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Inner-wall paint for liquid food can with high-temperature resistant sterilization

A water-based food, high temperature resistant technology, used in antifouling/underwater coatings, fire retardant coatings, starch coatings, etc. problems, to achieve the effect of improving storage stability, reducing commodity value, and making the paint layer tough

Inactive Publication Date: 2017-01-11
蚌埠飞浦科技包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-based epoxy resin emulsion developed in recent years that can be used for the inner coating of tanks has poor resistance to high temperature sterilization and acid corrosion, which has great hidden dangers for the storage, hygiene and safety of food cans.

Method used

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  • Inner-wall paint for liquid food can with high-temperature resistant sterilization

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Embodiment Construction

[0021] A water-based food tank inner wall coating with high temperature and sterilization resistance, which is made of the following components in parts by weight: modified polyester resin 82, ethyl acrylate 24, shellac resin 4, starch gel powder 6, filler 25, additives 2. Solvent 62,

[0022] The filler is formed by mixing modified titanium dioxide and silicon powder in a mass ratio of 3:1;

[0023] The auxiliary agent includes a dispersant, a leveling agent and a defoamer, wherein the mass ratio of the dispersant, the leveling agent and the defoamer is 1:0.8:0.3;

[0024] The starch gel powder is boiled cassava starch, dried in the sun, and then ground into powder, and the fineness particle diameter of the powder is 350-400 mesh;

[0025] The preparation method of the modified titanium dioxide is as follows: the titanium dioxide is made into an aqueous solution with a mass concentration of 12.5%, and nano-silica, which is one-tenth of the mass of the titanium dioxide, is ad...

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Abstract

The invention discloses inner-wall paint for liquid-food can with high-temperature resistant sterilization. The paint is prepared from the following compositions: modified polyester resin, ethyl acrylate, shellac resin, starch gel powder, stuffing, adjuvant, and solvent. Compared with other existing inner-wall paint for liquid-food can, the present inner-wall paint for liquid-food can is capable of greatly enhancing the storage stability of canned food. The paint film has long life, and is 2-3 times higher than the life of normal canned food inner-wall paint. The paint layer formed after coatings of the inner-wall paint for canned food is firm, with greater brightness, strong adhesion, acid resistant, sulfur resistant, strong salt resistant, stable in functionality, hard to be corroded, and non-discoloring. The present paint has good high-temperature resistant ability and sterilization ability; it can adapt to most of the high-temperature sterilizations at different temperature levels on the market; meanwhile the paint is not harmful to environment, does no harm to human bodies, and is beneficial for green environmental protection.

Description

technical field [0001] The invention relates to the field of metal packaging coatings, in particular to a coating for the inner wall of a water-based food can with high temperature resistance and sterilization. Background technique [0002] Food, especially beverages, condiments, alcohol, etc. are highly corrosive to their containers, and have high requirements for the corrosion resistance of food cans. Therefore, a layer of acid-resistant, oil-resistant, alkali-resistant anti-corrosion coating is applied to the inner wall of the food tank. The hygienic quality of paint directly affects food safety. The water-based epoxy resin emulsion developed in recent years that can be used for the inner coating of cans has poor resistance to high temperature sterilization and acid corrosion, which poses great hidden dangers to the storage, hygiene and safety of canned food. Contents of the invention [0003] In order to overcome the above disadvantages, the present invention provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D193/00C09D103/02C09D5/14C09D7/12
CPCC09D167/06C08K2201/011C08K2201/014C08L2201/08C08L2205/035C09D5/14C09D5/18C08L93/00C08L3/02C08K13/06C08K9/04C08K2003/2241C08K3/36
Inventor 赵小弟
Owner 蚌埠飞浦科技包装材料有限公司
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