As with the hot stamping process, embossed is also a very
common process in book printing, which can emphasize the performance of some design.
We should also see a lot, high-end album, book cover, packaging box and so on.
Preparation of 1. punch process
Convex version: the design of the picture and text
engraving processing to the metal plate, a positive version of the picture and
text content protruding, a negative version of the text and text content
concave ;(convex plate is generally metal copper, zinc plate, gravure plate is
generally metal or resin version)
Material: Material that needs to be highlighted,
generally paper, or other material. So the embossed will looks good in book
printing.
Flow of 2. punch process
The following details about the punch process:
The graphic and text contents of the design are
respectively carved into two copper plates, a piece of content protruding, a
piece of content concave, forming a set of convex version. The concave and
convex 2 plates are accurately fixed in the upper and lower parts of the
machine; the paper is rotated in the middle of the punch plate;
Make sure the paper is in good position and press the two
plates together using the heavy pressure of the machine.
The paper in the middle (the red part) is pressed by the
machine to form a convex and concave effect, and then the punch plate is separated
by the machine, and finally the paper is formed in book printing
Summary
1. If it is colorless punch convex, and cover steel is
the same, but the content of steel seal can be customized by the moderator.
2. Different paper fiber length, there are some
differences in the depth of bump;
3. Punch process, can be like the picture above as a
colorless punch (plain punch), can be bronzing back punch (three-dimensional
bronzing), can also be printed punch, and so on, we can talk about these later.