A liquid packaging board might be up to five plies and is formed on a multi-ply paper machine with online coating. The most common is to use three plies with a basis weight of about 300 g/m2. The base or middle ply is normally made of pulp from bleached or unbleached chemical pulp, CTMP or broke (waste paper from a paper machine). CTMP gives more bulk and stiffness. The top ply (inside) is made of bleached chemical pulp. The barrier coating depend of the application and might be applied on both sides. The back side of the board is the printing side and might have an extra ply made from chemical pulp of quality that is suitable for the printing applications. Liquid packages are normally heat sealed.
Cartons filled with short shelf life dairy products use board that are barrier coated on both sides with one layer of low density polyethylene. For long shelf life products it is common to use aluminium foil as barrier coating together with polyethylene. Commonly the plastic coating on the top side is 12 - 20 g/m2 and on the reverse side 15 - 60 g/m2.
Liquid packaging board are used for two package types: brick and gable top cartons.
Read more about this topic: Liquid Packaging Board
Other articles related to "manufacture":
... The manufacture de Nast was a prominent hard-paste porcelain factory founded in Paris in 1783 by Jean Népomucène Hermann Nast, an Austrian born French citizen ... The manufacture de Nast was also in the forefront of developing new highly pigmented color glazes ... Nast's two sons continued management of the manufacture de Nast until its sale in 1835 ...
... production unit in Malmö is devoted primarily to the specialized manufacture of regenerative products ... Swedish company Biora, which specialized in the manufacture of the protein-based products for tissue regeneration ... The manufacture of Emdogain, an easy to apply protein based gel for use in periodontal disease, is focused in Malmö ...
... are tiny glass flakes which are formed during the manufacture of glass vials ... and if the vial is not reheated or cleaned after manufacture, these spicules can drift off into the mixture subsequently placed in the vial ... This is a serious problem in the manufacture of soft contact lenses or pharmaceutical products ...
... creation of CNC Machining instructions for the product’s parts as well as tools to manufacture those parts, using integrated or separate CAM computer-aided manufacturing software ...
Famous quotes containing the word manufacture:
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