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The properties of electrolytic tinplate printing ink are similar to ordinary inks, but there are special requirements in heat resistance and adhesion.

Due to the different substrates, the auxiliary structure of the tin coated steel sheet printing machine is also different from that of the paper offset printing machine.

In the production of printing iron, the drying of ink is a complicated physical and chemical reaction process. There are many factors that affect drying. Therefore, to control the drying speed of ink and ensure product quality, it is necessary to grasp the physical and chemical mechanism of ink drying, that is, the factors that affect the drying speed, in order to effectively perform high-speed metal printing operations.

In addition to a certain degree of water resistance, tinplate printing color inks also need their special requirements.

In order to improve the adhesion of the printing ink, the tinplate needs to be whitened before printing. White is the primary color of all pictures, with high brightness. After adding other high-energy hues, the brightness of each hue can be increased to form a color gradation.

Tinplate printing belongs to the category of metal printing in special printing. It is named after tinplate as the substrate and is a kind of special printing. Tin plate printing has its particularity in printing process, printing materials and equipment structure.

One of the main purposes of applying coatings on the inner wall of food cans is to prevent large amounts of tin from dissolving.

Canned containers made of tinplate usually need to be coated with a coating on the inner surface, the purpose of which is to prevent the chemical interaction between the contents of the can and the can wall and the contamination of the contents by trace amounts of harmful substances, and to protect the freshness of the contents As well as the original flavor, the starting food can be stored, transported and sold for a long time without affecting its edible value.

The performance of the tinplate coating should not only have corrosion resistance, but also have good adhesion, flexibility, non-toxic and tasteless. The tinplate coating must be able to withstand the heating during high-frequency resistance welding and high-pressure cooking at 121 ° C without loss of performance.

Tinplate has a long history of becoming a leader in food can packaging materials, and its effectiveness should be largely attributed to the important protective effect of internal tinplate coatings.