MEMBRANE BAGS WITH SEAMLESS MEMBRANE SUBSTANCE, USES THEREOF, FILTRATION UNITS THEREWITH AND MANUFACTURING PROCESSES.

摘要

A membrane bag process for producing at least one seamless membrane bag, the process comprising the steps of: (i) providing a spacer fabric having a uniform structure, the spacer spaced apart and tied together at a predefined distance by monofilament thread (103), (ii) transporting the fabric adjacent to at least one impregnation unit (106); (iii) impregnating the first (101) and second parts (101') of the spacer fabric and the tying points of the monofilament thread to the first (101) and second parts (101') of the spacer fabric with membrane dope (107) with the at least one impregnation unit (106) such that in predefined continuous regions not only the first and second part of the fabric are impregnated but also the space therebetween thereby producing at least one seamless membrane bag precursor, (iv) forming the at least one membrane bag from the at least one membrane bag precursor, each of the at least one membrane bags comprising a volume (102) completely enclosed with seamless membrane substance.