DE1902006A1 - Rapid dyeing of textile material - Google Patents

Abstract

The textile material is sprayed in a pressure vessel using circulating liquor. The charge dye liquor consists of a part of the used liquor, with remains constant and comes from the preliminary charge, and an equal amount added corresponding to the deficient proportion which always has the same addition of dye concentrates. After dyeing, the material is rinsed in the pressure vessel, and the rinsing water or a part thereof used as the amount added.

Description

S70 Nhim-Hü * ton with _{Eugen Bellraann} GmbH

"Rapid process for dyeing textiles and equipment for this"

The invention relates to a rapid process for dyeing textiles in batches by spraying them in a pressure vessel in the case of circulating liquor (short liquor ratio), where the dye liquor required in each case for the batch is composed of »an always the same part of the liquor used from the pre-batch and an addition amount corresponding to the still missing portion with a constant addition of color concentrate.

It is about a rapid dyeing process that works in principle according to the teaching of German patent 1 o39 o17. The material is treated in batches in a pressure vessel by spraying with dye liquor. The so-called short liquor ratio is used where the The amount of dye liquor is essentially only so large in one To bring about circulation (no noticeable liquor st & ud in the vessel). The liquor is heated like a raid by adding superheated steam, which starts the dyeing process only takes seconds to a maximum of a few minutes.

009Ι32ΥΪ607

190201) 6-2- 7th June. 1969 / Wg.

Dos Verfuhren according to the invention also makes of the Teaching of the German PatenU 1 14b 2o7 use. Yet this patent is going to be in order on successive events to achieve uniform coloring as soon as possible Dyeing liquor of a batch always consists of a constant part of used liquor from the previous batch and one Added amount with always the same proportion of color concentrate, Composed of water and auxiliaries.

Textile goods usually have to be rinsed with fresh water after dyeing, with so-called “finishing agent” added to the fresh water can be added. However, up to now rinsing has always been done in special containers. So it was after everyone Batch required, the textile goods out of the pressure tank for to further convey the dye into the rinsing apparatus.

The invention is based on the object of avoiding this and special equipment for the flushing process. Otherwise noil also dna vorganwio method from patent specification 1 MB 1o7 heat can be technically improved.

The solution of the invention consists in that the textile batch near the dyeing in the printing vessel where the dyeing took place

-3- 7..lon. 1969 / Wg.

has, is rinsed and that then all or part of the rinsing water is added for the dye liquor or the next Batch is used.

l) our ancestors can be carried out particularly economically, if just the further invention the necessary rinsing The amount of water in the pressure vessel remains and the required amount of used liquor remains after the amount of furb concentrate has been added is fed into the back vessel.

The invention extends further to all drawn, features described and claimed.

The advantages of the invention are essentially as follows: Only one vessel is required for rinsing and dyeing. Therefore the circulation and sprinkling when dyeing are particularly efficient and intensively working systems are required, the washing process is also correspondingly effective and concentrated focus on a shorter period of time.

As before, fresh water is not required for the added amount. The interior of the pressure vessel is rinsed eit fresh water cleaned after each fill. The at

»4- 7 Jan 1969 / Wg.

The heat generated during dyeing remains in the rinse water and is therefore retained for the next dyeing process.

It is particularly advantageous if the rinsing is carried out with essentially the same amount of water that is then also required as the added amount. In this case, the flushing water does not need to be withdrawn from the bridge vessel, thus saving a special collection and measuring vessel for the rinse water, In addition, a particularly large amount of heat is retained for the next dyeing process. In this case, the required proportion of used liquor is enriched by the constant proportion of color concentrate, introduced into the pressure vessel.

According to a further development of the method, however, the rinsing water can also be drained into a special collecting vessel after rinsing and ₃ new doses for the next dye batch. In this case you have a free hand with regard to the choice of the amount of rinse water on the one hand and the dosage of the amount to be added on the other.

In the following, exemplary embodiments of the invention are described in greater detail with reference to the accompanying drawings.

-5-009832 / 1607

-5- 7 Jan 1969 / Wg.

1o there is a pressure vessel with the spray devices 1oa and the textile goods, consisting of stockings drawn onto molds. 1oc is the pump that controls the dye liquor when spraying of the goods constantly circulating. The dye liquor is so small that not Tiä. more than the so-called pump sump and the piping system remains full. The dye liquor is heated by introducing τοη steam. 12 is a collecting vessel for used RFC fleet, 11 a Measuring vessel for measuring the same as well as for measuring the new coloring concentrate and the rinsing water.

2o is a collecting vessel for rinsing water, 21 an associated one Measuring vessel (shown with dashed lines, as alternatlr).

A first method example will now be described.

The amount of dye liquor that runs at «FärbeTorgang mm» is 50 liters. After finishing the dyeing gate gear 3 is the entire dye liquor through the pressure 1 «vessel 1o into the Sam ~ brought the jar 12. Then with a flushing water drawdown τοη 25 liters rinsed in the pressure vessel 1o. After the When rinsing, the 25 liters of heated rinse water remain in the vessel.

At the time of the rinsing process, 24 liters of used dye

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liquor removed from the vessel 12 and placed in the measuring vessel 11, in addition there is 1 liter of fresh color concentrate, supplied via the line 17. The contents of the vessel 11, ie a total of 25 liters, is poured into the pressure vessel 1o after the end of the flushing process and forms together with the 25 liters Rinsing liquid the 50 liter dye liquor for the new batch. The unused remainder of the used liquor in the vessel 12 is drained via the overflow line 14.

At the time of the dyeing process, the amount of rinsing water is in the measuring vessel 11 of 25 liters, fed to the line 18.

From the collecting vessel 2o and the measuring vessel 21 (dashed drawn) for rinsing water is used if, for example is rinsed with 25 liters of rinsing water, while the new dye liquor only requires 15 liters, for example will. Of course, the proportion of used fleet must then be increased accordingly, so again a total of 50 liters are available for dyeing.

Ss lot also possible, on the Samaelgefäaa 12 and 2o bu ver-Biohten and gletoh the required share of used liquor

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or rinse water after dyeing from the vessel 1o

or 21 and lead into the measuring vessel. In practice, however, the collecting vessel 12 has proven itself, because there the steaming and used paint liquor which is under high pressure can first calm down before the corresponding portion is passed on to the measuring vessel 11.

-8th-

009832/1607

Claims (4)

-8- Jan. 7, 1969 / R.- Patent applications 1. Rapid process for dyeing textiles in batches by spraying into a pressure vessel with circulating liquor (Knrzes liquor ratio), where the respective Batch dye liquor composed i & t from one Always the same amount of used hotte from the pre-batch and the same amount of addition, corresponding to the missing portion, which always has the same addition of dye concentrates, characterized in that the goods are rinsed in the pressure vessel after dyeing and that the rinsing water or a Part of it is used. 2. Rapid process according to claim 1, characterized in that the new batch liquor is prepared in the pressure vessel, with a proportion corresponding to the addition Rinsing water remains in the vessel and the proportion of used liquor from the pre-charge is added after adding the fabric concentrate. 3. Plant for a method according to claim 1, characterized by a pressure vessel for treatment, a collecting göfäß to receive the used liquor and a -9- 009832/1607 -9- Jan. 7, 1969 / R.- Measuring vessel for measuring the same as well as for measuring df, 3 fabric concentrates. 4. Plant according to claim 3 _f, characterized by a collecting vessel (2o) and a measuring vessel (21) for rinsing water. 009832/1607