A type of pressure-resistant hot melt flat adhesive tape

Abstract

This application discloses a pressure-resistant hot-melt flat adhesive tape, belonging to the field of adhesive tape technology. It includes a tape base layer, a hot-melt adhesive layer, a reinforcing film assembly, an interlaced film assembly, and a surface layer. The hot-melt adhesive layer is disposed on the lower surface of the tape base layer, a reinforcing film assembly is disposed on the upper surface of the tape base layer, an interlaced film assembly is disposed in the middle of the reinforcing film assembly, and a surface layer is disposed on top of the reinforcing film assembly. The interlaced film assembly includes a first interlaced film layer and a second interlaced film layer arranged alternately in a horizontal direction, forming a misalignment cavity between the first and second interlaced film layers. The reinforcing film assembly is used to clamp and fix the first and second interlaced film layers, and also serves to engage with the misalignment cavity. This application significantly improves the overall compressive strength and other properties of the tape by setting the reinforcing film assembly and the interlaced film assembly between the hot-melt adhesive layer and the surface layer, and the overall surface of the tape has a flat structure, providing better adaptability.

Description

Technical Field

[0001] This application relates to the field of adhesive tape technology, and in particular, to a pressure-resistant hot melt flat adhesive tape. Background Technology

[0002] The information provided in this section is for the purpose of generally presenting the background of this application. To the extent described in this section, the work of the currently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art of this application.

[0003] Hot melt adhesive tape is a type of solvent-free, pollution-free, and environmentally friendly adhesive tape that is increasingly favored and widely used in industries such as footwear, packaging, wood processing, automotive, textiles, machinery and electronics, and aerospace. Conventional hot melt adhesives only have adhesive properties; when used, they are simply placed on the surface of the objects to be bonded, fixed in position, and then heated and pressurized to achieve bonding.

[0004] In the prior art, such as the Chinese patent publication CN222524434U, a high-strength hot melt adhesive tape for packaging includes a tape body, which includes a base film layer. A reinforcing layer is laminated to the upper surface of the base film layer, consisting of several linearly arranged reinforcing lines parallel to the length direction of the tape body. An upper film layer is laminated to the upper surface of the base film layer, with raised edges formed on the upper film layer outside the reinforcing lines. Several recessed edges are linearly arranged on the bottom surface of the base film layer. This invention, by designing the upper film layer and setting linearly arranged reinforcing lines between the upper film layer and the base film layer, can greatly improve the strength and tensile properties of the tape, thus improving the packaging quality. Through the design of the raised and recessed edges, after the tape roll is made, the raised and recessed edges are layered, with the recessed edges providing space for the raised edges, ensuring the tightness between adjacent layers of tape and the compactness of the finished tape roll.

[0005] However, the surface of existing hot melt adhesive tapes is not smooth enough, and there are raised stripes, which is not conducive to improving compressive strength and is not suitable for some application scenarios that require high tape flatness. Utility Model Content

[0006] In view of at least one of the above technical problems, this application provides a pressure-resistant hot melt flat adhesive tape, which can significantly improve the overall compressive strength and other properties of the tape by setting a reinforcing film assembly and an interlaced film assembly between the hot melt adhesive layer and the surface layer, and the overall surface of the tape has a flat structure, which has better adaptability.

[0007] According to one aspect of this application, a pressure-resistant hot melt flat adhesive tape is provided, comprising an adhesive base layer, a hot melt adhesive layer, a reinforcing film assembly, an interlaced film assembly, and a surface layer:

[0008] A hot melt adhesive layer is disposed on the lower surface of the tape base layer, and a reinforcing film assembly is disposed on the upper surface of the tape base layer. An interlaced film assembly is disposed in the middle of the reinforcing film assembly, and a surface layer is disposed on the top of the reinforcing film assembly. The interlaced film assembly includes a first interlaced film layer and a second interlaced film layer arranged in a horizontally interlaced manner. A misalignment cavity is formed between the first interlaced film layer and the second interlaced film layer. The reinforcing film assembly is used to clamp and fix the first interlaced film layer and the second interlaced film layer, and the reinforcing film assembly is also used to engage with the misalignment cavity.

