| 摘要 |
<p>A STRIP MATERIAL (1) COMPRISING A SUPPORT (2) INCLUDES ON AT LEAST ONE SIDE A PLASTICS LAYER (5, 6) WHICH IS PLANE ON THE OUTSIDE AND WHICH IS TRAVERSED BY THROUGHFLOW PASSAGES. IN ACCORDANCE WITH THE INVENTION, THE OUTSIDE (7, 8) OF THE PLASTICS LAYER (5, 6) INCLUDES EMBOSSMENTS (9) PROVIDED ALSO BETWEEN THE ORIFICES OF THE THROUGHFLOW PASSAGES WHICH AT LEAST IN PART INTER-COMMUNICATE AND COMMUNICATE WITH THE THROUGHFLOW PASSAGES. IN THE PRODUCTION OF THE STRIP MATERIAL, DURING OR AFTER THE PRODUCTION OF THE PLASTICS LAYER (5, 6), SOLUBLE PARTICLES ARE APPLIED ONTO THE OUTSIDE (7, 8) OF THE PLASTICS LAYER (5, 6) AND ARE THEN PRESSED INTO THE PLASTICS LAYER (5, 6), THE SOLUBLE PARTICLES BEING LEACHABLE BY A SOLVENT OF A TYPE IN RESPECT OF WHICH THE REMAINDER OF THE STRIP MATERIAL (1) IS STABLE WHEREAFTER THESE SOLUBLE PARTICLES ARE DISSOLVED OUT.FIGURE</p> |
