Paper machine dryer fabrics containing hollow monofilaments

Details Paper machine dryer fabrics containing hollow monofilaments Paper machine dryer fabrics containing hollow monofilaments

D - Textiles, Paper

21

F

D21F 5/00 (2006.01) D03D 1/00 (2006.01) D21F 1/00 (2006.01)

Patent

CA 2130756

2130756 9317180 PCTABS00025 A paper machine dryer fabric includes hollow thermoplastic monofilaments to replace at least a portion of the wefts, also known as cross-machine direction strands. Fabrics including such monofilaments may be either a woven fabric, or a spiral fabric. The deformable nature of the hollow monofilaments decreases the air permeability of the fabric, and in the case of spiral fabrics, improves monofilament retention within the helical coils between the hinge yarns. The hollow monofilaments have a solidity in the range of from about 50 % to about 80 %. A suitable thermoplastic is polyethylene terephthalate. Hollow monofilaments do not have the disadvantages of other deformable yarns, such as spun yarns, multifilament yarns or plied monofilament yarns, each of which tend to hold and entrap within their structure both water and foreign matter.

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