Converting

Our Converting capabilities are across most forms of polyethylene bags and a range of pouch formats. Polyethylene conversion includes wicket bread & produce bags to large bags and sacks.

Pouch conversion includes 3-side seal, stand up and quad style, all formats with/without zippers.

The Process

The conversion department is just that - it takes the flexible film and converts the film into bags or pouches. The film used can be plain or printed, it can be single substrate or a complex laminate, to suit the end application.

With converting of the 'reel' stock into bags there are several formats as depicted below and these are side weld, bottom seal or pouch type seals:

Side weld - Sideweld bags are produced by sealing and cutting the sides of the bag using a wedge shaped sealing bar. A common example of sideweld bags are bread bags. These can be supplied as loose bags or on wickets.

Bottom seal - Bottom seal bags are formed when a tubular film is cut and sealed, with the sealed end being the bottom of the bags only leaving the unsealed top open for filling and subsequent sealing by the packer.

Pouch seal - The pouch sealing process is where the converting machine can apply flat seals to the sides, the top and or the bottom of the bag. It can also include feeding in special products which allow for zipper opening and closing, for example. Please refer to our section on pouches.