Hoechst Aktiengesellschaft

Wilhelm Christ

Hans-Ulrich Von Der Eltz

Albert Reuther

In the textile industry there is a constant need for processes where the textile material to be treated can be treated in a simple form, for example in rope form instead of in the open-width state, and continuously. According to the invention, this need is met when the textile material is introduced via pressure seal elements into a specially constructed jet dyeing machine, is impregnated there with treating liquor during entry or immediately thereafter and is conveyed further in the machine by means of at least one jet operated by means of a gas stream, the treating agent applied, preferably dye, having advantageously been subjected to fixation in the course of the presence in the gas atmosphere. The necessary physical conditions (pressure, temperature) for this are created by the driving gas. Moreover, in the course of the passage of the textile material it is possible to carry out a further, including a completely different, impregnation.

Apparatus for continuous treatment, preferably dyeing, of textile

In industry there is, for economic reasons, an urgent need to be able to carry out the drying of moist textile material immediately after a completed wet-treatment in the same apparatus in which the preceding treatment operation was carried out. According to the invention the problems arising in the case of textile materials treated in rope form on jet units are solved by evaporatively dewatering the textile material in rope form by means of the gaseous agent which in the case of fabric-advancing jet systems operated by flowing liquor, steam or hot air takes over the transport of the goods immediately after the wet-treatment and which acts on the textile material under a predetermined variable superatmospheric pressure, then cooling the circulating drive gas to condense out the absorbed moisture, and recirculating the air thus dried.

Apparatus for drying textile material in rope form

Process for continuous treatment, preferably dyeing, of textile material

After a dyeing operation has been concluded, the hot dyeing liquor present in the piece dyeing jet is returned via a cooling heat exchanger in the dyeing circulation system back into the makeup storage vessel for the dyeing liquor. Thereafter, the liquor-free dyeing system, which is still under an elevated static pressure, is relieved to atmospheric whereby the dyeing system is cooled down adiabatically together with the dyed textile material present therein to such an extent that a sample can be taken therefrom rapidly and safely.

Method for the removal of fabric samples from HT jet dyeing machines

Process and apparatus are provided for the batchwise wet treatment of textile material with an aqueous liquor that contains dyestuff or other textile processing products according to an exhaust technique. Textile material in continuous loop form is recirculated in a jet dyeing machine, and a recirculating gas stream propels the material. A blower recirculates the gas stream while aqueous liquor is metered into the stream by aspirating the liquor at the upstream side of the blower. The action of the blower finely disperses the liquor within the gas stream.

Process of treating textile material in jet dyeing machines and

Process for drying textile material in rope form

Inventive considerations have shown that the use of shorter liquid ratios can be realized in the course of wet-treating textile ropes in jet dyeing machines if the textile goods are driven by means of a non-inert gas stream and the dyestuff or product formulations necessary for carrying out the type of treatment desired are brought into contact with the goods by atomization into the circulated gaseous driving agent.

Growing community of inventors

Michelbach/Bilz, Germany

Wilhelm Christ