The filter paper folded with the partition is generally shorter than the nominal size of the height of about 30mm ~ 34mm, the fold is mainly by the partition paper and filter paper and paperboard assembly of the tightness of the decision, according to the standard paper arc, Usually 4mm, less than 4mm, there are partitions of the number of intervals on the other assembly of the loose, the result counterproductive, there are fewer partitions on the number of partitions without filter paper folded, mainly by the filter paper Folded high, and the tightness of the filter paper.
