| 摘要 |
The invention relates to a fixed injector (3) - (8) - (9) conveying water under pressure for the purpose of working a web (1) of nonwoven or the like. The microperforated plate (5) makes it possible for the injector (3) - (8) - (9) to convey needles of water (7) onto the web (1). A perforated cylinder (14) which does not touch the web (gap 17) can be interposed. The invention is used for the microperforation of dots or slits in various materials, including plastic, in the form of flexible webs. <IMAGE>
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