A fitted breathable elastic film

Abstract

The present invention discloses a fitted breathable elastic film, comprising a film body, wherein the film body comprises a base film and a surface film attached to the base film, wherein the surface film is an elastic film and the elasticity of the surface film is greater than that of the base film, and the base film can be broken after being stretched to a certain extent, so that the film body is cracked, and the film body has a breathable state with the cracks. The present invention can be stretched to a certain extent to cause the base film to break and then the surface film attached to the base film to break, so that the film body can crack and have a breathable function, and the surface film will not break and can maintain elasticity, and then the elasticity of the film body can be retained. After the film body is pasted on the elastic fabric, it has breathable performance after being stretched after the first wear, etc., and it will not disappear in subsequent use, and can effectively ensure the breathability of clothing, bags, etc., improve wearing comfort, and is more convenient to process and use.

Description

Technical Field

[0001] The invention relates to an elastic adhesive film. Background Art

[0002] Elastic films are often used in clothing, bags, etc. These elastic films can enhance the elasticity of fabrics, etc. Some elastic films have hot-melt adhesive properties and can be pasted to fabrics, etc., thereby reducing the amount of stitching and facilitating processing. Existing elastic films are usually TPU hot-melt adhesive films. These elastic films are usually not breathable. Even if some films have microporous breathability, after hot-melt bonding, the micropores on the elastic films are often blocked and lose breathability, thus affecting the breathability of corresponding clothing, bags, etc., especially for elastic underwear where elastic films are widely used, which will seriously affect the wearing comfort. The higher the hot-melt temperature, the more serious the blockage, and if the hot-melt temperature is too low, it will affect the adhesion firmness between the elastic film and the fabric. Summary of the invention

[0003] In order to solve the above problems, the object of the present invention is to provide a fitted breathable elastic film that can ensure ventilation effect and is easy to process and use.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A fitted breathable elastic film comprises a film body, wherein the film body comprises a base film and a surface film attached to the base film, wherein the surface film is an elastic film and the elasticity of the surface film is greater than that of the base film, and the base film can be broken after being stretched to a certain extent, thereby causing cracks in the film body, and the film body has a breathable state with the cracks.

[0006] Preferably, the basement membrane is in a grid shape.

[0007] Preferably, the base film is a mesh film with a mesh size of 1 to 50 and a mesh area of ​​0.1 to 20 mm. 2 .

[0008] Preferably, the base film is a non-elastic film.

[0009] Preferably, the surface film is a hot melt adhesive film and is adhered to the base film by hot melting.

[0010] Preferably, the surface film is a TPU hot melt adhesive film or a modified polyester hot melt adhesive film.

[0011] Preferably, the base film is a HDPE hot melt adhesive film, a PA hot melt adhesive film, a PES hot melt adhesive film or a LDPE hot melt adhesive film.

[0012] Preferably, both ends of the base film are attached with the surface film.

[0013] Preferably, a protective film is attached to the outer end surface of the adhesive film body, and the protective film can be torn off from the adhesive film body.

[0014] Preferably, the thickness of the surface film is 1 to 3 μm, and the thickness of the base film is 2 to 5 μm.

[0015] The beneficial effect of the present invention is: in the present invention, since the elasticity of the surface film of the film body is greater than the elasticity of the base film, after being stretched to a certain extent, the base film can be ruptured and then the surface film attached to the base film can be ruptured, so that the film body can produce cracks and have a breathable function, and the surface film will not break and can maintain elasticity, and then the elasticity of the film body can be retained. In practical applications, after the film body is pasted on the elastic fabric, it can be stretched after the first wear, etc., so that the film body has breathable performance, and the breathable performance will not disappear in subsequent use, which can effectively ensure the breathability of clothing, luggage, etc., improve wearing comfort, and is more convenient to process and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0019] Figure 3 It is an exploded view of the present invention. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 3A fitted breathable elastic film includes a film body, which includes a base film 20 and a surface film 10 attached to the base film 20. The surface film 10 is an elastic film and the elasticity of the surface film 10 is greater than that of the base film 20. After the base film 20 is stretched to a certain extent, it can break and cause cracks in the film body. The film body has a breathable state with cracks. In the present invention, since the elasticity of the surface film 10 of the film body is greater than the elasticity of the base film 20, after being stretched to a certain extent, the base film 20 can be ruptured and then the surface film 10 attached to the base film 20 can be ruptured, so that the film body can produce cracks and have a breathable function, and the surface film 10 will not break and can maintain elasticity, and then the elasticity of the film body can be retained. In practical applications, after the film body is pasted on the elastic fabric, it can be stretched after the first wear, etc., so that the film body has breathable properties, and the breathable property will not disappear in subsequent use, which can effectively ensure the breathability of clothing, luggage, etc., improve wearing comfort, and is more convenient to process and use.

