A kind of non-voc emission environment-friendly uv varnish for coated iron and preparation method thereof

A varnish, environmental protection technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems that cannot meet the adhesion, hardness, toughness, etc. at the same time

Active Publication Date: 2021-09-14
FOSHAN ROCKLINK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when UV-cured varnish is used for coated iron, it often cannot meet the requirements of adhesion, hardness, and toughness at the same time, and can avoid possible deformation during the baking and curing process.

Method used

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  • A kind of non-voc emission environment-friendly uv varnish for coated iron and preparation method thereof
  • A kind of non-voc emission environment-friendly uv varnish for coated iron and preparation method thereof
  • A kind of non-voc emission environment-friendly uv varnish for coated iron and preparation method thereof

Examples

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preparation example Construction

[0056] The second aspect of the present invention provides a method for preparing the above-mentioned non-VOC emission environment-friendly UV varnish, comprising the following steps:

[0057] (1) Mixing modified epoxy acrylic resin, aminoacrylic resin and diluted monomer to obtain a premix;

[0058] (2) Add the photoinitiator into the premix and mix to obtain the varnish.

[0059] In one embodiment, the preparation method of the VOC emission-free environment-friendly UV varnish of the present invention comprises the following steps:

[0060] (1) After mixing the modified epoxy acrylic resin, aminoacrylic resin, and diluting monomer at 400-500r / min for 5-10min, mix at 1000-1500r / min for 10-20min to obtain a premix;

[0061] (2) Add photoinitiator and auxiliary agent into the premix, mix at 400-500r / min for 5-10min, then mix at 1000-1500r / min for 20-50min to obtain the varnish.

[0062] In one embodiment, the application of the non-VOC emission-friendly UV varnish of the pres...

Embodiment

[0068]The present invention is specifically described below by way of examples. It is necessary to point out that the following examples are only used to further illustrate the present invention, and can not be interpreted as limiting the protection scope of the present invention, some non-essential improvements made by those skilled in the art according to the content of the present invention above And adjustments still belong to the protection scope of the present invention.

[0069] A1: Modified epoxy acrylic resin

[0070] The modified epoxy acrylic resin is a fatty acid modified epoxy acrylic resin, purchased from Guangzhou Handong New Material Technology Co., Ltd. H3165.

[0071] A2: Modified epoxy acrylic resin

[0072] The modified epoxy acrylic resin is a fatty acid modified epoxy acrylic resin, purchased from Guangzhou Handong New Material Technology Co., Ltd. B5293.

[0073] B1: aminoacrylic resin

[0074] The aminoacrylic resin was purchased from Jiangsu Sanmu ...

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Abstract

The invention relates to the field of printed iron packaging, more specifically, the invention relates to a non-VOC emission-friendly UV varnish for coated iron and a preparation method thereof. The invention provides a VOC-free environmentally friendly UV varnish for coated iron. The varnish must have an adhesion force of more than 2 levels on the UV ink and on the coated iron, and has high hardness while having good hardness. Toughness, and the physical and chemical properties must reach the same physical and chemical properties of the paint film made by the traditional baking process; and the applicant uses the varnish for the processing technology of the coated iron, and realizes the coating of the coated iron by UV curing. High-temperature baking is not required in the whole process, which avoids the disadvantage that the film is easily deformed when the coated iron is baked, saves energy, and avoids VOC emissions, which is conducive to environmental protection.

Description

technical field [0001] The invention relates to the field of printed iron packaging, more specifically, the invention relates to a non-VOC emission-friendly UV varnish for coated iron and a preparation method thereof. Background technique [0002] Printed iron needs to be packaged before use. The printing process generally used for the outer coating of packaging cans is the process of undercoating white curdine or primer + UV ink or thermosetting ink + traditional acrylic baking varnish. Only two times of high-temperature baking can be completely cured to obtain a paint film, which consumes a lot of resources, and a large amount of VOC emissions pollute the air, which is neither energy-saving nor environmentally friendly. The emergence of coated iron technology eliminates the use of primer or base oil. The ink can be directly printed on the coated iron, and then printed with varnish to complete the production of the paint film. And in order to avoid environmental pollution,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D187/00C09D7/63
CPCC09D163/10C09D7/63C08L87/005
Inventor 钟应理高忠德徐红华鲁琴梁深祥梁超徐铭新
Owner FOSHAN ROCKLINK CHEM
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