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Acid resistance and high temperature resistance antiseptic waterborne coating for inner wall of pop can

A technology of pop-top cans and high temperature resistance, applied in the direction of coating, etc., can solve the problems of large coating film thickness, food can storage, hidden dangers of hygiene and safety, low recycling rate of powder materials, etc., and achieve good acid resistance

Active Publication Date: 2011-08-10
清远慧谷新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no volatile organic solvents in powder coatings, but there are also some disadvantages: large coating thickness, low recycling rate of powder materials, large initial investment in equipment and hidden dangers of dust explosion, etc.
The water-based epoxy resin emulsions developed in recent years that can be used for tank inner coatings are usually prepared by chemical modification methods. The water-based epoxy resin emulsions prepared by chemical modification methods are generally resistant to high temperature sterilization and chemical resistance. There are hidden dangers in the storage, hygiene and safety of canned food

Method used

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  • Acid resistance and high temperature resistance antiseptic waterborne coating for inner wall of pop can
  • Acid resistance and high temperature resistance antiseptic waterborne coating for inner wall of pop can
  • Acid resistance and high temperature resistance antiseptic waterborne coating for inner wall of pop can

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of acid-resistant, high-temperature sterilization-resistant water-based paint for the inner wall of pop cans, the composition of its raw materials is as follows in Table 1:

[0035] Table 1: Raw material composition of an acid-resistant, high-temperature sterilization-resistant water-based coating for the inner wall of pop-top cans

[0036]

Embodiment 2

[0038] A kind of acid-resistant, high-temperature sterilization-resistant water-based paint for the inner wall of pop-top cans, the composition of its raw materials is as follows in Table 2:

[0039] Table 2: Raw material composition of an acid-resistant, high-temperature sterilization-resistant water-based coating for the inner wall of pop-top cans

[0040]

Embodiment 3

[0042] A water-based coating for the inner wall of pop cans with acid resistance and high temperature sterilization resistance, the composition of its raw materials is as follows in Table 3:

[0043] Table 3: Raw material composition of an acid-resistant, high-temperature sterilization-resistant water-based coating for the inner wall of pop-top cans

[0044]

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Abstract

The invention discloses an acid resistance and high temperature resistance antiseptic waterborne coating for an inner wall of a pop can, which comprises the following raw materials in part by mass: 15 to 30 parts of waterborne acrylic monomer graft modified epoxy phosphate resin, 1 to 3 parts of waterborne amino resin, 0.2 to 0.8 part of acid catalyst, 0.1 to 0.5 part of wetting agent, 0.1 to 0.3part of antifoaming agent and 2 to 5 parts of complex solubilizer. The coating has good acid resistance, high temperature resistance and sterilization performance, has no damage to the environment and a human body, and is green and environmental-friendly.

Description

technical field [0001] The invention relates to an acid-resistant, high-temperature sterilization-resistant water-based coating for the inner wall of pop-top cans. Background technique [0002] Food, especially beverages, condiments, alcohol, etc. are highly corrosive to their packaging materials and containers, and have high requirements for the corrosion resistance of food containers and packaging materials. Therefore, the inner walls of food containers and packaging materials are coated with an acid-resistant, oil-resistant, and alkali-resistant anti-corrosion coating. The hygienic quality of paint directly affects food safety. Coatings used for the inner walls of food containers must meet strict environmental protection requirements. Powder coatings and water-based coatings have been widely used in the canning industry. There are no volatile organic solvents in powder coatings, but there are also some disadvantages: large coating film thickness, low powder recycling ra...

Claims

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Application Information

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IPC IPC(8): C08F283/10C09D151/08C08F8/14
Inventor 冯志德唐靖熊华山兰家勇李国权高威
Owner 清远慧谷新材料技术有限公司
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