Process for treatment of yarn within a steaming chamber
AssigneeEtablissements Superba S.A.
InventorAlfred M. Gloeckler
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Abstract
The process comprises the steps of depositing the yarn onto a conveyor belt in the form of a cohesive flexible continuous hollow cylindrical winding of yarns, said cylindrical winding being supported on said conveyor belt at least along a generatrix of said cylinder, said cylindrical winding being transported through a hood-shaped steaming chamber while following a conveying pass successively ascending, horizontal and descending, the treatment fluid being maintained air-free and pure within said chamber owing to relative specific weight effect.
Claims9
A process for continuous heat treatment of yarns comprising the steps of forming a continuous flexible hollow coherent cylindrical winding formed by successive annular layers of yarn turns, of depositing said cylindrical winding on a conveyor belt with said cylindrical winding being supported at least along a generatrix thereof onto said conveyor belt, and of making said conveyor belt transport said cylindrical yarn winding within a stationary hoodshaped treatment chamber having a closed top portion and an at least partially open lower portion, treatment fluid being introduced within said treatment chamber and maintained therein in a very pure state through relative density effect.
A process for continuous heat treatment of yarns, comprising:
- (a) forming a continuous, flexible hollow, cylindrical winding constituted by an axially extending series of successive annular layers of helical turns of yarn, each such layer being constituted by an angularly distributed plurality of such helical turns;
- (b) depositing said cylindrical winding on an advancing conveyor belt so that the longitudinal axis of the cylindrical winding substantially parallels the advance of the conveyor belt and the cylindrical winding is supported on at least a generatrix thereof on said conveyor belt;
- (c) establishing and maintaining a bell-like vapor-phase treatment chamber for lighter-than-air vaporous treating fluid, by introducing sufficient vaporous treating fluid into the treatment chamber to have an excess thereof venting therefrom below where said cylindrical winding is to be treated therein;
- (d) advancing said conveyor belt, with said cylindrical winding supported thereon into, through and out of said treatment chamber, always at such a level as to ensure that the cylindrical winding, while in said treatment chamber, is being bathed in vaporous treating fluid that is substantially uncontaminated by air.
Dependencies are inferred from the claim text.