Label tape and label assembly
By incorporating a backing layer and a release layer with different thermal conductivity in the label tape, the risk of peeling between the release layer and the backing layer during the heat transfer process is reduced, solving the problem of easy peeling of the printed layer during heating, and achieving more stable printing results and higher durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN JINGCHEN INTELLIGENT IDENTIFICATION TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-23
AI Technical Summary
Existing glue-free label paper is prone to peeling off the printed layer during the printing and heating process, resulting in poor print quality.
Design a label tape comprising a backing layer and a release layer. The thermal conductivity of the backing layer is less than that of the release layer, and the heat is mainly concentrated on the release layer. The difference in thermal conductivity between the release layer and the backing layer reduces the risk of peeling. The release layer is a light-transmitting layer for easy observation and is connected by electrostatic or adhesive bonding.
During the heat transfer process, the risk of peeling between the release layer and the substrate is reduced, the stability and accuracy of printing are improved, the characters are transferred clearly, and the durability and user experience of the label tape are enhanced.
Smart Images
Figure CN224392214U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of label paper technology, and more particularly to a label tape and label assembly. Background Technology
[0002] Printers can print characters on label paper. In related technologies, there are many types of label paper. One type of label paper is attached by electrostatic adsorption without the need for glue. This type of label paper includes a printing layer and a backing layer. The printing layer is attached to the backing layer by electrostatic adsorption. The printer can transfer characters on the printing layer. However, the printing layer on this type of label paper is prone to peeling off during the printing process when heated. Utility Model Content
[0003] This application provides a label tape and label assembly that can reduce the peeling of the release layer on the label tape when heated.
[0004] In a first aspect, embodiments of this application provide a label tape, comprising:
[0005] Supporting the bottom layer;
[0006] A release layer is disposed on the substrate and is used to contact the heat transfer ribbon and transfer characters.
[0007] The thermal conductivity of the base layer is less than that of the release layer.
[0008] In some embodiments of this application, the structural strength of the backing layer is greater than the structural strength of the release layer.
[0009] In some embodiments of this application, the substrate further includes a backing paper layer and a coating layer stacked together, the coating layer being located between the backing paper layer and the release layer, and the coefficient of friction of the coating layer on the side facing the release layer being less than the coefficient of friction of the backing paper layer.
[0010] In some embodiments of this application, the release layer has a first adsorption surface that contacts the coating layer, the coating layer has a second adsorption surface that is away from the backing paper layer, the first adsorption surface contacts the second adsorption surface, and the area of the first adsorption surface is smaller than the area of the second adsorption surface.
[0011] In some embodiments of this application, the stiffness of the base paper layer is greater than the stiffness of the coating layer.
[0012] In some embodiments of this application, the peeling layer includes a plurality of label units, which are spaced apart along the length of the label strip.
[0013] In some embodiments of this application, a peeling gap is formed between two adjacent label units, and the size of the peeling gap is greater than 2 mm.
[0014] In some embodiments of this application, the label unit is square, and the corners of the label unit are rounded.
[0015] In some embodiments of this application, the release layer is a light-transmitting layer.
[0016] In some embodiments of this application, along a direction perpendicular to the paper surface of the label tape, the ratio of the projected area of the release layer to the projected area of the backing layer is a, where a satisfies 80% ≤ a ≤ 98%.
[0017] In some embodiments of this application, the thickness of the backing layer is greater than 0.1 mm; and / or the thickness of the release layer is greater than 0.1 mm and less than 0.3 mm.
[0018] Secondly, embodiments of this application also provide a label assembly, including a roll and a label strip as described in any of the above embodiments, the label strip being wound around the periphery of the roll.
[0019] In some embodiments of this application, the backing layer has a first surface and a second surface disposed opposite to each other, the first surface being disposed toward the roll, and the release layer being disposed on the second surface.
[0020] In some embodiments of this application, the diameter of the roll is greater than or equal to 8 mm.
[0021] Based on the label tape and label assembly in this application embodiment, during the heat transfer process, the heat is mainly concentrated in the release layer because the thermal conductivity of the substrate is small and the thermal conductivity of the release layer is large. This facilitates the transfer of characters onto the release layer by the heat transfer tape. The heat transfer on the substrate is slow, thereby reducing the adhesion between the release layer and the substrate due to temperature rise during long printing processes. In other words, this embodiment reduces the risk of peeling between the release layer and the substrate during the printing process by setting the difference in thermal conductivity between the release layer and the substrate. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1This is a schematic cross-sectional view of the label tape in one embodiment of this application;
[0024] Figure 2 This is a schematic diagram of the label tape structure in one embodiment of this application;
[0025] Figure 3 This is a schematic diagram of the structure of a label component in one embodiment of this application.
