DE1635099A1 - Method and device for the continuous treatment of wool - Google Patents

Description

mpiar

to be jirted

VEPA AG V .200

Basel / SCHiYEIZ- -, 27-9-1966,

Method and device for the continuous treatment of wool

The invention "relates to a method and an apparatus for continuous treatment of wool, especially as a top, which is given a shrink-proof and anti-felt finish and which is dyed and printed. ■

The scaly structure of the wool plays a role in felting the wool essential role. The aim of any mushroom-free equipment is therefore either to remove this scale structure or its function to rob. A multitude of processes for non-felting and shrinking '<real finishing of wool are known. These procedures can be divided into two groups:

a) in the process of breaking down the fiber substances and

b) in processes for the deposition or incorporation of polymers on or in the fiber,

The breakdown of the fiber substance can take place through

i. chemical degradation with oxidative or reductive compounds, e.g. when treating with:

Hypochlorite in acidic solutions, IlypochlOrite in alkaline solutions Solutions, hypochlorite in an alkaline medium with added permanganate, Chlorine gas / air mixture (dry chlorination), nitrogen halogen compounds, Sulfuryl chloride j Nitrosyl chloride, organic chlorine compounds in anhydrous solvents, fluorine or bromine compounds, Persulfuric acid, copper sulfate and peroxide, potassium

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permanganate in acidic medium, potassium permanganate and bisulfite, Sulphite - peroxide, peracetic acid and chlorine, alcoholic Potassium carbonate solution, sodium hydroxide solution in anhydrous solvents,

2. Enzymatic degradation during treatment with:

Papain - bisulfite; Peroxide, papain bisulfite; Dry chlorination, Papain - bisulfite; Peracetic acid, papain - bisulfite; Bromeline.

The deposition or incorporation of polymers can take place by Treatment with: methylated N-methylolmelainin or urea, ™ methylated polyamides, silicones, polyamino acids, polyacrylic acid derivatives, Natural rubber, synthetic rubber.

The anti-felt and anti-shrink finish can be used at any processing stage the wool, i.e. with loose wool, Sliver and yarn, but also for woven and knitted fabrics.

It has already been suggested that continuous shrink-proof .and To carry out anti-felting equipment on Lisseusen. These Lisseusen consist of a material feed device, a series of baths, each of which is followed by a press, a dryer and a material depositing or winding device. In many Cases are currently still being operated discontinuously.

They are continuously operating devices for dyeing V / 61Ie known. For example, a continuous dyeing machine for tops has a Material feeding device, which e.g. 20 combed slivers to one Material web combined, a foulard for applying dye liquor, to fix the dyes a damper in the form of a J-box, in which the combed slivers are stored in folds and under steam linger in the atmosphere. Then the combed belts run through several baths in which the additives and the unfixed dyes be washed out. The combed slivers are then dried on a sieve drum dryer and placed in pots or rolled up

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The invention is based on the object of the known methods and to further improve devices for the continuous treatment of wool, in particular the continuous treatment of wool to make it even more economical.

According to the invention this object is achieved in that one continuous anti-shrink and anti-felt finishing process with combined with a continuous dyeing process without intermediate drying of the Violle. This combination doesn’t just bring one by eliminating a drying process substantial savings in energy costs, but it also leads to a considerable saving in labor. When treating Combined, the staff can take up about t / 3 of the otherwise necessary people be reduced. The invention also provides a very gentle treatment of the wool. A subsequent combing is not necessary themselves.

If the anti-shrink and felt-free finish is achieved by "breaking down the fiber substance, i.e. the flake structure, by using halogen-releasing substances, e.g. chlorinated lime", it is clear recorded increased dye absorption capacity of wool.

Process based on the breakdown of the scale structure are preferred because the chemicals and auxiliaries are used are relatively cheap for this. Recently, however, finishing processes that involve deposits have also been used more and more or incorporation of polymers on or in the fiber work.

In an embodiment of the inventive concept, in particular at These processes, where one works with natural and synthetic polymers, make the treatment process even more important be shortened that simultaneously with the treatment liquor for the anti-shrink and anti-felt finish also applied dyes will. This can be done advantageously in that one in the

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Solvents or dispersants of the treatment liquid used dissolved or dispersed dyes, compared to are affine to the wool fiber.

According to another idea of the invention it is proposed to further development of this continuation process to connect a carbonation treatment to the continuation process. It is favorable when the carbonation treatment precedes the continuous process. . .

As a device for carrying out the method according to the invention it is suggested to follow:. -" at. known single units combine:

a) a material feed device, e.g. a box feeder loose wool or a pot, jug or wrapper device at Kammζug,

b) an impregnation device, which in particular consists of a padder, preferably gusseted foulard with a slide underneath or consists of a suction drum bath,

c) at least two baths, in particular with two S.aügtroramel baths for rinsing and neutralizing,

d) a further impregnation device, in particular a padder or suction drum bath for dye liquor application,

e) a heat treatment chamber for dye fixation, e.g. can consist of a J-box or a band damper,

f) at least two, "preferably 3 - 4 baths, in particular suction drum baths, to wash out the unfixed dyes

* and the aids and for rinsing,

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g) a dryer, preferably a sieve drum dryer,

h) a depositing or winding device,

l) press rolls after each wet treatment unit,

j) a common control device, preferably DC control direction.

