What are the techniques for making handbags?

There is a saying that goes "practice makes perfect". Let's share some of our long-term experience in making handbags!
Firstly, there are processing techniques for making handbags. It is difficult to print a width of about 1 centimeter on the edge of the mouth, and there are other color codes and regular lines outside the finished product range. In order to meet this requirement, the paper should be cut slightly larger than the finished product. During post-press processing, the remaining waste paper can be cut off using a die-cutting machine or paper cutting machine.
The following is the indentation processing for handbags. If thick cardboard is used instead of indentation lines, indentation and die cutting cannot be carried out simultaneously. Therefore, handbags are usually subjected to indentation processing instead of die cutting.
If excess waste paper is cut off before indentation, it will affect the accuracy of the indentation. If it is left to cut after molding, the paper will be easily deformed and difficult to cut. So usually, the paper is cut to match the size of the finished product before printing, so that the paper needs to be indented after printing, and there is no need to cut it again.
The length, width, and height of a rectangular handbag are respectively abh, while the finished product size abh and the unfolded AB size of the finished product are converted in this way: the unfolded length A=2 × (a+b)+Side adhesive opening, unfolded width B=bottom+h+fold opening, the side adhesive opening is usually 2 centimeters, and the fold opening is usually 5 centimeters. If the size of the paper opening is too tight, the adhesive and folding edges on the side can be narrower, and if the handbag is large, it can be wider. The bottom of the handbag=bottom adhesive+0.5 × b. The adhesive opening at the bottom is usually about 1 centimeter, and if the handbag is a bit larger, it can be slightly wider.