[0009] In some embodiments of this application, both the first interlaced membrane layer and the second interlaced membrane layer have a zigzag structure. The first interlaced membrane layer includes a first top platform and a second bottom platform, with the first end of the first top platform resting on the top surface of the first end of the second bottom platform. The second interlaced membrane layer includes a second top platform and a second bottom platform, with the first end of the second top platform resting on the top surface of the first end of the second bottom platform. The first top platform is used to rest on the top surface of the second end of the second bottom platform, and the second top platform is used to rest on the top surface of the second end of the first bottom platform. A misaligned cavity is formed between the first top platform and the second top platform, and a misaligned cavity is formed between the first bottom platform and the second bottom platform.

[0010] In some embodiments of this application, the top surface of the first top platform is flush with the top surface of the second top platform, and the bottom surface of the first bottom platform is flush with the bottom surface of the second bottom platform.

[0011] In some embodiments of this application, the reinforcing membrane assembly includes a first reinforcing membrane layer and a second reinforcing membrane layer that are spaced apart from each other in a vertical direction, and a limiting cavity is formed between the first reinforcing membrane layer and the second reinforcing membrane layer. The limiting cavity is used to limit the staggered membrane assembly.

[0012] In some embodiments of this application, a first snap-fit ​​portion is provided on the side of the first reinforcing membrane layer facing the staggered membrane assembly, and the first snap-fit ​​portion is used to snap-fit ​​with the misaligned cavity; a second snap-fit ​​portion is provided on the side of the second reinforcing membrane layer facing the staggered membrane assembly, and the second snap-fit ​​portion is used to snap-fit ​​with the misaligned cavity.

[0013] In some embodiments of this application, the tape base layer comprises a polypropylene film.

[0014] In some embodiments of this application, the surface layer includes a wear-resistant film.

[0015] This application has the following beneficial effects:

[0016] This application's anti-compression hot melt flat tape features a reinforcing film assembly on the upper surface of the tape base layer, with an interlaced film assembly positioned in the middle of the reinforcing film assembly. The interlaced film assembly comprises a first interlaced film layer and a second interlaced film layer arranged sequentially in a horizontal direction, forming a misalignment cavity between the first and second interlaced film layers. The reinforcing film assembly engages with the misalignment cavity, clamping and fixing the first and second interlaced film layers, effectively improving the overall strength of the tape, enhancing its compressive strength, and maintaining its overall flatness to ensure better adaptability.

[0017] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above simultaneously. In addition to the purposes, features, and advantages described above, this application also has other purposes, features, and advantages. The application will be further described in detail below with reference to figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the reinforced membrane assembly according to a preferred embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the staggered membrane assembly according to a preferred embodiment of this application;

[0022] Legend: 1. Adhesive tape base layer; 2. Hot melt adhesive layer; 3. Reinforcing film assembly; 31. First reinforcing film layer; 311. First snap-fit ​​part; 32. Second reinforcing film layer; 321. Second snap-fit ​​part; 4. Interlaced film assembly; 41. First interlaced film layer; 411. First top platform; 412. First bottom platform; 42. Second interlaced film layer; 421. Second top platform; 422. Second bottom platform; 43. Misalignment cavity; 5. Surface layer. Detailed Implementation

[0023] The embodiments of this application are described in detail below with reference to the accompanying drawings; however, this application may be implemented in a variety of different ways as defined and covered below.

[0024] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application; Figure 2 This is a schematic diagram of the structure of the reinforced membrane assembly according to a preferred embodiment of this application; Figure 3 This is a schematic diagram of the structure of the staggered membrane assembly according to a preferred embodiment of this application.

[0025] A pressure-resistant hot melt flat adhesive tape includes a tape base layer 1, a hot melt adhesive layer 2, a reinforcing membrane assembly 3, an interlaced membrane assembly 4, and a surface layer 5.

[0026] A hot melt adhesive layer 2 is disposed on the lower surface of the tape base layer 1, a reinforcing film assembly 3 is disposed on the upper surface of the tape base layer 1, an interlaced film assembly 4 is disposed in the middle of the reinforcing film assembly 3, and a surface layer 5 is disposed on the top of the reinforcing film assembly 3. The interlaced film assembly 4 includes a first interlaced film layer 41 and a second interlaced film layer 42 arranged in a horizontally interlaced manner, and a misalignment cavity 43 is formed between the first interlaced film layer 41 and the second interlaced film layer 42. The reinforcing film assembly 3 is used to clamp and fix the first interlaced film layer 41 and the second interlaced film layer 42, and the reinforcing film assembly 3 is also used to engage with the misalignment cavity 43.

