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A kind of preparation method of mirror surface silver paste

A technology of mirror silver paste and paste, which is applied in the field of coatings, can solve the problems of high cost, scratches and wear, and achieve the effects of easy peeling, smooth aluminum coating, and saving process and raw materials

Active Publication Date: 2018-07-31
SHANGHAI AO FAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this method, only one layer of aluminum film can be electroplated on the PET film, or at most one layer of aluminum film can be electroplated on both sides of the PET film, and then peeled off to make an aluminum sheet with a mirror effect. After the PET film is used up, it will be scrapped. , the cost is high, and it is easy to cause scratches and wear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of mirror silver paste, the method comprises the following steps:

[0027] (1) Coating release layer on PET film, then carry out vacuum aluminum plating; Described release layer adopts following method to make: nitrocellulose, cellulose acetate butyrate and acrylic resin are by weight 0.2:0.5: 4 is dissolved in an organic solvent, and the coating formed by coating the obtained slurry is the release layer, and the solid content of the slurry is 1%. Described organic solvent comprises ethyl ester, butyl ester, methyl acetate, ethyl acetate or propyl acetate.

[0028] (2) Continue to coat release layer on the gained aluminized layer, then carry out vacuum aluminized;

[0029] (3) Repeat step (2) twice;

[0030] (4) Peeling off each release layer, the aluminum-coated layer on each release layer is separated from solid and liquid, cleaned to obtain aluminum powder, and then ultrasonically pulverized to obtain a mirror silver paste.

Embodiment 2

[0032] A preparation method of mirror silver paste, the method comprises the following steps:

[0033] (1) Coating release layer on PET film, then carry out vacuum aluminum plating; Described release layer adopts following method to make: nitrocellulose, cellulose acetate butyrate and acrylic resin are by weight 1:0.5: 6 is dissolved in an organic solvent, and the coating formed by coating the obtained slurry is the release layer, and the solid content of the slurry is 10%. Described organic solvent comprises ethyl ester, butyl ester, methyl acetate, ethyl acetate or propyl acetate.

[0034] (2) Continue to coat release layer on the gained aluminized layer, then carry out vacuum aluminized;

[0035] (3) Repeat step (2) 10 times;

[0036] (4) peeling off each release layer, the aluminum layer on each release layer is separated from solid and liquid by filtration, washed with organic solvent butanol to obtain aluminum powder, and then emulsified and pulverized to obtain mirror...

Embodiment 3

[0038] A preparation method of mirror silver paste, the method comprises the following steps:

[0039] (1) Coating release layer on PET film, then carry out vacuum aluminum plating; Described release layer adopts following method to make: nitrocellulose, cellulose acetate butyrate and acrylic resin are by weight 0.5:0.5: 5 is dissolved in an organic solvent, and the coating formed by coating the obtained slurry is a release layer, and the solid content of the slurry is 5%. Described organic solvent comprises ethyl ester, butyl ester, methyl acetate, ethyl acetate or propyl acetate.

[0040] (2) Continue to coat release layer on the gained aluminized layer, then carry out vacuum aluminized;

[0041] (3) Repeat step (2) 20 times;

[0042] (4) peel off each release layer, the aluminum coating on each release layer is centrifuged, deionized water is washed 3-5 times to obtain aluminum powder, and then ball milling is carried out to grind and pulverize to obtain mirror surface si...

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Abstract

The invention relates to a preparation method of mirror silver paste, which comprises the following steps: (1) coating a release layer on a PET film, and then carrying out vacuum aluminum plating; (2) continuing to coat a release layer on the obtained aluminum plating layer (3) repeat step (2) several times; (4) peel off each release layer, carry out solid-liquid separation, and separate the obtained solid to clean and pulverize to obtain mirror silver paste. Compared with the prior art, the invention can realize multi-layer coating and reduce the cost.

Description

technical field [0001] The invention relates to a paint, in particular to a method for preparing mirror silver paste. Background technique [0002] Mirror silver uses high-purity aluminum as raw material and adopts a unique vacuum coating process (VMPs) to produce non-leafing super bright aluminum silver paste, with an aluminum content of 10%-13%, an average particle size of d506-10μm, and a scale thickness of nanometers. The traditional ball milling method is 5-15 times thinner, with great hiding power, and can obtain excellent chrome plating effect (mirror surface) with less dosage, and the cost of use is more economical. Widely used in body paint, wheel paint, mobile phone paint, bicycle paint, glass paint, plastic paint, screen printing, gravure ink, cigarette label wine label ink, nail polish, flexographic ink, leather paint, toy paint and handicraft paint, etc. industry. [0003] The manufacturing method of existing ordinary aluminum-silver paste is usually to mix sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/04
Inventor 李钢
Owner SHANGHAI AO FAN CHEM CO LTD