Lunsford, Leslie E.; Simmons, Clyde A.;

Method of dyeing yarn

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.

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We claim:

1. The method of packaging and dyeing yarn which comprises forming a yarn package by winding the yarn back and forth spirally around a vertical axis, and forcing dye radially outwardly solely through the lower portion of the package to dye a limited portion of the lower end of the package.

2. The method defined in claim 1 wherein clear water is forced through the lower end portion of the package at least to a level corresponding to the level at which the dye is forced radially outwardly through the package prior to such dyeing operation.

3. The method of packaging and dyeing yarn which comprises supporting solely interiorly thereof a yarn package wound back and forth from end to end of the package, positioning the package vertically, and forcing dye radially outwardly solely through the lower end portion of said package to dye a limited portion of the lower end of the package.

4. The method defined in claim 3 wherein clear water is forced through said lower end portion of the package prior to the forcing of the dye therethrough to utilize the wicking action of the yarn in the package to prevent the absorption of the dye by the yarn except in that portion of the length of the package which it is desired to dye, so that when the yarn is unwound, there will be a sharp cut off of color at the ends of the portions of the yarn which have been dyed.

5. The method defined in claim 3 followed by the additional steps of inverting the yarn package, and forcing dye radially outwardly through a different section of the length of the package from the section of the package previously dyed.

6. The method defined in claim 5 wherein the dyeing of said different section of the package is preceded by the forcing of water radially outwardly through said different section of the package to utilize the wicking action of the yarn to limit the length of said different section of the package which will absorb dye.

7. The method defined in claim 3 wherein said lower end portion of said package is immersed in a body of the dye during the forcing of the dye through said lower end portion of said package.

8. The method defined in claim 4 wherein said lower end portion of said package is immersed in a body of the dye during the forcing of the dye through said lower end portion of said package.

9. The method defined in claim 3 wherein said lower end portion of said package is immersed in a body of the dye during the forcing of the dye through the lower end portion of said package, and wherein clear water is forced through said lower end portion of the package prior to the forcing of the dye therethrough.