KR870002078B1 - Dyeing method and its equipment - Google Patents

Abstract

The invention relates to a method and an apparatus for fixing a dye on a fabric applied with the dye or for desizing, scouring, bleaching and dyeing a cloth applied with a liquid mixture of chemicals. The method includes: 1) introducing a cloth treated with a dye for coloring and fixing into the atmosphere of overheated vapour; 2) having the cloth contact with a heat-carrying vessel or pass near the vessel to fix the dye on the cloth. The atmosphere is determined by the property of the raw cloth. The apparatus includes a steamer, a conveyer for passing the cloth through the steamer and a heat- carrying vessel.

Description

Dyeing method and device

1 is an explanatory diagram showing an embodiment of the present invention;

FIG. 2 and FIG. 3 are characteristic curve diagrams used in the description of the present invention, respectively.

* Explanation of symbols for the main parts of the drawings.

7: fabric 25: indeed steam chamber 31: heat capacity

In the present invention, dyeing, fabrication, bleaching, and dyeing of fabrics in which dyes or fabric combinations of dyes treated with dyes to be fixed and adhered to fabric are attached. The present invention relates to a method and an apparatus.

Generally, the method of carrying out these methods includes the steaming method, the high-pressure steaming method, the thermosol method, and the super-heated vapor method.

For example, in the case of dyeing the fiber, a process of color development fixing of the dye is required during the processing process, and the fixing requires an environment of constant temperature and moisture.

This color fixing apparatus, or steamer, is generally classified into a high pressure type (HPS) used in the high pressure steaming method and a high temperature type used in the superheated steam method, that is, a high temperature steamer (High Temperature Steamer). , HTS).

In the former case, since the latter is not mainstream, the latter is mainstream, but in order to obtain high-performance fixation in dyeing treatment of the fabric, the production equipment is extremely large (remaining amount of fabric such as 400m, etc.) for short time treatment. The reduction of the floor area occupied by the fixing device, the reduction of the light-heating ratio, the loss, etc. is required, and rapid dyeing and rapid HTS with low energy cost are desired.

For example, in the case of a conventional dyeing facility such as one auto and a handprint 3-10 pages, the yield of 8 hours per day is 3000-4000m. The fixing process of the printing material is treated with HTS close to 400m. If the material is made of polyester, it takes 70-90 minutes at 40m / min.

In this case, for example, when the two materials of polyester and cotton are processed, the superheated steam zone is extremely large enough to hold up to 400 m. Along with the problem that a huge land area for a production facility is required, the cost of the facility is extremely high.

Therefore, especially in small and medium-sized printing factories, the introduction of such a device is a difficult reality. On the other hand, various problems can not be avoided by the outsourcing of the deadlocking process.

Similar problems are found in grass mining, sterling, bleaching, and dyeing.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object of the present invention is to provide a dyeing method and a device by using a high efficiency treatment machine with good productivity and small productivity, while at the same time minimizing the apparatus when producing fabric. .

Next, an embodiment of the present invention will be described with drawings by using dyeing as an example.

1 shows one embodiment of a dyeing treatment apparatus for carrying out the dyeing method, which is one embodiment of the present invention, in which the dyeing treatment apparatus is roughly a feeding apparatus 1, a fixing apparatus 3, and a takeout apparatus 5; Has)

In the feeding device 1, a dye 7 is printed on the bleach, or a raw material 7 such as polyester, for example, a pad is installed as a wound body 9, for example. The fabric 7 treated with the dye to be colored and fixed from the wound body 9 is introduced into the fixing device 3 via the guide 11.

The fixing device 3 has a thread 15 which houses the endless conveyor 13 at the bottom thereof, and the fabric 7 is connected to the lower chamber 15 from the inlet 17 of the lower chamber 15. Guided into and introduced onto the endless conveyor 13.

This endless conveyor 13 is a felt conveyor of glass fiber, for example, and has a special coat (Teflon coat).

