| 摘要 |
The invention relates to a filter unit (600), a method for manufacturing such a filter unit, and a cartridge (690) comprising such a filter unit. The filter unit (600) is characterized in that it comprises a filter material (601) which is integrated into the aperture of at least one foil (602, 603, 604). In a preferred embodiment, the filter material (601) may be located in the aperture of an intermediate foil (604) which is embedded between a top foil (602) and a bottom foil (603). Such a filter unit (600) can readily be produced in cost-effective processes like roll-to-roll manufacturing technologies. |
| 主权项 |
1. A filter unit (100, 200, . . . 1300) for filtering a fluid, comprising:
a) at least one foil (FT, FB, FI) that is impermeable to the fluid and that comprises at least one aperture (A, A′); b) a filter material (101, 201, . . . 1301) permeable to at least a part of the fluid, said filter material being integrated into said aperture of the foil (FT, FB, FI),wherein the filter material (101, 201, . . . 1301) comprises a subportion for mounting the filter material, andwherein pores in the subportion comprise a filling material to prevent a loss of fluid in the subportion. |
