| 摘要 |
<p>The invention is concerned with the production of filaments or fibres each of which carries a recognisable 'signature' (encoding). These filaments or fibres are produced by taking a film (preferably a plastics film) applying a code directly onto the film across the effective width of the film and then dividing the film substantially at right angles to the code into longitudinal filaments, so that the encoding is then present in each of the filament in exactly the same 'signature' as in the code applied to the film.</p> |
