Three-in-one adhesive film for enhancing supporting force

Abstract

The utility model relates to the technical field of adhesive films, and discloses a three-in-one adhesive film applying enhanced supporting force, which comprises a PTU layer, a high-temperature-resistant adhesive layer and a hot-melt paper layer, the PTU layer, the high-temperature-resistant adhesive layer and the hot-melt paper layer are integrally formed in sequence through a hot-pressing process, and gradient bonding structures are formed among the interfaces of the layers. According to the three-in-one adhesive film for enhancing the supporting force, a gradient bonding composite structure of the PTU layer, the high-temperature-resistant adhesive layer and the hot melting paper layer is adopted, a traditional sewing process is replaced, high-strength bonding without sewing lines is achieved, the interface bonding strength of materials of all layers is optimized through the gradient bonding process, and the bonding strength of the materials of all the layers is improved. The adhesive film has the advantages of high temperature resistance (-30 DEG C to 150 DEG C), high tensile strength (the TPU layer is more than or equal to 30MPa) and bidirectional supporting force, the deformation resistance and durability of clothes are obviously improved, and meanwhile, the production process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of adhesive film technology, specifically a three-in-one adhesive film for enhancing support. Background Technology

[0002] In traditional garment manufacturing, sewing is the main method for joining fabrics, but it has significant drawbacks. Sewing requires high-precision sewing equipment and manual operation, which is inefficient and costly. The seam threads can easily puncture the fabric, causing fiber breakage. After long-term use, the fabric is prone to cracking or deformation along the seam. If adhesive films are used, existing adhesive films mostly adopt a single-layer or simple multilayer structure (such as hot melt adhesive directly composited with the substrate). The bonding interface strength is singular, and it is prone to delamination and failure under high temperature (>100℃) or low temperature (<-20℃) conditions. Furthermore, it lacks support for the garment and cannot meet the dynamic fit requirements of sportswear. Utility Model Content

[0003] The purpose of this invention is to provide a three-in-one adhesive film that enhances support, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a three-in-one adhesive film for enhancing support, comprising:

[0005] The PTU layer, high-temperature resistant adhesive layer, and hot-melt paper layer are integrally formed by hot pressing, and a gradient bonding structure is formed between the interfaces of each layer.

[0006] As a further improvement of this utility model, the surface of the hot-melt paper layer has a uniformly distributed microporous structure, the pore size of the microporous structure on the hot-melt paper layer is 10-50μm, and the porosity is 20%-40%.

[0007] As a further improvement of this utility model, the outer surface of the PTU layer is provided with regularly arranged protrusions, and the texture height is 0.1-0.5mm.

[0008] As a further improvement of this utility model, the inner surface of the PTU layer is provided with a first groove, and the outer surface of the high-temperature resistant adhesive layer is provided with a first protrusion that matches the first groove.

[0009] As a further improvement of this utility model, the inner surface of the high-temperature resistant adhesive layer is provided with a second groove, and the outer surface of the hot melt paper layer is provided with a second protrusion that matches the second groove.

[0010] As a further improvement of this utility model, the outer side of the hot melt paper layer extends upward from the outer edge of the PTU layer and the high temperature resistant adhesive layer to a position flush with the outer surface of the PTU layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This application enhances the support of the three-in-one adhesive film. Through the gradient bonding composite structure of PTU layer, high-temperature resistant adhesive layer and hot melt paper layer, it replaces the traditional sewing process to achieve high-strength bonding with seamless seams. The gradient bonding process optimizes the interfacial bonding strength of each layer of materials, so that the adhesive film has high temperature resistance (-30℃ to 150℃), high tensile strength (TPU layer ≥30MPa) and bidirectional support, which significantly improves the garment's resistance to deformation and durability, while simplifying the production process.

[0013] 2. This application features a three-in-one adhesive film that enhances support. A hot-melt paper layer is provided at the outer edges of the PTU layer and the high-temperature resistant adhesive layer. The hot-melt paper layer wraps around the outer edges of the PTU layer and the high-temperature resistant adhesive layer, improving the overall adhesive strength and preventing the three-in-one adhesive film from delaminating at the edges. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a three-in-one adhesive film for enhancing support according to this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the top cover sealing cloth of the present invention, which uses a three-in-one adhesive film to enhance support, in the open state.

