DE2823688A1 - METHOD AND DEVICE FOR CONTINUOUS COLORING OF A TEXTILE RETAIL - Google Patents

Description

DIPL.-PHYS. F. FINALLY germering May 30, 1978

DIPL.-PHYS. F. FINALLY POST BOX, D - 8O34 GERMERING TELEX: 52 I73O PATE

My file: S-4456

Applicant; Sando Iron Works Co .; Ltd., No. 4-4-5, Usu, Wakayama-shi, Wakayama-ken, Japan

Method and device for the continuous dyeing of a textile web

The invention relates to a method for the continuous dyeing of a thick web of textile material according to the preamble of claim 1 and a device for performing this method.

'For dyeing carpets it is known to be an endless one Manufacture tape by sewing the ends of the carpets and turn the tape into a rope for the purpose of reducing its width To bring shape. In the known method, a treatment takes place at an elevated temperature in a humid atmosphere, the textile material being repeatedly immersed in a dyeing liquid will. In order to dye carpets with a width of 4 to 5 m in such a device, the web must be brought into a round cross-sectional shape. However, there is a risk of uneven coloring. In order to avoid such errors, the textile material to be dyed must be repeatedly dipped into the dyeing liquid. Through this is a relatively long treatment time for coloring

809850/0845

necessary. It is also very difficult to make carpets homogeneous to be colored, because in this known method the extent of coloring changes per unit of length.

For dyeing textiles, it is also necessary to immerse this in hot water so that the dyeing in takes place in a humid atmosphere at an elevated temperature. It is therefore customary to use the textile material provided with dye in to heat boiling water. However, such methods are not suitable for mass production because the treatment time is too long is necessary if the temperature during the moist treatment is below 100 ° C.

It is therefore the object of the invention to provide a method of the type mentioned at the outset while avoiding it as far as possible to improve the disadvantages and difficulties mentioned in such a way that a considerably shorter treatment time for coloring is required. Furthermore, the method should be able to be carried out as cost-effectively as possible and a device for carrying it out of the method, it is possible to specify the device for which the shortest possible start-up time is required. This task will in a method of the type mentioned at the outset according to the invention solved by the subject matter of claim 1. Advantageous further developments of the invention are the subject of the subclaims.

In summary, therefore, the essential features of the invention are in a process for continuous dyeing To see a thick web of textile material made of carpets or similar textile material in it, the textile material was just spread out an endless belt is conveyed, which has an upwardly rising area, in order to ensure an even distribution of coloring liquid to allow. Dye liquid is uniformly applied to the textile material from a storage tank, which is conveyed through the endless belt. In a treatment chamber there is a moist treatment at a tea temperature between 100 and 110 ° C in order to apply the dye to the textile to fix, in the chamber a number of orphans are arranged, so that the textile goods are transported free of tension

809850/6845

can be tiert, whereby it is only in contact with the transport rollers comes with the side to which no staining liquid has been applied. There is a facility in the treatment chamber provided for the automatic control of the slack of successive sections of the textile web. About the throughput speed To be able to increase the length of the textile material path even further, a number of steam nozzles can be provided along the path of movement of the textile material path in the treatment chamber, through which steam is sprayed onto the textile material.

The invention is intended to be based on the drawing, for example are explained in more detail. Show it:

1 and 2 are longitudinal sections through two exemplary embodiments of a device for carrying out a method according to the invention.

In the first embodiment shown in Fig. 1, an endless belt 1 is provided, which preferably consists of Rubber or a plastic material that does not absorb liquid. However, it can also consist of an endless belt a felt material can be used. The endless belt 1 is arranged over a drive roller 2 and guide rollers 3. The ribbon 1 runs first along a horizontal track 1 'and then along a rising track part 1 "with an incline angle of about 45 °. Subsequently, the path of movement of the endless belt 1 runs downwards into a containing washing water Tank 4, in which guide rollers 5 and air nozzle tubes 6 are arranged, in order to carry out a thorough cleaning of the belt To effect washing water in the tank 4. By means of nip rollers 7 and 7 ', water is removed from the tank 4 emerging belt 1: A sponge roller 8 is used to wipe the belt 1.

The endless belt 1 is used to transport a textile material web 10 into a treatment ^{chamber 12. A spray nozzle 9 is arranged along the horizontal part I 1 of} the movement path of the belt 1 in order to apply a treatment agent such as sodium alkylate or an ester of fatty acid and sulfuric acid to the surface of the

809850/0345

VD

Spray on textile material in order to increase the penetration capacity for Increase staining liquid. A tank 11 for applying coloring liquid is arranged behind the spray nozzle 9.

In the treatment chamber 12, guide rollers 13 to 13 _fi for transporting the web of textile material are arranged in an upper region. The surface of each roller 13 is densely populated with needles, so that good frictional engagement with the textile web can be achieved. The rollers 13 are driven independently of one another with the aid of a drive device (not shown). In a lower area of the treatment chambers 12 there are sensor rods 14 to 14 _fi , to which switches 15 to 15 _{O are} assigned.

X- ο

At the outlet for the textile web 10, a water-containing tank 16 is arranged, which is used to seal the treatment chamber 12. There is a sealing device at the inlet of the textile web 17 provided. Due to this seal, a pressure can be maintained in the treatment chamber 12, which is slightly higher than atmospheric pressure. A steam pipe 18 is arranged on the underside of the treatment chamber 12, are provided on the outlet openings for water vapor.

