| 摘要 |
A method of producing an apertured sheet material is proposed wherein a layer (12) of photopolymeric resin material (10) is applied to a moving band (11), an apertured mask (13) which moves in synchronism with the support surface is positioned to overlie the resin material, and the resin material is irradiated through the mask (13) to effect an at least partial cure thereof in regions in register with the apertures (14) in the mask (13). After radiation of the resin material layer (12), uncured such material is removed by pressure fluid jets (16) and final curing of the resin material is effected. Apparatus for practising the method is also disclosed. The apertured sheet material is of use in producing fabrics for, inter alia, the papermaking industry. |
