What is the meaning of bleeding position and knife die in packaging design? Are the knife dies the same shape and size, or do you want to add bleeding positions?

Color bleeding line is a technical term in the printing industry, which refers to the printing of super-publishing center. In the printing industry, the cutting position is not very accurate because the tools used to cut printed matter are mechanical tools.

In order to solve the problem of unexpected color on the edge of printed matter caused by inaccurate cutting, the general designer will add 2~4mm reserved position around the cutting position of the picture to ensure the consistency of the finished product effect. The design size is always larger than the finished product size, and the big edges should be cut off after printing. This part to be printed and cut off is called printing bleeding.

When a box is printed, it is a flat paper. To make a box after printing, it is necessary to make a flat die like the box for stamping. This kind of die is the printing knife die, which can also be referred to as knife die or punching die.

Tool and die drawings are designed and drawn by designers with AUTOCAD or impact, and then saved in file format, so as to start the equipment for template processing. After completion, install the die tangent to make the finished die.

When printing a carton, the mold factory will draw the mold drawing first, and the graphic design will design the packaging box according to the mold drawing, and add the bleeding position in the process of designing the carton.

Extended data:

The printing process includes prepress, printing and postpress. In post-press processing, there is a process of die-cutting indentation, in which die-cutting is to cut the printed matter into folio, quarto or octavo sizes. Indentation is the place where the paper is thick and needs to be folded. Make an indentation first, then fold it.

The traditional die is to draw on the die plate with a pencil or ballpoint pen, and then saw it with a sawing machine, which will cause dislocation and errors during the movement; Processing speed is slow.

After using the laser cutting machine, the drawing design can be carried out directly on the computer, and the tool template is automatically cut and formed by the laser cutting machine without manual intervention. Small error and high speed.

Compared with the traditional hand-made, the computer machete machine can not completely bend the doll's shape by 100%, but it has extremely high cutting accuracy in simple shape and straight knife. Effectively accelerate production efficiency.

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