Method for space dyeing yarn
AssigneeInterdye Technology Corporation
InventorsJames G. T. Paterson, Charles W. Watkins, Grover G. Duckworth, Jr.
Life of this patent
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Abstract
A method for space dyeing yarn wherein a rapidly advancing yarn is intermittently deflected into and out of a nip of a pair of rotating dye applicator rollers, such that those portions of the yarn which pass through the nip are subjected to a rapidly applied and substantial compressive force in the nature of a hammer-like impact in the nip, to cause the dye carried by the rollers to deeply penetrate into the yarn. In the illustrated embodiment, the yarn is advanced past a plurality of such pairs of dye applicator rollers, and an external pattern control acts to deflect the yarn into and out of the various nips in accordance with a predetermined program.
Claims16
A method of applying dye to spaced apart portions of a yarn to provide a patterned color effect and characterized by high production and substantially complete penetration of the dye into the yarn, and comprising the steps of
- advancing a yarn along a path of travel which is laterally spaced from the nip of a pair of operatively rotating applicator rollers, while
- supplying a dye to the peripheral surface of at least one of the applicator rollers, and while
- intermittently deflecting the advancing yarn into and out of the nip of the applicator rollers, such that those portions of the yarn which pass through the nip are subjected to a rapidly applied compressive force in the nip to cause the dye carried by the rollers to deeply penetrate into the yarn.
A method of space dyeing yarn to provide a patterned color effect and characterized by high production and substantially complete penetration of the dye into the yarn, and comprising the steps of
- operatively rotating a pair of closely adjacent, dye applicator rollers while supplying a dye to the surface of at least one of the rollers and while resiliently biasing the rollers toward each other to permit the rollers to slightly separate against the resistance of the resilient biasing force,
- advancing a yarn along a path of travel which is laterally spaced from the nip of the rollers, and with the speed and direction of the advancing yarn closely corresponding to the peripheral speed and direction through the nip of the rollers, and while
- intermittently deflecting the advancing yarn into and out of the nip of the rollers in a predetermined sequence, such that those portions of the yarn which pass through the nip are subjected to a rapidly applied and substantial compressive force in the nip to cause the dye carried by the rollers to deeply penetrate into the yarn.
A method of applying dyes of differing colors to spaced apart portions of a yarn to provide a patterned multi-color effect, and characterized by high production and substantially complete penetration of the dyes into the yarn, and comprising the steps of
- advancing a yarn along a path of travel which is laterally spaced from the nip of each of a plurality of pairs of closely adjacent, operatively rotating dye applicator rollers, while
- supplying a dye to the peripheral surface of at least one of each of the pairs of rollers, with the color of the dye supplied to each of the pairs being different from the color supplied to the other pairs, and while
- intermittently deflecting the advancing yarn into and out of the nips of the pairs of rollers in accordance with a predetermined program and such that those portions of the yarn which are deflected into any of the nips are subjected to a rapidly applied and substantial compressive force in the nip to cause the associated dye to deeply penetrate into the yarn.
Dependencies are inferred from the claim text.