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Waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance

An environmentally friendly, beer-labeled technology, applied in paper coating, coating, fiber raw material treatment, etc., to achieve excellent ink retention effect, excellent ink adhesion, and low odor effect

Active Publication Date: 2015-04-29
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a water-based environment-friendly direct-plating beer label bottom coating capable of ink retention in order to overcome the defect that the water-based beer label bottom surface coating has no ink retention performance in the current technology.

Method used

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  • Waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance
  • Waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance
  • Waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment relates to a preparation method of a water-based environment-friendly direct-plating beer label bottom coating that can allow ink to reside. In this method, the preparation of the bottom coating component includes the following steps:

[0029] 1. Prepare materials according to the formula in Table 1;

[0030] 2. Put the solvent into the reaction kettle, turn on the mixer to a medium speed of 700-800 rpm, add the water-based acrylic emulsion into the reactor, and stir at 700-800 rpm for 60 minutes until the mixture is uniform;

[0031] 3. Add co-solvent at a speed of 1000-1200 rpm, and stir until evenly mixed;

[0032] 4. Add leveling agent to the reaction kettle, and stir at a medium speed of 700-800 rpm for 10-20 minutes;

[0033] 5. Add defoamer to the reaction kettle, and stir at a high speed of 1000-1200 rpm for 10-20 minutes to obtain the primer component.

[0034] The preparation of surface coating component comprises the steps in the method:

...

Embodiment 2

[0041] Its formula is shown in Table 1, and the preparation method is the same as in Example 1.

Embodiment 3

[0043] Its formula is shown in Table 1, and the preparation method is the same as in Example 1.

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Abstract

The invention discloses waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance. The paint comprises a base paint component and a surface paint component, wherein the base paint component comprises 40-60 parts of a waterborne acrylic emulsion, 0.1-0.2 parts of a leveling agent, 0.02-0.08 parts of an antifoaming agent, 10-30 parts of a cosolvent and 20-40 parts of a solvent; the surface paint component comprises 8-18 parts of waterborne polyurethane, 10-20 parts of waterborne epoxy resin, 5-10 parts of a waterborne epoxy resin curing agent, 0.05-0.3 parts of an adhesion promoter, 0.05-0.1 parts of a wetting agent, 0.1-0.25 parts of a wax emulsion, 0.05-0.1 parts of an antifoaming agent and 60-70 parts of a solvent. Compared with the prior art, the paint belongs to environment-friendly waterborne paint, is low in odor, low in volatile organic matter content, high in aluminizing brightness, good in surface leveling property and excellent in ink adhesive force, and has the excellent ink retaining effect, the label removing time is less than 300 s, and an aluminized coating is completely cleaned up.

Description

technical field [0001] The invention relates to a printing coating for beverage packaging, in particular to a water-based, environment-friendly direct-plating beer label bottom coating capable of resident ink. Background technique [0002] Ink retention means that the ink layer on the surface of the beer label can adhere to the backing paper during the process of beer bottle delabeling in the alkali tank, without falling off or dissolving in the alkali tank, so as not to pollute the alkali tank. At present, all domestic direct-plating beer label bottom coatings that can be ink-retained are solvent-based products, and water-based bulk products have no ink-residence performance due to their poor alkali resistance. Chinese patent CN102041720 proposes a primer for beer label paper, and evaluates its alkali resistance based on the fact that the aluminum layer is not washed by alkali, which does not involve the key issue of ink retention. In addition, strong alkali resistance will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/82D21H19/80D21H19/20D21H19/24D21H21/00
Inventor 虞明东胡小毅汪哲
Owner SHANGHAI WEIKAI CHEM
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