GB682409A - Improved apparatus for the continuous treatment of freshly-spun threads or yarns with liquids in tube systems prior to collection - Google Patents

Abstract

<PICT:0682409/IV (a)/1> Apparatus for treating freshly-spun yarn or thread with different liquids prior to collection, wherein the yarn or thread is passed through a plurality of tubes arranged one above the other, is characterized in that a vertically mounted nipple is provided at the outlet of each tube for simultaneously discharging the thread and the liquid and that the position of each nipple can be modified in relation to the supply opening for the thread in the succeeding tube. In the preferred form, some of the tubes may be so arranged for movement so as to place the supply opening of the movable tubes below the discharge nipples of the other tubes. As shown, the tube system comprises a series of tubes 11-16 in which a synthetic or artificial thread 10 (e.g. as spun from viscose) issuing from a spinning bath is treated with various liquids such as, for example, water, sulphuric acid, water, sodium sulphide, water and a finishing material respectively. The tubes are provided at one end with vertical discharge nipples 17-22, respectively. The other ends are connected to the liquid supply lines and near these ends are located supply funnels 23-28, respectively, integral with the tubes. The thread is introduced into the tubes by these funnels, issuing with the liquid through the discharge nipples at the other end. Tubes 12, 14 and 16 may be mounted movably, and advantage is taken of this arrangement on spinning-in. Funnels 29, 31 and 33 are mounted on and move together with the movable tubes 12, 14 and 16, and these funnels as well as funnels 30, 32 and 34 mounted on the fixed tubes serve to carry off the treating liquids. The position of the movable tubes and funnels when spinning-in is shown in broken lines in the drawing. In this position the integral funnels 24-28 are directly below the discharge nipples 17-21. The outlet of the last tube 16 is above a funnel 35 mounted beside the funnel 34. Water under pressure is supplied horizontally through each tube, thus propelling the thread through the system. If desired, the thread 10 may enter the system with the aid of water. The thread leaving the system may be guided on by means of rollers. The movable tubes 12, 14 and 16 are then shifted to the position shown in continuous lines and the water supply stopped and the treating liquids introduced. The movement of the tubes and the movement of the valves controlling the liquid and/or water supplies may be effected by a single controlling member. The funnels 24-28 may be extended below the tubes to allow any liquid carried by the thread to drain away. To increase the efficiency of the suction through the tubes a venturi may be provided near the supply opening as in tube 11. The thread may be maintained in the middle of the tube by a slight interior rise near the nipple.