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High-gloss paint for vacuum aluminized paper and preparation method and application thereof

A vacuum aluminized paper, high-gloss technology, applied in the direction of paper coating, coating, papermaking, etc., can solve the problems of strong odor, environmental pollution, poor storage stability, etc., to improve cohesive strength, improve wear resistance, durability The effect of improving grinding degree and storage stability

Active Publication Date: 2011-09-07
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-gloss coatings for vacuum aluminum-coated paper are solvent-based, alcohol-soluble, and emulsion-based coatings. Among them, solvent-based and alcohol-soluble coatings contain a large amount of organic solvents, which have a strong smell and are easy to pollute the environment.
[0004] Chinese patent (CN101250834A) discloses a kind of surface coating coating for vacuum metallized paper treatment, by adding acrylic resin, acrylate resin, neutralizing agent, leveling agent and wear-resistant agent etc. to prepare the vacuum metalized paper surface coating coating It has excellent transparency and abrasion resistance, but it needs to add anti-abrasion agent, and its storage stability is slightly poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 0.5 g of hydroxyethyl acrylate (acid value 5mgKOH / g, hydroxyl value 40mgKOH / g), 2 g polyvinyl alcohol (weight average molecular weight 2000, alcoholysis degree of 50%), 5 g acrylic resin (acid value 150mgKOH / g, molecular weight 1000), 0.5g of diethanolamine and 75g of water were mixed, and the temperature was raised to 80°C to obtain solution A. Then, solution A, 100 grams of acrylate resin (glass transition temperature Tg is -10°C), 0.1 grams of polydimethylsiloxane, 0.2 grams of polyester modified silicone and 425 grams of water were mixed and stirred for 30 minutes to prepare A high-gloss coating for vacuum aluminized paper treatment, with a pH of 6.5 and a weight solid content of 15.0%.

Embodiment 2

[0030] 1.5 grams of diethylene glycol monoacrylate (acid value 8mgKOH / g, hydroxyl value 50mgKOH / g), 5 grams of polyvinyl alcohol (weight average molecular weight 4000, alcoholysis degree 70%), 15 grams of acrylic resin ( The acid value is 280 mgKOH / g and the molecular weight is 3000), 7 g of triethylamine and 100 g of water are mixed, and the temperature is raised to 55° C. to obtain solution A. Then, solution A, 100 grams of acrylate resin (glass transition temperature Tg is 0°C), 0.5 grams of tributyl phosphate, 0.5 grams of silicone modified polyacrylate and 300 grams of water were mixed and stirred for 30 minutes to obtain vacuum aluminum plating A high-gloss coating for paper treatment, with a pH of 5.0 and a solid content of 22.8% by weight.

Embodiment 3

[0032] 2 grams of hydroxypropyl acrylate (acid value 12mgKOH / g, hydroxyl value 60mgKOH / g), 10 grams of polyvinyl alcohol (weight average molecular weight 10000, alcoholysis degree of 80%), 35 grams of acrylic resin (acid value 400mgKOH / g, molecular weight 5000), 15g of diethanolamine and 138g of water were mixed, and the temperature was raised to 80°C to obtain solution A. Then, solution A, 100 grams of acrylic resin (glass transition temperature Tg is 30°C), 1.0 grams of lauryl phenylacetate, 0.8 grams of polyester-modified silicone and 92 grams of water were mixed and stirred for 30 minutes to prepare vacuum aluminum plating High-gloss paint for paper treatment, with a pH of 8.0 and a weight solid content of 40.0%.

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Abstract

The invention provides high-gloss paint for vacuum aluminized paper and a preparation method and application thereof. The high-gloss paint comprises the following components in parts by weight: 0.5-2.0 parts of hydroxyl acrylate resin, 2-10 parts of polyvinyl alcohol, 5-35 parts of acrylic resin, 0.5-15 parts of neutralizer, 100 parts of acrylate resin, 0.1-1.0 part of defoaming agent, 0.2-0.8 part of flatting agent and 500-1000 parts of water. As for the prepared high-gloss paint for treatment of vacuum aluminized paper, the solid weight content is 15-40%, and the pH value is 5-8. Besides, the high-gloss paint can effectively overcome the disadvantages of the existing process, so that the gloss, abrasive resistance and storage stability of the paint are greatly improved.

Description

Technical field [0001] The invention relates to a preparation method and application of a high-gloss paint for vacuum aluminized paper. Background technique [0002] Vacuum aluminized paper is mainly composed of base paper, aluminum layer and coating. It has good gloss and smoothness, good flexibility, high fastness to spray aluminum layer, beautiful and environmentally friendly, and has good printing performance and mechanical processing performance. The surface strength of aluminized paper is high, it can be compatible with the speed of high-speed printing presses, and it can also withstand the tension generated by the increase in ink viscosity, which has good adaptability to improve production efficiency and stabilize printing quality. The surface tension of aluminized paper is conducive to the transfer of ink during printing, and the printing ink film is flat, smooth and clear and complete. Therefore, it can be widely used in the exquisite packaging of tobacco, wine, bottle ...

Claims

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Application Information

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IPC IPC(8): D21H19/22D21H19/20D21H19/08
Inventor 施晓旦王养臣周海波
Owner SHANGHAI DONGSHENG NEW MATERIALS
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