UV-cured high-surface-tension gloss oil and preparation method and application thereof
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A technology with high surface tension, applied in coatings, paper coatings, textiles and papermaking, etc., can solve problems such as difficult adhesion and poor recoatability
Inactive Publication Date: 2021-03-26
广东昊辉新材料有限公司
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Problems solved by technology
At present, other effects are printed on high-hardness varnish, the adhesion is difficult to achieve, and the recoatability is not good.
Method used
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[0027] The present invention also provides a kind of preparation method of above-mentioned UV curing high surface tension varnish, comprising the following steps:
[0028] A) mixing the modified acrylic resin, the polyurethane acrylic resin and the photoinitiator, and stirring evenly to obtain a mixture;
[0029] B) stirring and mixing the mixture with wetting aid and benzyl acrylate to obtain UV curable high surface tension varnish.
[0030] In the present invention, the type, source and amount of the modified acrylic resin, polyurethane acrylic resin, photoinitiator, wetting aid and benzyl acrylate are the same as those of the above-mentioned modified acrylic resin, polyurethane acrylic resin, The types, sources and amounts of the photoinitiator, wetting aid and benzyl acrylate are the same, and will not be repeated here.
[0031] The stirring speed of the mixture in the preparation step A) of the present invention is preferably 1000 to 1500 revolutions / min, such as 1000 re...
Embodiment 1
[0040] See Table 1 for the amount of raw materials.
[0041] Mix the modified acrylic resin, polyurethane acrylic resin, photoinitiator PI184 and PIBP, and stir at a machine speed of 1000 rpm for 20 minutes until the photoinitiator is completely dissolved.
[0042]Under low-speed stirring, add the wetting aid BYK3650, stir at a speed of 1000 rpm for 30 minutes, add benzyl acrylate and stir well. Filter with a 200-mesh filter screen to obtain the UV curable high surface tension varnish.
Embodiment 2～3
[0044] According to the method in Example 1 and the proportions in Table 1, a UV-curable high surface tension varnish was prepared.
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Abstract
The invention provides UV-cured high-surface-tension gloss oil. The UV-cured high-surface-tension gloss oil comprises the following components in parts by weight: 50-60 parts of modified acrylic resin, 30-40 parts of polyurethane acrylic resin, 5-15 parts of benzyl acrylate, 5-10 parts of a photoinitiator and 0.5-2 parts of a wetting aid. According to the invention, the modified acrylic resin HC5110 is matched with the high-hardness resin HP6615, and then matched with the proper monomer and auxiliary additive, and after UV curing, an organic compound with large molecular weight is formed, andmeanwhile, the oil contains chemical bonds with extremely strong polarity, so that the oil has very high surface energy. Tests show that the dyne value of the cured coating is 40 dyn/cm or above, therequirement for high surface tension of the printed coating is met, adhesive force is promoted, and multi-layer recoating is facilitated. The invention further provides a preparation method and application of the UV-cured high-surface-tension gloss oil.
Description
technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a UV curing high surface tension varnish, a preparation method and application thereof. Background technique [0002] UV varnish is a transparent coating, also known as UV varnish. Its function is that after spraying or rolling coating on the surface of the substrate, it is irradiated by UV lamps and changes from liquid to solid instantly, thereby hardening the surface and making it scratch-resistant. And it looks beautiful, bright, and has a rounded texture. Among them, it is most widely used in the printing industry, such as surface treatment of tobacco and alcohol, cosmetics, food packaging, etc. [0003] However, due to the multi-layer coating printing in the printing process, in order to achieve a more beautiful effect, such as printing color ink on the varnish, special effects, etc. At present, other effects are printed on high-hardness varnish, and the adhe...
Claims
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Application Information
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