成型方法：

1。大多数用厚纸板手提纸袋代替压痕线制成的纸张是重量小于250g/m2的铜版纸或牛皮纸。最后的折叠通常是用手完成的。因此，纸袋压痕加工一般不需要使用压痕线来匹配钢线，而是用厚纸板代替使用压痕线，具体操作如下。

(1)将模切机底板清洗干净，粘上双面胶，然后铺上约500g/m2的厚纸板，使其牢固地粘在底板上。

(2)采用较大的模具压力，启动模切机对厚板进行压痕，厚板经反复挤压后会出现深槽，应注意不要使板断裂。

（3）减小成型压力，将纸张放入其中，并将折叠标记压出。这种折痕不仅要有一定的深度，这样在手工折叠时不易跑动，而且不能太深，以致纸张在折断后会折断或折叠，或者因为折痕处的塑性变形过重，导致便携式纸袋在未来使用容易破碎，影响使用寿命。特别是在牛皮纸的压痕过程中，由于牛皮纸的脆性、韧性不如铜版纸，更适合掌握模具压力。

为了使手提纸袋既好又不碎，我们需要注意以下几点。(1)纸张应具有足够的厚度；(2)纸张在压制前应从凹槽中压制出来；(3)纸张应适当压制；(4)纸张应沿纸丝的方向更好地折叠，压力可以较小；并且垂直于纸丝的方向。纸张的长丝，纸张较难折叠，压力可局部增加。

Molding method:

1. Most of the papers made of hand-held paper bags with thick cardboard instead of indentation lines are copperplate or kraft paper with a weight of less than 250g/m2. The final folding is usually done by hand. Therefore, the paper bag indentation processing generally does not need to use indentation line to match the steel line, but with thick cardboard instead of the use of indentation line, the specific operation as follows.

(1) Clean the bottom plate of the die-cutting machine, stick double-sided glue, and then spread a layer of about 500 g/m2 of thick cardboard, so that it is firmly adhered to the bottom plate.

(2) Using a larger die pressure, starting die cutting machine to indentate the thick board, the thick board after repeated repression will appear deep groove, should pay attention not to fracturing the board.

(3) reduce the molding pressure, put the paper into it and press out the fold marks. This kind of crease should not only have a certain depth, so that it is not easy to run when folding by hand, but also can not be too deep, so that the paper is broken or folded after breaking, or because the plastic deformation at the crease is too heavy, resulting in the portable paper bag in the future use of easy to break, affecting the service life. Especially in the indentation process of kraft paper, because kraft paper is brittle, toughness is not as good as copperplate paper, more appropriate to grasp the mold pressure.

In order to make the portable paper bag both good and not fracturing, we need to pay attention to the following points. (1) Paper should be of sufficient thickness; (2) Paper should be pressed out of the groove before pressing; (3) Paper should be properly pressed; (4) Paper should be folded better along the direction of the paper's filaments, and the pressure can be smaller; and perpendicular to the direction of the paper's filaments, the paper is more difficult to fold, and the pressure can be increased locally.

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