Technical terms explained simply

Bag confectioning at ALLFO includes the packaging service of vacuum bags on state-of-the-art machines installed in the company’s new production facilities in Waltenhofen. Quality, sustainability and delivery reliability within short production times are the hallmarks of this process. We produce a wide range of vacuum bags, differing in shape, thickness, size, material and colour. Any desired batch size is quickly and reliably implemented. The bags are counted, packed loosely in cartons or once again sub-packed. We constantly maintain a large number of the most common sizes pallet by pallet in stock, so that you can benefit from short delivery times. The speed of our bag confectioning also allows niche products to profit from rapid shipment.

Barrier films consist of several layers, creating a barrier layer which acts as a protective shield against oxygen, germs, spores or contaminants. They are mostly in demand in the food industry, but sensitive products from medical technology or other industrial sectors are packaged with them as well. Principal components of barrier films are generally polyamide and polyethylene. Other materials such as EVOH, PET, PP or Surlyn may also be used for the production of barrier films. The different layers are obtained by extrusion, during which several layers are applied on top of each other. They are either cast or blown. The material mix to be used basically depends on the intended purpose of the packaging. Barrier films offer both excellent machine compatibility and outstanding sealing properties. ALLFO also employs these composite films in the manufacture of its vacuum bags.

Numerous different packaging materials are produced from blown films. Starting substance is thermoplastic material in various formulas. ALLVAC manufactures blown films offering different barrier properties. Primary components are polyamide and polyethylene. Plastic granules are first heated on several special blown film extruders and pressed through a blow head with an annular gap, resulting in a vertical film bubble and subsequently a 10 to 20 metre tall film tube. Afterwards, the tubular film, virtually floating in the air, is finally cooled down and folded. In the next production step it is wound up by means of corresponding tools. ALLVAC manufactures thermoforming film as well as films for flow pack applications that wrap around the product like a second skin, for use especially in food processing.