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Color box printing process

Color box printing process
Color box printing process

Printing and plate making is one of the pre-press process. Compared with other processes, the traditional plate-making process has a relatively low degree of automation and many manual processes, which mainly depend on the experience of the operators. With the popularity of CTP and digital printing plate making technology, the traditional plate making process will gradually withdraw from the market.

After the film (also known as film) is sent to the plate making workshop by the photo processing workshop, the first thing to do is to cut off the blank part of the film, that is, cut the film. The correct method of operation is to place the film face up on the viewing platform, first look at the parity of the version number, if it is a strange version, cut off the blank part on the left side of the film; if there is a middle seam, cut it out It may be on the back side to prevent the imposition personnel from reprocessing; if it is an even code version, cut off the right side of the film. The above is the cutting method of the black and white film, if it is a color film, it is generally required to leave a registration mark on the top and bottom.

The key point in the revision is to remove the film marks that should not be on the plate. The traces after repairing the dirty with the revision pen must also be wiped off with a damp cloth in time to avoid dirty when printing. For scratches on the plate, it can be applied to the scratch with a fine brush and a little dilute sulfuric acid.