Dyeing of mixed synthetic polymeric yarns

Abstract

Abstract A composite yarn of two discrete classes of filaments, each class having a different dye affinity or dissimilar inherent apparent coloration is characterized by a degree of filament intermingling of at least 65 percent, a break elongation from 5 percent to 100 percent, the difference in percent break elongation between the discrete classes of filaments being less than 15, and a tenacity from 1.0 to 10 g.p.d. The yarn is produced by separately spinning or cospinning two synthetic fiber-forming polymeric compositions into a multiplicity of discrete filaments, combining the filaments into a composite yarn during or prior to drawing the filaments as an integral yarn, and further processing the yarn to yield the desired properties.

Inventors

• 👤 Cecil Everett Reese

Bibliographic Details