Method of and apparatus for making continuous strand mat

Details Method of and apparatus for making continuous strand mat Method of and apparatus for making continuous strand mat

1974-08-26

1976-01-27

Rimrodt, Louis K.

Textiles: fiber preparation

Working

Fluid or special treatment

19155, 28 1SM, D01D 1102

Patent

active

039343120

ABSTRACT:
The present invention proposes a method of and appratus for making a mat of continuous strands of glass fibers or the like wherein each strand comprises a large number of individual filaments. The strands are deposited in mat form on a collection surface and are flooded with liquid to disperse individual filaments in the overall strand orientation. The flooded filaments are then conveyed to a drainage zone. As they are conveyed, the filaments pass through successive turbulent liquid regions wherein the filaments are locally deflected both counter-current to and con-current with the direction of conveyance, yet the general or overall strand orientation is retained. As a result, the transverse strength of the final mat is materially increased, and the mat has a multitude of fine, controllable interstices as required for some uses, e.g., asphalt-impregnated roofing mat.

REFERENCES:
patent: 3060501 (1962-10-01), Beal
patent: 3120463 (1964-02-01), Russell
patent: 3562771 (1971-02-01), Fridrichsen
patent: 3760458 (1973-09-01), Pitt

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