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Direct vacuum aluminum plating water-based under-coating paint composition and preparation method thereof

A technology of vacuum aluminum plating and composition, which is applied in paper coating, polyurea/polyurethane coating, coating, etc., can solve the problems of insufficient stiffness, aluminum plating, etc., and achieve low VOC content, good film-forming property, The effect of reducing production costs

Active Publication Date: 2015-05-06
SHANGHAI CHENGYING NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects in the prior art, the purpose of this invention is to provide a kind of direct vacuum aluminized water-based primer composition and preparation method thereof, to solve the problems caused by the non-overpressure treatment of ordinary direct-plating coatings for ordinary transfer papers. Flooding of aluminum plating, lack of stiffness

Method used

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  • Direct vacuum aluminum plating water-based under-coating paint composition and preparation method thereof
  • Direct vacuum aluminum plating water-based under-coating paint composition and preparation method thereof
  • Direct vacuum aluminum plating water-based under-coating paint composition and preparation method thereof

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Embodiment 1～6

[0031] The embodiment relates to the direct vacuum aluminum plating water-based primer coating composition: the coatings described in Examples 1 to 6 include parts by weight as shown in Table 1 below, and the specific components are shown in Table 2 below:

[0032] Table 1

[0033]

[0034] Table 2

[0035]

Embodiment 7

[0037] According to the formula provided in Examples 1 to 3, this example provides a method for preparing a direct vacuum aluminized water-based primer coating composition, comprising the following steps:

[0038] Step 1. Put the self-crosslinking acrylic resin and the aromatic water-based polyurethane resin in the reaction kettle and stir for 5 minutes at a low speed, and the stirring rate is 100 rpm;

[0039] Step 2. Increase the stirring speed to 300rpm, add crosslinking agent and water to the reaction kettle in turn, and continue stirring for 5 minutes;

[0040] Step 3: Add additives to the reaction kettle one by one, control the pH value of the coating at 7-8, and stir for 15 minutes;

[0041] Step 4: Add the rheology control agent, control the viscosity at 30-40s (coat in 4 cups, 25°C), stir for 10 minutes; filter to obtain the direct vacuum aluminized water-based primer; the pore size of the filter is 300 mesh.

Embodiment 8

[0043] According to the formula provided in Examples 4 to 6, this example provides a method for preparing a direct vacuum aluminized water-based primer coating composition, comprising the following steps:

[0044] Step 1. Put the self-crosslinking acrylic resin and aromatic water-based polyurethane resin in the reaction kettle and stir at a low speed for 10 minutes, and the stirring rate is 200 rpm;

[0045] Step 2. Increase the stirring speed to 500rpm, add crosslinking agent and water to the reaction kettle in turn, and continue stirring for 10 minutes;

[0046] Step 3: Add additives to the reaction kettle one by one, control the pH value of the coating at 8, and stir for 10 minutes;

[0047] Step 4: Add a rheology control agent, control the viscosity at 30-40s (coat in 4 cups, 25°C), stir for 15 minutes; filter to obtain a direct vacuum aluminized water-based primer; the pore size of the filter is 300 mesh.

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Abstract

The invention provides a direct vacuum aluminum plating water-based under-coating paint composition and a preparation method thereof. The paint comprises the following components in parts by weight: 20-30 parts of a self-cross-linking acrylic resin, 10-20 parts of an aromatic water-based polyurethane resin, 1-5 parts of a cross-linking agent, 40-70 parts of water, 0.05-2 parts of aids and 0.2-3 parts of a rheology controller. The problems that the plated aluminum is dazzled and the stiffness is insufficient because the common direct plating coating used for common transfer paper is not subjected to overpressure treatment are solved. Compared with the prior art, the composition disclosed by the invention can be directly used for common transfer paper with obvious cost advantage, imported direct plating special paper with high price does not need to be used, and the production cost of direct plating paper is greatly reduced. In addition, by virtue of the good film-forming property of the formula system, any extra coalescing agent or cosolvent does not need to be added, and the composition has the environment-friendly attributes such as low smell, low VOC content, safety, non-toxicity and the like.

Description

technical field [0001] The invention relates to a direct vacuum aluminum-plating water-based primer composition and a preparation method thereof. Background technique [0002] Compared with aluminum foil composite paper, vacuum aluminum-coated paper is more in line with the development trend of the packaging paper industry because it has both cost reduction and energy-saving and environmental protection properties. This is a major trend, replacing aluminum foil paper as a new type of packaging paper. [0003] At present, the production of vacuum direct-coated paper mainly includes two processes: transfer aluminum plating and direct aluminum plating. The former is complex in process but has high aluminum plating brightness and good appearance effect. The latter has simple process and slightly lower cost but slightly inferior aluminum plating appearance effect. These can be said to have their own advantages in terms of different application requirements. [0004] The direct ...

Claims

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Application Information

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IPC IPC(8): D21H19/20D21H19/24D21H21/06D21H21/12C09D133/00C09D175/04C09D7/12
Inventor 虞明东谢允斌戴胜杰
Owner SHANGHAI CHENGYING NEW MATERIALS
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