Apparatus for the treatment of webs of material

Details Apparatus for the treatment of webs of material Apparatus for the treatment of webs of material

1977-04-07

1979-01-23

Schwadron, Martin P.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34115, 34122, 34156, F26B 1308, F26B 1312, F26B 1320

Patent

active

041353102

ABSTRACT:
An apparatus for the treatment of material in the form of webs, usually textile webs, with a heated treating fluid, e.g. hot air for the drying of the material, comprises a drum having a perforated periphery adapted to receive the web from a so-called float-dryer disposed above the drum. The treating fluid is forced through the perforations of the drum and contacts the web lying therealong. The float-dryer has a surface inclined downwardly toward the surface of the drum in a direction opposite the direction of rotation thereof and in a direction opposite the direction of rotation thereof and is provided with means forming a fluid cushion between the web and the float-dryer surface. The arrangement prevents the application of tensile stress to any significant extent to the web during the predrying and subsequent treatment thereof on the surface of the drum at the transition region between the predryer and the drum surface or elsewhere along the treating path.

REFERENCES:
patent: 3346247 (1967-10-01), Talalay et al.

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