PVC (polyvinyl chloride) color-changing self-repairing coating for automobile coating film structure

Abstract

The utility model relates to the technical field of car cover films, and particularly discloses a PVC (polyvinyl chloride) color-changing car cover film structure self-repairing coating which comprises a release film, a pressure-sensitive adhesive layer, a lower base film layer, an upper base film layer, a colored PVC layer, a repairing layer and a protective film which are sequentially distributed, the lower base film layer and the upper base film layer jointly form a base film, a trapezoidal concave part is arranged at one end, attached to the upper base film layer, of the lower base film layer, and the concave part is matched with a convex part in the upper base film layer; a frosted particle layer is arranged on the outer surface of the protective film. The frosted particle layer is arranged on the outer surface of the protective film, fingerprints can be prevented from being directly attached to the outer surface of the protective film due to the existence of particles, so that the fingerprints cannot be attached to the automobile cover film, the colored PVC layer is arranged on the upper side of the base film, the colored PVC layer is made of colored PVC materials, the color of the colored PVC layer can be changed according to requirements, and the color of the colored PVC layer can be changed according to requirements. The method is used for satisfying hobbies of different customers and can cater to diversified demands of the market.

Description

Technical Field

[0001] The utility model belongs to the technical field of car cover films, and specifically relates to a self-repairing coating of a PVC color-changing car cover film structure. Background Art

[0002] Car cover film is a transparent protective film used to protect the car paint surface, also known as invisible car cover or paint protection film (PPF).

[0003] In a Chinese patent with publication number CN 215250556 U, a color-changing self-repairing car cover film with an optically dazzling effect is disclosed, which includes: a release layer, a repair layer, a base film layer, a light-changing glue layer, a PVC black / white film layer, a pressure-sensitive adhesive layer and a release layer. The base film layer is a transparent PVC film, a repair layer is provided on top of the base film layer, a first release layer is provided on top of the repair layer, a light-changing glue layer is provided on the bottom of the base film layer, a PVC black / white film layer is provided on the bottom of the light-changing glue layer, a pressure-sensitive adhesive layer is provided on the bottom of the PVC black / white film layer, and a release layer is provided below the pressure-sensitive adhesive layer.

[0004] However, the above-mentioned car cover film has the following problems when used:

[0005] When the film layer on the outer surface of the above-mentioned car cover film is used, due to frequent touching by users, a large number of fingerprints will remain on the film of the car cover film. These fingerprints remain on the surface of the protective film for a long time, which can easily cause local corrosion on the surface of the protective film, and at the same time make the surface of the car look messy, affecting the appearance of the vehicle; therefore, the present application proposes a PVC color-changing car cover film structure self-repairing coating. Utility Model Content

[0006] The purpose of the present invention is to provide a self-repairing coating with a PVC color-changing car cover membrane structure to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PVC color-changing car cover film structure self-repairing coating, comprising a release film, a pressure-sensitive adhesive layer, a lower base film layer, an upper base film layer, a colored PVC layer, a repair layer, and a protective film distributed in sequence;

[0008] The lower base membrane layer and the upper base membrane layer together form a base membrane, and a trapezoidal recessed portion is provided at one end where the lower base membrane layer and the upper base membrane layer are bonded, and the recessed portion cooperates with the protruding portion in the upper base membrane layer;

[0009] A frosted particle layer is provided on the outer surface of the protective film.

[0010] Preferably, the pressure-sensitive adhesive layer is made of a single-component acrylic pressure-sensitive adhesive, and the overall thickness of the pressure-sensitive adhesive layer is 5-30 μm.

[0011] Preferably, the overall thickness of the base film is 150-250 μm.

[0012] Preferably, the colored PVC layer is made of colored PVC material and has a thickness of 50-100 μm.

[0013] Preferably, the repair layer is made of a TPU protective film, and the thickness of the TPU protective film is 80-120 μm.

[0014] Preferably, the size of the particles in the frosted particle layer is 20.3 μm-30.5 μm, and the distance between two adjacent frosted particles is 32-46 μm.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model provides a frosted particle layer on the outer surface of the protective film. The size of the particles in the frosted particle layer is 20.3μm-30.5μm, and the distance between two adjacent frosted particles is 32-46μm. The presence of the particles can prevent fingerprints from directly adhering to the outer surface of the protective film, so that fingerprints will not adhere to the car cover film.

[0017] 2. The utility model divides the base membrane into a lower base membrane layer and an upper base membrane layer. The lower base membrane layer and the upper base membrane layer are formed successively. The thickness of the membrane formed in a single forming process is reduced compared to the base membrane formed as a whole. As the thickness is reduced, the difficulty of making the structure of each part of the membrane the same during forming is also reduced accordingly. The structure of each part of the formed membrane is relatively uniform. Afterwards, the lower base membrane layer and the upper base membrane layer are matched with each other through recessed parts and protruding parts, and the recessed parts in the lower base membrane layer are matched with the protruding parts of the upper base membrane layer one by one. The combined base membrane is relatively tightly connected as a whole, and the connecting end faces are not prone to relative displacement. The formed base membrane structure is relatively stable and more durable.

[0018] 3. The utility model provides a colored PVC layer on the upper side of the base film. The colored PVC layer adopts colored PVC material. The color of the colored PVC layer can be changed according to demand to meet the preferences of different customers and cater to the diversified needs of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the structural schematic diagrams of the self-repairing coating of the PVC color-changing car cover film structure in the utility model.

