| 摘要 |
<p>A method for the manufacture of shaped objects, preferably in form of plates with profiling, from paper fibres prepared by dry grinding of preferably waste paper to a particle size of approx. 3 mm and which after compression in a mould is hardened by thermal treatment. With the object of providing a durable material with sufficient strength for packing purposes without any addition of additional binding or adhesion agents other than those present in finished paper, such as paper for newspapers, printed matter for advertizing and weekly magazines, the method is characteristic in that the comminuted fibre material is compressed in the mould to a volume which is less than 50 % of the starting volume, following which and under further compression, vapour added under pressure is blown through, which a subsequent cooling by being blown through by air.</p> |
