Method for imparting coloration to a knit/deknit textile yarn
OwnerEdward J. Dombrowskiinventor
Life of this patent
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Abstract
A roll of knit tubing, which has been knit into a tubular shaped prefabric in the first stage of a knit/deknit process, is presented successively to one or more dyeing stations while in a rolled or coiled package. Dyestuff is applied to the roll at selected positions on at least one side surface thereof in such amounts as to form regions of dye which spread in all directions through a plurality of convolute layers. The dye and stitch are then simultaneously heat set in an autoclave and the tube deknitted according to conventional practices to provide a textured yarn having random color variations therein.
Claims7
An improved method of imparting space dyed color variations to a knit/deknit textile yarn of the type which is knit into a tubular prefabric, the tube rolled into a coil-like package having substantially circular side surfaces, heat set, and subsequently deknit to impart a desired textured characteristic to the yarn, comprising the steps of:
- a. positioning said coil-like package of tubular prefabric to at least one dyeing station while rolled into said package;
- b. applying dye at said dyeing station to selected areas on at least one of the circular side surfaces of said package in such amounts as to seep of its own volition throughout a plurality of adjacent convolute layers;
- c. discontinuously with the dyeing, subjecting said package to an autoclave while still in the rolled up configuration to simultaneously set the dye and the knit stitch.
A method of space dyeing a textured yarn comprising the steps of:
- a. knitting synthetic, heat settable yarn on a circular knitting machine to form a tubular prefabric;
- b. rolling up the knit tube into a coil-like package having substantially circular side surfaces;
- c. discontinuously with the knitting introducing dye to the edges of said tubular fabric at a plurality of selected points on at least one circular side surface of said coil-like package in such amounts that the dye will seep of its own volition throughout a plurality of adjacent convolute layers;
- d. applying steam heat to said package to simultaneously set the dye and the stitch;
- and
- e. prior to further treatment other than dyeing unraveling the knit tube to form a textured yarn having completely random color variations along the length thereof.
Dependencies are inferred from the claim text.