Preparation method of waterborne rainbow aluminum paste

A rainbow, water-based technology, applied in chemical instruments and methods, pigment slurry, dyeing organosilicon compound treatment, etc., can solve the problems of single color, water-based metal pigments and other problems, and achieve the effect of easy dispersion.

Inactive Publication Date: 2018-07-06
HEFEI SUNRISE PIGMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the requirements of environmental protection, the development of oil-based products is more and more constrained, so the water-based of metallic pigments is urgent
Traditional water-based metallic pigments generally use spherical aluminum powder as raw material, are produced by wet ball milling, and are produced by water-based surface modification methods. The color is single, and usually only shows silver-gray effects. In view of this, We propose a preparation method of water-based rainbow aluminum paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a kind of preparation method of water-based rainbow aluminum paste, comprising the following steps:

[0023] Step 1. Coating a layer of water-based release coating with a dry film thickness of not less than 1um on a PET film of a certain thickness;

[0024] Step 2. Coating a layer of aluminum with a purity of 99.99% on the film coating by PVD method to form an aluminized film with a film thickness of between;

[0025] Step 3. Carve the surface of the aluminized film by laser engraving or embossing to give a flat surface microstructure of the aluminized layer, and obtain an aluminum layer that can interfere and diffract light;

[0026] Step 4. Immerse the aluminized film in a certain quality solvent. After the release coating is dissolved, the aluminized layer will fall off from the film and disperse in the solvent;

[0027] Step 5, concentrating the aluminum film suspension to obtain an aluminum paste with a solid content of not less than 60%...

Embodiment 2

[0036] This embodiment provides a kind of preparation method of water-based rainbow aluminum paste, it is characterized in that, comprises the following steps:

[0037] Step 1. Coating a layer of water-based release coating with a dry film thickness of not less than 1um on a PET film of a certain thickness;

[0038] Step 2. Coating a layer of aluminum with a purity of 99.99% on the film coating by PVD method to form an aluminized film with a film thickness of between;

[0039] Step 3. Carve the surface of the aluminized film by laser engraving or embossing to give a flat surface microstructure of the aluminized layer, and obtain an aluminum layer that can interfere and diffract light;

[0040] Step 4. Immerse the aluminized film in a certain quality solvent. After the release coating is dissolved, the aluminized layer will fall off from the film and disperse in the solvent;

[0041] Step 5, concentrating the aluminum film suspension to obtain an aluminum paste with a solid ...

Embodiment 3

[0050] A preparation method of water-based rainbow aluminum paste, comprising the following steps:

[0051] Step 1. Coating a layer of water-based release coating with a dry film thickness of not less than 1um on a PET film of a certain thickness;

[0052] Step 2. Coating a layer of aluminum with a purity of 99.99% on the film coating by PVD method to form an aluminized film with a film thickness of between;

[0053] Step 3. Carve the surface of the aluminized film by laser engraving or embossing to give a flat surface microstructure of the aluminized layer, and obtain an aluminum layer that can interfere and diffract light;

[0054] Step 4. Immerse the aluminized film in a certain quality solvent. After the release coating is dissolved, the aluminized layer will fall off from the film and disperse in the solvent;

[0055] Step 5, concentrating the aluminum film suspension to obtain an aluminum paste with a solid content of not less than 60%;

[0056]Step 6. Add the above-...

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Abstract

The invention relates to the technical field of chemical industry, in particular to a preparation method of waterborne rainbow aluminum paste. The preparation method comprises the following steps: step one, coating a PET thin film with certain thickness with a layer of waterborne release coating of which the thickness of a dry film is not smaller than 1mu m; step two, plating a film coating with alayer of aluminum with the purity of 99.99 percent by using a PVD method, thus forming an aluminum-plated film, wherein the film thickness is seen in the description; step three, carrying out surfacecarving on the aluminum-plated film by laser engraving or molding, endowing the surface of a flat aluminum-plating layer with a micro-structure to obtain an aluminum layer which can generate interference and diffraction to light. According to the preparation method of the waterborne rainbow aluminum paste, disclosed by the invention, a waterborne aluminum pigment with rainbow effects selects a high-purity aluminum wire as a raw material; the high-purity aluminum wire is subjected to vapor deposition on the PET thin film by adopting a vacuum evaporation method; the high-purity aluminum wire isendowed with great diameter-thickness ratio and excellent rainbow effects by mould pressing, and is subjected to waterborne surface treatment at later stage to obtain a product. The waterborne rainbow aluminum paste is subjected to surface waterborne treatment based on oily rainbow aluminum paste; meanwhile, the rainbow effects of the waterborne rainbow aluminum paste are not affected.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a preparation method of water-based rainbow aluminum paste. Background technique [0002] With the development of the times, people's pursuit of color has gradually changed from a single color to a colorful color. Metallic pigments with rainbow effects have also emerged as the times require, and are widely used in anti-counterfeiting, home appliances, automobiles and other fields. At the same time, due to the requirements of environmental protection, the development of oil-based products is increasingly constrained, so the water-based transformation of metallic pigments is urgent. Traditional water-based metallic pigments generally use spherical aluminum powder as raw material, are produced by wet ball milling, and are produced by water-based surface modification methods. The color is single, and usually only shows silver-gray effects. In view of this, We propose a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00C09D11/037C09C1/40C09C3/08C09C3/10C09C3/12
CPCC09C1/0015C09C3/006C09C3/08C09C3/10C09C3/12C09D11/037C09D17/006
Inventor 朱胜利董前年王蓓蓓沈志平张泽锋朱双单
Owner HEFEI SUNRISE PIGMENTS
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