DE2529301A1 - PROCESS AND EQUIPMENT FOR TREATMENT OF TEXTILES IN THE FORM OF STRIPS OR TRAILS WITH LIQUIDS OR PASTS - Google Patents

Description

Dipl.-Ing. Heinz Bardehle 9 c 9 q ο η ι

Patent attorney Z J £ O 0 U I

Monks 22, Htriwfr. 15, Tel. 292558 Postal address Munich 26, PO Box 4

Munich, July 1, 1975

My reference: P 2134

Applicant: David Moreinis-Eisen , Bogota (Colombia) Apartado Aereo 4897

Method and device for treating textiles in the form of strands or webs with liquids or pastes

-Ia- 509884/1047

• Λ *

The present invention relates to a method for treating textiles, such as yarns, in the form of Strands or webs with liquids or pastes as well as a device serving to carry out this process, the treatment according to what is more recently known as the "Sancowat process" Short liquor foam process can be done. This method is e.g. in the DOS 2.145.827 and 2.2 ^ 3.865 described. The method according to the invention can be used, for example, for dyeing, softening, applying various Equipments and washing are applied.

As is well known, the dyeing of piece goods is generally carried out using the hanging system. The material to be dyed is thereby Suspended from a row of parallel rods in a container (skid) through which the liquor flows.

A special embodiment of such an apparatus is the reel skid, which essentially consists of a large runner, over which a roller (reel) is attached. The material to be dyed becomes tubular twisted together and passed over the roll, with the lower part of the circulating material to be dyed in the liquor immersed.

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For example, the British patent specification Kr. 1.088.665 shows a reel skid with a helical one Guide member, one end of the strand to be treated being attached to a conveyor and the strand is pulled over the helical guide member.

These and similar, i.e. piece dyeing or strand dyeing machines working according to the same principle, v / irons the disadvantage that they have a relatively large water requirement, since the liquor easily has a volume of 2 to "occupies 5 m. Furthermore, it is not possible to Subject to pre-drying on the known equipment.

These disadvantages are intended to be remedied by the present invention. That is the subject of this invention forming method is characterized in that the strand or the web via at least one drive element, by a dispenser for a liquid or paste, especially a solution or dispersion of a dye or a detex ^ gens, and at least two rotatably mounted at a mutual distance and guided downstream centrifugal elements and thereby from his Web is deflected, for the purpose of the liquid or paste applied to the strand or the web in the peripheral area each centrifugal element under the influence of the centrifugal element pressure and the centrifugal force evenly

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to distribute over the strand or web cross-section and throw off the excess of liquid or paste.

the train

The strand / is expediently in time Successive via the drive element, the dispensing device and the centrifugal elements are guided, the individual centrifugal elements at different circumferential speeds rotate.

The method is advantageously carried out in a closed housing, with the strand or the web moisture can be supplied by water vapor.

The device used to carry out this method is characterized according to the invention by at least a drive member coupled to said strand or said path, at least one that is on the strand or dispensing device containing liquid or paste to be applied to the web, guide elements which hold the strand or guide the path through said substance, at least two centrifugal elements, which are in the path of movement of the strand or the web are arranged and rotatably mounted, the wrap angle of the strand or the web at each centrifugal element is at least 90, the whole for the purpose that is on the strand or the web Applied liquid or paste in the circumferential area of this centrifugal element under the influence of the centrifugal element pressure and the centrifugal force

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to be distributed massively over the strand or track cross-section and throw off the excess liquid or paste.

The centrifugal elements are preferably driven by a common drive element, e.g. a drive belt, driven, but have different circumferential lengths. The centrifugal elements are expediently as formed circular cylindrical rollers of different diameters, according to a special embodiment the diameter of the spinning rollers decrease in the direction of passage of the strand or web.

The common operating element of the centrifugal rollers can via a transmission organ, for example a endless chain to be coupled to said drive member.

According to a preferred embodiment of this device, the mean circumferential speed is

of the centrifugal elements at least ^ - (meters per minute), where L is the length of the strand or web on the device in m and η is the number of centrifugal elements.

