HOW PAPER AND CARD ARE MANUFACTURED
V. Ryan © 2004
Most materials used for packaging are paper /card
based. Card and paper are made from wood pulp and waste paper. When
paper is examined through a microscope the fibres that form the material
can be seen. The fibres are made from cellulose which is extracted from
the wood pulp and recycled waste paper. |
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STAGES OF PAPER MANUFACTURE |
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Paper based materials such as cardboard are thick because they are made up of several layers of pulp. If greater even thickness is needed this is achieved by gluing layers of card together in a process called laminating. |
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QUESTIONS: 1. Describe as a series of stages, the manufacture of paper. 2. How is card manufactured? |
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