High-temperature-resistant masking tape
By incorporating expansion grooves and expansion layers into the masking tape, the problem of substrate deformation caused by thermal expansion and contraction is solved, improving adhesion stability and smoothness, and enhancing performance under high-temperature conditions.
Patent Information
- Application Number
- CN202423041161.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Due to thermal expansion and contraction during prolonged use, the substrate of masking tape is prone to deformation, which affects the adhesion of the adhesive and leads to unstable adhesion.
The masking tape incorporates expansion grooves and expansion layers. The expansion layer fills the expansion grooves, providing space for the substrate to expand, preventing bulging caused by thermal expansion and contraction, improving adhesion stability, and enhancing bonding strength through silicone pressure-sensitive adhesive.
It effectively prevents the masking tape base from bulging due to thermal expansion and contraction, improves the flatness and adhesion stability of the tape, and enhances its performance under high temperature conditions.
Smart Images
Figure CN223535023U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of masking tape, and in particular relates to a high-temperature resistant masking tape. Background Technology
[0002] Masking tape is a roll of adhesive tape made primarily from masking paper and pressure-sensitive adhesive. It is made by coating the masking paper with pressure-sensitive adhesive and the other side with an anti-sticking material. It has the characteristics of high temperature resistance, good resistance to chemical solvents, high adhesion, softness and conformability, and no residue after tearing. It is commonly known in the industry as masking paper pressure-sensitive adhesive tape.
[0003] However, during long-term use, the masking tape is susceptible to temperature changes due to thermal expansion and contraction, resulting in slight deformation. Repeated deformation over a long period can affect the adhesion of the adhesive. Therefore, a high-temperature resistant masking tape is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a high-temperature resistant masking tape. The masking paper base layer has room to expand, which avoids the problem of bulging caused by long-term thermal expansion and contraction of the masking paper base layer, and improves the stability of adhesion. At the same time, the expansion layer in the middle fills the expansion groove, increases the flatness of the masking tape, reduces the impact of gaps on the use of the masking tape, and solves the existing technical problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] A high-temperature resistant masking tape includes: a masking paper base layer, the masking paper base layer comprising multiple fixed sections and an expansion layer located between the fixed sections, each fixed section having an expansion groove at both ends and a groove at the bottom of each expansion groove, each groove containing a second adhesive layer, the expansion layer being located within the expansion groove between two adjacent fixed sections and fixed by the second adhesive layer; the expansion grooves on the masking tape provide space for the masking paper base layer to expand, preventing the masking paper base layer from bulging due to long-term thermal expansion and contraction, and improving adhesion stability; the expansion layer is made of the same material as the fixed sections.
[0007] The bottom of the masking tape base layer is bonded with a first adhesive layer.
[0008] As a further embodiment of this utility model, a third adhesive layer is bonded to the surface of the masking paper base layer, and a release paper layer is bonded to the surface of the third adhesive layer.
[0009] As a further improvement of this invention, the release paper layer is silicone oil release paper.
[0010] As a further improvement of this invention, gaps are provided between the two ends of the expansion layer and the expansion groove.
[0011] As a further embodiment of this invention, the first adhesive layer, the second adhesive layer, and the third adhesive layer are all silicone pressure-sensitive adhesives.
[0012] In this application, when in use, the masking tape is adhered to the application location through the first adhesive layer. Under high temperature conditions, the masking tape base layer expands due to thermal expansion and contraction. The gaps set between the fixed sections allow the masking tape base layer to expand, avoiding the problem of bulging caused by long-term thermal expansion and contraction, thus improving the stability of adhesion. At the same time, the middle expansion layer fills the expansion groove, increasing the flatness of the masking tape and reducing the impact of gaps on the use of the masking tape.
[0013] The embodiments of this utility model have the following beneficial effects:
[0014] In this invention, by setting an expansion groove on the masking tape, the masking tape base layer has room to expand, avoiding the problem of the masking tape base layer bulging due to long-term thermal expansion and contraction, and improving the adhesion stability.
