Apparatus for dying yarn

Details Apparatus for dying yarn Apparatus for dying yarn

1973-08-10

1976-08-24

Gilreath, Stanley N.

Textiles: fluid treating apparatus

Machines

Liquid flowing

68207, D06B 518

Patent

active

039759300

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 multicolor 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.
As to the apparatus, a tube, usually having perforations annularly arranged at opposite ends will be wound with the yarn to the desired depth. The tube is then placed vertically over an adapter carried by the bottom of the dye pan, and through the bottom of which dye is supplied through a pipe while a body of the dye is maintained in the pan. The interior of the tube is sealed above the lower tube perforations to prevent the dye from rising to the upper perforations. Dye is then pumped upwardly through the adapters into the tube under pressure and is thus forced to travel radially outwardly through the lower perforations and through the yarn to dye the lower end of the package. The dye is then changed to another color and the perforated tube and package are inverted and placed over the adapter so that the then lower end of the package can be dyed a different color, usually but not necessarily leaving the central portion of the package white.

REFERENCES:
patent: 662590 (1900-11-01), Brandts
patent: 1033584 (1912-07-01), Hart
patent: 2167635 (1939-07-01), Little et al.
patent: 2437987 (1948-03-01), Wolfenden
patent: 2487883 (1949-11-01), Seymour et al.
patent: 2509282 (1950-05-01), Woodruff
patent: 3459012 (1969-08-01), Renaud et al.

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