Environment-friendly removing agent of covering paint as well as preparation method and application of environment-friendly removing agent

An environmentally friendly, resin paint technology, applied in the direction of chemical paint/ink remover, coating, etc., can solve the problems of inability to meet the process requirements, unsafe workpiece base material, fast volatilization, etc., to facilitate industrial mass production and application , enhance the fading ability, reduce the effect of surface tension

Active Publication Date: 2013-10-16
广东山之风环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. Production requires UV light-cured paint film for decoration and protection. The paint film does not meet the quality requirements during production. In order to save costs, it needs to be removed and reworked
[0003] At present, paint removers are mainly organic solvent systems and acidic systems: 1. The traditional organic solvent removers are mainly dichloromethane-type removers, which have a fast removal time and are safe to the substrate of the workpiece , but high toxicity, fast volatilization, and non-durability increase the cost; due to the improvement of environmental protection awareness at home ...

Method used

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  • Environment-friendly removing agent of covering paint as well as preparation method and application of environment-friendly removing agent
  • Environment-friendly removing agent of covering paint as well as preparation method and application of environment-friendly removing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of environmental-friendly remover for masking paint: mix and dissolve sodium hydroxide, tetrasodium ethylenediaminetetraacetic acid, sodium citrate, and water, then add triethanolamine, diethylene glycol, and alkyl glycoside, and stir well to prepare masking paint Eco-friendly stripper for paint.

[0039] Among them, the content of each component is: sodium hydroxide 5wt%, tetrasodium edetate 10wt%, sodium citrate 5wt%, triethanolamine 10wt%, diethylene glycol 20wt%, alkyl glycoside (APG0810) 2wt%, Water 48wt%.

[0040] The stainless steel workpiece covered with UV masking paint (UV metal screen printing ink, the main component is a mixture of UV light-curing acrylic resin paint and UV light-curing polyurethane acrylic resin paint, Shenzhen Jinjia Ink Co., Ltd.) is completely immersed in the above-mentioned stripping agent. Soak at 90-95°C for 15 minutes, then immerse the workpiece in clean water at 35-60°C for ultrasonic cleaning for several minutes, and d...

Embodiment 2

[0043] Preparation of environmental-friendly remover for masking paint: mix and dissolve potassium hydroxide, sodium hydroxide, tetrasodium ethylenediaminetetraacetic acid, and water, then add triethanolamine and alkyl glycoside (AGP0810) and stir evenly to prepare masking paint environmentally friendly remover.

[0044] Among them, the content of each component is: potassium hydroxide 16wt%, sodium hydroxide 14wt%, edetate tetrasodium 5wt%, triethanolamine 10wt%, alkyl glycoside (APG0810) 5wt%, water 50wt%.

[0045] The stainless steel workpiece covered with UV masking paint (UV metal screen printing ink, the main component is a mixture of UV light-curing acrylic resin paint and UV light-curing polyurethane acrylic resin paint, Shenzhen Jinjia Ink Co., Ltd.) is completely immersed in the above-mentioned stripping agent. Soak at 80-85°C for 8 minutes, then immerse the workpiece in clean water at 35-60°C for several minutes, and then dry it at 85-120°C to obtain a stainless steel...

Embodiment 3

[0048] Preparation of environmental-friendly remover for masking paint: Mix and dissolve potassium hydroxide, sodium hydroxide, citric acid, and water, then add monoethanolamine, ethylene glycol, and alkyl glycoside (APG0810) and stir evenly to prepare an environmentally-friendly remover for masking paint. Remover.

[0049] Among them, the content of each component is: potassium hydroxide 40wt%, sodium hydroxide 5wt%, citric acid 0.5wt%, monoethanolamine 5wt%, ethylene glycol 5wt%, alkyl glycoside (APG0810) 0.5wt%, water 44wt% .

[0050] The stainless steel workpiece covered with UV masking paint (UV metal screen printing ink, the main component is a mixture of UV light-curing acrylic resin paint and UV light-curing polyurethane acrylic resin paint, Shenzhen Jinjia Ink Co., Ltd.) is completely immersed in the above-mentioned stripping agent. Soak at 80-85°C for 15 minutes, then immerse the workpiece in clean water at 35-60°C for ultrasonic cleaning for several minutes, and dr...

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Abstract

The invention belongs to the field of environment-friendly paint removers, and discloses an environment-friendly removing agent of a covering paint as well as a preparation method and using method of the environment-friendly removing agent. The environment-friendly removing agent of the covering paint contains the following components in percentage by mass: 5-45% of an alkali compound, 0.5-15% of an inorganic auxiliary agent, 5-30% of an organic auxiliary agent, 0.5-5% of a surfactant, and the balance of water. The environment-friendly removing agent of the covering paint is in the form of a water aqua, is safer and lower in toxicity and VOC (volatile organic compound) compared with the conventional dichloroethane type removing agent, and is safe to operators; the removing time of a preferred plan is only 5 minutes, so that the advantage of an organic solvent removing agent on removing time is not obvious anymore. Compared with an acidic system removing agent, the environment-friendly removing agent does not generate pungent smells, and is safe to a base material to ensure that the base material can not be corroded and generate rusts. Compared with a conventional alkali system removing agent, the environment-friendly removing agent is safer and more efficient.

Description

technical field [0001] The invention belongs to the field of environment-friendly paint strippers, in particular to an environment-friendly stripper for masking paint and its preparation method and application. Background technique [0002] In recent years, with technological innovation and rapid economic development, a large number of electronic products have entered the world of people, such as smart phones, PC computers, tablet computers, MP3, small household appliances and so on. Due to the complex production process of electronic products, it is usually necessary to remove the paint and paint film in the following two situations: 1. The production process needs to protect the surface of the workpiece so as not to affect the subsequent processes, so UV light-cured polymer coatings are used , The paint film is protected, and the paint and the paint film need to be removed in the next process. 2. Production requires UV light-cured paint film for decoration and protection....

Claims

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Application Information

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IPC IPC(8): C09D9/04
Inventor 董恩莲刘长海
Owner 广东山之风环保科技有限公司
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