Method for producing a pleatable filter material from a nonwoven fabric

摘要

A 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 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 calender rolls and cooled simultaneously.