DE2544494A1 - METHOD AND DEVICE FOR CONTINUOUS MERCERIZATION OF A TEXTILE TRAIL - Google Patents

Description

^ Method and device for continuous kercerization a textile web ".

The invention relates to a method for the continuous kercerizing of a textile web, in which the textile web is passed through a vacuum and immediately thereafter over rollers of a caustic bath. - The invention also relates to an apparatus for performing this method.

It is known to continuously guide the web of material through an alkaline bath for mercerising in order to subsequently remove the To allow lye to react on the textile web with free movement of the goods, whereby the web of material shrinks, i.e. jumps in, to then to be stabilized. - In another known mercerizing process, the material web is also used impregnated to then with further constant supply of liquor a reaction time under fixed system to be exposed to rollers, which in turn is followed by stabilization with a chain or roller. With these well-known Mercerization process is the absorption capacity of the material web

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limited by the fact that after a certain exposure time Lye on the web, the fibers swell and this prevents further penetration of the caustic into the web will.

It has therefore been proposed (DT-OS 1.610.990) to expose the material web to a negative pressure before it is introduced into the caustic bath, whereby the web of material is guided directly from the vacuum chamber into the caustic bath. When using this procedure For the purpose of reacting the lye absorbed with the fibers, the material web was passed through a lye bath passed through to saturation of the fibers of the web to reach.

This is where the invention comes in. It aims to create a method in which not only a shorter treatment time of the goods is achieved, rather simplification in the design of the device used can be achieved should, namely the shortening of the device, furthermore the elimination of a recirculation circuit and the cooling of the circuit led lye.

To achieve this aim, the invention provides a method of the type described at the outset, in which the material web is guided through the caustic bath to a maximum of "o see, then from the last bath roller in bound web guide 30 60 see over a row of rollers bath-free likewise in bound

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Varenbarjifführung is led and then stabilized. The lye bath has the usual concentration and temperature.

The invention is based on the idea that, depending on the type of textile, swelling of the fibers of the textile material occurs after a maximum of 1 o sec, which prevents further noteworthy absorption of lye by the material web. The web is therefore completed after the said period, in which a maxirale CCER approximately aaxinale Low liquor and penetration of the fiber core ti.:* guided in bound Varenbahniührung from the last roll to the first roll of the äes bath badfreien row of cylinders, where the material web is also exposed to a reaction and action time of the alkali in a bound material web guide, with the possibility of jumping in or shrinking of the material web being excluded.

The apparatus for performing the method provides c.z5 a lye bath in a known manner (DT-CS 157 257} partly is the first roller of a Vakuu ^ üaaube enclosed, is immersed in the alkaline solution. Eei such a device

should the dDS bath have at least three types, the ratio of the number of rolls in the bath to the rolls in the bath. ¹ :.

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Sa the lye bath only absorbs a relatively small amount of lye, caustic cooling can be omitted, as is a circulating cycle for the caustic. - Since the row of reaction rollers as vertical roller column can be designed, there is also a significant space saving opposite Rows of rollers.

The drawing shows an embodiment of a device shown according to the invention.

The material web W runs in the direction of the arrow P over a row of Vorv; =! - zen 1 and d an infeed roller 2 ir, a * ³ vacuum appe 31 as described in more detail in DT-CS 2.157.257 and with its lower section immersed in a lye bath 4 in the container 5. ? ^T ach cen. Wrapping around the roller 6, which the V ^ kuunikappe is pressed by the pressure cylinder 7 with the interposition of the material web wall, this is guided directly Lye is passed through the Pöhre 11,12 onto the web. The passage of the same through Ä.eri Eehälters 5, ie the lye bath lasts a maximum of 10 seconds.

After leaving the roller 10, the material web also arrives in a bound guide between the squeezers that form a pinch Rollers 13,14, to directly on the first roll15 of a vertical Reaction roller column 16 to be passed that out two vertical parallel rows 17, 18 of rollers 19 are formed, the web of material being bath-free and without the addition of lye

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is passed directly from a Valze 19 to the next VaIze.

The reaction section is attached to the vertical column horizontal section 2o to which the stabilizing part 21 adjoins.

Vie the drawing shows is. the lye bath is very short and only extends over the length a. It has a small content and v. is only open on four rollers, while the reaction part has an ur The number of Vi-I ζ er. of the reaction part is at least 3 to 6 times as large as that of the Leugen bath.

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Claims (4)

254U94 Company Kleinewefers Industrie- Düsseldorf, the Z. * o. 1375 Company GmbH My file No. 5252a W / Fe P a_t_e_n_t_a_n_s_ £ _r_ü_c_h_e Process for the continuous mercerization of a textile web, in which the textile web through a vacuum and directly is then passed over rollers of a caustic bath, characterized in that the material web is a maximum of 1 ο sec is guided through the lye bath, then from the last bath roller in a bound web guide 3o - 60 seconds is also guided in bound - ¥ apenbahnführuBg over a row of rollers bath-free and then stabilized. 2) Device for performing the method according to claim with a first roller of a caustic bath partially enclosing vacuum hood which is immersed in the caustic bath, characterized in that the caustic bath has a maximum of three Valzi'n and the ratio of the number of caustic solutions "bacv.alzen ru the rollers of the functional roller row is at least 1: 3 to "·: β . 3) Device according to claim 2, characterized in that the row of reaction rollers is behind as a vertical column of rollers the horizontal lye bath is formed. 4) Device according to claim 2 and 3, characterized in that a squeezer is arranged between the lye bath and the row of reaction rollers. 7098U / 0563