Method of dyeing yarn

Details Method of dyeing yarn Method of dyeing yarn

1974-08-22

1976-08-24

Bell, Jr., Houston S.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Intermittent length

81551, 68189, 68107, D06B 516, D06B 2102

Patent

active

039764265

ABSTRACT:
Yarn is wound back and forth around a given axis to form a tightly wound package, whereupon dye is fed into the bottom of the package, with the axis thereof vertically arranged, and forced to flow radially outwardly through the bottom turns of the package to take up the dye and color at least the lower end of the package. Alternatively, water will first be similarly fed through the package adjacent the bottom thereof, the wicking action of the yarn carrying the water to a level above the top level to which dye is then fed through the yarn in the manner stated. The wicking action of the water prevents the application of the dye from extending above the top level at which the dye is supplied to the package, thus giving a sharp color cut off, whereas with the unwatered package, the application of the dye is such that the wicking action carries the dye to a higher point, the intensity of the color progressively diminishing upwardly. A sharp cut off is sometimes preferred, for example in the making of multi-color shag rugs. Assuming that the package has been dyed with one color, for example, red, the package is then removed and inverted for the application of a different colored dye, for example, blue. The intermediate portion of the package, not subjected to the dye action, will remain white. When the package is unwound, dried, and spooled ready for a subsequent operation, for example rug making, the yarn will have successive stretches of the three colors referred to, which show up very attractively in a shag rug.

REFERENCES:
patent: 3459012 (1969-08-01), Renaud et al.

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