Systems and methods for fabricating tote bags
AssigneeFreedom, Inc.
InventorPaul Fleming
Life of this patent
Estimating the term…
Abstract
In one method, a piece of nonwoven PET or PP fabric is formed into a tote bag using a bag forming device. Seams of the tote bag are ultrasonically welded using an ultrasonic bag welding device. The ultrasonic bag welding device includes at least one sonotrode. In another method, BOPP film is received and a full-color graphic is printed on the BOPP film for each tote bag using a printer. The printed BOPP film is received from the printer and nonwoven PP or PET fabric is received from a roll of nonwoven PP or PET fabric using a laminator. The printed BOPP film is laminated to the nonwoven PP or PET fabric. The printed BOPP film laminated to nonwoven PP or PET fabric is received from the laminator and a finished version of each tote bag is produced using an ultrasonic bag welding device.
Claims20
A method for manufacturing tote bags from nonwoven polyethylene terephthalate (PET) fabric, comprising:
- forming at least one piece of nonwoven PET fabric into at least one tote bag using a bag forming device;
- ultrasonically welding at least one seam of the at least one tote bag using at least one sonotrode operated to produce a frequency greater than or equal to 20 kHz and pressure greater than or equal to 2,500 N using an ultrasonic bag welding device.
A method for manufacturing full-color graphic printed tote bags made from biaxially oriented polypropylene (BOPP) film laminated to spunbond nonwoven polypropylene (PP) or polyethylene terephthalate (PET) fabric in one process in which at least one full-color graphic is printed on the BOPP film before lamination, comprising:
- receiving BOPP film from a roll of BOPP film and printing at least one full-color graphic on the BOPP film for each of a plurality of tote bags using a printer;
- receiving the printed BOPP film from the printer as the printed BOPP film is being printed, receiving nonwoven PP or PET fabric from a roll of nonwoven PP or PET fabric, and laminating the printed BOPP film to the nonwoven PP or PET fabric as the printed BOPP film is received from the printer using a laminator;
- and
- receiving the printed BOPP film laminated to nonwoven PP or PET fabric from the laminator as the printed BOPP film laminated to nonwoven PP or PET fabric is being laminated, and producing a finished version of each of the plurality of tote bags using an ultrasonic bag welding device by
- cutting the printed BOPP film laminated to nonwoven PP or PET fabric for the each tote bag,
- cutting part of the printed BOPP film laminated to nonwoven PP or PET fabric for handles for the each tote bag,
- ultrasonically welding the handles to the each tote bag,
- forming the each tote bag, and
- ultrasonically welding together seams for the each tote bag.
A method for manufacturing full-color graphic printed tote bags made from biaxially oriented polypropylene (BOPP) film laminated to spunbond nonwoven polypropylene (PP) or polyethylene terephthalate (PET) fabric in one process in which at least one full-color graphic is printed on the BOPP film after lamination, comprising:
- receiving BOPP film from a roll of BOPP film, receiving nonwoven PP or PET fabric from a roll of nonwoven PP or PET fabric, and laminating the BOPP film to the nonwoven PP or PET fabric as the BOPP film is received from the roll of BOPP film using a laminator;
- receiving the BOPP film laminated to nonwoven PP or PET fabric from the laminator and printing at least one full-color graphic on the BOPP film laminated to nonwoven PP or PET fabric as the BOPP film is laminated to the nonwoven PP or PET fabric for each of a plurality of tote bags using a printer;
- and
- receiving the printed BOPP film laminated to nonwoven PP or PET fabric from the printer as the printed BOPP film laminated to nonwoven PP or PET fabric is being printed, and producing a finished version of each of the plurality of tote bags using an ultrasonic bag welding device by
- cutting the printed BOPP film laminated to nonwoven PP or PET fabric for the each tote bag,
- cutting part of the printed BOPP film laminated to nonwoven PP or PET fabric for handles for the each tote bag,
- ultrasonically welding the handles to the each tote bag,
- forming the each tote bag, and
- ultrasonically welding together seams for the each tote bag.
Dependencies are inferred from the claim text.