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Corrosion problem of copper plate in mask packaging bag

The copper plate of the mask packaging bag is first made of a gravure grid on the light and heavy chromate sensitized carbon paper, and then the continuous positive adjustment pattern is made. The printing plate is obtained by filling the plate and corroding it. Because the copper plate of the mask packaging bag is mainly controlled directly by humans, the plate-making stability, solid density uniformity, reprint repeatability and text clarity are poor, and it is generally only used for ordinary plastic flexible packaging printing. Food bags, food packaging bags For more information on mask packaging bags, mask packaging bag production, and mask packaging prices, please consult professional packaging bag manufacturers–!

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