DE2154180A1 - Yarn finishing - partic uniform application of a brightening agent to high bulk yarn during bulking or shrinking without subsequent - Google Patents

Abstract

A yarn processing agent is uniformly applied to a moving length of yarn, partic. a brightening agent to a high-bulk yarn during bulking or shrinking, by bringing the processing agent in solid form into contact with the yarn and then heat-treating the yarn to soften or liquefy it. Finally it is fixed and the yarn is then wound.

Description

"Method and device for applying yarn finishing agents, in particular for the finishing of bulky yarn "The invention relates to a method and a device according to which one or more yarn finishing agents on one by a machine running yarn or a thread applied and completely evenly in it be distributed. In particular, the invention relates to the application of softeners on high-pile yarns during the bulking and shrinking processes.

In known yarn finishing processes it is assumed that the finishing agent, in particular the finishing agent, to be applied to the yarn or thread must be present in liquid form or as foam so that the yarn to be wetted absorbs enough softening agent in the desired even distribution. Included However, difficulties arise because the softener to be applied is not only the yarn nets, but also adheres to a considerable extent to all of the machine parts, tl come into contact with the moistened Gartl before the softener is on the (rarll fixes List. This difficulty; make on especially noticeable in known shrinking and bulking devices in which the yarn after the application of the finishing agent by a supplier and a nozzle in one of a corresponding one Heat treatment medium, in particular steam, passed through the yarn treatment chamber will. After a relatively short time, individual machine parts, especially the DU bore, which is so heavily soiled or soiled by the finishing agent. added that corresponding production hindrances occur.

The invention is therefore based on the object of the above shortcomings to be avoided during yarn finishing, especially when finishing high-pile yarns. This is achieved according to the invention essentially in that the yarn finishing agent Applied in solid form to the yarn, then by heat treatment of the yarn is softened or liquefied therein and then fixed in the yarn, which is then eventually wound up. By softening or liquefying the in solid Form applied yarn finishing agent comes during the heat treatment of the yarn it for its completely uniform wetting and impregnation with the yarn finishing agent.

According to a further feature of the invention, as is to be refined Yarn advantageously used a high-bulk yarn, the softening or liquefying of the yarn finishing material applied in solid form at the same time as the bulging and shrinkage of the yarn occurs. The latter happens with a known continuous Typically by the fact that the yarn continues through inf AJarnforXderdUse in one Treatment chamber blown will remain there for a certain period of time and is exposed to the inflow of a heat treatment medium, in particular steam, whereby the building construction effect is triggered.

The yarn is continuously withdrawn from the treatment chamber and wound up. Before the yarn gets into the treatment chamber, according to the invention Solid softener applied to the yarn to be lumped. That can be done in a simpler way Wise done by the fact that the yarn consists of a solid finishing agent Body is pulled, whereby its softener is rubbed off and adhere to the yarn remains, Since the latter is still in a solid state, it is the pollution surrounding machine parts passed through by the yarn only slightly, at least nowhere near as big as when applying liquid finishing agent. That so avivated Yarn is then introduced into the yarn treatment chamber and there the heat treatment medium, especially steam.

Two reactions occur at the same time. One day the bulky yarn will be shrunk and bulked under the influence of the treatment medium. On the other hand the softener on the yarn liquefies under the influence of the Treatment medium and wets and soaks the yarn during the bulking process in a very similar way. During the subsequent fixing of the bulky yarn at the same time the applied and then evenly distributed softener fixed.

By adding other yarn finishing agents to the finishing agent Further textile finishing effects can be achieved at the same time achieve. For example, it is possible to add an antistatic, fire retardant, to the softener Means, means for improving the sliding ability or for hygienic equipment to mix in the yarn.

In the drawing is one used to carry out the method Device shown as an embodiment.

The yarn 1 to be finished is from the drain body 2 by means of the two slightly conical rollers existing yarn feeder 3 continuously withdrawn. In doing so, the yarn passes a yarn brake 4 and then runs on the aw softening agent existing solid 5 over under frictional engagement. The solid body 5 is ring-shaped designed. In order to avoid that the yarn 1 is constantly over a certain line on Solid 5 runs and digs a groove in it, the body 5 is transverse to its Axis 5 'located in the direction of travel of the yarn is constantly rotated. I) the direction of rotation kciin different be selected, for example, to match the thread running direction or else be opposite. After passing the yarn delivery mechanism 3, the yarn 1 runs into the Yarn treatment chamber 6, into which it passes through the feed nozzle located at its entrance 7 is blown in. The nozzle 7 is fed in via the% 1X] f'.i 1 lNg 8 Heat treatment medium, in particular steam, fed. In the chamber 6 takes place both the bulging and shrinking of the Hochbauscllgarns 1 as well as the soft skin or Liquefying the softener applied by running past the solid ring 5, which is distributed evenly in the yarn.

In the upper part of the treatment chamber 6, namely in the stabilization zone 6 'are the thread and the oak on it Avivage fixed. The yarn is then used for further processing via the lower guide curve 9 withdrawn upwards to a winder, not shown.

Claims (6)

Patent claims: 1a method mm application of yarn finishing agents to a running Yarn, d a tl u r c h g e k e n n n n z e i c h n e t that the yarn finishing agent in applied in a solid form to the yarn, then by heat treatment of the yarn in it is softened or liquefied and then fixed in the yarn, which is then finally is wound up. 2. The method according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the yarn to be finished is a high bulk yarn and the softening or Liquefaction of the yarn finishing agent applied in solid form at the same time the bulging and shrinking of the yarn takes place. 3. The method according to claim 2, d a d u r c h g e k e n n -z e i c h n e t that a finishing agent in solid form is used as a yarn finishing agent will. 4. The method according to claim 3, d a d u r c h g e k e n n -z e i c h n e t that the finishing agent has other yarn finishing agents, such as an antistatic agent, fire retardants or the like are mixed in. 5. Device for performing the method according to one of several of claims 1 to 5, with one traversed by the yarn to be finished and one Heat treatment medium flowed through yarn treatment features, d a d u r c h G It does not show that in front of the treatment chamber (6) or one upstream of it Yarn delivery system (3) one from the yarn finishing agent, in particular a softening agent existing solid body (5) is arranged on which the yarn to be finished (1) under Frictional engagement passes. 6. Apparatus according to claim 5, d a d u r c h g e k e n n -z e i c h n e t that the solid yarn finishing body (5) is ring-shaped and around its axis (5 ') located transversely to the direction of travel of the yarn rotates. Blank page