Soil-repellent monofilament for paper machine wire-cloths, produ

Details Soil-repellent monofilament for paper machine wire-cloths, produ Soil-repellent monofilament for paper machine wire-cloths, produ

1995-08-10

1996-05-07

Edwards, Newton O.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428395, 525165, 525177, 139425A, 162903, D02G 300

Patent

active

055144721

ABSTRACT:
The dirt-repellent monofilament with a toughness of at least 36 cN/tex and an extension of under 44% has a soiling index A1>2 after five soiling and cleaning cycles. To manufacture the dirt-repellent monofilaments, a copolymer with a melting point of 255.degree. to 275.degree. C. and consisting of alkenes and perfluoroalkenes is added to a polymer melt of polythylene terephthalate before extrusion. The dirt-repellent monofilament is advantageously used in the manufacture of cleaning filters for the dry section of a paper machine, i.e. paper machine fabric filters. It may also be used to produce fabrics for general use as technical fabrics which have to be cleaned in difficult conditions.

REFERENCES:
patent: 3562200 (1971-02-01), Jones
patent: 3723373 (1973-03-01), Lucas
patent: 4002581 (1977-01-01), Dolce
patent: 4822454 (1989-04-01), Meirowitz et al.
patent: 5283110 (1994-02-01), Gardner et al.

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