Antifouling vehicle film with composite structure
By designing the composite structure and the adhesive-enhancing film in the anti-fouling vehicle membrane, the problems of sharp objects piercing and film peeling are solved, and better car paint protection effect is achieved.
Patent Information
- Application Number
- CN202421692871.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-17
AI Technical Summary
After the existing car membrane is penetrated by sharp objects, the sharp objects may continue to invade the interior of the car membrane and damage the car paint, and it is prone to tear and peeling the membrane layer when it is slightly scratched, causing damage to the car paint.
An anti-fouling vehicle film with a composite structure is designed. By setting joints of non-planar structures between different film layers, the raised portions apply outward thrust to the sharp objects to prevent the sharp objects from punctured, and the film layer is avoided easily peeling off through the mucogenic membrane layer.
Effectively prevent sharp objects from piercing into the interior of the car membrane, reduce damage to the car paint, and reduce the peeling of the film layer when scratched, protecting the car paint.
Smart Images
Figure CN222809397U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile products, in particular to an anti-fouling automobile film with a composite structure. Background Art
[0002] In order to prevent the paint of the car body from being damaged, people usually choose to stick a layer of car film on the car body. Among the existing car films, there are single-layer films and multi-layer films, which can be selected according to the functions required by individuals. However, after being pierced by a sharp object, the existing car film will continue to penetrate the inside of the car film and eventually damage the car paint when the car film provides resistance to the sharp object. In addition, when the vehicle is slightly scratched, the car paint will also be damaged due to the tearing and peeling of the car film. Utility Model Content
[0003] To this end, the technical problem to be solved by the utility model is to provide an anti-fouling vehicle film with a composite structure, which uses at least two raised parts in a joint composed of non-planar structures to apply an outward thrust to the tip of a sharp object, so that the sharp object is not easy to penetrate into the interior of the vehicle film. At the same time, it can also achieve the effect of wear and peeling of part of the film layer with less impact on the film layer located lower.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0005] A dirt-proof vehicle film with a composite structure comprises an adhesive layer, a release paper layer, a base film layer, a composite structure layer and an dirt-proof film layer, wherein the dirt-proof film layer, the composite structure layer, the base film layer, the release paper layer and the adhesive layer are fixedly connected in sequence from top to bottom; the composite structure layer comprises a first film layer, a second film layer and a third film layer, wherein the first film layer and the third film layer are both film layers with a single-sided non-planar structure, the second film layer is a film layer with a double-sided non-planar structure, the lower surface of the first film layer is in contact with the upper surface of the second film layer, and the lower surface of the second film layer is in contact with the upper surface of the third film layer.
[0006] In the above-mentioned anti-fouling vehicle film with a composite structure, the anti-fouling film layer and the first film layer are fixedly connected via the first adhesion-promoting film layer.
[0007] In the above-mentioned anti-fouling vehicle film with a composite structure, the upper plate surface of the first adhesion-promoting film layer is provided with a first spherical groove with an axial cross section of a minor arc, and the depth of the first spherical groove is greater than 0 μm and less than or equal to 20 μm.
[0008] In the above anti-fouling vehicle film with a composite structure, the third film layer and the base film layer are fixedly connected via the second adhesion-promoting film layer.
[0009] In the above-mentioned anti-fouling vehicle film with a composite structure, the lower plate surface of the second adhesion-promoting film layer is provided with a second spherical groove with an axial cross-section of a minor arc, and the depth of the second spherical groove is greater than or equal to 10 μm and less than or equal to 30 μm.
[0010] In the above-mentioned anti-fouling vehicle film with a composite structure, at least one of the first film layer, the second film layer and the third film layer is a film layer made of elastic material.
[0011] In the above-mentioned anti-fouling vehicle film with a composite structure, the first film layer and the third film layer are film layers with a single-sided corrugated structure, and the second film layer is a film layer with a double-sided corrugated structure.
[0012] In the above anti-fouling vehicle film with a composite structure, on the second film layer, the corrugated structure on the upper plate surface is symmetrical with the corrugated structure on the lower plate surface.
[0013] The technical solution of the utility model has achieved the following beneficial technical effects:
[0014] 1. The utility model utilizes a non-planar structure so that when a sharp object penetrates into the upper surface of the second film layer, the protrusions on the upper surface of the second film layer can exert an outward thrust on the tip of the sharp object instead of just a resistance, thereby facilitating the sharp object to escape from the inside of the car film.
