The flow packs are used to wrap a lot of product, since this is one of the cheapest packaging machines. Also in soap industry the flow packs are used for mass soaps, mainly to reduce the final price of the soap bars, because also the packaging material, Polypropylene from reel, is cheaper. A flow pack is an easy machine, mainly composed by a chain with pusher that push the soap in the wrapping area.
The Polypropylene moves in the same direction of the soap and, by means of longitudinal sealing, it is sealed around the soap. The transversal sealing with knives seal and cut the Polypropylene to the two ends of the package. The wrapping film can be transparent or printed.