Filtering paper structure for filter element of filter

The utility model relates to a filter paper structure used for filter element of air cleaner, which is characterized in that: both surfaces of the filter paper are transversely pressed in succession with herringbone folds arrayed along horizontal direction; the herringbone folds are divided into forward directed fold and backward directed fold both horizontally arrayed at intervals; moreover, both surfaces of the filter paper are also vertically pressed in succession with straight line folds arrayed along longitudinal direction; the straight line are divided into left directed fold and right directed fold with the front left fold and back right fold arrayed at intervals along longitudinal and horizontal directions. Compared with existing products, more filter paper can be encased into cleaner of same size, thereby greatly improving internal space utilization rate, increasing pollutant capacity and prolonging service life of air cleaner; meanwhile, overall intensity of filter layer is strengthened with more stable structure and uneasy fatigue of filter paper fiber. 本实用新型是一种用于空气滤清器滤芯的滤纸结构，其结构特征在于，在滤纸的两面，横向连续压制沿水平方向排列的人字形折痕，该人字形折痕分为前向折痕和后向折痕，前向折痕和后向折痕横向间隔排列，另外，在滤纸的两面，纵向也连续压制沿竖直方向排列的直线形折痕，该直线形折痕分为左向折痕和右向折痕，前左折痕和后右折痕在纵向和横向都呈间隔排列。与现在产品相比，在同样大小的滤清器内可以装入更多的滤纸。大大提高滤清器内部空间的利用率，其纳污量和使用寿命也会增加。滤层的整体强度也更好，结构比较稳定，滤纸纤维也不易发生疲劳。