| 摘要 |
PURPOSE: A method for producing a pleatable filter material from a nonwoven fabric having spacers for pleated folds made of the filter material itself is provided. CONSTITUTION: The method for producing a pleated filter material from a nonwoven fabric having spacers for the pleated folds formed from the filter material itself, a formed fabric made of stretched synthetic fibers and thermoplastic and/or thermally cross-linked binding agent being heated in an oven(2) to a temperature lying at least in the softening temperature range and/or the cross-linking temperature range of the binding agent, and subsequently, the formed fabric being formed between profiled calendar rolls(3) and cooled simultaneously. |
