Thin film structure with anti-fingerprint properties

Abstract

This invention relates to a thin film structure with anti-fingerprint properties. The film comprises a substrate layer, a release layer, a hardening layer, an ink layer, and an adhesive layer stacked sequentially. A first microstructure is formed at the bottom of the substrate layer, and a second microstructure corresponding to the first microstructure is formed on the upper surface of the hardening layer. Utilizing the hydrophobic lotus leaf effect of the second microstructure formed on the surface of the hardening layer, the surface area in contact with the hardening layer is significantly reduced when a user touches it, thus preventing fingerprints from remaining on the surface. This not only reduces surface dirt but also facilitates cleaning, maintaining a clean and aesthetically pleasing surface for a long time, enhancing its overall practicality.

Claims

1. A thin film structure with anti-fingerprint properties, mainly comprising a substrate layer, a release layer, a curing layer, an ink layer, and an adhesive layer sequentially stacked; wherein: The substrate layer has a first microstructure formed on its bottom; the release layer is bonded to the bottom of the first microstructure; the hardening layer is bonded to the bottom of the release layer, and a second microstructure corresponding to the first microstructure of the substrate layer is formed on the upper surface of the hardening layer; the ink layer is bonded to the bottom of the hardening layer; and the adhesive layer is bonded to the bottom of the ink layer for attachment to a target object.

2. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The substrate layer is made of polyethylene terephthalate (PET) plastic material.

3. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The first microstructure is formed by pressing with a pressure roller.

4. The thin film structure with anti-fingerprint properties as described in claim 3, wherein, The first microstructure was cured by ultraviolet (UV) energy transmitted through mercury lamp irradiation.

5. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The release layer system is a release material composed of a mixture of polymethyl methacrylate (PMMA, commonly known as acrylic), silicone (commonly known as silicone), and melamine-formaldehyde resin (commonly known as melamine).

6. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The release layer contains mineral powder.

7. The thin film structure with anti-fingerprint properties as described in claim 6, wherein, The ore powder is Silica (silica, SiO2), which allows the surface of the hardened layer to form a misted surface by means of the ore powder added in the release layer.

8. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The hardened layer is made of HC hardened material.

9. The thin film structure with anti-fingerprint properties as described in claim 8, wherein, The HC hardening material is a resin polymerized from methyl methacrylate resin (MMA), polyurethane resin, isocyanate resin, and their additives.

10. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The second microstructure is composed of several cone-shaped bodies.

11. The thin film structure with anti-fingerprint properties as described in claim 10, wherein, The height of the cone is 5~20μm, and the distance between two cones is 0.1~0.4mm.

12. The thin film structure with anti-fingerprint properties as described in claim 10, wherein, The cone has a height of 5-20 μm, and the distance between two cones is a combination of 0.1 mm, 0.2 mm, 0.3 mm, and 0.4 mm.

13. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, The ink layer system can be any one of the following: solid color ink, ink containing metallic materials, ink containing pearlescent materials, or multi-layer ink with a gradient visual effect.

14. The thin film structure with anti-fingerprint properties as described in claim 1, wherein, This ink system allows for the free combination of several types of ink layers, including solid color inks, inks containing metallic materials, inks containing pearlescent materials, and multi-layer ink layers with a gradient visual effect.

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