In the lower chamber 15, the endless conveyor 13 is supported by a plurality of guides 19 so as to move in the right rotation in the drawing. The width of the endless conveyor 13 is set to, for example, 150 cm so that the fabric 7 can be placed.

In the fixing device 3, a buffer zone 23 and a superheated steam chamber 25, which will be described later, are formed on the lower chamber 15 by the heat insulating wall 21.

The buffer bath 23 and the superheated steam chamber 25 are separated by a plate 27.

In the superheated steam chamber 25, a plurality of feed guide rolls 29 are provided in the upper portion of the superheated steam chamber 25. For example, four feed rolls 29 are provided in the upper portion of the superheated steam chamber. A plurality of (31) (hereinafter referred to as heating rolls) are provided side by side in the example of illustration.

The position where the heating roll 31 is disposed is not limited to this, and may be in the buffer bath 23.

The endless conveyor 13 arrives in the buffer bath 23 through one of the slit-shaped holes 33 provided between the lower chamber 15 and the buffer bath 23, and again the superheated steam chamber 25. Through the inlet 35 of the driving guide roll 29 and again to the heating roll 31 to reach the heating roll 31 in the superheated steam chamber 25 alternately as described above the plurality of driving guide furnace wool 29 and As shown in the drawing, the heating rolls 31 pass through the buffer tank 23 again to the outlet 37 of the superheated steam chamber 25 to pass through the other through hole 39 on the slit. It is an endless structure made to return to the said lower chamber 15 through this.

The endless conveyor 13 is driven by the driving guide roll 29.

Thus, the fabric 7 introduced on the endless conveyor 13 from the inlet 17 of the lower chamber 15 is led by the endless conveyor 13 into the superheated steam chamber 25 by the path and again overheated. It is drawn out of the steam chamber 25.

The superheated steam chamber 25 forms a superheated steam bath by the superheated steam method described above, and is provided with a heater such as an electric heater 41, a circulation fan 43, and a fan suction duct 45 at a lower portion thereof.

The heating roll 31 is selected such that its diameter is relatively large, for example 5-20 cm, and the surface thereof is teflon coated and the fabric 7 introduced by the endless conveyor 13 directly touches the surface.

That is, the endless conveyor 13 is driven on the surface of each driving guide roll 29 at the angular driving guide roll 29 side, but the fabric 7 at each heating roll 31 side is driven. Will be reached directly.

As described above, the fabric 7 which has dispersedly contacted the heating rolls 31 and passed through the atmosphere of the superheated steam is colored and adhered to the dye, and is fixed from the outlet 47 of the lower case 15 to the fixing device ( 3) Induced out.

The above-mentioned take-out apparatus 5 winds up the fixed fabric 7a processed as mentioned above to the winding body 53 through the guides 49 and 51. As shown in FIG.

An example of the dyeing method by the dyeing treatment apparatus of the said structure is demonstrated.

The temperature of the superheated steam bath can be adjusted according to the fiber material of the fabric 7 supplied between approximately 100-200 ° C. In addition, the superheated steam generating mechanism in the superheated steam method was provided. The primary pressure of live steam was 5.0 kg / cm 2, and the control pressure (ejection pressure) was 1.5 kg / cm 2. And the electric heater 41 as a heating mechanism used the thing of 50 kw.

The temperature of the heating roll 31 was between room temperature and -200 ° C, but was selected according to the fiber material of the fabric (7).

For example, in the case of the raw material 7 of polyester, when the superheated steam temperature was 180 +/- 2 degreeC, the temperature of the heating roll 31 was 185 degreeC.

Moreover, in the case of the raw material 7 whose material is cotton, when the former was set to 120 +/- 2 degreeC, the latter was set to 127 degreeC.

Similarly, when the raw material was cotton, the former was 105 ° C and the latter was 160 ° C.

The heating roll 31 may be heated in the natural room by the superheated steam chamber 25. For example, the heating roller 31 may be provided with a suitable heater means, for example, through a fluid of required temperature, and forced heating by using a variable temperature control roller. Or may be cooled.

As described above, the case in which the heating roll 31 is disposed in the buffer bath 23 is the same as above.

