DE2214713C2 - Method and device for the wet treatment and drying of textile material - Google Patents

Description

It is known that Naßbehandlungsprozesse such as washing and rinsing are carried out in aqueous liquors wöbe, depending on the type of fiber at different temperatures and, where appropriate, working with different Hilfsmittelzusätzcn _W1 rd and wherein subsequently is dried in almost alien cases. Wet treatment processes in organic solvents are also known, the focus being on halogenated hydrocarbons as organic solvents. After treatment in organic solvents, these are removed from the goods by evaporation and recovered in a suitable apparatus. Basically, all processes are based on the fact that energy has to be expended to remove the water or organic solvents during drying.

Subject of the present invention, if the too low flame development at the ver-points, a ^ '_n; _e three evaporation numbers burning and too _never dnge ^ ^^ ^^^

sit especially gg _{MethanoI The} alcohols mentioned, ^{ms> ü} " _{ndn or} in _a mixture with

However ^{^) Sungsm} '' ^e 'I _t It is also possible waters turned · g ^^ he solvent einringe Mengen_ soluic s ^ _ren enforce _{a large} heat ß _e a "oei _{n is mh Impragn; he} _ ^^ entwickeln._oesonu ^^ ^ ^^ _em

"°" ^{en roe a} _R '' _{are as} i _c e liquors which hold between. Preferably _{methanol and 70} to 10

30 to 9U ^ν οιυ ™ Ρ _sweise 50 to 80 Vo-

, ^Volumpr ° f ^ ZaS included.

> 5 'TÄKÄ et "Sh for practically all fiber

.? ",: £££" or of synthetic origin so-

^ "^" / 'f * " _m j _schun pen. The textiles can

as for all ρ ^5ε ™ ¹⁵ _ιίηυϊ | _{Γΐί (: 1ιβ} working method suitable

'",! l vw _a rbe" mn «s / states exist, such as hcrne en ^VtrarDUlJ ' ^. _Comb pull, threads. Yarn.%

* Ρ ^ £% £ _Λ ™ £ _n on-wove £.

ijeweoe, u ·. . _ff Wet treatments are above all

^Ll V ^er , ",, c _nü inrozesse / u understand how they

Wascn-. ^{unu 3} »» _Tcx | ni _n industry carried out wci- * ₅ hcherwe.se in atr

The _{inappropriate} procedure is usually

Guided that the goods, for example be.m

Washing, in a suitable facility with a washing machine

flo te washes, in addition to the usual process for dieseri

lent detergent additives different amounts

one ode, ^^^^ ÄSTÄiT ^ keitcn «« stop. Ua na ^^ _the ^

a ° ^{der mt} - ^hrr " _{as in the} washing process, however

ül Tue

_{as with} Wagg j

^Ζ "^ ™ ^ ^Ζ11 ^ _η detergents, rinsed. This without additives ^Vl _{ejne flammable organ} i.

^^^ _η detergents, gp without additive ^Vl _{ejne flammable organ} i.

SpulprozeB mt non, _also ^ _üb

^ ^River ; f ^ ss

process with non, _a

^Flus; f ^ OS "dSchgpführte Naßbehandlungs- * f" ^g ^ / S _e lsweise bleaching, washing and

₊ o processes ^like
Fa ^ ^en ^ ^S ~

tion

?
Alcohol,

_JW Drying by incineration, if the liquid on top of it consists of 30 of a lower aliphatic methanol, and 70 to 10; This is the washing as well as the composition

^the

uuci V.I11W i _U , v „v contains. Protection is claimed that the material is dried by burning off this liquid.

A drying device suitable for carrying out the method, on which the present The invention also relates, generally consists of a combustion chamber with an inlet and an outlet as well as means of transport for the goods when passing through the system, an ignition element and means for the supply of air and for the removal of the combustion gases and the water vapor.

All combustible liquids can be used as combustible organic liquids for the process according to the invention water-soluble or water-miscible and - in connection with emulsifiers - water-insoluble Liquids in question, but those for safety

After rinsing, the goods are ^ ₆ -,

dried in the manner by passing the combustible organic solvent through a suitable ignition device ignites and burns down completely. It is advisable to use such mixtures for safety reasons from water and flammable organic solvents, to use their flashpoints are above room temperature. Such mixtures require that the igniter is designed in such a way that initially it is necessary to heat the solvent vapors above the flash point er-65 supplies necessary energy. The speed of the combustion process can also be increased by adding water steer. In this way, an optimal mixture can be found for every fiber material.

those that ignite the fiber material during the combustion chamber can use a suction device (9)

the burning process prevented. be connected upstream, which ensures that such

When burning occurs a more or less starch vapors are sucked off by the

There is no scorching effect emitted by the flammable solution moist goods before entering the chamber

medium as well as the water content of the treatment S

iotten dependent and in many cases a common one.

No scorching treatment. direction to stop the machine consists of

The advantage of the method according to the invention nozzles (10). which is displayed when open or half-open in that you wet the textile material after. are directed towards the combustion section action processes in a simple way and practically and with closed execution within table can dry without using energy. It was the combustion chamber or before the inlet oil Surprisingly, the fiber with this handling and possibly even before the discharge sustains no damage and the textile character of the same and through which nitrogen ter is fully preserved. Another advantage of the or another non-flammable or the Vcrfindungsgemäße The process consists in passing gas that does not sustain special combustion when using methanol by the can.

