Special structural color pigment sheet with good comprehensive performance for automobiles and preparation method thereof

A comprehensive performance and structural color technology, applied in metal material coating process, ion implantation plating, coating, etc., can solve the problem of high production cost of structural color pigment flakes, and achieve improved color stability, hardness and weather resistance , the effect of reducing the preparation cost

Pending Publication Date: 2021-02-02
深圳市绚图新材科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of the extremely high production cost of the existing structural color pigment flakes, the present invention provides a special structural color pigment flake for automobiles with high color stability, high weather resistance, low pollution and low cost and good comprehensive performance and its preparation method

Method used

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  • Special structural color pigment sheet with good comprehensive performance for automobiles and preparation method thereof
  • Special structural color pigment sheet with good comprehensive performance for automobiles and preparation method thereof
  • Special structural color pigment sheet with good comprehensive performance for automobiles and preparation method thereof

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preparation example Construction

[0030] The present invention also provides a kind of preparation method of the automotive-specific structural color pigment sheet with good comprehensive performance, the steps are as follows (please refer to figure 1 ):

[0031] Step 1. Preparation of nano-scale mirror stainless steel base material

[0032] Using stainless steel as the target material, the stainless steel target is vaporized by high-energy electron beams under vacuum conditions by sputtering coating method, and the vaporized stainless steel is deposited on the substrate to form a layer of nanometer-thick mirror stainless steel substrate . The stainless steel substrate has bright surface, good metallic luster and brightness, high hardness, high temperature resistance, good chemical resistance and storage stability. The thickness of the stainless steel substrate is 50-500nm.

[0033] Step 2. Laser surface engraving

[0034] A femtosecond laser is used to engrave the surface of the above-mentioned mirror sta...

Embodiment 1

[0047] Such as figure 1 As shown, using vacuum coating equipment, using 304 stainless steel as a target material, a mirror-surface 304 stainless steel film layer with a thickness of 50nm is evaporated on the substrate by vacuum sputtering coating method, that is, a mirror-surface 304 stainless steel substrate is obtained.

[0048] A femtosecond laser is used to perform laser engraving on the thin film layer of the deposited mirror surface 304 stainless steel substrate to prepare a laser active layer. The single pulse energy of the laser is 0.025mJ, the distance of the abscissa of the laser light is 0.42 microns, and the distance of the ordinate of the laser light is 2 microns, forming a colored layer combining dichromium oxide and ferric oxide with a thickness of 5nm; The transparent interference layer of silicon dioxide has a thickness of 10nm; the surface of the optical crystal layer has a honeycomb structure.

[0049] Vacuum coating equipment is used to evaporate and depos...

Embodiment 2

[0056] Using vacuum coating equipment, using 316 stainless steel as a target material, a mirror-surface 316 stainless steel film layer with a thickness of 80nm is evaporated on the substrate by vacuum sputtering coating method to obtain a mirror-surface 316 stainless steel substrate.

[0057] Use a femtosecond laser to laser engrave the thin film layer of the deposited mirror surface 316 stainless steel substrate to make a laser active layer. The single pulse energy of the laser is 0.022mJ, the distance of the abscissa of the laser light is 2.5 microns, and the distance of the ordinate of the laser light is 5 microns, forming a colored layer combining titanium nitride and ferrous disulfide with a thickness of 8nm; at the same time, it also produces titanium dioxide The transparent interference layer has a thickness of 10nm; the surface structure of the optical crystal layer is grating-like.

[0058] Vacuum coating equipment is used to evaporate and deposit a transparent compou...

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Abstract

The invention discloses a special structural color pigment sheet with good comprehensive performance for automobiles and a preparation method thereof. The special structural color pigment sheet for automobiles comprises: a stainless steel base material, a laser action layer arranged on the surface of the stainless steel base material, and at least one transparent compound layer arranged on the surface of the laser action layer. The special structural color pigment sheet for automobiles is used as a source of automobile finish paint color, environmental pollution caused by pigment color is avoided, and color stability is improved; stainless steel is used as the base material of the pigment sheet, so that the hardness and the weather resistance of the pigment sheet are improved; the vacuum coating technology and the laser etching technology are combined to replace a photoetching machine to carry out structural design on the material, so that the preparation cost of the pigment is greatlyreduced.

Description

technical field [0001] The invention belongs to the field of automotive topcoats, and in particular relates to an automotive-specific structural color pigment sheet with high color stability, high weather resistance, low pollution and low cost and good comprehensive performance and a preparation method thereof. Background technique [0002] In recent years, people have begun to pursue personalization, youthfulness and diversification of car exterior colors, and the mainstream three colors of white, black and silver are far from meeting market demand. Color is mainly produced by two different mechanisms: pigment color and structural color, and colored automotive topcoat mainly uses pigments or dyes to endow products with various colorful colors, and the production process is prone to produce a lot of pollution , easy to age and fade. Structural color mainly forms a thin film structure or photonic crystal on the surface, which produces a difference in refraction of light and ...

Claims

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Application Information

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IPC IPC(8): C09D7/61C23C14/34C23C14/24C23C14/14C23C14/08C23C14/10C23C14/58
CPCC09D7/61C09D7/70C23C14/34C23C14/24C23C14/14C23C14/08C23C14/083C23C14/081C23C14/10C23C14/5813C23C14/5846C23C14/0015
Inventor 林海晖梁嘉静何素武
Owner 深圳市绚图新材科技有限公司
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