[0026] Figure label:
[0027] 100. Label tape;
[0028] 10. Base layer; 11. Backing paper layer; 12. Coating layer; 121. Second adsorption surface; 13. First surface; 14. Second surface;
[0029] 20. Peel-off layer; 21. First adsorption surface; 22. Tag unit;
[0030] 200. Tag component;
[0031] 30. Roll. Detailed Implementation
[0032] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0033] In related technologies, there are many types of label paper. If glue is used to bond the label paper, it is easy to leave glue residue. There is a type of label paper that does not require glue because it is adsorbed by electrostatics. This type of label paper includes a printing layer and a backing layer. The printing layer is adsorbed onto the backing layer by electrostatics, and the printer can transfer characters on the printing layer. However, the printing layer on this type of label is prone to peeling off during the printing and heating process, which can easily cause wrinkles in the printing layer and affect the printing effect.
[0034] Regarding the above situation, firstly, please refer to [link / reference needed]. Figure 1 This application proposes a label tape 100, including a backing layer 10 and a release layer 20. The release layer 20 is disposed on the backing layer 10 and is used to contact the heat transfer tape and transfer characters. The thermal conductivity of the backing layer 10 is less than that of the release layer 20.
[0035] Specifically, the coating on the heat transfer ribbon can be transferred to the release layer 20 after being heated. The heat transfer ribbon can be a carbon ribbon; the release layer 20 and the base layer 10 can be connected by electrostatic adsorption; or, the release layer 20 and the base layer 10 can also be connected by adhesive.
[0036] It should be noted that during the heat transfer process of the label tape 100, due to the lower thermal conductivity of the backing layer 10 and the higher thermal conductivity of the release layer 20, the heat is mainly concentrated on the release layer 20. This facilitates the transfer of characters onto the release layer 20 by the heat transfer ribbon. Heat transfer on the backing layer 10 is slow, thus reducing the likelihood of decreased adhesion between the release layer 20 and the backing layer 10 due to temperature increases during prolonged printing. In other words, this embodiment reduces the risk of peeling between the release layer 20 and the backing layer 10 during printing by setting a difference in thermal conductivity between them. The backing layer 10 can be made of a low thermal conductivity material to effectively slow down heat transfer and reduce the risk of heat-induced peeling of the release layer 20.
[0037] In some embodiments of this application, the release layer 20 is a light-transmitting layer, so that the release layer 20 will not obscure the content below the release layer 20 during use, which is beneficial to the user's use and observation.
[0038] In some embodiments of this application, such as Figure 1 As shown, the thickness of the bottom layer 10 is d1, which is greater than 0.1mm. This helps to ensure the heat insulation of the bottom layer 10. Preferably, the thickness d1 of the bottom layer 10 is between 0.13mm and 0.19mm. For example, the thickness d1 of the bottom layer 10 is 0.16mm.
[0039] In some embodiments of this application, such as Figure 1 As shown, the thickness of the release layer 20 is d2, which is greater than 0.1mm and less than 0.3mm. This gives the release layer 20 a certain thickness, thus providing a certain shaping ability. It can not only support the coating of the heat transfer ribbon and ensure clear character transfer, but also reduce the folding or bending of the release layer 20 under the influence of gravity, air flow, static electricity and other factors, thereby improving the overall durability and printing stability of the label tape 100.
[0040] In some embodiments of this application, the structural strength of the backing layer 10 is greater than that of the release layer 20, ensuring that the backing layer 10 can provide stable support for the release layer 20 during the printing process, reducing wrinkles and deformation of the backing layer 10, thereby improving the overall durability and printing quality of the label tape 100.
[0041] Please continue reading Figure 1In some embodiments of this application, the backing layer 10 further includes a backing paper layer 11 and a coating layer 12 stacked together. The coating layer 12 is located between the backing paper layer 11 and the release layer 20. The coefficient of friction of the side of the coating layer 12 facing the release layer 20 is less than the coefficient of friction of the backing paper layer 11.
[0042] Specifically, the backing paper layer 11 and the coating layer 12 are tightly bonded together to form a stable support structure. The side of the coating layer 12 facing the release layer 20 has a lower coefficient of friction, meaning that the surface of the side of the coating layer 12 that contacts the release layer 20 is relatively smooth. This can increase the electrostatic bonding force between the coating layer 12 and the release layer 20, reduce the lifting or displacement of the release layer 20 during printing, and ensure smooth printing and accurate character positioning. At the same time, the backing paper layer 11 has a higher coefficient of friction, which helps to provide stable resistance during the label tape 100 conveying process, prevents the label tape 100 from slipping, and further improves printing quality and efficiency.