[0017] In the diagram: 1. PTU layer; 2. High-temperature resistant adhesive layer; 3. Hot melt paper layer; 4. Protrusion; 5. First groove; 6. First protrusion; 7. Second groove; 8. Second protrusion. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] Please see Figures 1-2 This utility model provides a three-in-one adhesive film for enhancing support, characterized in that it comprises:

[0020] The PTU layer 1, high-temperature resistant adhesive layer 2, and hot-melt paper layer 3 are sequentially integrally formed through a hot-pressing process, creating a gradient bonding structure between the interfaces of each layer. This gradient bonding composite structure replaces traditional sewing, achieving a high-strength bond without seams. The gradient bonding process optimizes the interfacial bonding strength of each layer, giving the adhesive film high temperature resistance (-30℃ to 150℃), high tensile strength TPU layer (≥30MPa), and bidirectional support, significantly improving the garment's deformation resistance and durability while simplifying the production process.

[0021] The surface of the hot-melt paper layer 3 has a uniformly distributed microporous structure with a pore size of 10-50 μm and a porosity of 20%-40%. This microporous structure, with its pore size of 10-50 μm and porosity of 20%-40%, significantly improves the breathability of the film while maintaining structural strength, reduces overall weight, and avoids the stuffy feeling caused by the dense structure of traditional films. It is suitable for sportswear requiring high breathability.

[0022] The outer surface of PTU layer 1 has regularly arranged protrusions 4 with a texture height of 0.1-0.5mm. The regularly arranged protrusions 4 on the outer surface of PTU layer 1, with a height of 0.1-0.5mm, increase the contact area and friction coefficient with the fabric, effectively preventing relative slippage between the adhesive film and the clothing fabric. At the same time, the stress dispersion effect of the texture reduces local stress concentration and avoids cracking of the adhesive film or damage to the fabric caused by repeated bending.

[0023] A first groove 5 is formed on the inner surface of the PTU layer 1, and a first protrusion 6 that matches the first groove 5 is formed on the outer surface of the high-temperature resistant adhesive layer 2. The presence of the first groove 5 and the first protrusion 6 between the PTU layer 1 and the high-temperature resistant adhesive layer 2 improves the overall tensile strength.

[0024] The inner surface of the high-temperature resistant adhesive layer 2 is provided with a second groove 7, and the outer surface of the hot-melt paper layer 3 is provided with a second protrusion 8 that matches the second groove 7. The high-temperature resistant adhesive layer 2 and the first groove 5 support are connected by the second groove 7 and the second protrusion 8, which improves the connection strength.

[0025] The outer side of the hot melt paper layer 3 extends upward from the outer edges of the PTU layer 1 and the high-temperature resistant adhesive layer 2 to a position flush with the outer surface of the PTU layer 1. The hot melt paper layer 3, located at the outer edges of the PTU layer 1 and the high-temperature resistant adhesive layer 2, wraps around these edges, improving overall adhesive strength and preventing the three-in-one adhesive film from delaminating at the edges.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-in-one adhesive film for enhancing support, characterized in that, include: The PTU layer (1), high-temperature resistant adhesive layer (2), and hot melt paper layer (3) are integrally formed by hot pressing process, and a gradient bonding structure is formed between the interfaces of each layer.

2. The three-in-one adhesive film for enhancing support according to claim 1, characterized in that, The surface of the hot melt paper layer (3) has a uniformly distributed microporous structure, and the pore size of the microporous structure on the hot melt paper layer (3) is 10-50μm, and the porosity is 20%-40%.

3. The three-in-one adhesive film for enhancing support according to claim 1, characterized in that, The outer surface of the PTU layer (1) is provided with regularly arranged protrusions (4), and the texture height is 0.1-0.5mm.

4. The three-in-one adhesive film for enhancing support according to claim 1, characterized in that, The inner surface of the PTU layer (1) is provided with a first groove (5), and the outer surface of the high-temperature resistant adhesive layer (2) is provided with a first protrusion (6) that is adapted to the first groove (5).

5. The three-in-one adhesive film for enhancing support according to claim 1, characterized in that, The inner surface of the high-temperature resistant adhesive layer (2) is provided with a second groove (7), and the outer surface of the hot melt paper layer (3) is provided with a second protrusion (8) that matches the second groove (7).

6. The three-in-one adhesive film for enhancing support according to claim 1, characterized in that, The outer side of the hot melt paper layer (3) extends upward from the outer edge of the PTU layer (1) and the high temperature resistant adhesive layer (2) to a position flush with the outer surface of the PTU layer (1).

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