This device can be a continuous carbonator, which is connected to the control device, are connected upstream. It is particularly advantageous if for application the carbonation liquor, i.e. the acid, a suction drum bath is used. It has been shown that by a suction drum bath the network times can be shortened considerably.

Another device, which in particular for treating with Is determined by polymers, consists of:

a) from a material feeding device,

b) one or more drinking devices for separate or common Application of the treatment liquor, e.g. with soluble monomers or polymers and the dye liquor, if necessary Catalysts and auxiliaries, which are the monomers or polymers convert into insoluble polycondensates or polymers,

c) a heat treatment chamber, preferably with a steam atmosphere and optionally auxiliaries and / or "a catalyst for Dye fixation and optionally for wetting and fixing of the resin, furthermore

d) at least two baths, preferably suction drum baths for Washing out the non-fixed components and aids,

e) a common control device for the aforementioned units.

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For Pilzfrei- and Krumpfechtausrüstung of sliver, the wool, for example, with an alkaline hypochlorite solution at pH 7.5 - 10 "and an active chlorine content of 1-6 ^ are treated at room temperature, the soaking time or contact time is here preferably 2 -. 10 It is advisable to add a wetting agent (0.1 - 1 %) to the liquor, since this process does not show any yellowing of the wool, and the handle is not impaired in any way.

Other methods require exposure times of several minutes needed. Longer exposure times can be achieved in a simple manner that according to a further inventive concept a slide arranged below a gusset pad, which made of plastic or another acid-proof material. This slide, the lower end of which is preferably bent, is used as a store of goods. The wool here is generally in folds. Instead of a slide, however, a conveyor belt can also be used.

Instead of a dyeing process, the finishing process can also be a Downstream printing process. A printing process can be used for tops, yarn and piece goods.

When finishing with polyamides, the material to be finished can impregnated with a polyamide and cross-linked on the fiber be fixed with an epoxy. When dyeing, the usual Wool dyes are used, e.g. metal complex dyes.

In another process, where the finishing is done with polyacrylic acid derivatives, for example the wool can be impregnated with ammonium peroxydisulphate and suitable dyes. The material at about 90 - 100 fo final moisture is squeezed, is then used to dye fixation in a steam atmosphere of about 98 - 100 ° C accommodated, which at the same monomeric Metaerylsäure-Methylester

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contains, so that a thin film appears in the steam atmosphere that forms wool. It is also favorable, the monomeric methacrylic acid methyl ester spray onto the wool in the steaming room. Due to the induced draft, the wool is evenly distributed over the cross-section mentioned wetted.

Two embodiments of a device according to the invention are shown in the drawing.

Show it:

Fig. 1 - the schematic structure of a device for top draw, Fig. 2 - the schematic structure of a device for loose wool.

The device shown is particularly for continuous treatment determined by Karamzug. For example, 20 combed slivers can be used here are combined side by side to form a web and are subjected to the continuity process in this position.

The system has a can take-off device 1. The individual combed slivers 2 are arranged into a web of material and fed to a padder 3. 'The liquor is applied here in the gusset. Below the press rolls k the foulard 3 5 is disposed of plastic having a slide, on which the combed slivers 2 in folding position stay for a certain time, and during this time of exposure are exposed to the Behandiungsflotte before they are fed to a withdrawal mechanism several ^s äugtrommeIbädern. 7 The baths shown are used for rinsing, neutralizing and rinsing. EM pressing unit 8 after each suction drum bath 7 is used for extensive dewatering of the wool when it passes from one bath to the next. The last suction drum bath is preferably assigned a high-performance press 8 ', after which the combed slivers are passed through a further padder 9 in which they are impregnated with dye liquor. To dye

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Fixing a steam chamber 10 is provided in the form of a J-box. In this steam chamber, the Kamrazugbänder are stored at a Stap ₌ el folded. Behind the steam chamber, three suction drum baths are again provided for washing out the non-fixed dye content and the auxiliaries. The number of suction drum washing baths is only. for example drawn with 3 baths. In various cases, only two or more than three baths can be used. Impregnating baths, preferably suction drum baths, can also be used instead of the two padding machines 3 and 9.

fc The drying takes place on a sieve drum dryer 11 with under

Induced draft screen drums. The fan (not shown) for = Generating the suction in the sieve drum is known in the art assigned to the front of each sieve drum. The structure of the sieve drum dryer corresponds to the well-known sieve drum dryers. Afterwards, the combed slivers 2 are deposited again in cans 12.

