Plastic substrate film structure with blue color and white light transmitting effect

Abstract

The utility model belongs to the technical field of automobile surface coatings, and provides a plastic substrate film layer structure with blue color and white light transmission effect, which comprises a substrate layer, a composite coating layer is sputtered on the surface of the substrate layer, the composite coating layer comprises a titanium nitride layer, a metal indium / aluminum layer and a metal titanium layer, the titanium nitride layer, the metal indium / aluminum layer and the metal titanium layer are sequentially sputtered on the base material layer. Compared with the prior art, the utility model has the advantages that the base coating is avoided, only the titanium nitride layer, the metal indium / aluminum layer, the metal titanium layer and the UV surface coating need to be sputtered, the film coating layer is larger in binding force, high in hardness, resistant to friction and corrosion and more stable in performance in a sputtering film coating mode, toxic or polluted substances and gases cannot be generated, the adverse effect on the environment is avoided, and the service life of the film is prolonged. And the development direction of modern green manufacturing is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive surface coatings, and particularly relates to a film layer structure with a blue color and a white light transmission effect on a plastic substrate. Background Art

[0002] Coating the plastic substrate can achieve the development of different metallic color shades on plastic substrate parts. The luminous label coating is an inorganic coating that does not oxidize. After the nitride material is coated on the plastic material, it will not be oxidized and disappear due to external factors such as ultraviolet rays and acid rain. It can achieve a blue appearance color effect during the day and a visible white light effect under the backlight at night. It can achieve a metallization effect on automotive transparent plastic products, and the visual effect of the luminous label is prominent. The existing problems that need to be solved are the appearance of bright spots and pinhole points after the combination of the pinhole points of the transparent PC substrate and the PVD film. The adhesion test performance of the bottomless coating and the PVD is difficult to meet the test requirements such as boiling water resistance and cross-cut test at high temperature. The high and low temperature performance of the film layer and the plastic substrate after coating is difficult to meet the requirements of environmental tests. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a film layer structure with a blue color and a white light transmission effect on a plastic substrate, which has a white light transmission night vision effect under the condition of backlight white light source emission, aiming at the current situation of the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problem is as follows: A film layer structure with a blue color and a white light transmission effect on a plastic substrate, including a substrate layer, characterized in that a composite coating layer is sputtered on the surface of the substrate layer, and the composite coating layer includes a titanium nitride layer, an indium / aluminum metal layer, and a titanium metal layer, and the titanium nitride layer, the indium / aluminum metal layer, and the titanium metal layer are sputtered on the substrate layer in sequence.

[0005] In the above film layer structure with a blue color and a white light transmission effect on a plastic substrate, the thickness of the titanium nitride layer is 10 - 20 nm, the thickness of the indium / aluminum metal layer is 10 - 30 nm, and the thickness of the titanium metal layer is 80 - 100 nm.

[0006] In the above film layer structure with a blue color and a white light transmission effect on a plastic substrate, a topcoat layer is further sprayed on the outer surface of the composite coating layer.

[0007] In the above film layer structure with a blue color and a white light transmission effect on a plastic substrate, the light transmittance of the composite coating layer is in the range of 8% - 15% and allows white light to pass through.

[0008] In the above film layer structure with a blue color and a white light transmission effect on a plastic substrate, the substrate layer is polycarbonate PC, and the light transmittance is above 15 - 25%.

[0009] Compared with the prior art, the advantages of the present utility model are that no primer is required, and only a titanium nitride layer, a metal indium / aluminum layer, a metal titanium layer and a UV surface coating are sputtered. The coating layer has a greater bonding force by sputtering coating, high hardness, wear resistance, corrosion resistance, more stable performance of the coating layer, and no toxic or polluting substances and gases are generated, which has no adverse impact on the environment and conforms to the development direction of modern green manufacturing. Brief Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the film layer structure of the plastic substrate with a blue color and a white light transmission effect. Detailed Embodiments

[0011] The following are specific embodiments of the present utility model in combination with the drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0012] In the figure, substrate layer 100; titanium nitride layer 200; metal indium / aluminum layer 300; metal titanium layer 400; topcoat layer 500; composite coating layer 600.

