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|CORRUGATED PLASTIC (POLYPROPYLENE)|
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Corrugated plastic can also be used as an effective material for packaging manufactured from polypropylene. This material has a number of tradenames including corriflute and corriboard. It is lightweight and durable. Furthermore, it can be manufactured in a range of colours. These properties make a suitable material for packaging.
Corrugated cardboard is manufactured from ‘layers’ of card / heavy paper. However, corrugated plastic is manufactured through the extrusion process. In this process molten / pliable polypropylene is drawn through a former, that creates the triangulated section of the corrugated sheet. An advantage corrugated plastic has over the card equivalent, is that it is manufactured in one piece, unlike the corrugated card, that is manufactured in layers that are glued together. Another advantage is that corrugated plastic repels water, unlike card which soaks it up and eventually disintegrates.
|The charity box below is flat packed. It is left ‘flat’ outside a household and the owners form it into a carrying box (with handle). The box is filled with unwanted clothes and left on the doorstep, for the charity to collect later. Hundreds of the flat version can fit in the back of a van, for transport to households.|
|Flat version of collection box. The outline of the box and the handle slots are cut through by the steel die and the waste is removed for recycling. The fold lines are creased by other steel blades, ready for folding.|
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