Water-fading water-based protective ink and preparation method thereof

Abstract

The invention discloses water-faded water-based protective ink and a preparation method thereof. The water-faded water-based protective ink comprises the following components in percentage by weight: 50-70% of water-based resin, 10-20% of water-based pigment, 10-20% of water-based pigment, 5-20% of pigment 0.3%-2% of a water-based leveling agent; 0.3%-2% of a water-based defoaming agent; 0.3%-2% of a water-based wetting agent; 3%-10% of water-based matting powder; 5%-10% of filler; 0.1%-0.5% of a pigment; 5%-30% of water; after a film is formed, the film can be removed by flushing with normal-temperature tap water, the film removing time is short, no residue exists, the application process is wide, and the high temperature resistance is good after the film is formed. The preparation method provided by the invention is environment-friendly and pollution-free in preparation process, simple and easy to operate in proportioning process, and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of water-based protective ink, in particular to a water-based protective ink that can be faded and a preparation method thereof. Background technique [0002] With the advent of the 5G era, mobile phones, tablet computers, etc. have higher and higher signal requirements, and non-metallic materials such as glass, ceramics, and polycarbonate composite boards have become the preferred materials for such electronic products. However, intelligent electronic products have very high requirements on screen resolution, so they have very high requirements on the appearance of materials. In the actual manufacturing process, scratches are the main reason for the increase in the defect rate of this type of non-metallic materials. This requires a protective ink to protect the substrate processing. The general method is to print or spray a layer of protective ink, and then remove the ink later. [0003] There are two ma...

AI Technical Summary

Problems solved by technology

UV-type protective ink needs to use professional UV curing equipment to carry out UV curing with the coated ink, which increases the production cost, and there is also the problem that it is difficult to remove the ink in the later stage. Generally, it needs to be used in NaOH solution with a concentration of more than 5%. Soaking or ultrasonic stripping, some need to heat the lye to 70-90°C to strip, the efficiency is low

And the lye will cause environmental pollution during stripping

At present, there are water-soluble protective oils on the market, but the stripping process still requires lye dissolution, ultrasonic dissolution or hot water immersion, and it still cannot be water-soluble at room temperature.

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