Method for the production of a filter element

摘要

A process for production of a filter element includes forming a cylinder by bending a flexible filter mat having a series of folds adjacent to one another at least in individual end areas on longitudinal end edges thereof such that the end areas overlap with end edges being aligned along a length of the cylinder, joining the end areas on an exterior of the cylinder along a junction seam, and reversing the cylinder inside out such that an annular filter element is formed with the junction seam on an interior thereof.