[0027] This application's anti-compression hot melt flat tape features a reinforcing film assembly 3 on the upper surface of the tape base layer 1, with an interlaced film assembly 4 positioned in the middle of the reinforcing film assembly 3. The interlaced film assembly 4 includes a first interlaced film layer 41 and a second interlaced film layer 42 arranged sequentially in a horizontal direction, forming a misalignment cavity 43 between the first interlaced film layer 41 and the second interlaced film layer 42. The reinforcing film assembly 3 engages with the misalignment cavity 43, clamping and fixing the first interlaced film layer 41 and the second interlaced film layer 42. This effectively improves the overall strength of the tape, enhances its compressive strength, and maintains the overall flatness of the tape, ensuring better adaptability.

[0028] Preferably, please refer to Figure 1 As shown, both the first interlaced membrane layer 41 and the second interlaced membrane layer 42 have a zigzag structure. The first interlaced membrane layer 41 includes a first top platform 411 and a second bottom platform 412, with the first end of the first top platform 411 resting on the top surface of the first end of the second bottom platform 412. The second interlaced membrane layer 42 includes a second top platform 421 and a second bottom platform 422, with the first end of the second top platform 421 resting on the top surface of the first end of the second bottom platform 422. The first top platform 411 is used to rest on the top surface of the second end of the second bottom platform 422, and the second top platform 421 is used to rest on the top surface of the second end of the first bottom platform 412. A misalignment cavity 43 is formed between the first top platform 411 and the second top platform 421, and a misalignment cavity 43 is formed between the first bottom platform 412 and the second bottom platform 422.

[0029] Understandably, by designing both the first interlaced film layer 41 and the second interlaced film layer 42 as zigzag structures, the first interlaced film layer 41 and the second interlaced film layer 42 can be staggered and overlapped with each other in the horizontal direction, while keeping the top and bottom surfaces of the first interlaced film layer 41 and the second interlaced film layer 42 flush, without producing protrusions or bumps, which helps to ensure the overall flatness of the tape. At the same time, the misalignment cavity 43 formed between the first interlaced film layer 41 and the second interlaced film layer 42 can cooperate with the reinforcing film assembly 3 to form a snap-fit ​​connection, which greatly improves the connection stability between the reinforcing film assembly 3 and the interlaced film assembly 4, making the overall integrity of the two stronger and effectively improving the overall strength of the tape.

[0030] Preferably, please refer to Figure 2 and 3 As shown, the top surface of the first top platform 411 is flush with the top surface of the second top platform 421, and the bottom surface of the first bottom platform 412 is flush with the bottom surface of the second bottom platform 421.

[0031] It is understandable that by overlapping the first interlaced film layer 41 and the second interlaced film layer 42, and keeping the top surface of the first top platform 411 flush with the top surface of the second top platform 421, and the bottom surface of the first bottom platform 412 flush with the bottom surface of the second bottom platform 421, the top and bottom surfaces of the first interlaced film layer 41 and the second interlaced film layer 42 are both flat, thereby ensuring the overall flatness of the tape.

[0032] Preferably, please refer to Figure 2 As shown, the reinforcing membrane assembly 3 includes a first reinforcing membrane layer 31 and a second reinforcing membrane layer 32 that are arranged at intervals along the vertical direction. A limiting cavity is formed between the first reinforcing membrane layer 31 and the second reinforcing membrane layer 32. The limiting cavity is used to limit the interlaced membrane assembly 4.

[0033] In this preferred embodiment, the first reinforcing membrane layer 31 is provided with a first snap-fit ​​portion 311 on the side facing the interlaced membrane assembly 4, and the first snap-fit ​​portion 311 is used to snap-fit ​​with the misalignment cavity 43; the second reinforcing membrane layer 32 is provided with a second snap-fit ​​portion 321 on the side facing the interlaced membrane assembly 4, and the second snap-fit ​​portion 321 is used to snap-fit ​​with the misalignment cavity 43.

[0034] Understandably, in order to improve the tightness and strength of the connection between the reinforcing membrane assembly 3 and the staggered membrane assembly 4, a protruding first snap-fit ​​portion 311 is provided on the side of the first reinforcing membrane layer 31 facing the staggered membrane assembly 4, and a protruding second snap-fit ​​portion 321 is provided on the side of the second reinforcing membrane layer 32 facing the staggered membrane assembly 4. The first snap-fit ​​portion 311 can engage with the misalignment cavity 43 on one side, and the second snap-fit ​​portion 321 can engage with the misalignment cavity 43 on the other side, thereby achieving a limiting snap-fit ​​engagement and effectively improving the tightness and strength of the connection between the reinforcing membrane assembly 3 and the staggered membrane assembly 4.

