Process for the continuous wet treatment of textiles in rope form

• US 4,064,583 A
• Filed: 08/20/1976
• Issued: 12/27/1977
• Est. Priority Date: 08/23/1975
• Status: Expired due to Term

• Current Assignee: Hans-Ulrich Von Der Eltz
• Original Assignee: Hoechst Aktiengesellschaft (Sanofi )
• Inventors: von der Eltz, Hans-Ulrich
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US05/716,276
• Time in Patent Office: 494 Days
• Field of Search: 8/149.1, 8/151, 8/152, 68/5 D, 68/5 E, 68/9
• US Class Current: 8/149.1
• CPC Class Codes: D06B 19/0035 the textile material passing through a chamber
• CPC Class Codes: D06B 21/00 Successive treatments of textile materials by liquids, gases or vapours successive treatments in which the characteristics of a single treatment are of interest only, or in which all treatments have characteristics provided for in a single main group, see the relevant groups for the single treatment
• CPC Class Codes: D06B 23/16 with means for introducing or removing textile materials without modifying container pressure
• CPC Class Codes: D06B 3/28 of fabrics propelled by, or with the aid of, jets of the treating material

Abstract

Process for the continuous wet treatment of textile material in the form of endless ropes under high temperature conditions, which comprises conducting the material at open width into a sealed-off pressure container, impregnating it therein with an HT bath and transporting it forward in a stream of the liquid that runs off, pulling it together to form a rope and having this rope further penetrated by the circulated impregnation bath during its passage through a heavily flooded reactor installed in the pressure container, then withdrawing it therefrom through at least two pressure locks positioned one behind the other under graduated pressure into a dwelling chamber placed under atmospheric pressure and exposing it therein, in stored condition, to the action of a vapor atmosphere or to the flooding with optionally another treatment liquor at most at boiling temperature or less.

Claims

1. A process for the continuous wet treatment of a fibrous textile web in which the textile material is to be impregnated in a pressure container under high temperature conditions with a liquor containing a treating agent and thereafter the treating agent is fixed onto the fibers of the material during a dwelling operation, said process comprising the steps of impregnating said textile web in said pressure container in its open width form while in a dry state with said treating agent liquor, thereafter forming said web into a rope and further soaking the rope in the pressure container in said treating liquor;

thence withdrawing said rope from said pressure chamber through at least two successive chambers through at least two successive locks, each containing a successively lower pressure than said pressure container, into a dwelling chamber under atmospheric pressure, returning said textile web from its rope form to its open width form in said dwelling chamber while fixing the treating agent on the open form web.

2. A process as defined in claim 1 wherein the web treatment is a dyeing operation.

3. A process as defined in claim 2 wherein said web is exposed in said dwelling chamber to another treatment liquor.

4. A process as defined in claim 2 wherein said pressure locks have a shell configuration comprising two frustro-conical sections having complementary small base portions located adjacent each other to define a narrow neck whose inner diameter is substantially equal to the diameter of the rope.

5. A process as defined in claim 1 wherein said web is exposed in said dwelling chamber to a vapor atmosphere.