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Water-based temperature resistant single-coating transfer laser aluminizing paint and preparation method thereof

A transfer laser, water-based technology, used in paper coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high volatile organic compound content, environmental pollution of production and use, and inability to use, and achieves a wide range of molding temperatures, The effect of good printing adaptability and good solvent resistance

Active Publication Date: 2010-07-07
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing temperature-resistant laser transfer coatings are solvent-based systems and a small part of water-based systems. The solvent-based systems use a large amount of organic solvents. On the one hand, the high content of volatile organic compounds (VOCs) causes serious pollution to the production and use environment. On the one hand, there is also the problem that the cost of solvents is subject to fluctuations in international oil prices; and a small number of water-based systems currently in use cannot meet the temperature resistance requirements and cannot be used in many application fields
Water-based coatings have the incomparable environmental protection advantages of solvent-based coatings. It has become a widespread consensus. The temperature-resistant laser transfer coating is also a water-based road. The environmentally friendly temperature-resistant moldable water-based transfer coating has not yet seen related patents. or literature reports

Method used

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Examples

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Effect test

Embodiment 1

[0049] A method for preparing a water-based temperature-resistant single-coat transfer laser aluminized coating, the method comprising the following steps:

[0050] (1) Prepare materials according to the following components and contents: 30kg water-based resin, 20kg temperature-resistant water-based resin, 10kg co-solvent, 39.45kg deionized water, 0.2kg pH regulator, 0.1kg wetting agent, 0.2kg leveling agent, 0.05 kg defoamer, wherein the water-based resin is acrylic emulsion, the glass transition temperature of the acrylic emulsion is 0-30°C, and the molecular weight is ≥200,000; the temperature-resistant water-based resin is a water-based aldehyde and ketone resin with a softening point of 120°C The cosolvent is ethanol; the pH regulator is ammonia water; the wetting agent is sodium dodecylbenzenesulfonate; the leveling agent is polyether modified polysiloxane; the defoamer is commercially available KLD-970;

[0051] (2) Put the water-based resin and the temperature-resista...

Embodiment 2

[0056] A method for preparing a water-based temperature-resistant single-coat transfer laser aluminized coating, the method comprising the following steps:

[0057](1) Prepare materials according to the following components and contents: 40kg water-based resin, 10kg temperature-resistant water-based resin, 5kg water-based inorganic filler, 20kg co-solvent, 24kg deionized water, 0.2kg pH regulator, 0.5kg wetting agent, 0.1kg fluid Leveling agent, 0.2kg defoamer, wherein the water-based resin is polyvinyl alcohol PVA, alcoholysis degree ≥ 85; the temperature-resistant water-based resin is polycarbonate polyurethane water dispersion; the water-based inorganic filler is nano-silica water dispersion; The co-solvent is isopropanol; the pH regulator is triethanolamine; the wetting agent is fatty acid polyoxyethylene ester (AE); the leveling agent is amino-modified organosiloxane; the defoamer is polyoxyethylene amine;

[0058] (2) Put the water-based resin and the temperature-resista...

Embodiment 3

[0064] A method for preparing a water-based temperature-resistant single-coat transfer laser aluminized coating, the method comprising the following steps:

[0065] (1) Prepare materials according to the following components and contents: 35kg water-based resin, 15kg temperature-resistant water-based resin, 2kg water-based inorganic filler, 15kg co-solvent, 32.35kg deionized water, 0.2kgpH regulator, 0.2kg wetting agent, 0.15kg Leveling agent, 0.1kg defoamer, wherein the water-based resin is vegetable oil modified polyurethane; the temperature-resistant water-based resin is water-based aldehyde and ketone resin with a softening point of 140 °C; the water-based inorganic filler is nano-alumina aqueous dispersion The co-solvent is isopropanol; the pH regulator is triethylamine; the wetting agent is sodium hydroxymethyl dodecyl carboxylate; the leveling agent is polyether modified polysiloxane; Sell ​​LH-511;

[0066] (2) Put the water-based resin and the temperature-resistant w...

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Abstract

The invention relates to a water-based temperature resistant single-coating transfer laser aluminizing paint and a preparation method thereof; the paint includes the following components (by weight portion): 30-40 portions of water-based resin, 10-20 portions of temperature resistant water-based resin, 0-5 portions of water-based inorganic filler, 10-20 portions of cosolvent, 18-40 portions of deionized water, 0.2-0.3 portion of pH value regulator, 0.1-0.5 portion of wetting agent, 0.1-0.2 portion of leveling agent and 0.05-0.2 portion of defoamer; the resin component and the filler are loaded in a reactor to be stirred at low speed, and then pH value regulator, wetting agent, leveling agent and the defoamer are added to the reactor, and the mixture is stirred and filtered to obtain the product. Compared with prior art, the invention has advantages of environmental protection, lower cost, good printing adaptability, broader range of proper mould pressing temperature, and good mold pressing effect and can directly replace the solvent and water-based transfer laser aluminizing paint in prior art.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a water-based temperature-resistant single-coat transfer laser aluminized paint and a preparation method thereof. Background technique [0002] At the end of the 20th century, compared with the traditional composite process, the transfer aluminum plating process set off a revolution in the packaging material industry due to its advantages of low resource consumption, environmental protection, strong metallic appearance, laser effect, and low cost. Tailor-made transfer coatings for aluminum plating (hereinafter referred to as transfer coatings) have been widely used. The basic performance of the laser transfer coating is its peelability and molding effect. The peelability is the ease of clean peeling from the base film (PET polyester film, OPP stretched polypropylene film, etc.). Characterized by the peeling force between the coating and the base film. The embossing ef...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D129/04C09D127/06C09D175/04C09D175/14C09D101/18D21H19/22D21H19/24D21H19/34
Inventor 董海普张芳芳张阳红戴胜杰邓庆仪
Owner SHANGHAI WEIKAI CHEM
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