An example of a spiral is shown in the accompanying drawing one to carry out the orrinduri ^ sgeirüissen Procedural facility illustrated.

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Fig. 1 is a schematic sectional view of such a device and

Fig. 2 is a section along the line II-II in Fig. 1.

The device shown schematically in Fig. 1, omitting insignificant details a pressure-tight housing 1, that with an insert nozzle 2 and an outlet 3 for hot air and / or steam is provided.

Within the housing 1, three parallel centrifugal rollers 4, 5 and 6 are arranged, over their circular cylindrical Urr.fan ^ s surfaces a strand to be treated or a Lahn S to be treated is performed. This strand or this web S also passes a drive roller 7 and a liquid dispenser 8, e.g. an inking device.

The rotating in the direction of arrow 9, provided with a drive motor 7 a drive roller 7 pulls the strand or the web S from the last centrifugal roller 4 and lays it down due to its oval cross-section in a loop shape. The drive of the centrifugal rollers K, 5 and 6 takes place via a common drive belt 10, the belt pulley 11 of which is coupled to the axis of the drive roller 7 via an endless chain 12.

The constructive training of the centrifugal rollers

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is shown using the example of the spinning roller 6 in FIG. The centrifugal roller 6 is a coaxial pin 6a aufj on which a drive plate 13 is torsionally rigid is attached. Preferably, the pin 6a is known Means releasably anchored in the hub of the centrifugal roller. The drive belt 10 is over the drive plate 13 of the centrifugal roller 6 out that its wrap angle is about l60 °, but at least 90 °. This condition applies to all spinning rollers used. As a result, the spinning rollers 4, 5 and 6 are carried along and rotate at a peripheral speed, many the reverse of the diameter d of the pulley I3, the diameter D is directly proportional to the spin roller. By choosing the large angle of wrap it is achieved

or the train
that the strand / remains for a relatively long time on the circumference of each Sehleuderwalzen and thus a long duration of action of the centrifugal force is achieved.

By appropriate coordination of the drive speed of the pulley 11 and the two diameters d and D can thus be achieved that the strand or the web in the intermediate area between two adjacent Centrifugal rollers 6/5 or 5/4 experiences relaxation.

In the illustrated embodiment, the strand or the web S by a dye solution or -dispersion 14 passed by being in the area of the dispenser 8 by three guide rollers

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15, ΐβ and 17 is performed. The strand or web S absorbs paraffin solution or dispersion on its circumferential surface, which is then distributed evenly over the strand or web cross-section as it passes through the spinning rollers 6, 5 and 4. In contrast to all previously known methods, this even distribution is achieved in particular by the fact that the spinning rollers rotate at a relatively high peripheral speed and both the roller pressure and the centrifugal force act on the strand or web on the periphery of the spinning rollers. Thanks to the combined effect of these two forces, the strand or web, whose radial orientation is constantly changing, is evenly penetrated by the dye solution or dispersion. The number of spin roller passes or the duration of the dyeing process carried out at high speed naturally depends on the strand or web material and the dye used, but the strand or web can in any case be observed through a sight glass. As soon as the even distribution of the dye in the strand or Web cross-section is reached, the drive speed of the motor 7a can be reduced, whereupon the dyes can be fixed.

The dyes can be fixed using one of the known methods with steam and / or hot air or by means of suitable chemicals. In the case of the

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In the second example, water vapor enters the housing 1 at 2 and leaves it through the outlet port 3

Thanks to the coordination of the strand or web tension and the peripheral speed on the spinning rollers 4, and β, there is a real pumping action when the strand or the path passes through, because the strand or the path alternately pressed on the respective spinning roller circumference and again in the intermediate area between two spinning rollers is stretched. This "timing process" ensures perfect dye distribution. The centrifugal force in turn contributes to the fact that dye particles penetrate the strand radially from the inside to the outside, while the excess of dye solution or dispersion is spun off and thus already a some pre-drying takes place.

