Automobile decoration strip

Abstract

The utility model discloses an automobile decoration strip which comprises a varnish layer, an appearance coating layer, a UV (ultraviolet) priming coat and a plastic base layer which are arranged in sequence, the thickness of the varnish layer ranges from 5 micrometers to 10 micrometers, the thickness of the UV bottom coating ranges from 10 micrometers to 20 micrometers, and the thickness of the appearance coating layer ranges from 5 micrometers to 30 micrometers. The automobile decoration strip provided by the utility model can be mainly applied to automobile outer clamping strips, A / B / C columns, upper decoration strips and top decoration strips, and can be directly mounted and used during automobile assembly and production or can be directly replaced and mounted by dismounting the original automobile decoration strip. According to the automobile decoration strip, a brand new scheme is adopted to replace stainless steel, the performance is excellent, the manufacturing cost is low, the appearance is attractive, and guarantee is provided for meeting the gradually-increasing automobile market requirement.

Description

Technical Field

[0001] The utility model relates to an automobile accessory, in particular to an automobile decorative strip with plastic as a base. Background Art

[0002] With the continuous development of the automobile industry, people's demand for car appearance is becoming more and more personalized, and car body decoration has also become a trend and fashion. Traditional stickers, pendants and high-end coatings are very limited in personalized decoration. Replacing car decorative strips is also an option to add color to the car's appearance.

[0003] Traditional automotive trim strips are often directly machined from stainless steel. However, stainless steel trim strips are inherently heavy, increasing the overall weight of the vehicle and leading to higher energy consumption. Furthermore, stainless steel trim strips also present issues such as high replacement costs, lack of aesthetic appeal, and a lack of personalization.

[0004] Therefore, it is necessary to find a car decorative strip that does not require the use of stainless steel but can meet the performance requirements of car decorative strip engineering parts, and has low quality, low cost, good weather resistance and beautiful appearance; thereby replacing traditional stainless steel car decorative strips and providing consumers with new choices. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automobile decorative strip which is not only light in weight and can meet the requirements of beautiful appearance, but also has excellent physical properties and weather resistance, low manufacturing cost, and is no longer limited to stainless steel.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is to provide an automobile decorative strip, comprising a varnish layer, an appearance coating layer, a UV primer layer, and a plastic base layer arranged in sequence; the thickness of the varnish layer is 5-10um, the thickness of the UV primer layer is 10-20um, and the thickness of the appearance coating layer is 5-30nm.

[0007] Furthermore, the thickness of the varnish layer is 8-10 μm.

[0008] Furthermore, the thickness of the UV primer layer is 15-20 μm.

[0009] Furthermore, the thickness of the exterior coating layer is 15-20 nm.

[0010] Furthermore, the varnish layer is a cured film of acrylic resin and its modified resin.

[0011] Furthermore, the exterior coating layer is a metal or metal oxide deposition film.

[0012] Furthermore, the exterior coating layer is an aluminum oxide deposition film, a calcium oxide deposition film, a zinc oxide deposition film or a titanium oxide deposition film.

[0013] Furthermore, the UV primer coating is a polyether polyurethane coating, a polyester polyurethane coating, a polycarbonate polyurethane coating or a modified acrylic-polyurethane coating.

[0014] Furthermore, the plastic base layer is a thermoplastic polymer material layer or a nylon plastic layer.

[0015] Compared to existing technologies, the present invention has the following advantages: The automotive decorative strip provided by the present invention can be directly installed on the vehicle exterior after being clamped with a matching device. The present invention avoids the use of stainless steel, which not only reduces weight and contributes to the lightweighting of automobiles, but also offers low manufacturing costs and is not affected by steel market shortages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the automobile decorative strip of the present utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic structural diagram of the automobile decorative strip of the present utility model.

[0019] See Figure 1 The automobile decorative strip provided by the present invention comprises a varnish layer 1, an exterior coating layer 2, a UV primer layer 3 and a plastic base layer 4 which are arranged in sequence.

[0020] The automobile decorative strip provided by the utility model does not use stainless steel in its structure, but has similar performance indicators to stainless steel, which can solve the problem of stainless steel being heavy and improve the cost. It can be directly connected with the matching tooling and installed directly.

