Coffee filters and methods for making coffee filters

Abstract

To provide a simple-structured, easy-to-use coffee filter.SOLUTION: There is provided a coffee filter in which are formed a first fold line connecting a midpoint of the first side and a midpoint of the fourth side of a rectangular filter body made of a single sheet of paper or nonwoven fabric having a first side, a second side, a third side, and a fourth side; a second fold line connecting the midpoint of the second side and the midpoint of the third side; a third fold line connecting the midpoint of the first side and the midpoint of the second side; a fourth fold line connecting the midpoint of the third side and the midpoint of the fourth side; and a fifth fold line connecting an apex formed by the first side and the fourth side and an apex formed by the second side and the third side; and in which are function, as fine particle housing parts, a first piece bounded by the first side, the third side, the third fold line and the fourth fold line; a second piece bounded by the second side, the fourth side, the third fold line and the fourth fold line; a third piece B bounded by the first fold line, the third fold line and the fourth fold line; and a fourth piece bounded by the second fold line, the third fold line and the fourth fold line.SELECTED DRAWING: Figure 8

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