Patent ID: 6669993
Filing Date: 2003-12-30
Classification: D01D

Abstract:
A method for applying a liquid finish to one or more yarns running at speeds greater than about 3000 m/min and having entrained air boundary layers in motion with each of said yarns comprising the steps of:a) passing the yarns into a first portion of a split-body finish applicator device in essentially a horizontal plane while substantially blocking the entry of the air boundary layers in motion with the yarns into said finish applicator device; b) attaching a second portion of said split-body finish applicator device in mated and sealed contact with said first portion of said split-body applicator device; c) contacting the yarns with a liquid finish under pressure; d) substantially disengaging excess finish from the yarns; and e) passing the yarns out of the applicator device with 0.2 wt. % to 5 wt % finish applied to each yarn with a coefficient of variation of 10% or less, and with little or no spray.