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Environmentally-friendly high-wear-resistant high-gloss water-based varnish and preparation process thereof
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A water-based varnish, high wear-resistant technology, applied in the direction of coating, etc., can solve the problems that varnish cannot meet high gloss and high wear resistance, and achieve the effect of improving gloss and abrasion resistance
Inactive Publication Date: 2019-08-23
杭州天龙油墨有限公司
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However, there are some defects in the water-based varnishes currently on the market. High-wear-resistant varnishes cannot meet the requirements of high gloss, and high-gloss varnishes cannot meet the requirements of high wear-resistance.
The long-standing water-based varnish preparation technology cannot solve this contradiction, resulting in the production of packaging materials that can only meet the general low standard requirements of a single condition
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Embodiment 1
[0020] (1) Environment-friendly high wear-resistant high-gloss water-based varnish formula (percentage by weight)
[0033] Step 1: Add the modified acrylic acid film-forming emulsion and the modified acrylic non-film-forming emulsion in the raw materials into the reactor according to the predetermined ratio, and stir with a disperser to disperse evenly. The speed of the stirring paddle is 500-700rpm / min. Continuous stirring and dispersion time is 3-5 minutes.
[0064] (2), preparation method: identical with embodiment 1
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Abstract
The invention discloses environmentally-friendly high-wear-resistant high-gloss water-based varnish and a preparation process thereof. The varnish is prepared from the following raw materials, in parts by weight: 10-30 parts of a modified acrylic film-forming emulsion, 30-65 parts of a modified acrylic emulsion without forming a film, 8-20 parts of an elastic emulsion, 0.1-5 parts of a water-basedfilm-forming auxiliary agent, 0.1-2 parts of a colloidal protective agent, 3-5 parts of a high-gloss wax emulsion, 3-5 parts of a high-wax-resistant water dispersion, 0.1-0.5 part of a defoaming agent, 0.5-1.5 parts of a wetting agent, 0.1-0.5 part of a preservative and 3-5 parts of deionized water. The varnish provided by the invention combines double performance of high wear resistance and highgloss, has the advantages of good flexibility, a fast drying speed and good anti-blocking printing property, can be used on a sheet-fed gravure press, a continuous gravure press and an offset printingglazingmachine, and is the environmentally-friendly water-based varnish without toxicity, pollution or harmful gas emission.
Description
technical field [0001] The invention relates to the technical field of water-based varnish preparation technology, in particular to a water-based, environmentally friendly, high-wear-resistant, high-gloss varnish used in the printing industry, the field of polymer materials, the coating industry and the flexible packaging industry and a preparation process thereof. Background technique [0002] With the improvement of relevant national laws and the enhancement of public awareness of environmental protection, the current market requirements for product packaging continue to increase. Traditional solvent-based varnishes generally contain ingredients that are harmful to humans, including alkylphenol compounds. In this case, water-based varnish has emerged as the times require, and it has more and more widely replaced traditional solvent-based varnish. However, there are some defects in the water-based varnishes currently on the market. High-wear-resistant varnishes cannot meet ...
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Application Information
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