. The apparatus of Figure 2 is similar: construction as the apparatus of Figure 1, the loose wool is impregnating ± set here by means of a Kaster} -speisers a 13 h.. Instead of the impregnation bath, however, a padder for loose material can also be used. A conveyor belt 15, which feeds the material to the first suction drum bath 7, serves to linger the loose fiber material. In the baths shown, the yarn is rinsed, neutralized and rinsed again in the same way as in the device according to FIG. 1, in order to then reach a further impregnation bath 16 in which the dye liquor is applied. To fix the dyes, a sieve belt damper 17 is provided which, in the vicinity of the inlet, has, for example, a cross-flow fan 18 for schoek-like heating. Suction drum baths 7 are again arranged for subsequent washing. The loose wool 19 is then dried on a sieve drum dryer 11 and filled into a container 20.

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This system is also very suitable for treating: tops and yarn. All that is required here is the material feed device, in this case the box feeder 13; will. In the case of yarn, a multitude of yarn threads, for example 300 threads in a parallel position, are lined up closely to one another, similarly to Kamia drawstrings, so that these threads form a goods tap, which can then be treated accordingly. On the belt damper, the threads can be tabled in folds , so that a thick layer of material and thus large amounts of material can be treated on the sieve belt. A similarly constructed device can also be used for woven and knitted fabrics.

Appropriate devices can be used for printing, liier is only the impregnation device for applying the Ink liquor exchanged by a printing device.

It is very favorable if water-soluble dyes are used in this process; because then more concentrated liquor can be refilled in the padder, which mixes with the water entrained by the wool to the usual liquor concentration. With the high-performance press, which is used for the dyeing oulard. is connected upstream, for example Kairimzug can be squeezed to approx. 55 $ final moisture. 110 fo final moisture content of the sliver pressed - with the impregnation of dye liquor is usually at about 100th The liquid difference of 45 --55- ° / of which the wool also absorbs is sufficient to add enough dyes and auxiliaries to the wool.

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Claims (1)

I ft _ f., Basel, Switzerland Sv 27-9 ~ ^ ΐψ & 6 —'-- 'J ¹ J 'J ¹ ■ PAT E N- TAHS P R Ü C H E I ₁ ) Process for the continuous treatment of wool, in particular as sliver or yarn, = which receives a shrink-proof and anti-felt finish and which is dyed or printed, characterized by the combined use of a continuous shrink-proof and anti-felt finish process with a continuous dyeing process or printing process without Application of intermediate drying of the wool. 2. The method in particular according to claim 1 with a Krumpfeeh- and anti-felt finish with natural and synthetic
Polymers, characterized in that at the same time as the treatment liquor - in the case of two-bath applications with the second treatment liquor - dyes are also applied for the anti-shrink and anti-felt finishing. 3 · The method according to claim 2, characterized in that in the solvents or distribution agents of the treatment liquor used dissolved or dispersed dyes, the are afraid of wool fibers. 4. The method according to any one of the preceding claims, characterized in that that a carbonation treatment is connected to the continuity process. 5 * Method according to one of the preceding claims, characterized in that a carbonization treatment is the continuous process is upstream. ■ - - 2 1 0 9 8 1 7/1 5 5 6 1635093 6. Device for performing the method according to one of the previous claims, characterized by the combination of the following individual units known per se: a) a material feed device, e.g. a box feeder with loose wool or a pot or jug or wrapper arrangement in the case of tops or a bobbin take-off device for yarn, etc. ■ b) an impregnation device, which in particular consists of a Foulard, preferably gusseted foulard with an underneath Goods storage, e.g. a slide and / or a conveyor belt or consists of a suction drum bath, c) at least 2 baths, in particular suction drum baths, for Rinsing and neutralizing, d) a padder or suction drum bath for the application of dye liquor, e) a heat treatment chamber for dye fixation, which e.g. consists of a J-box or a band damper, f) at least two, preferably three to four baths, in particular Suction drum baths for washing out the unfixed Dyes and auxiliaries and for rinsing, g) a dryer, preferably a sieve drum dryer, h) a depositing or winding device, i) press rolls after each wet treatment unit and j) a common control device, preferably a direct current control device. - 3 109817/1556 :. - - η. ■, ■ / ■■ ■.; ■ .. ■■ ■ ■; 7. Apparatus according to claim 6, characterized by the upstream connection a continuous carbonation device which is connected to the common control device. and which preferably uses a suction drum as an impregnation bath) ad owns » .. ". Apparatus - for going through the procedure according to one of the previous ones Claims, g-,. , characterized by:. ■ a) a material supply device, b) one or more drinking devices for separate or common Application of the treatment liquor, e.g. with soluble monomers or polymers and the dye liquor, if necessary with catalysts and auxiliaries, which the monomers or Convert polymers into insoluble polycondensates or polymers ,. c) a heat treatment chamber, preferably with a steam atmosphere and optionally auxiliary vapors and / or a 'catalyst for fixing the dye and, if necessary, for crosslinking and fixing the resin, ψ d) at least two baths, preferably suction drum baths, for washing out the non-fixed components and the auxiliaries, e) .a dryer, preferably a sieve drum dryer, f) a common control device and a device for material _{deposition t} 9. Device according to one of the preceding claims, characterized in that that the padder to apply the treatment liquor the anti-shrink and anti-felt equipment has a plastic slide or another acid-resistant material, which at its lower end slightly curved upwards is. 1098 17/1556 blank