BAGS WITH MARKS AND METHODS OF MAKING SAME

摘要

A method of manufacturing a roll of bags includes: moving a layflat tubing from a feed end toward a produce end of a workstation; sealing the layflat tubing to form sealing lines along a width direction of the layflat tubing; punching the layflat tubing to form punching lines along the width direction; spraying, by a coding machine coupled to the workstation, at least one counting mark on the layflat tubing; cutting by the workstation, the layflat tubing along the width direction to form connected bags; and winding the connected bags into the roll of bags. The connected bags are separated by the punching lines, each bag has one of the sealing lines, and at least one bag has the at least one sprayed counting mark that counts its relative position in the roll of bags.

主权项

1. A method of manufacturing a roll of bags, comprising:
moving a layflat tubing from a feed end of a workstation toward a produce end of the workstation by a moving mechanism of the workstation, wherein the layflat tubing has a length direction and a width direction; sealing the layflat tubing by a sealing mechanism of the workstation, so as to form a plurality of sealing lines each along the width direction; punching the layflat tubing by a punching mechanism of the workstation, so as to form a plurality of punching lines each along the width direction; spraying, by a coding machine coupled to the workstation, at least one counting mark at desired positions on the layflat tubing, wherein each counting mark is located between two adjacent punching lines on the layflat tubing; cutting, by a cutting mechanism of the workstation, the layflat tubing along the width direction to form a plurality of connected bags; and winding the connected bags into the roll of bags, wherein the connected bags in the roll of bags are separated by the punching lines, each of the connected bags comprises one of the sealing lines, and at least one bag of the roll of bags has one of the at least one sprayed counting mark that counts its relative position of the at least one bag in the roll of bags.