Paper, board and wood
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Paper
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-Web like materials made from very fine vegetable fibres -made in different sizes -full range of colours by adding dyes -made with different substances by adding chemicals such as chalk
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Process to make paper
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1. Chips of wood cooked in water and chemicals to create mushy wood pulp 2. Pulp is poured over fine mesh 3. As water drains away cellulose fibres link together 4. Fibres passed through set of rollers to remove excess water
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Board
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-Include cardboard, carton board, mounting board and corrugated board -anything over 200g/m² is classed as board -made from several layers of pulp papers so is thicker heavier and more rigid than paper
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Laminating
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Sticking pieces of sheets or paper to make thick board
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Composite materials
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Paper based board laminated with other materials to create boards with different properties
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Duplex board
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-made from pure wood pulp with bleached liner on one side -250-500 -food packaging
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Foil-lined board
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-made by laminating aluminium foil to cardboard -insulating properties -can keep moisture in/out -fast food lid containers
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Solid white board
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-strong high quality -made from pure bleached wood pulp -good for printing -book covers and packaging
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Timber
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General name for wood materials
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Hardwoods
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Come from deciduous of broad leafed trees -wood is normally hard but some is light and soft
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Softwoods
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Come from coniferous trees -grow faster and are softer to work
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Manufactured boards
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Timber sheets made by glueing wood layers(veneer) together
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Grain
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The growth ring marks visible on the surface
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Mahogany
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Hard wood -reddish brown -easy to work with -indoor furniture/veneers
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Beach
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-hard wood -straight grained with fine texture -light colour -hard but easy to work with -furniture/toys
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Scots pine
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-straight grained -light in colour -strong but easy to work with -DIY work/construction
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MDF
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Manufactured board -smooth even surface -easily machined/painted -often veneered/painted -furniture and interior panelling
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Hard board
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Manufactured board -cheap particle board - can have a laminated plastic surface -furniture backs/door panels