[0013] As Figure 1 shown, the film layer structure of the plastic substrate with a blue color and a white light transmission effect includes a substrate layer 100. The substrate layer 100 is polycarbonate PC, and the light transmittance is above 15-25%, so that the light source at the back end can pass through. A composite coating layer 600 is sputtered on the surface of the substrate layer 100. The light transmittance of the composite coating layer 600 is in the range of 8%-15% and can transmit white light. The composite coating layer 600 includes a titanium nitride layer 200, a metal indium / aluminum layer 300 and a metal titanium layer 400. The titanium nitride layer 200, the metal indium / aluminum layer 300 and the metal titanium layer 400 are sputtered on the substrate layer 100 in sequence. The thickness of the titanium nitride layer 200 is 10-20 nm, the thickness of the metal indium / aluminum layer 300 is 10-30 nm, and the metal titanium layer 400 is 80-100 nm. Here, the sputtering coating material is the metal titanium layer 400 plus a metal color as a reflective layer to increase the brightness and luster. Here, mainly through the titanium nitride layer 200, the metal indium / aluminum layer 300 and the metal titanium layer 400, different metal materials are used, and different reaction gases are added to prepare a blue effect of the metal color. At the same time, through different refractive index compounds of materials, the problem of yellowing of the color temperature caused by the light color passing through the PC is solved, so as to achieve the PC decoration effect during the day and the white light transmission effect after luminescence at night. In order to protect the composite coating layer 600, a topcoat layer 500 is also sprayed on the outer surface of the composite coating layer 600.

[0014] During production, in step 1, the substrate layer 100 uses polycarbonate (PC), which is an amorphous thermoplastic material with high light transmittance and colorless transparency; in step 2, the surface of the substrate layer 100 is cleaned ultrasonically with a neutral cleaning agent. By using the high-frequency oscillation of ultrasonic waves and adding a neutral cleaning agent with a pH value in the range of 6 - 8, the non-ionic + anionic / cationic surfactants in the neutral cleaning agent are used to clean the substrate surface thoroughly; in step 3, a positive transparent resin material protective paint is used to protect the front side; in step 4, a sputtering coating method is used: the first layer is a base layer, a titanium nitride layer 200 is deposited, with a material thickness of 10 - 20 nm, the second layer is a metal indium / aluminum layer 300 added, with a thickness of 10 - 30 nm, and the third layer, the protective film layer, is a metal titanium layer 400 deposited, with a thickness of 80 - 100 nm. The overall light transmittance is controlled within the range of 8% - 15%, and it has the effect of transmitting white light; in step 5: a protective topcoat layer 500 is sprayed. By spraying a layer of UV paint, the thickness is controlled within 6 - 15 μm, cured by UV for 90 s, baked at 80 °C for 5 hours. After the above treatments, different metal materials are used and different reaction gases are added to prepare a blue effect with a metallic luster. At the same time, through compounds with different refractive indices of materials, the problem of yellowing of the color temperature caused by the light color passing through the PC is solved, thus achieving the PC decorative effect during the day and the white light transmission effect after glowing at night.

[0015] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications to the described specific embodiments or use similar methods for substitution, but will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A film structure having a blue plastic substrate and a white light-transmitting effect, comprising a substrate layer, characterized in that: A composite coating layer is sputtered on the surface of the substrate layer, and the composite coating layer includes a titanium nitride layer, a metal indium / aluminum layer and a metal titanium layer. The titanium nitride layer, the metal indium / aluminum layer and the metal titanium layer are sputtered on the substrate layer in sequence.

2. The film structure of a plastic substrate having a blue color and a white light-transmitting effect according to claim 1, characterized in that: The thickness of the titanium nitride layer is 10-20nm, the thickness of the metal indium / aluminum layer is 10-30nm, and the thickness of the metal titanium layer is 80-100nm.

3. The film structure of a plastic substrate having a blue color and a white light-transmitting effect according to claim 1, characterized in that: A topcoat layer is also sprayed on the outer surface of the composite coating layer.

4. The film structure of a plastic substrate having a blue color and a white light-transmitting effect according to claim 3, characterized in that: The light transmittance of the composite coating layer is in the range of 8%-15% and can allow white light to pass through.

5. The film structure of a plastic substrate having a blue color and a white light-transmitting effect according to claim 1, characterized in that: The substrate layer is polycarbonate PC, and the light transmittance is above 15-25%.

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