[0020] Figure 2 This is the second structural schematic diagram of the self-repairing coating of the PVC color-changing car cover film structure in the utility model.

[0021] In the figure: 1. Release film; 2. Pressure-sensitive adhesive layer; 3. Lower base film layer; 4. Upper base film layer; 5. Colored PVC layer; 6. Repair layer; 7. Protective film. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figure 1-Figure 2 A self-repairing coating with a PVC color-changing car cover film structure includes a release film 1, a pressure-sensitive adhesive layer 2, a lower base film layer 3, an upper base film layer 4, a colored PVC layer 5, a repair layer 6, and a protective film 7 distributed in sequence. The release film 1 is connected to the base film through the pressure-sensitive adhesive layer 2. When the car cover film is installed, the release film 1 needs to be separated from the pressure-sensitive adhesive layer 2, and then the base film and the car body are bonded together through the pressure-sensitive adhesive layer 2. The pressure-sensitive adhesive layer 2 uses a single-component acrylic pressure-sensitive adhesive with moderate peeling force and a viscosity of 1000-3000cps at 25°C. The overall thickness of the pressure-sensitive adhesive layer 2 is 5-30μm.

[0024] Furthermore, the lower base membrane layer 3 and the upper base membrane layer 4 together constitute a base membrane, and the overall thickness of the base membrane is 150-250 μm. A trapezoidal recessed portion is provided at one end where the lower base membrane layer 3 and the upper base membrane layer 4 are bonded, and the recessed portion cooperates with the protruding portion in the upper base membrane layer 4.

[0025] The base membrane is divided into a lower base membrane layer 3 and an upper base membrane layer 4. The lower base membrane layer 3 and the upper base membrane layer 4 are formed successively. The thickness of the membrane formed in a single forming process is reduced compared to the base membrane formed as a whole. As the thickness is reduced, the difficulty of making the structure of each part of the membrane the same during forming is also reduced accordingly. The structure of each part of the formed membrane is relatively uniform. Afterwards, the lower base membrane layer 3 and the upper base membrane layer 4 are matched with each other through recessed parts and protruding parts, and the recessed parts in the lower base membrane layer 3 are matched with the protruding parts of the upper base membrane layer 4 one by one. The combined base membrane is relatively tightly connected as a whole, and the connecting end faces are not prone to relative displacement. The formed base membrane structure is relatively stable and more durable.

[0026] A colored PVC layer 5 is placed on the upper side of the base film. This layer is made of colored PVC material with a thickness of 50-100 μm. The color of this layer can be changed as needed to meet the preferences of different customers and cater to the diverse needs of the market. The repair layer 6 is made of a TPU protective film with a thickness of 80-120 μm. Both the repair layer 6 and the other components are made of polymer materials. The principle of scratch repair by both of these is that heat causes the coating molecules within the TPU protective film to rearrange, eliminating the scratch and achieving self-repair.

[0027] In order to prevent fingerprints from adhering to the outer surface of the car model, a frosted particle layer is provided on the outer surface of the protective film 7. The size of the particles in the frosted particle layer is 20.3 μm-30.5 μm, and the distance between two adjacent frosted particles is 32-46 μm. The particles with this spacing can prevent fingerprints from adhering.

[0028] Working principle:

[0029] The base film is composed of a lower base film layer 3 and an upper base film layer 4, and the concave part in the lower base film layer 3 matches the convex part in the upper base film layer 4 one by one. One side of the base film is bonded to the release film 1 through the pressure-sensitive adhesive layer 2, and the other side is provided with a colored PVC layer 5 that can change color. A repair layer 6 with a self-repairing function is provided on the outer side, and a protective film 7 with a fingerprint prevention function is provided on the outside of the repair layer 6.

[0030] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC color-changing car cover membrane structure self-repair coating, characterized in that: It comprises a release film (1), a pressure-sensitive adhesive layer (2), a lower base film layer (3), an upper base film layer (4), a colored PVC layer (5), a repair layer (6), and a protective film (7) which are arranged in sequence; The lower base film layer (3) and the upper base film layer (4) together form a base film, and a trapezoidal recessed portion is provided at one end where the lower base film layer (3) and the upper base film layer (4) are bonded, and the recessed portion cooperates with the protruding portion in the upper base film layer (4); A frosted particle layer is provided on the outer surface of the protective film (7).

2. A PVC color-changing car cover film structure self-repairing coating according to claim 1, characterized in that: The pressure-sensitive adhesive layer (2) is made of a single-component acrylic pressure-sensitive adhesive, and the overall thickness of the pressure-sensitive adhesive layer (2) is 5-30 μm.

3. The PVC color-changing car cover film structure self-repairing coating according to claim 1, characterized in that: The overall thickness of the base film is 150-250 μm.

4. The PVC color-changing car cover film structure self-repairing coating according to claim 1, characterized in that: The colored PVC layer (5) is made of colored PVC material and has a thickness of 50-100 μm.

5. The PVC color-changing car cover film structure self-repairing coating according to claim 1, characterized in that: The repair layer (6) is made of a TPU protective film, and the thickness of the TPU protective film is 80-120 μm.

6. The PVC color-changing car cover film structure self-repairing coating according to claim 1, characterized in that: The size of the particles in the frosted particle layer is 20.3 μm-30.5 μm, and the distance between two adjacent frosted particles is 32-46 μm.

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