A thermal paper self-rolling label
By employing a multi-layered composite structure and an easy-tear design, the difficulties encountered in the tearing process of thermal paper labels have been resolved, enabling a self-rolling function and improving operational efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GUANWEI THERMAL PAPER CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing thermal paper labels are difficult to peel off from the backing paper or tear easily, lack self-rolling function, are inconvenient to operate, and affect efficiency and quality.
The thermal paper label adopts a multi-layer composite structure, including a thermal coating, a base layer and an adhesive backing layer. It combines an easy-tear release structure and a guide groove design, and utilizes shape memory materials and a release coating to achieve a self-rolling function.
It achieves the self-rolling function of thermal paper labels, and the tearing process is smooth and without twisting, improving operational efficiency and quality.
Smart Images

Figure CN224519432U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of thermal paper label technology, and in particular to a thermal paper self-rolling label. Background Technology
[0002] Thermal labels are special paper materials treated with a highly heat-sensitive coating. With their characteristics such as no need for ink and convenient printing, thermal paper labels occupy an important position in modern business activities and logistics management.
[0003] Some existing thermal paper labels require manual curling or folding after being peeled off from the backing paper, lacking a self-rolling function, making operation inconvenient. Furthermore, thermal paper labels often experience difficulty in tearing or are easily torn when peeled off from the backing paper, thus affecting efficiency and quality. Utility Model Content
[0004] To address the problems mentioned in the background art, this application provides a thermal paper self-rolling label.
[0005] The technical solution for a self-rolling thermal paper label provided in this application is as follows:
[0006] A self-rolling thermal paper label includes a self-rolling label body, thermal paper labels, and a backing paper. The self-rolling label body is composed of multiple thermal paper labels wound together with the backing paper. The thermal paper labels are placed on top of the backing paper. The thermal paper labels adopt a composite layered structure, which includes a thermal coating, a base layer, and an adhesive backing layer. The backing paper is also provided with an easy-tear structure to facilitate the removal of the thermal paper labels.
[0007] Preferably, the thermal coating is disposed on the outermost layer and directly contacts the printhead. The thermal coating is composed of chemical substances such as thermal dye, color developer, and filler.
[0008] Preferably, the base layer is disposed in the intermediate layer, and the top and bottom of the base layer are respectively bonded to the bottom of the heat-sensitive coating and the top of the backing layer by adhesive. The base layer is made of a polymer material with shape memory function.
[0009] Preferably, the adhesive backing layer is disposed in the innermost layer, the adhesive backing layer is made of an adhesive with adhesive properties, and the bottom of the adhesive backing layer is adhered to the backing paper.
[0010] Preferably, the easy-tear structure includes an easy-tear opening at one end of the backing paper, and the easy-tear opening is triangular in shape.
[0011] Preferably, the surface of the base paper is provided with a guide groove at the edge of the thermal paper label, and the guide groove is rectangular in shape.
[0012] Preferably, the surface of the base paper is further coated with a special release coating, which is a silicone release agent.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. The thermal paper label of this utility model is composed of multiple layers of thermal coating, base layer and adhesive backing. When the print head of the thermal printer heats up and comes into contact with the thermal coating, the heat causes the thermal dye and color developer to react and generate visible images or text, thus completing the printing process. When the thermal paper label is peeled off from the backing paper, under the action of the ambient temperature, the molecular chains inside the material move and rearrange, returning to the preset curled shape, thereby realizing the self-curling function.
[0015] 2. This utility model features an easy-tear structure with an easy-tear opening at one end of the backing paper. The easy-tear opening is triangular or similar in shape, which increases the contact area and friction between the fingers and the backing paper, making it easier for users to pinch and start tearing. A release coating is applied to the surface of the backing paper, which reduces the adhesion between the adhesive layer of the thermal paper label and the backing paper, making the tearing process smoother. A guide groove is provided on the surface of the backing paper. When the thermal paper label is torn, the guide groove can guide the label to peel off in a straight line, preventing the label from shifting or twisting during the tearing process. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a thermal paper self-rolling label in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the internal structure of a thermal paper self-rolling label in an embodiment of this application;
[0018] Figure 3 This is a top view of the structure of a thermal paper self-rolling label in an embodiment of this application.
[0019] Explanation of reference numerals in the attached diagram: 1. Self-rolling label body; 2. Thermal paper label; 3. Backing paper; 4. Thermal coating; 5. Base layer; 6. Adhesive backing layer; 7. Tear-off opening; 8. Guide groove; 9. Release coating. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1 —3 provides further detailed description of this application.
[0021] This application discloses a self-rolling thermal paper label, including a self-rolling label body 1, a thermal paper label 2, and a backing paper 3. The self-rolling label body 1 is composed of multiple thermal paper labels 2 wound together with the backing paper 3. The thermal paper label 2 is placed on top of the backing paper 3. The thermal paper label 2 adopts a composite layered structure, which includes a thermal coating layer 4, a base layer 5, and an adhesive backing layer 6. The backing paper 3 is also provided with an easy-tear structure to facilitate the tearing off of the thermal paper label 2.
