When we see the printing size, we usually
start to make up the plate. When assembling, we will involve the problem of
paper bite. Many people are not very clear about what the bite is. Let's
briefly introduce the following:
Bite concept
Bite refers to the position where the paper
is clamped by the paper feeding device of the printing machine when the
printing machine transmits paper in book
printing china. This is the part that cannot be colored by printing ink.
When designing the layout or assembling, there should be no picture content.
Whether it is to open, 4 open or 8 start printing, there is a bite on one side
when conveying paper. Bite is the side of the machine where the paper is first
transferred into the printing process, and it is also the part that the
printing plate can not touch. Generally, it is controlled between 7mm and 15mm,
so the non printing area of bite part must be deducted when calculating the
actual printing area.
Self reproduction of book printing china means that in one printing sheet, one half is
printed on the front and the other half is printed on the reverse side. The
front and back sides are printed once with the same plate to form two kinds of
printed matter. In printing, printing and PS plate can be saved. According to
the layout form, it can be divided into top-down self flipping and left-right
self flipping.
When assembling, pay attention to the left
and right version to leave a bite position, and the upper and lower version to
leave two bite positions.
