Bag Printing and Molding Methods

(1) Clean the bottom of the die-cutting machine first, stick the double-sided adhesive, and then lay a layer of cardboard with a basis weight of about 500 g/m2 to make it firmly adhere to the bottom plate.

(2) Using a larger molding pressure, the die cutter is used to indent the cardboard. After the cardboard is pressed several times, deeper grooves will appear. Care must be taken not to crush the cardboard.

(3) Reduce the molding pressure, put the paper, and press the fold marks. This crease needs to have a certain depth, so that the manual folding is not easy to run, but not too deep, so that the paper is broken after being crushed or folded, or because the plastic deformation of the crease is too heavy, resulting in the portable paper bag in the future The use of easy to break, affect the service life. Especially when the kraft paper is indented, the kraft paper is more brittle and the toughness is inferior to the coated paper, and the molding pressure must be properly grasped.

In order to make the paper bag easy to fold, but not to fracturing, you need to pay attention to the following points. (1) The pad should have sufficient thickness; (2) The pad should be pressed out of the groove before molding; (3) The pressure should be appropriate when the mold is molded; (4) The paper is better along the direction of the paper's winding. Folding, molding pressure can be smaller; and perpendicular to the direction of the paper silk, paper is more difficult to fold, can increase the molding pressure in the local.