Form fill packaging

Oriented polypropylene films are widely used 111 the packaging of snack foods, candy, and other products. The most common method of packaging using these films is the form and fill process in which the package is formed filled with product, and sealed in a continuous process. 

Another important packaging development area is plastic. Various plastics have been and continue to be used high- and low-density polyethylene (HDPE, LDPE), polyvinyl chloride (PVC), polystyrene (PS) and various barrier plastics. These can be formed into bottles of conventional shape or fed into machines producing form-fill-seal packages, typically cups. 

Many non-carbonated RTD products that are not pure fruit juices or nectars are packed in either pre-fonned or form-fill-seal plastic packages, although an... 

Canned and bottled citrus juices are examples of products that are packed aseptically, and these processes have been used in the industry for many years. One of the newer processes for aseptic packaging employs a paperboard package that is sterilized with hydrogen peroxide prior to the form, fill, and seal operation. This process, developed by Tetra Pak Ab of Lund, Sweden, is in use in many parts of the world, but it has not yet been approved by the U.S. Food and Drug Administration for domestic use. 

Sample 3 - used for packaging rice and cereals in vertical form fill and seal packs... 

The Dow Chemical Company first entered the loose-fill packaging market in 1962 with a material that resembled spaghetti strands. Eventually the shape evolved to the S shape that characterized the product from the early 1970s to the present. Other competitors in the polystyrene foam loose-fill market include Flo-Pak, manufactured by Free-Flow Packaging, Inter-Pac, manufactured by Inter-Pac, WingPac and C-Pac, manufactured by Rapac, and Alta-Pak, manufactured by Storopack. In 1993, Dow sold the trademark rights to the S shape and Pelaspan-Pac to Storopack. The information about foamed polystyrene loose-fill that follows is an overview specific to materials that are formed in hard resin strands, cut to length, boxed and shipped to and later expanded for customer use at a convertor (expander) location. 

Flexible medical packaging is well suited to SBC for use in form, fill and seal machines. SBC have excellent formability, which allows for nearly perfect replication and filling of molds. To make a peelable seal, the SBC would need to be co-extruded with a lower melting substrate to act as the adhesive layer. The SBC structure provides good web formability and good toughness. It then has the versatility to be sterilized by 7-radiation, ethylene oxide or electron beam. 

Blister packaging equipment can extend from a fairly basic piece of machinery which covers a form fill seal, and removal from the web operation to a highly sophisticated unit covering a far more complex range of operations. Invariably complexity must be associated with higher prices, more highly trained operatives, less flexibility, etc. Plastic blister materials cannot offer full climatic protection, hence additional protection may have to be achieved by some form of overwrapping system. 

The filling and packaging operations may take place on one piece of machinery or be split across several machines, namely form fill and seal—e.g. blister packs where the product is filled, closed and identified on one machine—whereas a bottle of liquid... 

Surface slip (friction) characteristics may be important in certain packaging line operations, especially form fill seal equipment, and in stacking. Anti-set-off spray during printing can affect slip, where printed surfaces usually become gritty to the touch, due to the excessive application of anti-set-off (to prevent print transfer to the underside of adjacent surfaces). 

Polystyrene. While polystyrene was probably first formed by German apothecary Eduard Simon in 1839, it was almost 100 years later, in 1930, that the German chemical company I. G. Fraben placed polystyrene on the market. Polystyrene-molded parts became common place by 1935. Apphcations of polyst5Tene include loose-fill packaging peanuts, shape-molded packaging, and disposable utensils. 

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