Materials and processes are required before formal printing

Materials and processes are required before formal printing

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Before the official printing, add some paper, and return the counter to zero after printing. Sampling inspection should be carried out frequently during printing, paying attention to changes in water, ink changes, printing durability, blanket cleaning, and printing machine oil supply, gas supply and operation.

After the end of each day of printing, or when each batch of prints is completed, the post-printing processing operations are required, including: ink fountain, ink roller, water roller, blanket, impression cylinder cleaning, printing plate, and sheet processing. And maintenance of the printing machine, etc.

The inspection of the printing plate includes: printing plate type, color inspection, plate thickness inspection, plate mouth size inspection, rule line inspection, plate depth inspection, and layout image quality Inspection of damage, scratches, etc.

Debugging of printing pressure: According to the thickness of the printing plate, the specification of the paper, the thickness of the blanket, the thickness of the lining material, the requirements of the printing process, etc., the appropriate roller lining is selected, so that the printing pressure meets the printing process and quality requirements.