Reinforced PET film
By introducing the design of reinforcement layer and connecting layer into the PET film, the problems of insufficient strength and poor stability of the PET film are solved, high-strength and stable connection is achieved, and the compact structure and stable attachment of the film are ensured.
Patent Information
- Application Number
- CN202422765203.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Existing PET films have limited strength and poor stability, and are prone to wrinkles when used in multiple layers, resulting in unstable use.
The reinforcement layer design is adopted, including reinforcement strips and connecting layers. The reinforcement strips are connected to the inner layer to enhance the overall strength of the membrane, and the connecting layer is filled with stable glue to achieve a fixed connection between the inner and outer layers.
The overall strength and stability of the PET film are improved, ensuring stable adhesion between the film and the covered object, with a compact structure and stable use.
Smart Images
Figure CN223314619U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of new materials and relates to a reinforced PET film. Background Art
[0002] PET film (Polyethylene Terephthalate film) is a high-performance plastic film with excellent mechanical properties, thermal stability, chemical stability, and transparency. PET film is widely used in packaging, electronics, printing, labeling, medical and other fields.
[0003] Existing PET films typically have a single structure, resulting in limited strength. PET films are manufactured uniformly, so the thickness of the finished film is fixed. To improve its strength, those skilled in the art typically stack two layers of PET film. However, since the two layers are not connected, the upper and lower layers may wrinkle during use, resulting in poor stability. Summary of the Invention
[0004] The purpose of the utility model is to provide a reinforced PET film with high stability and compact structure in order to solve the above problems in the prior art.
[0005] The purpose of this utility model can be achieved through the following technical solutions:
[0006] A reinforced PET film includes an outer layer and an inner layer made of PET material, and also includes a reinforcement layer. The outer layer is located on the upper part of the inner layer, and the reinforcement layer is located between the outer layer and the inner layer, and the reinforcement layer connects the outer layer and the inner layer. It is characterized in that the reinforcement layer includes a long strip-shaped reinforcement strip and a long sheet-shaped connecting layer. The number of the above-mentioned reinforcement strips is several, and the several reinforcement strips are evenly arranged along the length direction of the inner layer and fixedly connected to the inner layer. The two sides of the above-mentioned connecting layer are respectively fixedly connected to the outer layer and the inner layer, and the above-mentioned reinforcement strips are coated between the connecting layer and the inner layer.
[0007] In the above-mentioned reinforced PET film, the reinforcement strip is a long strip of mesh cloth.
[0008] In the above-mentioned reinforced PET film, the connecting layer is a long sheet of mesh cloth.
[0009] In the above-mentioned reinforced PET film, the mesh number of the reinforcing strip is higher than the mesh number of the connecting layer.
[0010] In the above-mentioned reinforced PET film, the reinforcement strips are arranged obliquely, and the inclination angles of two adjacent reinforcement strips are the same, but the inclination directions are opposite.
[0011] In the above-mentioned reinforced PET film, the inclination angle between the reinforcement strip and the edge of the inner layer is 60-70 degrees.
[0012] In the above-mentioned reinforced PET film, two adjacent reinforcement strips form a reinforcement part, and the number of the reinforcement parts is several, and the several reinforcement parts are evenly distributed and connected to the inner layer along the length direction. The several reinforcement parts form a reinforcement unit on the inner layer, and the number of the reinforcement units is several, and the several reinforcement units are arranged in parallel along the width direction of the inner layer.
[0013] In the above-mentioned reinforced PET film, the inclination directions of the air reinforcement strips in two adjacent reinforcement units are opposite.
[0014] In the above-mentioned reinforced PET film, the inner side of the outer layer has a concave avoidance notch facing the reinforcement strip, the outer side of the outer layer has an arched air portion facing the avoidance notch, and the outer side of the connecting layer located above the reinforcement strip is embedded in the avoidance notch.
[0015] In the reinforced PET film, the thickness of the outer layer is the same as that of the inner layer.
[0016] Compared with the existing technology, the reinforced PET film has better strength because the mesh number of the reinforcement strip in the reinforcement layer is higher than the mesh number of the connecting layer, and the connecting layer with a relatively large hole size can stably fill the glue on both sides of the connecting layer. That is to say, under the action of the connecting layer, there can be an appropriate amount of glue between the outer layer and the inner layer, and the appropriate amount of glue can stably fix the outer layer and the inner layer together. The entire reinforced PET film not only has relatively high strength, but also has a relatively compact structure.
[0017] At the same time, the arched portion of the outer side of the outer layer facing the reinforcement strip increases the friction resistance of the outer layer, so that it can be stably attached to the covered object. Its stability is relatively high and it has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the reinforced PET film.
[0019] Figure 2 It is a schematic diagram of the top view structure of the reinforced PET film.
[0020] In the figure, 1, outer layer; 1a, avoidance recess; 1b, arched part; 2, inner layer; 3, reinforcement strip; 4, connecting layer. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] like Figure 1 and Figure 2 As shown, the reinforced PET film includes an outer layer 1 and an inner layer 2 made of PET material, and also includes a reinforcement layer. The outer layer 1 is located on the upper part of the inner layer 2, and the reinforcement layer is located between the outer layer 1 and the inner layer 2, and the reinforcement layer connects the outer layer 1 with the inner layer 2. The reinforcement layer includes a long strip-shaped reinforcement strip 3 and a long sheet-shaped connecting layer 4. The number of the above-mentioned reinforcement strips 3 is several, and the several reinforcement strips 3 are evenly arranged along the length direction of the inner layer and fixedly connected to the inner layer. The two sides of the above-mentioned connecting layer are respectively fixedly connected to the outer layer and the inner layer, and the above-mentioned reinforcement strips are coated between the connecting layer and the inner layer.
