensitive coating (3) is provided with a top protective coating (4), the bottom surface of the base layer (1) is provided with a bottom protective coating (5), the bottom surface of the bottom protective coating (5) and the bottom surface of the top protective coating (4) are both provided with an antistatic layer (6), the top protective coating (4) includes a heat insulation coating (401) provided on the top surface of the thermosensitive coating (3), the top surface of the heat insulation coating (401) is provided with a protective membrane layer (402), the bottom protective coating (5) includes an anti-oxidation coating (501) provided on the bottom surface of the base layer (1), and the bottom surface of the anti-oxidation coating (501) is provided with a wear-resistant coating (502).
2. The anti-static, heat-insulating thermal paper according to claim 1, characterized in that: The microcapsules of the microcapsule structure layer (2) are made of polymethyl methacrylate-styrene copolymer as the wall material, and the inner side of the microcapsules is filled with nano-silica particles. The thickness of the microcapsule structure layer (2) is 10-15 micrometers.
3. The anti-static, heat-insulating thermal paper according to claim 1, characterized in that: The heat insulation coating (401) is made of hydrated zinc borate coating material with a thickness of 8-12 micrometers, and the protective membrane layer (402) is made of PP film material with a thickness of 30-50 micrometers.
4. The antistatic and heat-insulating thermal paper according to claim 1, characterized in that: The antioxidant coating (501) is made of acrylic resin material with a thickness of 3-5 micrometers, and the wear-resistant coating (502) is made of polyurethane material with a thickness of 5-8 micrometers.
5. The antistatic and heat-insulating thermal paper according to claim 1, characterized in that: The antistatic layer (6) is made of either dodecyltrimethylammonium chloride or dioctadecyldimethylammonium chloride, and its thickness is 1-2 micrometers.