Apparatus for the production of filters by electrostatic fiber spinning
AssigneeBayer Aktiengesellschaft
InventorWalter Simm
Life of this patent
Estimating the term…
Abstract
In a process for the production of fiber filters, spinning solutions are electrostatically sprayed and deposited continuously onto a gas-permeable band-form support. The band-form support travels successively through several spray zones and is always guided from one spray zone into the next below the spray electrodes. Row arrangements of rotating rings dipping into the spinning liquid are used as the spray electrodes, the rings of one row lying in one plane.
Claims9
Apparatus suitable for producing fibre filter material by electrostatic spraying of spinning solution to form fibres and collecting the fibres to form the fibre filter material on a gas permeable support, comprising
- a. a plurality of spaced, side-by-side, rotatably mounted ring electrodes, deposition electrode means on each side of each ring electrode, the deposition electrode means being spaced from the ring electrodes for providing spray zones between the ring electrodes and the deposition electrode means,
- b. guide means for guiding the gas permeable support successively through the spray zones, said guide means including rollers disposed below the ring electrodes for passage of the gas permeable support beneath each ring electrode for transfer of the gas permeable support from one side of the ring electrode to the other side thereof.
Apparatus suitable for producing fibre filter material by electrostatic spraying of spinning solution to form fibres and collecting the fibres to form the fibre filter material on a gas permeable support, comprising
- a. a plurality of spaced, side-by-side, rows of rotatably mounted ring electrodes, the electrodes of each row lying in the same plane, deposition electrode means on each side of each row of ring electrodes, the deposition electrode means being spaced from the ring electrodes for providing spray zones between the ring electrodes and the deposition electrode means,
- b. guide means for guiding the gas permeable support successively through the spray zones,
- c. the ring electrodes of each row are staggered relative to the ring electrodes of the next adjacent row.
Dependencies are inferred from the claim text.