HOW PLASTIC ‘Poly’ BAGS ARE MADE
This is done on a polybag converting machine.
Bags can be made in all shapes and sizes, available with special added attributes and options – for example:
- Vent holes, Perforations
- Die cut handles
- Side or Bottom Seal, Side or Bottom Gusset
- Lip and Tape
- Press Seal/ Ziplock Seals
- Reseal or Permanent tape closure
- Trap seal headers
- Hanging holes (round/euro hang sell/tear notch)
- High Slip or Low Slip
- Water-tight seals
- Loose bags in cartons, Bags on Roll (BOR)
- Special application film e.g. UV resistant, antistatic, corrosion inhibitor
The film roll is loaded onto the machine and fed through rollers. Machine settings are made to match the bag specs including length, width, any
special attributes needed for the job.
The film moves along the machine bed guided by belts and rollers.
As film passes through the heated sealing bars, it is cut and sealed simultaneously.
The sealed bags pass through a static eliminator and flattening rollers, before stacking onto an indexed batching table.
Loose bags are neatly packed (flat or folded) into labelled cardboard cartons. Batch numbers are recorded on cartons and detailed job sheets kept for product traceability.
BOR – BAGS ON A ROLL
Bags on a roll are made in a similar way but the sealed film is not cut into separate bags. Instead it is perforated after the seal at the required length and automatically wound onto a cardboard core.
Finished rolls are wrapped in plastic film and labelled. Our disposable car seat covers are an example of bags that are supplied on a roll for use as needed.
Disposable Car Seat Covers – available as ‘Bags on a Roll