Application, preparation method and coating method of polyester type paint

A polyester type and coating technology, used in polyester coatings, anti-corrosion coatings, devices for coating liquids on surfaces, etc., can solve problems such as easy adsorption of furnace dust, and achieve excellent protection performance, environmental protection in the recycling process, and good resistance to electricity. Chemical Corrosive Effects
CN107022286AInactive Publication Date: 2017-08-08SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
Publication Date
2017-08-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides application of polyester type paint. The polyester type paint is applied to coating of an inner wall of a three-piece type packaging can for packaging acidic functional beverage. The invention further provides a preparation method and a coating method of the polyester type paint. By adopting the polyester type paint, the corrosion resistance of the packaging can is better than that of the prior art; the problem of a point which easily adsorbs furnace ash impurities is solved and requirements on bisphenol-A-free substances of partial national food industry standards are met.
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Description

technical field

[0001] The invention relates to the field of three-piece can metal packaging for functional beverages, in particular to the application, preparation method and coating method of a polyester coating. Background technique

[0002] At present, in the field of three-piece can metal packaging, the problem of shelf-life corrosion on the inner wall of acidic functional beverage cans has always been a difficult problem in the industry. Since the functional beverage liquid contains rich electrolytes and the beverage solution is highly acidic (PH is around 3-4), the beverage liquid will undergo electrochemical corrosion through the coating on the inner wall of the tank and the metal plate during the long shelf life. reaction, pitting corrosion may even occur in some positions, forming corrosion perforation, resulting in liquid leakage. The reason is mainly that the functional beverage contained in the three-piece metal beverage can contains more water-soluble electrol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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