[0021] In the present invention, the base film 20 is preferably in a mesh shape, so that after the base film 20 is stretched to a certain extent, the mesh edges of the base film 20 can be broken, so that the cracks can be more evenly distributed on the main body of the film, ensuring that the air permeability of the main body of the film is similar. In this embodiment, the base film 20 is a mesh film, the mesh number of which is 1 to 50 meshes, and the mesh area of ​​which is 0.1 to 20 mm 2 The mesh film is a mature product in this field, which is easy to purchase and use. The film body made of the mesh film with this mesh size and mesh area can obtain relatively balanced air permeability and elasticity, and is particularly suitable for use in underwear products. Of course, in practical applications, the mesh size and mesh area of ​​the mesh film can also be flexibly adjusted according to needs. When the mesh area increases, the mesh size becomes smaller, and the number of cracks is relatively small, which will reduce the air permeability of the film body, but can increase the elasticity of the film body. Correspondingly, when the mesh surface decreases, the mesh size increases, and the number of cracks increases, thereby enhancing the air permeability. However, due to the increase in cracks on the surface film 10, the elasticity of the film body will be reduced.

[0022] In this embodiment, the base film 20 is a non-elastic film, which is convenient for generating cracks by stretching. Of course, in practical applications, the base film 20 may also be an elastic film, as long as its elasticity is less than that of the surface film 10.

[0023] In this embodiment, the surface film 10 is a hot melt adhesive film and is adhered to the base film 20 by hot melting, which is convenient for processing and manufacturing. When in use, the hot melt adhesive properties of the surface film can also be directly used to directly adhere to the fabric, which is convenient for the processing and manufacturing of clothes and easy to use. Of course, in actual applications, the surface film 10 can also use glue or apply hot melt adhesive to adhere to the fabric.

[0024] In the present invention, the surface film 10 can be made of TPU hot melt adhesive film or modified polyester hot melt adhesive film. These are commonly used materials in this field, with excellent elasticity and hot melt adhesive properties. Of course, in practical applications, the surface film 10 can also be made of other suitable materials. The base film 20 can be made of HDPE hot melt adhesive film or PA hot melt adhesive film or PES hot melt adhesive film or LDPE hot melt adhesive film, which is easier to stretch and tear to produce cracks, and is not easy to cause harm to human skin. At the same time, it can also achieve hot melt bonding function, which is safe and environmentally friendly. In practical applications, the base film 20 can also be made of other suitable materials.

[0025] In this embodiment, both ends of the base film 20 are attached with a surface film 10, which can bond the two layers of fabric together. It is suitable for the processing of most underwear and other clothing and is convenient to use. Of course, in actual applications, the surface film 10 can be attached to only one end of the base film 20 as needed.

[0026] A protective film (not shown in the figure) is attached to the outer end surface of the film body. The protective film can be torn off from the film body. The film body is usually thin. On the one hand, it can shape the film body to prevent wrinkles on the film body. On the other hand, it can also protect the film body to prevent scratches, cracks, or adhesion of dust and debris to the film body. The protective film can be made of commonly used release paper and other materials.

[0027] In this embodiment, the thickness of the surface film 10 is 1-6 μm, and the thickness of the base film 20 is 1-10 μm, which can meet the bonding requirements of most fabrics and can reduce the thickness of the film body to ensure structural strength, making the bonded fabric more firm and beautiful.

[0028] The above description is only a preferred implementation mode of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means belongs to the protection scope of the present invention.

Claims

1. A fitted breathable elastic film, comprising a film body, characterized in that: The adhesive film body comprises a base film (20) and a surface film (10) attached to the base film (20); the surface film (10) is attached to both ends of the base film (20) so as to bond two layers of fabric together; the surface film (10) is an elastic film and the elasticity of the surface film (10) is greater than that of the base film (20); the base film (20) can be broken after being stretched to a certain extent, thereby causing cracks in the adhesive film body; and the adhesive film body has a breathable state with the cracks present; The base film (20) is in a grid shape, and after the base film (20) is stretched to a certain extent, the grid edges of the base film (20) may be broken; Wherein, the base film (20) is a non-elastic film; the surface film (10) is a hot-melt adhesive film and is adhered to the base film (20) by hot-melt method; The base film (20) is a mesh film, the mesh number of which is 1 to 50, and the mesh area of ​​which is 0.1 to 20 mm²; The surface film (10) is a TPU hot melt adhesive film or a modified polyester hot melt adhesive film; The base film (20) is a HDPE hot melt adhesive film, a PA hot melt adhesive film, a PES hot melt adhesive film, or a LDPE hot melt adhesive film; Among them, since the elasticity of the surface film (10) of the adhesive film body is greater than the elasticity of the base film (20), after being stretched to a certain extent, the base film (20) can be ruptured and the surface film (10) attached to the base film (20) can be ruptured accordingly, so that the adhesive film body can produce cracks and have a breathable function, and the surface film (10) will not break and can maintain elasticity, thereby retaining the elasticity of the adhesive film body.

2. The conformable breathable elastic film according to claim 1, characterized in that: A protective film is attached to the outer end surface of the adhesive film body, and the protective film can be torn off from the adhesive film body.

3. The conformable breathable elastic film according to claim 1, characterized in that: The thickness of the surface film (10) is 1 to 6 μm, and the thickness of the base film (20) is 1 to 10 μm.

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