Process of making air filter fabric

Details Process of making air filter fabric Process of making air filter fabric

1977-01-31

1978-09-05

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

264113, 264122, 264123, 264127, 264130, 264134, 264136, D04H 146, D04H 154

Patent

active

041120370

ABSTRACT:
The disclosure is of a method of making air filter fabrics from non-woven, thermoplastic, synthetic polymeric resin, staple textile fibers and of the fabrics so made. The method comprises providing a non-woven web of the fibers, coating the fibers with a fiber stabilizing agent, pressing the fibers together so as to rupture the film at cross-over points and fusing the fibers together at the sites of the ruptured film. The product filter fabrics are characterized by controlled high permeability, strength, wear resistance, dimensional stability, lint free surfaces and advantageous particle release properties.

REFERENCES:
patent: 2497117 (1950-02-01), Dreyfus
patent: 3895151 (1975-07-01), Matthews et al.
patent: 3947537 (1976-03-01), Buntin et al.

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