Method and apparatus for manufacturing draw tape bags

Details Method and apparatus for manufacturing draw tape bags Method and apparatus for manufacturing draw tape bags

B - Operations, Transporting

31

B

93/13

B31B 1/64 (2006.01) B31B 19/90 (2006.01)

Patent

CA 1230252

METHOD AND APPARATUS FOR MANUFACTURING DRAW TAPE BAGS ABSTRACT OF THE DISCLOSURE: A method of forming plastic film bag bodies with draw strips comprising the steps of providing a continuous length of plastic film once folded to provide superposed panels and two free longitudinal edges opposite a fold edge, folding the two longitudinal free edges inwardly between the adjoining panels to provide a pair of longitudinal inwardly turned hems of double thickness, inserting a continuous material draw strip into each hem, joining together longitudinally the double layer thicknesses of each hem to form a channel along a longitudinal edge of each panel containing one of the continuous strips and transversely severing the material and strips at regular intervals to separate individual bag body lengths from the continuous web of material. Holes are punched along the folded hems of the bag before the draw tapes are inserted so as to allow access to the inserted tapes in the manufactured bag.

490263

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