Strippable water-soluble silk screen ink for temporary protection

A technology of screen printing ink and temporary protection, applied in the direction of ink, printing, application, etc., can solve the problems that the mold cannot be closely combined with the transparent plastic panel, affect the aesthetics of the panel, and the edge of the window is not neat, and achieves easy implementation and excellent solvent resistance. , easy peeling effect

Inactive Publication Date: 2010-10-06
深圳市美丽华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual processing process, the mold is often not tightly combined with the transparent plastic panel, so that after spraying, there will be misty irregular edges at the edge of the window, that is, burrs, which will directly affect the aesthetics of the panel.

Method used

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  • Strippable water-soluble silk screen ink for temporary protection
  • Strippable water-soluble silk screen ink for temporary protection
  • Strippable water-soluble silk screen ink for temporary protection

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] Take 60g of R-970 water-based polyurethane resin and place it in a container, and add materials while stirring at a speed of 700RPM. Add 1g of BYK-020 water-based defoamer, 1g of DISPERBYK-191 water-based dispersant, BYK-346 water-based Wetting agent 1g, humectant propylene glycol 12g, water-based active clay filler 22g, RM-8W type thickener 3g, and then stirred and mixed for 20 minutes, promptly made the strippable water-based screen printing ink for temporary protection of the present invention.

[0033] The process of the application of the strippable water-based screen printing ink for temporary protection of the present invention in the panel processing of electrical appliances and electronic products is as follows: Figure 1 ~ Figure 3 shown. Such as figure 1 , first screen-print the peelable water-based screen printing ink 3 for temporary protection on the window 2 on the back of the plastic panel 1, after drying, and then figure 2 Spray solvent-based paint 4 ...

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Abstract

Disclosed is a temporary protective peelable waterborne screen printing ink which contains the following ingredients(based on weight percentage):40-80 waterborne polyurethane resin, 0.1-2 waterborne foam killer, 0.1-2 waterborne dispersant, 0.1-2 waterborne wetting agent, 4-20 humectant, 5-40 filler and 0.1-5 thickening agent. All the ingredients of the waterborne screen printing ink are waterborne materials and are of excellent elasticity and intensity, so the waterborne screen printing ink can be easily peeled from a panel after being sprayed and painted and is of good solvent resistance after being filmed, thus ensuring that dope can not permeate the screen printing ink layer to erode the plastic panel.

Description

【Technical field】 [0001] The invention relates to a silk screen printing ink, in particular to a peelable water-based silk screen printing ink which plays a temporary protective role in panel processing of electronic products. 【Background technique】 [0002] In the manufacturing process of electrical and electronic products, special processing and treatment are required for the panels, including painting on the back of the transparent plastic panels. Generally, windows must be opened on the panel. When finishing the panel with the window, the traditional method is to use a pre-made mold to cover the window on the back of the plastic panel, so as not to spray the paint on the window during spraying. . However, in the actual processing process, the mold is often not tightly combined with the transparent plastic panel, so that after spraying, there will be misty irregular edges at the edge of the window, that is, burrs, which will directly affect the aesthetics of the panel. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10B41M1/12C09D11/02C09D11/102
Inventor 胡萍
Owner 深圳市美丽华科技股份有限公司
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