In addition, the retention amount of the raw material 7 of the heated steam bath, that is, the length from the inlet of the superheated steam chamber 35 to the superheated steam chamber outlet 37 through each driving guide roller 29 and the superheated roll 31 is 10 m. It was set as.

In addition, the contact pressure between the fabric 7 and the heating roll 31 was 0.2-2.0 kg / cm 2. This contact pressure may be applied by pulling the overheat roll 31 side downward.

In addition, the occupied floor area of the apparatus is 3m × 4m = 12m 2.

In the dyeing method using the apparatus, in the illustrated example, an endless felt conveyor 13 made of glass fiber is placed on the conveyor 13, that is, a fabric, that is, the fabric 7, is rotated by a driving guide roll 29. In this way, the treatment cloth is dispersed in contact with the lower heating roll 31 so as to cause color fastening in an atmosphere of superheated steam.

In the conventional roll-etching method, the processed yarn or the knit system leaves the problem of tactile elongation in terms of tension, but according to the dyeing method, the conveyor 13 and the processing cloth are not synchronized at all, and the processing cloth (cloth) and the heating roll ( By adjusting the contact pressure with 31), the shrinkage and elongation rate within the treatment can be adjusted within ± 0-5% so that wrinkles and relaxation within the treatment can not be seen at all.

Furthermore, since the internal retention of the treated fabric (cloth) was about 10 m and the superheated steam cloud was compact, it was excellent in temperature raising and temperature-lowering ability. From the 100 ° C saturation treatment, for example, the superheating time of 180 ° C was as follows.

In addition, the point of contacting the processing cloth to the heating roll 31 can eliminate the point of transfer, contamination and color stain by the special coout and contact pressure control as described above, and the adsorption of porous solid By repeating acceleration, high-speed processing of both polyester and cotton is possible.

Next, the coloring effect by the dyeing method will be described in more detail.

2 and 3 are graphs showing relative concentrations (ratios) in the case where the raw materials are polyester and cotton, respectively.

In FIG. 2, l21 is the HPS described above, l22 is the conventional HTS, l23 is the thermosol method, and l24 is the relative concentration (ratio) when the dyeing method of the present invention is used. It is indicated that the curve l24 according to the present invention as the large treatment time (minute) curve is excellent in both the concentration and the treatment time compared to other methods because the relative concentration (ratio) becomes almost 100 at the treatment time of 60 to 120 seconds. .

3 is a characteristic diagram in the case of cotton, where l31 is the HPS and l32 is the curve of the respective relative temperature (ratio) versus processing time (minutes) in the case of the dyeing method of the present invention, as in the case of 60-120. It is shown that the relative concentration (ratio) becomes almost 100 in seconds.

Thus, according to the above-mentioned dyeing method, the surface concentration of HPS level can be obtained in a short time, and it became rapid HTS.

The above has been described in detail by taking dyeing as an example, but if the conditions such as temperature, moisture, etc. are applied to the extraction, refining, bleaching, and dyeing of the fabric attached to the fabric combination solution, it can be easily carried out. will be.

As described above, according to the apparatus of the present invention, it is possible to speed up the work, and the apparatus therefor can be a high-performance processor having a small size and a small occupied installation area, and the superheated steam cloud becomes compact. The action effect peculiar to the present invention can be exhibited by changing the temperature of the above-mentioned clouds, namely, temperature rise and temperature drop in a short time, such as when changing the material to be used.

Claims (2)

The fabric treated with the dye to be fixed by color is introduced into the superheated steam atmosphere according to the material of the fabric, and the fabric is brought into contact with or in proximity to the heat capacitor disposed in or near the superheated steam atmosphere. Dyeing method characterized in that the color fastening. The superheated steam chamber in which the superheated steam atmosphere is selected according to the material of the fabric treated with the chemical combination solution, and the fabric and the fabric for introducing the fabric into the superheated steam chamber and passing through the superheated steam atmosphere. And a heat capacitor disposed in or near the superheated steam for contact or proximity.

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