[0021] In the automotive decorative strip provided by the present invention, the clear coat layer 1 has a thickness of 5-10 μm, preferably 8-10 μm; the exterior coating layer 2 has a thickness of 5-30 μm, preferably 15-20 μm; and the UV primer layer 3 has a thickness of 10-20 μm, preferably 15-20 μm. The dimensions of the plastic base layer 4 can be customized according to the vehicle model. The exterior coating layer 2 can be coated with different substrates to meet the requirements of different vehicles.

[0022] The automobile decorative strip provided by the present invention comprises a varnish layer 1 comprising, but not limited to, a light-curing / heat-curing and light-heat dual-curing acrylic resin and a modified resin film thereof. The resin has a tensile strength greater than 15 MPa and an elongation at break greater than 100% after film formation, and has a certain scratch self-repairing function.

[0023] The automobile decorative strip provided by the present invention has an appearance coating layer 2 formed by evaporating or sputtering a metal or inorganic non-metallic material onto the surface of a UV primer using PVD processing equipment such as a vacuum ion evaporator or a magnetron sputtering coating machine. The appearance coating layer 2 can be an aluminum oxide deposition film, a calcium oxide deposition film, a zinc oxide deposition film, or a titanium oxide deposition film.

[0024] The UV primer layer 3 of the automotive decorative strip provided by this utility model includes, but is not limited to, PU resin. Modified PU resin is formed through photocuring to form a film with a tensile strength greater than 30 MPa, an elongation at break greater than 300%, and a UV barrier greater than 90%. It exhibits excellent adhesion and coating properties. Preferably, the UV primer layer 3 is a polyether polyurethane coating, a polyester polyurethane coating, a polycarbonate polyurethane coating, or a modified acrylic-polyurethane coating.

[0025] The plastic base layer 4 of the automotive decorative strip provided by the utility model is formed by injecting nylon plastic or ABS plastic into a mold through a vacuum forming machine or a screw extruder, and then demolding it after cooling to obtain a base plastic part. Tests have verified that the surface of the automotive decorative strip provided by the utility model is smoother and flatter. The basic performance is shown in the following table:

[0026] Physical properties unit Test Method result color / Visual inspection Color adjustable Surface film thickness um GB / T 6672-2001 Adjustable hardness ShoraA JIS Z 2243 ≤207 Yield strength <![CDATA[N / mm 2 ]]> JIS G 0404 ≥205 tensile strength <![CDATA[N / mm 2 ]]> JIS G 0404 ≥520 Elongation ％ JIS Z 2241 ≥40

[0027] In summary, the automotive decorative strips provided by this utility model are primarily applicable to exterior trims, A / B / C pillars, upper trims, and roof trims. They can be installed directly during vehicle assembly or simply replaced by removing the existing trim strips. This new automotive decorative strip utilizes a novel design, offering excellent performance, low manufacturing costs, and an aesthetically pleasing appearance, ensuring compliance with the growing demands of the automotive market.

[0028] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make slight modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A car decorative strip, characterized in that: It comprises a varnish layer, an exterior coating layer, a UV primer layer and a plastic base layer which are arranged in sequence; the thickness of the varnish layer is 5-10 μm, the thickness of the UV primer layer is 10-20 μm, and the thickness of the exterior coating layer is 5-30 nm.

2. The automotive decorative strip according to claim 1, wherein: The thickness of the varnish layer is 8-10 μm.

3. The automotive decorative strip according to claim 1, wherein: The thickness of the UV primer layer is 15-20 μm.

4. The automotive decorative strip according to claim 1, wherein: The thickness of the exterior coating layer is 15-20 nm.

5. The automotive decorative strip according to claim 1, wherein: The varnish layer is a cured film of acrylic resin and its modified resin.

6. The automotive decorative strip according to claim 1, wherein: The exterior coating layer is a metal or metal oxide deposition film.

7. The automotive decorative strip according to claim 1, wherein: The exterior coating layer is an aluminum oxide deposition film, a calcium oxide deposition film, a zinc oxide deposition film or a titanium oxide deposition film.

8. The automotive decorative strip according to claim 1, wherein: The UV primer coating is a polyether polyurethane coating, a polyester polyurethane coating, a polycarbonate polyurethane coating or a modified acrylic acid-polyurethane coating.

9. The automotive decorative strip according to claim 1, wherein: The plastic base layer is a thermoplastic polymer material layer or a nylon plastic layer.

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