Process and apparatus for heat treatment of synthetic fiber asse

Details Process and apparatus for heat treatment of synthetic fiber asse Process and apparatus for heat treatment of synthetic fiber asse

1974-09-12

1976-08-03

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 18, 34 41, 34 66, 34242, 219343, 219411, F26B 330

Patent

active

039721272

ABSTRACT:
Process and apparatus by means of which synthetic fiber tow, sliver or yarn is heated in a relaxed state or under tension. The material, while passing through a horizontally elongated oven provided with a series of infrared ray heaters on both the top and bottom walls, is irradiated by far infrared rays having a peak wave length of 3.5 to 7.0 .mu., while an air curtain is formed between the material and each series of infrared ray heaters; the atmosphere surrounding the material in the oven is kept at 80.degree. to 280.degree.C. Rapid treatment is possible without any adverse effects on the material.

REFERENCES:
patent: 1560589 (1925-11-01), Andrews et al.
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patent: 2379653 (1945-07-01), Ridley
patent: 2629162 (1953-02-01), Peck
patent: 3222895 (1965-12-01), Sheppard
patent: 3398466 (1968-08-01), Brown
patent: 3409460 (1968-11-01), Mitchell et al.
patent: 3448526 (1969-06-01), Smith, Jr.
patent: 3639207 (1972-02-01), Genz et al.
patent: 3659551 (1972-05-01), McKinstry

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