| 摘要 |
1. Filter, especially coffee filter, with a holding frame which can be attached to the edge (11) of a cup or suchlike preparation vessel, and with a filter bag (10) fastened inside the holding frame and made of filter material, especially filter paper, the filter bag (10) being fastened to the holding frame along the entire inner peripheral edge of the latter, so that the total free cross-section of the holding frame is filled by the filter bag (10) characterized in that the holding frame is of triangular contour, and in that the prismatic holding frame holding the filter bag (10) is formed by a rectangular paperboard or cardboard blank (25) which can be unfolded into a triangle. |