[0015] 2. Use the adhesion-enhancing film layer to prevent the outermost film layer from peeling off easily from the inner film layer, especially when the outermost film layer is cut into by tools such as a utility knife, which causes the film layer to separate. At the same time, it can also prevent the middle film layer from peeling off easily from the base film layer, so that the middle film layer can provide better protection for the base film layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic structural diagram of an anti-fouling vehicle film with a composite structure according to the utility model.
[0017] The reference numerals in the figure are as follows: 1 - antifouling film layer; 2 - first adhesion-enhancing film layer; 3 - first film layer; 4 - second film layer; 5 - third film layer; 6 - second adhesion-enhancing film layer; 7 - base film layer; 8 - adhesive layer; 9 - release paper layer. DETAILED DESCRIPTION
[0018] like Figure 1As shown, the utility model has an anti-fouling vehicle film with a composite structure, including an adhesive layer 8, a release paper layer 9, a base film layer 7, a composite structure layer and an anti-fouling film layer 1, the anti-fouling film layer 1, the composite structure layer, the base film layer 7, the release paper layer 9 and the adhesive layer 8 are fixedly connected in sequence from top to bottom; the composite structure layer includes a first film layer 3, a second film layer 4 and a third film layer 5, the first film layer 3 and the third film layer 5 are both film layers with a single-sided non-planar structure, the second film layer 4 is a film layer with a double-sided non-planar structure, the lower surface of the first film layer 3 is in contact with the upper surface of the second film layer 4, and the lower surface of the second film layer 4 is in contact with the upper surface of the third film layer 5.
[0019] Among them, at least one of the first film layer 3, the second film layer 4 and the third film layer 5 is a film layer made of elastic material. In this embodiment, preferably, the first film layer 3, the second film layer 4 and the third film layer 5 are all polyurethane films. It is further preferred that the first film layer 3 and the third film layer 5 are film layers with a single-sided corrugated structure, the second film layer 4 is a film layer with a double-sided corrugated structure, and on the second film layer 4, the corrugated structure on the upper plate surface is symmetrical with the corrugated structure on the lower plate surface. When producing the composite structure layer in the utility model, the first film layer 3, the second film layer 4 and the third film layer 5 are first prepared by calendering, and then the first film layer 3, the second film layer 4 and the third film layer 5 are formed as follows: Figure 1 The structure shown is stacked, and then hot pressed, so that the first film layer 3, the second film layer 4 and the third film layer 5 are bonded together to obtain the composite structure layer. Since the car film is usually thin, in this embodiment, the wavelength of the corrugated structure on the first film layer 3, the second film layer 4 and the third film layer 5 is 5 to 20 mm, and the peak height is 5 to 20 μm. Preferably, the corrugated structure has a wavelength of 16 mm and a peak height of 10 μm.
[0020] In order to prevent the anti-fouling film layer 1 from peeling off from the first film layer 3 easily, in this embodiment, the anti-fouling film layer 1 and the first film layer 3 are fixedly connected through the first adhesion-promoting film layer 2, and at the same time, a first spherical groove with an axial cross-section of a minor arc is provided on the upper surface of the first adhesion-promoting film layer 2, and the depth of the first spherical groove is greater than 0μm and less than or equal to 20μm. Preferably, the depth of the first spherical groove is 12μm, and the diameter of the first spherical groove is 1.2mm.
[0021] At the same time, in order to prevent the film layer above the base film layer 7 from being completely peeled off, in this embodiment, the third film layer 5 and the base film layer 7 are fixedly connected by a second adhesion-enhancing film layer 6, and the lower plate surface of the second adhesion-enhancing film layer 6 is provided with a second spherical groove with an axial cross-section of a minor arc, and the depth of the second spherical groove is greater than or equal to 10μm and less than or equal to 30μm. Preferably, the depth of the second spherical groove is 18μm, and the diameter of the second spherical groove is 1.2mm.
[0022] When producing the utility model, the antifouling film layer 1, the first adhesion-promoting film layer 2, the composite structure layer, the second adhesion-promoting film layer 6 and the base film layer 7 should be prepared respectively, and then the antifouling film layer 1, the first adhesion-promoting film layer 2, the composite structure layer, the second adhesion-promoting film layer 6 and the base film layer 7 should be prepared respectively. Figure 1 The structure shown is stacked together for heat pressing, and then an adhesive is applied on the lower surface of the base film layer 7 to form the bonding layer 8, and then the bonding layer 8 is bonded to the release paper layer 9 to obtain an anti-fouling vehicle film with a composite structure, wherein the anti-fouling film layer 1 is a single-sided silicon-coated polyester film, that is, the working surface of the anti-fouling film layer 1 is a silicon-coated surface, the first adhesion-enhancing film layer 2 and the second adhesion-enhancing film layer 6 are both polyvinyl acetate films, and the base film layer 7 is a polyester film layer.
