| 摘要 |
<p>Cardboard of high tensile strength is intended to provide a solution by means of which, while maintaining the necessary strength requirements, a cardboard can be made available which requires substantially less natural wood or none at all for its production and whose production overall causes substantially less pollution of the environment. This is achieved by at least two layers (2,3) of cellulose, between which a fabric-like structure (4) of natural or synthetic fibres is arranged, the cellulose layers (2,3) and the fabric-like structure (4) being constructed as a composite body formed in the moist state.</p> |
