How is a Square Bottom Paper Bag Made

A paper bag is a bag made of paper, usually kraft paper. Paper bags are commonly used as shopping bags, packaging. Paper bags can be made from recycled paper, with some local laws requiring bags to have a minimum percentage of post-consumer recycled content. 

How is a square bottom paper bag made? The requirements are paper bag machine, raw materials (kraft paper and glue). The paper bag machine uses paper roll in blank or printed as raw material. It consists of automatic centre forward glue, printing tracking, fixed length and cutting, bottom indentation, folding bottom, bottom glue, Bag bottom forming then finished.

Standard brown paper bags are made from kraft paper. Tote-style paper bags, such as those often used by department stores or as gift bags, can be made from any kind of paper, and come in any color.

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