Apparatus for treating yarn with a liquid

Abstract

Abstract 777,522. Coating yarns. CELANESE CORPORATION OF AMERICA. May 24, 1955 [May 24, 1954], No. 14934/55. Class 140. In a process for continuously treating a running yarn with a liquid while it is travelling in a helical path along an advancing reel, a single treating liquid is applied to the running yarn at two or more points in its path and between each pair of successive points of application the greater part of the liquid applied to and remaining on the yarn is removed by simultaneously squeezing the yarn and applying suction thereto. A yarn 12 is wound to form a helix on a thread advancing reel 11 comprising a number of yarn carrying rollers 13 the axis of at least one of which is askew to that of the reel. Treating liquid is supplied from a header 17 having a supply conduit 18 to a number of sprays 19 which supply successive turns of the yarn as it passes over one of the rollers 13. Used treating liquid is withdrawn from the thread after each application by a sucker roll assembly 21. The sucker roll, which bears on the roller 13 next to the sprays or on one further removed, comprises a hexagonal core through each face of which extends a slot. The core fits into a perforated cylindrical shell, the ends of which are closed by plugs having apertures communicating with brackets' 24 pivotally mounting a header 22 to which suction is applied through conduits 23. A knitted fabric cover 25 is fitted over the sucker roll. The treating liquid removed from the yarn by the sucker roll is withdrawn by the circulating air and may be discarded, recycled with,fresh components or treated to recover components. To increase the rate of treatment a number of such roll assemblies and sources of treating liquid may be used. U.S.A. Specification 2,660,808 is referred to.

Inventors

• 👤 Addison H Lynch

Bibliographic Details