Core spun filtration roving yarns

Details Core spun filtration roving yarns Core spun filtration roving yarns

D - Textiles, Paper

02

G

118/36

D02G 3/00 (2006.01) B01D 29/11 (2006.01) B01D 39/16 (2006.01) B01D 39/20 (2006.01) D02G 3/36 (2006.01) D02G 3/44 (2006.01)

Patent

CA 1119486

CORE SPUN FILTRATION ROVING YARNS Abstract A low twist, high bulk filtration roving (4,15) is prepared by wrapping a sliver (6, 17) comprised of indi- vidual fibers, around a core (5, 16) in the conventional manner. Exemplary of the bulk fibers (6, 17) which may he employed are naturally occurring fibers such as jute, cotton, animal hair; synthetic polymer fibers, such as acrylic, nylon, polyester, olefin, aramid, TEFLONTM; man- made organic fibers deriving from natural sources such as rayon or cellulose acetate; and inorganic fibers such as metal, glass, graphite; or a blend of two or more of these fibers. Examples of the core (5, 12, 16), which can be continuous filaments, monofilaments or spun yarn, are one or more strands of the same composition as the fibers, or a combination thereof, twisted paper which can be plain, impregnated or metallized, and metal wire. Where the material is capable of being cast in film form, slit film may be employed as the strand(s). The compos- ite roving (19) is wound upon a rigid perforated tubular center (22) to form a filter cartridge (18).

333887

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