[0043] Furthermore, the stiffness of the base paper layer 11 is greater than that of the coating layer 12, where stiffness refers to the ability of a material or structure to resist elastic deformation when subjected to force.
[0044] It should be noted that during the printing process, the rubber rollers in the printer generate tension when conveying the label tape 100. The high rigidity of the backing paper layer 11 effectively resists these external forces, thereby ensuring the shape stability of the coating layer 12 and the release layer 20, reducing interlayer misalignment caused by external forces, and ensuring that the label tape 100 remains flat during printing, thus improving printing accuracy and stability. The backing paper layer 11 can be made of high-strength fiber material, while the coating layer 12 can be made of soft and smooth polymer material. The combination of the two ensures overall mechanical strength and optimizes the frictional characteristics between the layers.
[0045] Furthermore, in some embodiments of this application, such as Figures 1-2 As shown, the release layer 20 has a first adsorption surface 21 that contacts the coating layer 12, and the coating layer 12 has a second adsorption surface 121 that is away from the base paper layer 11. The first adsorption surface 21 contacts the second adsorption surface 121, and the area of the first adsorption surface 21 is smaller than the area of the second adsorption surface 121.
[0046] Specifically, the coating layer 12 has a larger area, while the release layer 20 has a smaller area. This means the outer periphery of the coating layer 12 extends beyond the outer periphery of the release layer 20. This allows the coating layer 12 to more fully cover the release layer 20 when the first adsorption surface 21 contacts the second adsorption surface 121, enhancing the adhesion between them and preventing displacement of the release layer 20 during printing, thus ensuring the accuracy and stability of character transfer. Simultaneously, the extension of the outer periphery of the coating layer 12 beyond the outer periphery of the release layer 20 also prevents external dust and stains from penetrating between the coating layer 12 and the release layer 20, keeping the release layer 20 clean.
[0047] In some embodiments, the coating layer 12 may be made of a waterproof material to serve as a waterproof layer, preventing moisture from penetrating between the coating layer 12 and the release layer 20 and causing the release layer 20 to lift. Even if water enters part of the backing paper layer 11, the presence of the coating layer 12 will not affect the bonding force between the coating layer 12 and the release layer 20.
[0048] Please see Figure 2 In some embodiments of this application, the peeling layer 20 includes a plurality of label units 22, which are spaced apart along the length of the label strip 100.
[0049] Specifically, the label tape 100 is stored in a wound form. The length direction of the label tape 100 refers to the direction of extension of the longer side of the label tape 100 after it is stretched into a straight line (e.g., ...). Figure 2 (As shown). The peeling layer 20 is divided into multiple label units 22, each of which is independent and has clear edges, making it easy to accurately position and separate during the printing process. When it needs to be cut for use, the label strip 100 can be cut along the gaps between the label units 22, so that the peeling layer 20 can be stored together with the backing layer 10 after printing, ensuring the integrity of each label unit 22 and the neatness of its edges, and avoiding the situation where the peeling layer 20 cannot be stored separately after printing.
[0050] In some embodiments, the outer periphery of the substrate 10 extends beyond the outer periphery of the label unit 22, forming a protective edge. This protective edge effectively prevents the label unit 22 from being damaged by external factors during printing and cutting, ensuring the integrity and printing quality of the label unit 22, while also facilitating the separation and storage of the label unit 22.
[0051] Furthermore, in some embodiments of this application, such as Figure 2 As shown, a peeling gap d3 is formed between two adjacent label units 22, and the size of the peeling gap d3 is greater than 2mm. It can be understood that the setting of the peeling gap can effectively prevent the adhesion between adjacent label units 22, ensuring that each label unit 22 can be easily separated during peeling, without affecting the printing effect and user experience.
[0052] Furthermore, such as Figure 2 As shown, the label unit 22 is square, and the corners of the label unit 22 are rounded. It is easy to understand that the rounded corners of the peeling layer 20 not only make it easier to peel off the peeling layer 20 from the rounded corners, but also prevent sharp corners from scratching the user, thus improving the safety and convenience of use.
[0053] In addition, the rounded corners can reduce wear and tear on the label unit 22 during storage and transportation, extend its service life, and enhance the overall aesthetics of the label unit 22, making each label unit 22 more convenient to peel off and use. It also improves the overall durability and user experience of the label tape 100.