[0035] Preferably, the tape base layer 1 comprises a polypropylene film. The surface layer 5 comprises an abrasion-resistant film.

[0036] Understandably, the tape base layer 1 comprises a polypropylene film of existing technology, while the surface layer 5 comprises a wear-resistant film of existing technology. This reduces the overall material cost of the tape while ensuring its overall basic performance.

[0037] Optionally, the first interlaced film layer 41, the second interlaced film layer 42, the first reinforcing film layer 31 and the second reinforcing film layer 32 all include existing polymer materials such as PET (polyester) or polyimide to improve the overall tensile strength, abrasion resistance and weather resistance of the tape.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make various improvements, modifications, or variations without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered as protected by this application.

Claims

1. A pressure-resistant hot-melt flat adhesive tape, characterized in that, It includes a base layer of adhesive tape (1), a hot melt adhesive layer (2), a reinforcing membrane assembly (3), a staggered membrane assembly (4), and a surface layer (5): A hot melt adhesive layer (2) is disposed on the lower surface of the tape base layer (1), a reinforcing film assembly (3) is disposed on the upper surface of the tape base layer (1), an interlaced film assembly (4) is disposed in the middle of the reinforcing film assembly (3), and a surface layer (5) is disposed on the top of the reinforcing film assembly (3). The interlaced film assembly (4) includes a first interlaced film layer (41) and a second interlaced film layer (42) arranged in a horizontal direction. A misalignment cavity (43) is formed between the first interlaced film layer (41) and the second interlaced film layer (42). The reinforcing film assembly (3) is used to clamp and fix the first interlaced film layer (41) and the second interlaced film layer (42), and the reinforcing film assembly (3) is also used to engage with the misalignment cavity (43).

2. The compression-resistant hot melt flat adhesive tape according to claim 1, characterized in that, The first interlaced membrane layer (41) and the second interlaced membrane layer (42) are both zigzag structures. The first interlaced membrane layer (41) includes a first top platform (411) and a first bottom platform (412). The first end of the first top platform (411) is attached to the top surface of the first end of the second bottom platform (422). The second interlaced membrane layer (42) includes a second top platform (421) and a second bottom platform (422). The first end of the second top platform (421) is attached to the top surface of the first end of the first bottom platform (412). The first top platform (411) is attached to the top surface of the second end of the second bottom platform (422), and the second top platform (421) is attached to the top surface of the second end of the first bottom platform (412). A misaligned cavity (43) is formed between the first top platform (411) and the second top platform (421), and a misaligned cavity (43) is formed between the first bottom platform (412) and the second bottom platform (422).

3. The compression-resistant hot melt flat adhesive tape according to claim 2, characterized in that, The top surface of the first top platform (411) is flush with the top surface of the second top platform (421), and the bottom surface of the first bottom platform (412) is flush with the bottom surface of the second bottom platform (422).

4. The compression-resistant hot melt flat adhesive tape according to claim 1, characterized in that, The reinforcing membrane assembly (3) includes a first reinforcing membrane layer (31) and a second reinforcing membrane layer (32) that are arranged at a relative interval in the vertical direction. A limiting cavity is formed between the first reinforcing membrane layer (31) and the second reinforcing membrane layer (32), and the limiting cavity is used to limit the staggered membrane assembly (4).

5. The compression-resistant hot melt flat adhesive tape according to claim 4, characterized in that, The first reinforcing membrane layer (31) has a first snap-fit ​​portion (311) on the side facing the staggered membrane assembly (4), which is used to snap-fit ​​with the misaligned cavity (43); the second reinforcing membrane layer (32) has a second snap-fit ​​portion (321) on the side facing the staggered membrane assembly (4), which is used to snap-fit ​​with the misaligned cavity (43).

6. The pressure-resistant hot melt flat adhesive tape according to claim 1, characterized in that, The tape base layer (1) includes a polypropylene film.

7. The compression-resistant hot melt flat adhesive tape according to claim 1, characterized in that, The surface layer (5) includes a wear-resistant film.

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