The method of operation of the device shown will be explained in more detail below. The textile web 10 is off relatively »wide carpets and is made up just placed on the endless belt 1 and conveyed through this into the treatment chamber 12. Before entering the treatment chamber 12 the carpet surface is sprayed with the treatment agent through the spray nozzle 9, before coloring liquid overflowing from the tank 11 onto the entire surface the textile material web is applied. The treatment agent to be sprayed on through the spray nozzle 9 can, however, also be the Coloring liquid in the tank 11 can be added. Through the endless belt 11, the textile web Io will rise along the. promoted the area 1 ", creating a more even distribution the dye liquid is achieved before the textile material web enters the treatment chamber 12.

809850/0845

In the treatment unit 12 transported over the rollers 13 Textile web hangs freely between the rollers, which slack, however, is kept to a predetermined extent, so that allowable tensions of the textile material web not be exceeded. As already mentioned, the upper side of the textile material web, which is impregnated with dyeing liquid, reaches not in contact with the surface of the rollers 13.

in the treatment chamber 12, the dye is on the Textile material fixed in a humid atmosphere by means of a temperature treatment. When the slack of the textile web increases One point becomes too large, for example the feeler rod 14 is pivoted clockwise so that the switch 15 is closed will. As a result, the speed of the roller 13 is increased, so that the slack at this point to the permissible extent is decreased. When the sag is reduced, the feeler rod 14 is pivoted again in the counterclockwise direction, see above that the switch 15 is opened, whereupon the roller 13 rotates again at its normal speed. With the rest Sensor rods result in a corresponding mode of operation. After the textile material web 10 exits from the treatment chamber 12 Through the sealing water tank 16, the textile material web is transported further to a subsequent treatment stage.

With such a device can therefore be a thick Textile web can be transported with a large width in a flat state. Therefore, an even application of the Dye liquid take place along the entire surface of the textile material web. After the coloring liquid has been applied a movement of the textile material web along an ascending railway line to ensure uniform penetration of the dye liquid to enable. During the transport through the treatment chamber, the guide rollers do not come into contact with the surface impregnated by coloring liquid.

During the transport on the endless belt, the coloring liquid is applied progressively in such amounts that it can be absorbed by the textile material. In the subsequent ascending course of the web, the coloring liquid becomes

809850/5848

evenly distributed over the entire surface of the textile, to enable homogeneous coloring. After that, the material undergoes a heat treatment in a humid atmosphere without the impregnated surface coming into contact with the guide rollers. That is why the textile can be colored homogeneously in a continuous process. In this method, the impregnated with coloring liquid Textile goods can be transported through the treatment chamber within 5 minutes. For example, if the treatment chamber allows the inclusion of a textile web of carpets of 50 m in length, the textile can with a speed of 10 m per minute can be transported. The coloring can therefore be carried out at a relatively high transport speed take place.

In order to enable a further increase in the transport speed, devices for spraying steam onto the transported textile material web can be provided in the treatment chamber, so that a temperature of about 105 ° C. can be maintained there. The embodiment shown in Fig. 2 shows the arrangement of such steam nozzles 19 in the treatment chamber. The steam nozzles 19 are arranged along the transport path of the textile material web IO in the treatment chamber 12 in order to spray steam under excess pressure, while the textile material web is transported sagging between the rollers 13 over them. The sprayed-on steam fixes the dye contained in the textile material through reactions which, due to the action of the steam, take place at a relatively high reaction rate. Since the treatment chamber 12, the sealing means 17 is sealed by the tank 16 and the temperature in the treatment chamber by supplying a sufficient amount of steam through the nozzles 19 at a temperature between 100 and 11O ^Q C may be maintained. As a result, in comparison to the exemplary embodiment in FIG. 1, the treatment time can be reduced to approximately half the required treatment time.

The required device is also characterized by economic efficiency, because it is only a relatively simple one

809850/0845

Sealing device with sealing gaps is required. Even though the described embodiments the coloring of When it comes to carpets, the device is also suitable for other treatment processes can be used, for example to reduce the weight, felting or the like usual treatment methods for textile goods.

809850 / Q845

Claims (1)

Claims 1. Process for the continuous dyeing of a thick textile material web of carpets or similar textile goods, thereby marked ichnet that the dye liquid on the textile material web transported in a flat, spread-out state is applied that the textile material web then is conveyed along a rising track area in order to ensure a homogeneous distribution of the coloring liquid throughout the whole To enable textile material, and that then the textile material web tension-free through a treatment chamber via conveyor rollers is transported, in which treatment chamber the textile material surface treated with dye liquid is not used with the guide rollers comes into contact and in which treatment chamber a treatment in a humid atmosphere at a Temperature between 100 and 110 C takes place. 2. The method according to claim 1, characterized in that steam in the treatment chamber the textile web is inflated. Device for carrying out the method according to claim 1 or 2, characterized in that for conveying the textile material web (10) a treatment chamber (12) an endless belt (1) with an upwardly rising web area (1 ") is provided that a tank (11) for supplying dye liquid to the surface of the textile material in front of a sealing inlet (17) of the treatment chamber (12) is arranged that in the treatment chamber a number of guide • 809850 / Θ845 rollers (13) is arranged, the surfaces of which are studded with needles and which are not impregnated with the dye liquid Attack the underside of the textile web in order to make it free of tension and sag between the rollers through the treatment chamber (12) to transport, and that a mechanism (14) for automatic control of the length of the slack Areas of the textile web provided for a predetermined length during transport through the treatment chamber is. 4. Apparatus according to claim 3, characterized in that steam nozzles (19) along the path of movement of the textile material web (10) through the treatment chamber (12) are arranged to steam on the impregnated with dye liquid during transport through the treatment chamber To apply to the surface of the textile material web. 809850/0845