[0054] In some embodiments of this application, along the direction perpendicular to the paper surface of the label tape 100, the ratio of the projected area of the release layer 20 to the projected area of the backing layer 10 is 'a', where 'a' satisfies 80% ≤ a ≤ 98%. This ensures that the coverage area of the release layer 20 on the backing layer 10 is moderate, facilitating the peeling of the release layer 20. Furthermore, 'a' satisfies 80% ≤ a ≤ 98%, thus preventing insufficient printing area due to the release layer 20 being too small, and preventing the overall stability of the label tape 100 from being affected by the release layer 20 being too large. This is beneficial for optimizing the usage efficiency and printing effect of the label unit 22.
[0055] Secondly, please see Figures 2-3 This application also provides a label assembly 200, including a roll 30 and a label strip 100 as described in any of the above embodiments. The label strip 100 is wound around the periphery of the roll 30, that is, the label strip 100 is wound and stored around the periphery of the roll 30. During the printing process, the label strip 100 can be smoothly unwound to ensure printing continuity. The design of the roll 30 facilitates storage and transportation, reduces the risk of damage to the label strip 100, and improves ease of use.
[0056] Please see Figure 3 In some embodiments of this application, the bottom layer 10 has a first surface 13 and a second surface 14 disposed opposite to each other, the first surface 13 being disposed toward the roll 30, and the peeling layer 20 being disposed on the second surface 14.
[0057] Specifically, the first surface 13 of the backing layer 10 is in close contact with the inner wall of the roll 30. When the roll is wound, the backing layer 10 separates the release layer 20 from the roll 30, effectively preventing the release layer 20 from directly contacting the roll 30, reducing friction damage, and ensuring the flatness and printing quality of the label tape 100.
[0058] In some embodiments, the diameter of the roll 30 is greater than or equal to 8 mm to ensure the stability and support of the roll 30, facilitating the smooth unfolding and printing operation of the label tape 100. If the diameter of the roll 30 is less than 8 mm, the curvature of the label tape 100 after winding will be too large, easily causing the release layer 20 to separate from the backing layer 10. At the same time, a reasonable design of the roll 30 diameter helps reduce stress concentration on the label tape 100 during winding, extending the service life of the label tape 100 and improving overall efficiency.
[0059] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A label tape, characterized in that, include: Supporting the bottom layer; A release layer is disposed on the substrate and is used to contact the heat transfer ribbon and transfer characters. The thermal conductivity of the base layer is less than that of the release layer.
2. The label tape according to claim 1, characterized in that, The structural strength of the base layer is greater than that of the release layer.
3. The label tape according to claim 1, characterized in that, The substrate further includes a backing paper layer and a coating layer stacked together. The coating layer is located between the backing paper layer and the release layer. The coefficient of friction of the coating layer on the side facing the release layer is less than the coefficient of friction of the backing paper layer.
4. The label tape according to claim 3, characterized in that, The release layer has a first adsorption surface that contacts the coating layer, and the coating layer has a second adsorption surface that is away from the base paper layer. The first adsorption surface contacts the second adsorption surface, and the area of the first adsorption surface is smaller than the area of the second adsorption surface.
5. The label tape according to claim 3, characterized in that, The stiffness of the base paper layer is greater than that of the coating layer.
6. The label tape according to claim 1, characterized in that, The peeling layer includes multiple label units, which are spaced apart along the length of the label strip.
7. The label tape according to claim 6, characterized in that, A peeling gap is formed between two adjacent label units, and the size of the peeling gap is greater than 2 mm.
8. The label tape according to claim 6, characterized in that, The label unit is square, and the corners of the label unit are rounded.
9. The label tape according to claim 1, characterized in that, The peeling layer is a light-transmitting layer.
10. The label tape according to claim 1, characterized in that, Along the direction perpendicular to the paper surface of the label tape, the ratio of the projected area of the release layer to the projected area of the backing layer is a, where a satisfies 80% ≤ a ≤ 98%.
11. The label tape according to claim 1, characterized in that, The thickness of the base layer is greater than 0.1 mm; and / or the thickness of the release layer is greater than 0.1 mm and less than 0.3 mm.
12. A label component, characterized in that, It includes a reel and a label tape as claimed in any one of claims 1 to 11, the label tape being wound around the periphery of the reel.
13. The label component according to claim 12, characterized in that, The bottom layer has a first surface and a second surface disposed opposite to each other, the first surface being disposed toward the roll, and the release layer being disposed on the second surface.
14. The label component according to claim 12, characterized in that, The diameter of the roll is greater than or equal to 8 mm.