[0025] In this embodiment, the reinforcement strip is a long strip of mesh cloth, and the connecting layer is a long sheet of mesh cloth. In addition, the mesh number of the reinforcement strip is higher than that of the connecting layer.
[0026] The reinforcement strips are arranged obliquely, and the inclination angles of two adjacent reinforcement strips are the same, but the inclination directions are opposite.
[0027] The inclination angle between the reinforcement strip and the inner layer edge is 60 degrees. Depending on the actual situation, an inclination angle of 65 degrees is also feasible.
[0028] It can be seen that since the mesh count of the reinforcement strip is higher than that of the connecting layer, the mesh size on the reinforcement strip is smaller than the mesh size on the connecting layer.
[0029] The reinforcement strips with smaller mesh sizes have higher strength.
[0030] The connection layer with a relatively large mesh size can stably store an appropriate amount of glue. Therefore, the connection layer with an appropriate amount of glue can effectively improve the connection stability between the outer layer and the inner layer. The reinforcement strip effectively improves the strength of the entire membrane.
[0031] Two adjacent reinforcement strips form a reinforcement part, and the number of the reinforcement parts is several, and the several reinforcement parts are evenly distributed and connected to the inner layer along the length direction. The several reinforcement parts form a reinforcement unit on the inner layer, and the number of the reinforcement units is several, and the several reinforcement units are arranged in parallel along the width direction of the inner layer.
[0032] Such a structure can ensure that the strength of each position of the entire membrane is moderate.
[0033] The inclination directions of the air reinforcement strips in two adjacent reinforcement units are opposite.
[0034] The inner side of the outer layer has a concave avoidance notch facing the reinforcement strip, the outer side of the outer layer has an arched air portion facing the avoidance notch, and the outer side of the connecting layer located above the reinforcement strip is embedded in the avoidance notch.
[0035] Such a structure can make the arched parts on the outside of the outer layer arranged in an orderly manner, which not only improves the friction resistance between the membrane and the covered object, but also makes the structure more compact.
[0036] The thickness of the outer layer is the same as that of the inner layer.
[0037] Since the mesh number of the reinforcement strips in the reinforcement layer of the reinforced PET film is higher than that of the connecting layer, the reinforcement strips have better strength, and the connecting layer with a relatively large hole size can stably fill the glue on both sides of the connecting layer. In other words, under the action of the connecting layer, an appropriate amount of glue can be provided between the outer layer and the inner layer, and the appropriate amount of glue can stably fix the outer layer and the inner layer together. The entire reinforced PET film not only has relatively high strength, but also has a relatively compact structure.
[0038] At the same time, the arched portion of the outer side of the outer layer facing the reinforcement strip increases the friction resistance of the outer layer, so that it can be stably attached to the covered object. Its stability is relatively high and it has high practical value.
[0039] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.
Claims
1. A reinforced PET film comprising an outer layer and an inner layer of PET material, and further comprising a reinforcement layer, wherein the outer layer is located on top of the inner layer, the reinforcement layer is located between the outer layer and the inner layer, and the reinforcement layer connects the outer layer and the inner layer, characterized in that: The reinforcement layer includes a long strip-shaped reinforcement strip and a long sheet-shaped connecting layer. The number of the above-mentioned reinforcement strips is several, and the several reinforcement strips are evenly distributed along the length direction of the inner layer and fixedly connected to the inner layer. The two sides of the above-mentioned connecting layer are respectively fixedly connected to the outer layer and the inner layer, and the above-mentioned reinforcement strips are wrapped between the connecting layer and the inner layer.
2. The reinforced PET film according to claim 1, characterized in that The reinforcement strip is a long strip of mesh cloth.
3. The reinforced PET film according to claim 1, characterized in that The connecting layer is a long sheet of mesh cloth.
4. The reinforced PET film according to claim 2, characterized in that The mesh number of the reinforcing strip is higher than the mesh number of the connecting layer.
5. The reinforced PET film according to claim 4, characterized in that The reinforcement strips are arranged obliquely, and the inclination angles of two adjacent reinforcement strips are the same, but the inclination directions are opposite.
6. The reinforced PET film according to claim 5, characterized in that The inclination angle between the reinforcement strip and the edge of the inner layer is 60-70 degrees.
7. The reinforced PET film according to claim 6, characterized in that Two adjacent reinforcement strips form a reinforcement part, and the number of the reinforcement parts is several, and the several reinforcement parts are evenly distributed and connected to the inner layer along the length direction. The several reinforcement parts form a reinforcement unit on the inner layer, and the number of the reinforcement units is several, and the several reinforcement units are arranged in parallel along the width direction of the inner layer.
8. The reinforced PET film according to claim 7, characterized in that The inclination directions of the air reinforcement strips in two adjacent reinforcement units are opposite.
9. The reinforced PET film according to claim 8, characterized in that The inner side of the outer layer has a concave avoidance notch facing the reinforcement strip, the outer side of the outer layer has an arched air portion facing the avoidance notch, and the outer side of the connecting layer located above the reinforcement strip is embedded in the avoidance notch.
10. The reinforced PET film according to claim 9, characterized in that: The thickness of the outer layer is the same as that of the inner layer.