Some water vapor is preferably continuously introduced into the housing in order to keep the strand or web moist to keep.

The filling of the dispenser 8 with concentrated Dye solution or dispersion is expediently carried out via a line 15 which is equipped with a shut-off valve Id provided and connected to a container 17. In the container 17 is the desired ParbstofflÖH-ang bzvi. -dispersion filled in before the start of the botriob.

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The speeds of the spinning rollers are chosen so that the combined effect of roller pressure and centrifugal force result in an optimal distribution of the color. When using three spinning rollers it has proved to be very advantageous if the average speed of the strand or the web in meters / minute numerically corresponds approximately to the total length of the strand or the track in meters. This results in the optimal Strand speed

^v = η '

where L is the strand or web length in the device and η is the number of spinning rollers used.

The peripheral speed is preferably

the last centrifugal roller 4 slightly above the peripheral speed the drive roller 7 held. If the centrifugal roller 4 rotates, for example, at a peripheral speed of approx. 106 m / min, the drive roller should rotate at approx. 100 m / min.

The line or web speed also depends, of course, on the type of line or web speed. Web material, the type of dye solution or dispersion (especially absorbability) and the desired Distribution of the dye solution or dispersion in the strand or Orbit cross-section.

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• Λΐ ·

The centrifugal roller plays a particularly important role in the device described. While the previously known methods and devices only know the guide roller or the squeegee roller, one appears here Completely new function, thanks to which an even distribution of liquid or dye with the smallest amount of water and simultaneous pre-drying is achieved by centrifugation. The spinning rollers 4, 5 and 6 need however, not necessarily to be designed as a circular cylinder, but could possibly also be one triangular or other, arbitrary and appropriate Own cross-section. It would also be possible to use stainless steel rods to hold the centrifugal rollers produce that would be arranged, for example, on the circumference of an imaginary cylinder and on their end faces would be held together by steel disks.

In one variant, the drive belt 10 can also be positioned directly over the circular cylindrical roller body of the centrifugal roller 6 be performed.

According to a preferred embodiment, the peripheral speeds of the rollers 6, 5 and 4 increase progressively so that the roller 6 has the highest and the roller 4 the lowest peripheral speed.

Since only a fraction of the total strand or web length is treated, the one described is required

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Facility in relation to the known systems a very low engine power.

The oval shape of the drive roller 7 according to FIG.

or the train

is preferred, because then the strand / in loop form is deposited is, but a different cross-sectional shape could also be selected for the drive roller 7. The drive roller 7 can for example consist of steel rods that are arranged on the circumference of an imaginary cylinder.

Instead of the dispensing device 8 according to FIG., An adjustable spray device could also be used, which the liquid, e.g. the dye solution or -dispersion, sprayed onto the strand or web in the desired amount.

The embodiment described with reference to FIGS. 1 and 2 has so far only been used in connection with the Application of a dye solution or dispersion to the strand or web S is explained. Basically however, the device described can also be used for washing piece goods or strands of yarn. In In this case, the strand or the web S is in a first phase at moderate speed by the with Dispensing device 8 filled with clear water. Then the dispensing device 8 with a concentrated aqueous solution of a detergent and the speed of rotation of the strand or the web

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elevated. The detergent is on the one hand when passing the spinning rollers β, 5 and 4 evenly over the The strand or web cross-section is distributed, while excess detergent is thrown off radially by the centrifugal effect will.

In a third phase, the dispensing device 8 is again filled with clear rinsing water, the excess detergent is washed out of the strand or web. Finally, the strand or circulate the web at increased speed with a completely empty dispensing device 8 in order to predry it.

In a similar way, not only dye solutions or dispersions or detergent solution, but also other liquids or pastes, the textile finishing agents contained, applied and completely or partially washed out again. Of the numerous The only possibilities here are the plasticizers, the anti-crease finishes as well as substances with an antistatic effect. In all of these cases, the strand or sheet material is used very spared, since no Qv. et should pressure on the same is exercised, with a viability nevertheless achieved can be dealing with the results of the conventional Foulard can easily be compared.

