Bags with marks and methods of making same
AssigneeForesight USA, Inc.
InventorFung Steven Wong
Life of this patent
Estimating the term…
Abstract
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.
Claims20
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.
A roll of bags, comprising a plurality of bags that are separated by punching lines, each of the bags is sealed with a sealing line, wherein at least one bag of the roll of bags has a counting mark that counts its relative position of the at least one bag in the roll of bags.
A system for manufacturing a roll of bags, comprising:
- a workstation having a feed end and a produce end, the workstation comprising:
- a moving mechanism configured to move a layflat tubing from the feed end toward the produce end, wherein the layflat tubing comprises a length direction and a width direction;
- a sealing mechanism configured to seal the layflat tubing to form a plurality of sealing lines, each of the sealing lines along the width direction;
- a punching mechanism configured to punch the layflat tubing to form a plurality of punching lines, each of the punching lines along the width direction;
- a cutting mechanism configured to cut the layflat tubing along the width direction to form a plurality of connected bags;
- and
- a winding mechanism configured to wind the connected bags into the roll of bags;
- and
- a coding machine coupled to the workstation, and configured to spraying at least one counting mark on the layflat tubing,
- 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.
The system of claim 19, further comprising a layflat tubing making machine configured to make the layflat tubing, and the workstation, the coding machine and the layflat tubing making machine are controlled by the controller to automatically making the roll of bags from plastic material fed to the layflat tubing machine.
Dependencies are inferred from the claim text.