Patent ID: 8501278
Filing Date: 2013-08-06
Classification: B05D,D06B

Abstract:
1. A continuous method for treating a plurality of surfaces of individual filaments in a multifilament yarn, the method comprising: (a) treating a multifilament yarn having a plurality of individual filaments by immersing said multifilament yarn into a plurality of treatment solutions and coating a plurality of exposed surface areas of the individual filaments with said plurality of treatment solutions; (b) simultaneously passing said multifilament yarn around at least one roller configured to cause the plurality of individual filaments to translate with respect to one another, rotate with respect to one another, or a combination thereof; and (c) optionally, agitating said multifilament yarn while immersed in at least one of the treatment solutions, the agitation selected from mechanical, electromechanical, acoustic, and electromagnetic agitation; wherein the at least one roller comprises a profile such that for a given transverse section of the roller, a roller surface perimeter has a plurality of points located a plurality of distinct distances from a central axis of the roller; and wherein the at least one roller is configured to continuously vary tension on the plurality of individual filaments during treatment.