[0022] refer to Figure 2 The thermal coating 4 is located on the outermost layer and directly contacts the print head. The thermal coating 4 is composed of thermal dyes, color developers, fillers, and other chemical substances. The base layer 5 is located in the middle layer. The top and bottom of the base layer 5 are bonded to the bottom of the thermal coating 4 and the top of the adhesive layer 6 respectively using adhesive. The base layer 5 is made of a polymer material with shape memory function. The adhesive layer 6 is located on the innermost layer and is made of a sticky adhesive. The bottom of the adhesive layer 6 is bonded to the backing paper 3. More specifically, the thermal paper label 2 is composed of multiple layers: thermal coating 4, base layer 5, and adhesive layer 6. The outermost thermal coating 4 can undergo a chemical reaction when heated, thus developing color and recording information. When the printhead of the thermal printer heats up and comes into contact with the thermal coating 4, the heat causes the thermal dye and developer to react, generating visible images or text and completing the printing process. The intermediate layer base layer 5 is made of a polymer material with shape memory function. Within a certain temperature range, the shape memory polymer material can "remember" the preset shape. When the thermal paper label 2 is peeled off from the backing paper 3, under the action of ambient temperature (or after slight heating, such as 40-60℃), the molecular chains inside the material move and rearrange, restoring to the preset curled shape, thereby realizing the self-curling function. The bottom adhesive layer 6 is made of a sticky adhesive, which enables the thermal paper label 2 to be pasted on the surface of various objects.
[0023] refer to Figure 2 and Figure 3 The easy-tear structure includes an easy-tear opening 7 at one end of the backing paper 3, which is triangular in shape. A guide groove 8, rectangular in shape, is also provided on the surface of the backing paper 3 at the edge of the thermal paper label 2. A special release coating 9, made of silicone release agent, is also coated on the surface of the backing paper 3. More specifically, by providing the easy-tear opening 7 at one end of the backing paper 3, and by increasing the contact area and friction between the fingers and the backing paper 3, it is easier for the user to grip and begin the tearing action. Simultaneously, the special release coating 9 reduces the adhesion between the adhesive layer 6 of the thermal paper label 2 and the backing paper 3, making the tearing process smoother. Furthermore, the guide groove 8 on the surface of the backing paper 3 guides the label to peel off in a straight line when the thermal paper label 2 begins to be torn, preventing the label from shifting or twisting during the tearing process.
[0024] The implementation principle of a self-rolling thermal paper label according to this application embodiment is as follows: The thermal paper label 2 is composed of multiple layers, including a thermal coating 4, a base layer 5, and an adhesive layer 6. When the print head of the thermal printer heats up and comes into contact with the thermal coating 4, the heat causes the thermal dye and developer to react, generating visible images or text, thus completing the printing process. After the thermal paper label 2 is peeled off from the base paper 3, under the influence of ambient temperature, the molecular chains inside the material move and rearrange, restoring to a preset curled shape, thereby achieving the self-rolling function. In use, the operator first locates the base paper. The easy-tear opening 7 is set at one end of the 3. Then, pinch the inclined side of the triangular easy-tear opening 7 with your fingers and apply a steady pulling force along the surface of the backing paper 3. Since the release coating 9 reduces the adhesion between the adhesive layer 6 of the thermal paper label 2 and the backing paper 3, only a small force is needed to separate the backing paper 3 from the thermal paper label 2. During the tearing process, the staff can follow the guide groove 8 and apply a steady pulling force to successfully peel the thermal paper label 2 off the backing paper 3 completely. The thermal paper label 2 will not be twisted or shifted and can be directly used for subsequent operations such as pasting.
[0025] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A heat sensitive paper self-wound label characterized by: The label includes a self-rolling label body (1), a thermal paper label (2), and a backing paper (3). The self-rolling label body (1) is composed of multiple thermal paper labels (2) wrapped together with the backing paper (3). The thermal paper label (2) is placed on top of the backing paper (3). The thermal paper label (2) adopts a composite layered structure, which includes a thermal coating layer (4), a base layer (5), and an adhesive backing layer (6). The backing paper (3) is also provided with an easy-tear structure to facilitate the tearing of the thermal paper label (2).
2. A heat shrink label according to claim 1, wherein: The thermal coating (4) is disposed on the outermost layer and directly contacts the print head. The thermal coating (4) is composed of chemical substances such as thermal dye, color developer, and filler.
3. A heat shrink label according to claim 2, wherein: The base layer (5) is set in the middle layer. The top and bottom of the base layer (5) are bonded to the bottom of the heat-sensitive coating (4) and the top of the backing layer (6) by adhesive. The base layer (5) is made of a polymer material with shape memory function.
4. A heat shrink label according to claim 3, wherein: The adhesive backing layer (6) is disposed in the innermost layer. The adhesive backing layer (6) is made of a sticky adhesive. The bottom of the adhesive backing layer (6) is adhered to the backing paper (3).
5. A heat shrink label according to claim 1, wherein: The easy-tear structure includes an easy-tear opening (7) provided at one end of the base paper (3), and the easy-tear opening (7) is triangular in shape.
6. A heat shrink label according to claim 5, wherein: The surface of the base paper (3) is provided with a guide groove (8) at the edge of the thermal paper label (2), and the guide groove (8) is rectangular in shape.
7. A heat shrink label according to claim 6, wherein: The surface of the base paper (3) is also coated with a special release coating (9), which is made of silicone release agent.