During the burning process no substances are produced that could contaminate the air. or contaminate the water. The use of a simultaneous shutdown of the oxygen-methanol / water mixtures also provides the or air supply connected.

Advantage that by modifying the mixing 20 in the system shown in the drawing

In relation to the speed of the burn-off process, the goods can also be guided from top to bottom

gangs can be controlled in a simple manner and become. In this case you need the igniter

change in this way the natural moisture (2), the means for the supply of air (3) and

the fiber can regulate better. the suction device (9) on the upper part of the

The device shown in the drawing must be attached to the combustion chamber,

consists of a combustion chamber (1), an ignition pre-. · 1 ·

direction (2) and means for the supply of B e 1 s ρ 1 e I 1

Air (3) and to discharge the combustion gases A mixed fabric made of polyester fibers and tree

(4). The material (5) can either be wool from above on a wide washing machine (laboratory

enter the combustion chamber from here or from below. 30 layer) in an aqueous liquor in 4 compartments

In addition, certain safety devices must be treated 92 to 95 "C, which contain 1 g / l of a non-

gen exist. ionic detergent based on an alkylphenol

If the material enters the chamber of polyglycol ether, 1 g of 1 soda and 1 g / l of a sequestry from below, so the ignition device must be designed to contain a polyphosphate-based agent, that a constant ignition of the goods 35 between the individual compartments of the washing machine Any new solution entering the combustion chamber is squeezed off. In connection to is guaranteed by means. If the material is reversed - this washing process, the goods are transported further the ignition device is only used to divide the washing machine once in hot water, to ignite the solvent vapors. The burn-off then in cold water and finally twice The process then continues by itself, since the moist 40 is rinsed in cold methanol.

Goods run into the rising flame. After the last rinsing process in methanol

a uniform drying of the material to be squeezed the tissue and through a plant

hold, there must be an ignition device on each side, in which the alcohol is burned

of the material or at both edges is removed from the goods and these are thereby

to be As ignition devices come for example 45 is dries,

wise gas flames or electric ignition devices 1 2
in question.

The combustion chamber is at the top from safety A woolen fabric is bleached in the usual way in watery grounds, expediently by a metal roller liquor, and then initially sealed in pairs (6) cold. In the lower part of the chamber 50, rinsed with water, squeezed off and then cold twice, generally an inlet or outlet slot is sufficient, rinsed in ethanol and squeezed off again in each case. (7). Both the metal rollers as well as the one or the squeeze-offs are chosen so that the outlet slit can be provided with sanding belts (8) or the goods after the last squeeze in addition to other non-flammable seals with approx. 20% water, based on the weight of the being. The height of the chamber depends on the goods through which the woolen fabric contains is now fed through a system in which the goods and the amount of flammable liquid used are dried by burning the alcohol. For practical purposes, the length of the combustion chamber is 5 to 10 m, preferably 1 to 5 m, after this incineration drying Fiber can be executed in an unopened form, where the side speaks,
walls are completely or partially omitted. Example 3

At the upper end of the chamber there are

Inlet openings (4) for the hot exhaust gases, which are directly A cotton body is placed on a jigger in

in a fixation next to the burn-off chamber dyed with vat dyes, an-

chamber can be directed. The closing for incineration is flushed, oxidized and in the usual way

required air is soaped at the boil through appropriate pipes. The goods are then consigned

(3) fed from the outside. For safety reasons, continuously, as described in Example 1, hot and

Rinsed cold in water and then three times cold in methanol and finally by burning of the solvent dried.

Example 4

A blend of 67% polyester fibers and 33% cotton is washed in a wide washing machine, as described in Example 1, treated in the following way: washing in 4 compartments at 50 ° C with 0.5 g of an oxyethylation product of 10 moles of ethylene oxide and 1 mole of nonylphenol per liter of a mixture from 75 percent by volume methanol and 25 percent by volume water, rinsing in 3 compartments in the same ethanol / water mixture.

After the last rinse, the goods are squeezed off and passed through a system in which the methyl alcohol is removed from the goods by incineration.

Similar results can be achieved if the following solvents or products are used for the washing or rinsing liquors: methanol and nonylphenol oxyethylated with 15 moles of ethylene oxide; Isopropanol is oxyethylated with 10 percent by volume of water and tributylphenol with 18 mol of ethylene oxide;
Gasoline (boiling range 60 to 95 ° C) and nonylphenol oxyethylated with 4 moles of ethylene oxide;
Benzene and isotridecyl alcohol are oxyethylated with 8 moles of ethylene oxide.

1 sheet of drawings

«Ι

183S

Claims (4)

Patent claims: 1. Process for rinsing or washing and subsequent drying of textile material which one treats the material with a liquor consisting of a combustible organic Liquid exists or contains such a liquid, indicated by the fact that the material is dried by burning off this liquid. 2. The method according to claim 1, characterized in that that the washing and rinsing liquor is a lower aliphatic alcohol, in particular Contains methanol. 3. The method according to claim 1 or 2, characterized in that the washing and rinsing liquor contains between 30 and 90 percent by volume of methanol and 70 and 10 percent by volume of water 4. Drying device for carrying out the method according to one of claims 1 to 3, consisting of a combustion chamber (1) with entry and exit as well as means of transport for the Goods passing through the system, e.nem Zündclcment (2) and means for the supply of air (3) and for removing the combustion gases and water vapor (4).