[0015] In this invention, the expansion layer is designed to fill the expansion groove, thereby increasing the flatness of the masking tape and reducing the impact of gaps on the use of the masking tape.
[0016] In this invention, the masking tape base layer has room to expand, which avoids the problem of bulging caused by long-term thermal expansion and contraction, and improves the stability of adhesion. At the same time, the middle expansion layer fills the expansion groove, increases the flatness of the masking tape, and reduces the impact of gaps on the use of the masking tape.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;
[0020] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;
[0021] Figure 3 This is an exploded structural diagram of an embodiment of the present invention.
[0022] In the diagram: 1. Masking tape base layer; 2. Release paper layer; 3. First adhesive layer; 4. Stretch layer; 5. Second adhesive layer; 6. Third adhesive layer; 7. Stretch groove; 8. Groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.
[0025] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.
[0026] Example 1
[0027] Please see Figures 1-3 As shown, this embodiment provides a high-temperature resistant masking tape, including: a masking base 1, the masking base 1 including multiple fixed sections and a telescopic layer 4 located between the fixed sections, both ends of the fixed sections are provided with telescopic grooves 7, the two fixed sections are spaced apart, the bottom of the telescopic grooves 7 are provided with grooves 8, and a second adhesive layer 5 is provided in each groove 8, the telescopic layer 4 is located in the telescopic grooves 7 between two adjacent fixed sections and is fixed by the second adhesive layer 5, the telescopic layer 4 is made of the same material as the fixed sections, under high temperature conditions, the masking base 1 is affected by thermal expansion and contraction and expands, and the gaps between the fixed sections allow the masking base 1 to have room to expand, avoiding the problem of the masking base 1 bulging due to long-term thermal expansion and contraction, and improving the stability of adhesion;
[0028] The bottom of the masking tape base 1 is bonded with a first adhesive layer 3, which is used to fix the masking tape.
[0029] Example 2
[0030] Improvements based on Example 1: See Appendix Figures 1-3 The surface of the masking tape base layer 1 is bonded with a third adhesive layer 6, and the surface of the third adhesive layer 6 is bonded with a release paper layer 2. The release paper layer 2 is used to prevent the masking tape from sticking together when it is wound.
[0031] In this invention, the release paper layer 2 is silicone oil release paper, which has elasticity and high temperature resistance, making it convenient for use at high temperatures.
[0032] In particular, gaps are provided between the two ends of the expansion layer 4 and the expansion groove 7. The gaps are designed to facilitate the expansion and contraction of the masking tape during thermal expansion and contraction.
[0033] It should be noted that the first adhesive layer 3, the second adhesive layer 5, and the third adhesive layer 6 are all silicone pressure-sensitive adhesives. Silicone pressure-sensitive adhesives have high temperature resistance and are easy to use.
[0034] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A high-temperature resistant masking tape, characterized in that, include: The masking paper base layer (1) includes multiple fixed sections and an expansion layer (4) located between the fixed sections. Both ends of the fixed sections are provided with expansion grooves (7), and the bottom of the expansion grooves (7) is provided with grooves (8). A second adhesive layer (5) is provided in each groove (8). The expansion layer (4) is located in the expansion grooves (7) between two adjacent fixed sections and is fixed by the second adhesive layer (5). The expansion layer (4) is made of the same material as the fixed sections. The bottom of the masking tape base layer (1) is bonded with a first adhesive layer (3).
2. The high-temperature resistant masking tape as described in claim 1, characterized in that, The surface of the masking paper base layer (1) is bonded with a third adhesive layer (6), and the surface of the third adhesive layer (6) is bonded with a release paper layer (2).
3. The high-temperature resistant masking tape as described in claim 2, characterized in that, The release paper layer (2) is silicone oil release paper.
4. The high-temperature resistant masking tape as described in claim 1, characterized in that, The two ends of the expansion layer (4) are provided with gaps from the expansion groove (7).
5. The high-temperature resistant masking tape as described in claim 1, characterized in that, The first adhesive layer (3), the second adhesive layer (5), and the third adhesive layer (6) are all silicone pressure-sensitive adhesives.