According to a variant of the method described if the spinning rollers "4, 5 and 6 are not

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drove, but v / ground from the strand (or the train) S taken, which in turn is pulled by the drive roller through the device.

To avoid "misunderstandings" be here expressly advised that the term "textiles" as used in the present context is, not only all yarns, woven and knitted goods s owle textile fiber composites, but in particular also includes carpets.

Two examples are described below to explain how the new device works.

example 1

A device with three spinning rollers was used to wash emulsion paint that was printed on, the peripheral speed of which was about 3 $ higher than that of the drive, so that the strand was not stretched when it passed through the spinning rollers quickly. The textile product to be washed consisted of 85 % secondary acetate and 15 % perlon, with an average weight of 115 S per running meter. 900 m of cloth were fed into a 5,000 liter facility at a linear speed of 170 m / min. The cloth was subjected to the following treatment:

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- ^lir -

- With a filling of I5OO liters of cold water was the cloth at full speed for 15 minutes guided through the facility.

- During a further 15 minutes, the filling of I5OO liters of water and a detergent (temperature 50 ⁰ C) was.

- This was followed by a 15-minute rinsing process with 150 liters of cold water.

When using a conventional reel skid

- each of the three phases would have required a total filling of 4500 to 5000 liters of water,

- Each phase would have taken at least twice as long and

- A lower authenticity of the product would have been achieved despite doubling the treatment time.

Example 2

For dyeing a knitted fabric made of textured polyester, a device equipped with three spinning rollers was used, the peripheral speed of the spinning rollers again being 3 fo above that of the drive in order to avoid stretching the strand. The ^ -PS variable speed motor made it possible to achieve a linear throughput speed of 175 m / min.

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It was found here that optimal results, i.e. the even distribution of the color paste in the textile strand, especially when the linear speed of the strand is in m / min numerically corresponds to at least three times the length of the line in the facility in m. If the line length is 50 m, for example, the linear drive speed should be at least 150 m / min.

For dyeing a Raschel knitted fabric made of textured polyester with an average weight of 240 g / m the following treatment was carried out:

1) Heat setting of the opened knitted fabric

2) Bringing in the dry knitted fabric

"5) Use of a dye paste, which is a printing paste is comparable and contains the normally "prescribed percentage of dye. A 10; $ - ige dye concentration, based on the weight of the knitted fabric, has proven itself.

4) The color paste is diluted with 1 to 1.5

brought into the facility. The device is then closed and started up at maximum speed. During operation, the temperature is gradually increased ^{to 110 ° C. within one hour by introducing steam.}

5) When the temperature of 110 ⁰ C is reached, the rotary

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number reduced to about a third, so that the knitted fabric was smooth when the temperature required for heat setting was reached. ^{The temperature is now increased to 130 °} C. by further supply of steam and operation is maintained at this temperature for 20 minutes.

6) The pressure prevailing in the closed device is released to Ätmosphärendruek, whereupon a according to Example 1 constructed washing process is carried out. The device described with reference to the drawing can be modified in many ways by a person skilled in the art will.

For example, it is not necessary to drive the centrifugal rollers 4, 5, β, but rather the same could also be taken through the S strand. Since the strand S at the transition from a Relax the centrifugal roller a little towards the other and, if possible, also with regard to its orientation (angular position of the outer parts with respect to the strand axis) is to change, the distance a between two adjacent centrifugal diamonds is important. This distance a should therefore never be equal to KuIl and preferably at least the sum of the two involved Match the diameter of the centrifugal roller. Then the strand-like textile structure has the opportunity to to turn something between two centrifugal rollers, v; obei himself rl "io Walton

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-K-

For the sake of order, it should be specifically pointed out that the object of the invention is not Dehydration of the strands, but the uniform and rapid distribution of the dye at a very short time Fleet is. In the process described, it is not just the centrifugal effect that is used, but rather it above all there is constant migration of the dye. from one strand fold to the other. The position of the strand folds changes constantly and so there is the advantage that over the entire width an intensive and rapid distribution of the dye is guaranteed with the least amount of liquor consumption.

