Paper Paper is a thin, flat material produced by the compression of fibres. The fibres used are usually natural and based upon cellulose. The most common material is tree wood, but other materials including cotton? and hemp? are used. |
Paper is a thin, flat material produced by the compression of fibres. The fibres used are usually natural and based upon cellulose. The most common material is tree wood, but other materials including cotton? and hemp? are used. |