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Metal packaging coating and preparing method thereof

A metal packaging and coating technology, applied in the direction of anti-corrosion coatings, fire-resistant coatings, epoxy resin coatings, etc., can solve the problems of packaging food pollution, low acid and alkali resistance, and metal packaging coatings are not heat-resistant

Inactive Publication Date: 2019-01-15
CHANGSHA XIAORU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a metal packaging coating and its preparation method to solve the problems of metal packaging coatings in the prior art that are not heat-resistant, have low acid and alkali resistance, and are easy to cause pollution to packaged food

Method used

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  • Metal packaging coating and preparing method thereof
  • Metal packaging coating and preparing method thereof
  • Metal packaging coating and preparing method thereof

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preparation example Construction

[0029] 1. Preparation method of metal packaging coating

[0030] In an embodiment of the present invention, the preparation method of the metal packaging coating comprises the following steps:

[0031]S1: Weigh raw materials: 120-170 parts of bisphenol A glycidyl ether epoxy resin, 80-130 parts of modified phenolic resin, 60-100 parts of amino resin, 60-100 parts of water-based polyurethane resin, 22 parts of nano fumed silica -47 parts, 1-5 parts of pigment, 10-26 parts of silica sol, 15-30 parts of zinc oxide, 50-80 parts of silicon acrylic emulsion, 1-10 parts of sodium borate, 10-20 parts of urea, cyclohexylamine benzoate 15-40 parts, 30-50 parts of nano-ferric oxide, 20-45 parts of nano-alumina, 30-60 parts of solvent, 20-30 parts of additives;

[0032] The solvent is at least one of ethylene glycol n-butyl ether, n-butanol, ethylene glycol butyl ether, propylene glycol methyl ether acetate, xylene, propylene glycol methyl ether;

[0033] The auxiliary agent is at least...

Embodiment 1

[0040] A preparation method for metal packaging paint, comprising the following steps:

[0041] S1: Weigh raw materials: 120 parts of bisphenol A glycidyl ether epoxy resin, 80 parts of modified phenolic resin, 60 parts of amino resin, 60 parts of water-based polyurethane resin, 22 parts of nano fumed silica, 1 part of pigment, silica sol 10 parts, 15 parts of zinc oxide, 50 parts of silicon acrylic emulsion, 1 part of sodium borate, 10 parts of urea, 15 parts of cyclohexylamine benzoate, 30 parts of nanometer iron oxide, 20 parts of nanometer aluminum oxide, 30 parts of solvent , 20 parts of additives;

[0042] Described solvent is n-butanol;

[0043] The auxiliary agent is a polyester modified silicone surface control agent;

[0044] The pigment is an extender pigment;

[0045] S2: Put bisphenol A glycidyl ether epoxy resin, modified phenolic resin, amino resin, water-based polyurethane resin, nano fumed silica, silica sol, zinc oxide, silicon acrylic emulsion into the so...

Embodiment 2

[0049] A preparation method for metal packaging paint, comprising the following steps:

[0050] S1: Weigh raw materials: 150 parts of bisphenol A glycidyl ether epoxy resin, 110 parts of modified phenolic resin, 80 parts of amino resin, 80 parts of water-based polyurethane resin, 30 parts of nano fumed silica, 3 parts of pigment, silica sol 20 parts, 20 parts of zinc oxide, 60 parts of silicon acrylic emulsion, 6 parts of sodium borate, 15 parts of urea, 30 parts of cyclohexylamine benzoate, 40 parts of nanometer iron oxide, 35 parts of nanometer aluminum oxide, 50 parts of solvent , 25 parts of additives;

[0051] The solvent is 20 parts of ethylene glycol n-butyl ether, 10 parts of propylene glycol methyl ether acetate, and 20 parts of propylene glycol methyl ether;

[0052] The auxiliary agent is 15 parts of polyester modified silicone surface control agent, 10 parts of carboxylate;

[0053] Described pigment is 2 parts of extender pigment, 1 part of colored pigment;

[...

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Abstract

The invention discloses metal packaging coating and a preparing method thereof, belonging to the technical field of packaging coating. The coating includes following raw materials: bisphenol A glycidyl ether epoxy resin, modified phenolic resin, amino resin, waterborne polyurethane resin, nanometer fumed silica, pigment, silicon sol, zinc oxide, silicone acrylic emulsion, sodium borate, urea, cyclohexylamine benzoate, nanometer ferric oxide, nanometer alumina, a solvent and an auxiliary agent. The coating is prepared by softening, stirring, cooling, and other steps. The coating has excellent acid and alkali resistance, resistance to high temperature, environment protecting performance, safety and no toxicity.

Description

technical field [0001] The invention belongs to the technical field of packaging coatings, and relates to a metal packaging coating and a preparation method thereof. Background technique [0002] With the development of industrialization and the progress of manufacturing technology, metal packaging has gradually become a popular packaging form. With the accelerated pace of modern life and the diversified needs of the market, more and more raw ecological foods are processed into foods that can be stored for a longer period of time and eaten more conveniently. And these foods also need to adopt packing bag, packing box or packing jar to carry out bagging, packing before pushing to the market after finishing processing. In order to prevent the packaging can itself from being corroded, generally the inner and outer surfaces of the packaging can are coated with a food-grade anti-corrosion coating. Metal packaging coatings have the function of isolating narrow air, light, water ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D161/14C09D161/20C09D175/04C09D133/04C09D5/08C09D7/61C09D7/63
CPCC08K2003/2227C08K2003/2272C08K2003/2296C08K2003/387C08K2201/011C08L2201/08C08L2205/035C09D5/08C09D5/18C09D163/00C08L61/14C08L61/20C08L75/04C08L43/04C08K13/02C08K3/36C08K3/22C08K3/38C08K5/21
Inventor 不公告发明人
Owner CHANGSHA XIAORU INFORMATION TECH CO LTD
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