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Claims (1)

\ l) jProcess for treating textiles in form of strands or webs with liquids or pastes, characterized in that the strand or web over at least one drive element, through a dispensing device for a liquid or paste, in particular a solution or dispersion of a dye or a detergent, as well as at least two rotatable at a mutual distance mounted and downstream centrifugal elements is guided in its direction and thereby deflected by its or / or its, for the purpose of uniformly spreading the liquid or paste applied to the strand or the web in the circumferential area of each centrifugal element under the influence of the centrifugal element pressure and the centrifugal force across the strand or web cross-section to distribute and throw off the excess liquid or paste. 2) Method according to claim 1, characterized in that the strand or the web in time Successively on the drive member, the dispensing device and the centrifugal elements is guided and the individual Spin elements rotate at different peripheral speeds. 3) Method according to claim 1, characterized in that the strand or the web through the drive member is pulled by the sling elements, which are loosely rotatably mounted in this case. 509884/1047 4) Method according to 'claim 1, characterized in that that the strand or the web is driven both by the drive member and by the in this case Slingshot is moved. 5) Method according to claim 1, characterized in that the same thing done in a closed housing and the strand or * the web by water vapor Moisture is supplied. 6) Method according to claim 1 for dyeing of textiles in the form of strands or webs, characterized in that the dispensing device is a dye solution or dispersion contains and the dye after dyeing by steam, hot air or a mixture of both or is fixed by adding chemicals. 7) Method according to claim 1 for washing of textiles in the form of strands or webs, thereby characterized in that the dispensing device in chronological order water, a detergent solution and finally again water is fed, whereupon the strand or the web in a final phase the device at increased Speed without adding any liquid or paste. 8) Facility for carrying out the procedure according to claim 1, characterized by 509884/1047 - at least one drive element coupled to the said train or said track, - at least one dispensing device containing the liquid or paste to be applied to the strand or web, - Management bodies that lead the way through the pass the said liquid or paste, - At least two centrifugal elements, which are arranged in the path of movement of the strand or the path and are rotatably mounted, wherein - the wrap angle of the rope or the track on each sole element element is at least 90 °, - the whole for the purpose of the liquid or paste applied to the strand or the web in the circumference The area of this centrifugal element under the influence of the centrifugal element pressure and centrifugal force Distribute evenly across the strand or track cross-section and throw off the excess liquid or paste. 9) Device according to claim 8, characterized in that that the centrifugal elements (4, 5, 6) are loose are rotatably mounted and through the strand or the track (S) are driven. 509384/1047 10) Device according to claim 8, characterized characterized in that the centrifugal elements (4, 5, 6) through a straight drive element, preferably a drive belt (10), are driven, but have different circumferential lengths. 11) device according to claim 10, characterized in that that the centrifugal elements are circular cylindrical rollers (4, 5 * 6), with the drive element (10) leading sections of the spinning rollers have different diameters (d). 12) Device according to claim 11, characterized in that that the diameter of said sections (13) of the centrifugal rollers (4, 5, 6) in the direction of passage of the strand or the web (S). 13) Device according to one of claims 11 or 12, characterized in that the common drive element (10) the centrifugal rollers via a transmission element, for example an endless chain (12) is coupled to said drive member (7). Ik) device according to claim 8, characterized characterized in that the same is arranged in a pressure-tight housing (l) and can be connected to a steam source. 15) Device according to claim 8, characterized in that the mean circumferential speed of the centrifugal elements is at least ^ _n = (meters / minute) 509884/1047 carries, where L is the strand or web length located on the device in meters and η is the number of Slingshot is. 16) Device according to one of claims 10 to 15, characterized in that each centrifugal element torsionally rigid with an exchangeable, coaxial drive member, for example a belt pulley (13) is. 509884/1047 Empty soap