[0023] When using the utility model, the release paper layer 9 is torn off, and the anti-fouling vehicle film with a composite structure is attached to the vehicle body, and then the excess part is cut off.
[0024] When the surface of an object with the utility model is subjected to a simulated test of scratch and abrasion resistance, after the steel needle pierces the first film layer 3 and drags the steel needle in a certain direction, the steel needle fails to continue to penetrate into the second film layer 4, but gradually escapes from the groove formed by the scratch. The reason is that the first film layer 3 and the second film layer 4 are in a partially separated state relative to the inside of the material, that is, the hot pressing and merging between the first film layer 3 and the second film layer 4 does not completely fuse the first film layer 3 and the second film layer 4 into one, which enables the inclined surface on the upper surface of the second film layer 4 to give the steel needle an outward thrust, so that the steel needle has a tendency to move outward, and then the steel needle can gradually escape from the groove formed by the scratch when the steel needle is dragged in a certain direction, avoiding the steel needle from continuing to penetrate the second film layer 4, the third film layer 5 and the base film layer 7 and damaging the car paint. At the same time, the scratches left by the steel needle on the utility model do not cause the antifouling film layer 1 to peel off from the first film layer 3. During the scratch test, the scratches between two cars and one car were simulated, and it was found that the second film layer 4 and the third film layer 5 at the scratched part were peeled off, while the third film layer 5 and the base film layer 7 were not peeled off. The peeling between the second film layer 4 and the third film layer 5 made the peeled material act as a lubricant, reducing hard friction and avoiding the occurrence of minor scratches to damage the car paint.
[0025] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.
Claims
1. An anti-fouling vehicle film with a composite structure, characterized in that: The invention comprises an adhesive layer (8), a release paper layer (9), a base film layer (7), a composite structure layer and an antifouling film layer (1), wherein the antifouling film layer (1), the composite structure layer, the base film layer (7), the release paper layer (9) and the adhesive layer (8) are fixedly connected in sequence from top to bottom; the composite structure layer comprises a first film layer (3), a second film layer (4) and a third film layer (5), wherein the first film layer (3) and the third film layer (5) are both film layers with a single-sided non-planar structure, and the second film layer (4) is a film layer with a double-sided non-planar structure, and the lower surface of the first film layer (3) is in contact with the upper surface of the second film layer (4), and the lower surface of the second film layer (4) is in contact with the upper surface of the third film layer (5).
2. The antifouling vehicle film with a composite structure according to claim 1, characterized in that: The antifouling film layer (1) and the first film layer (3) are fixedly connected via the first adhesion-promoting film layer (2).
3. The antifouling vehicle film with a composite structure according to claim 2, characterized in that: The upper plate surface of the first adhesion-promoting film layer (2) is provided with a first spherical groove with an axial cross section of a minor arc, and the depth of the first spherical groove is greater than 0 μm and less than or equal to 20 μm.
4. The antifouling vehicle film with a composite structure according to claim 1, characterized in that: The third film layer (5) and the base film layer (7) are fixedly connected via the second adhesion-promoting film layer (6).
5. The antifouling vehicle film with a composite structure according to claim 4, characterized in that: The lower plate surface of the second adhesion-promoting film layer (6) is provided with a second spherical groove with an axial cross section of a minor arc, and the depth of the second spherical groove is greater than or equal to 10 μm and less than or equal to 30 μm.
6. The antifouling vehicle film with a composite structure according to claim 1, characterized in that: At least one of the first film layer (3), the second film layer (4) and the third film layer (5) is a film layer made of elastic material.
7. The antifouling vehicle film with a composite structure according to claim 1, characterized in that: The first film layer (3) and the third film layer (5) are film layers with a single-sided corrugated structure, and the second film layer (4) is a film layer with a double-sided corrugated structure.
8. The antifouling vehicle film with a composite structure according to claim 7, characterized in that: On the second film layer (4), the corrugated structure on the upper plate surface is symmetrical with the corrugated structure on the lower plate surface.