JPS6227185B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to simultaneously dye a printed fabric on the back side of the printed fabric by feeding it into a high-pressure steamer and dyeing it with a plain color on the back side of the printed fabric. This relates to a method for printing and dyeing plain colors at the same time.

Currently, as a means of fixing (dying) the dye on a fabric that has been printed with dye in a predetermined pattern, the printed fabric is continuously fed into a high-pressure steamer where high-pressure, moist heat is maintained. It has been proposed to fix the dye under

However, although conventional high-pressure steamers are designed to retain high humidity and heat, the interior of the steamer tends to be in a dry heat state, making it difficult to retain sufficient moisture and heat inside the steamer. In particular, it takes a relatively long time (for example, 2 to 3 minutes) to complete dye fixation due to lack of humidity, making it difficult to achieve high-speed dyeing and high-quality dyeing.

In addition, in order to compensate for the lack of moist heat during the moist heat treatment in the high-pressure steamer, it is possible to add a large amount of moisture to the printed fabric to be fed into the high-pressure steamer, but in this case, the printed fabric containing humidity may When subjected to the nip pressure of the seal roll on the inlet side of the high-pressure steamer, a portion of the printing dye is transferred to the surface of the seal roll, resulting in staining of the seal roll or the liquid being squeezed out by the nip pressure. Furthermore, when a fabric containing humidity at room temperature is fed into a high-pressure steamer, it takes some time for the room-temperature fabric to be heated to approximately the same temperature as the temperature inside the high-pressure steamer, and the fabric's temperature increases. That is, there were cases in which dyeing was not fast enough.

In addition, in conventional dyeing methods, if print dyeing is performed on the front side of the same fabric and plain dyeing is performed on the back side of the same fabric, print dyeing or plain dyeing is performed in the first dyeing process, and then in the second dyeing process. Because it is either plain dyed or printed dyed, it requires two dyeing processes, which doubles the heat energy, water resources, labor costs, etc. required for dyeing, resulting in high costs. There was also the problem of dyed cloth.

The present invention has been made in view of the above, and its first purpose is to infuse a high-temperature liquid into a dye-printed fabric fed into a high-pressure steamer in order to speed up the dyeing properties of the printed fabric fed into the high-pressure steamer. The purpose is to increase the moisture content of the fabric by applying it, thereby realizing print dyeing with good color fastness. The second purpose is to apply the high-temperature liquid as a dyeing liquid to the back side of the printed fabric fed into the high-pressure steamer, to impart sufficient humidity to the printed fabric, and at the same time dye the back side of the printed fabric with a solid color. It is.

The present invention will be explained in detail below based on embodiments shown in the drawings.

1 is a steamer can body, 2 is a fabric inlet formed in the steamer can body 1, and 3 is a fabric outlet,
An inlet-side sealing mechanism 5 and an outlet-side sealing mechanism 6 are attached to the fabric inlet 2 and fabric outlet 3 via packing 4 for strain absorption. These sealing mechanisms 5 and 6 are provided to allow the fabric to be introduced and taken out while maintaining high humidity and heat inside the steamer can body 1. The introduction side sealing mechanism 5 has a pair of sealing mechanisms that are pressed against each other. Seal rubber roll 5 ₁
and these seal rubber rolls 5 ₁ to inlet 2
A decompression chamber ₅₂ provided on the side, and this decompression chamber 5
₂ to the inlet 2 side, a gas supply pipe ₅₄ for supplying pressurized gas into the decompression chamber ₅₂ , and a gas supply pipe ₅₄ extending from the gas supply pipe ₅₄ to the decompression chamber _52.
It has a guide wall ₅₅ for allowing the pressure gas to flow into the vacuum chamber 52 to first contact the seal rubber roll ₅₁ and cool the seal rubber roll ₅₁ at the temperature of the gas before flowing into the decompression chamber ₅₂ .
Similarly to the introduction side seal mechanism, the other outlet side seal mechanism 6 also includes a pair of seal rubber rolls ₆₁ that are pressed against each other, an annealing liquid tank ₆₂ whose side surface is approximately J-shaped, and A liquid supply pipe ₆₃ is provided for supplying a slow cooling liquid that also serves as cleaning into the cold liquid tank from the outside of the steamer, and the liquid to be flowed into the slow cooling liquid tank ₆₂ from this liquid supply pipe ₆₃ is first passed through a seal rubber roll _61.
Seal rubber roll 6 ₁ at the temperature of the liquid.
It has a guide wall ₆₄ for allowing the liquid to flow into the slow cooling tank ₆₂ after being cooled.
Reference numeral 7 denotes fabric guide rolls arranged vertically in a staggered manner within the steamer can body 1, and a tension adjustment roll 8 is included in the fabric guide rolls.
It is included. Reference numeral 9 denotes a dye liquid injection nozzle for spraying and impregnating one side, for example, the back side, of the fabric 10 with the dye liquid immediately after being supplied into the steamer can. It may also be applied to the fabric. 1
1 is a receiving tank for the staining solution. Reference numeral 12 denotes a liquid tank in which the guide roll 7 disposed near the outlet of the steamer can body 1 and below is immersed;
2 is filled with cleaning hot water. 13 is fabric 1
Each time 0 is pulled out from the liquid tank 12, the levers come into contact with the fabric to squeeze the liquid, and a large number of these levers 13 are arranged so as to come into contact with the fabric each time the fabric is pulled out from the liquid tank. It is something.
14 is a steam heat blowing pipe for keeping the inside of the steamer can 1 in a steamy state, and 15 is a drip-proof plate that prevents dew from the steamer can from dripping onto the fabric 10 being transferred within the steamer can.

Next, to describe its effect, steam is blown into the steamer can body 1 from the steam heat blowing pipe 14,
Furthermore, pressurized gas is supplied from the gas supply pipe ₅₄ into the decompression chamber, and cold water is supplied from the liquid supply pipe ₆₃ into the slow cooling liquid tank ₆₂ , thereby producing a sealing action in each sealing mechanism 5 and 6. Heat the inside of steamer can body 1 to 100℃~160℃
It is maintained in a high pressure, moist heat condition at ℃. Therefore, a printed fabric 10 obtained by coating the fabric surface with a dye using a printing means and drying it is fed into the steamer can body 1 through the introduction side sealing mechanism 5.
Fabric 1 immediately after being supplied into this steamer can body 1
A dyeing solution is sprayed from a dyeing solution spraying nozzle 9 onto the back side of the fabric 10, which is then guided and transferred to guide rolls 7 and 8, and during this guided transfer, the dye-coated fabric 10 is steamed. be. The gist of the present invention is to impregnate the back surface of the fabric 10 by spraying a dyeing liquid having sufficient moisture immediately after the fabric 10, which has a dye printed on its surface, is fed into the can of a high-pressure steamer. It is. That is, the dye is printed,
Immediately after the fabric 10 in a dry state is supplied into the steamer can body 1, a dye liquid is sprayed onto the back side of the fabric, so that the moisture contained in the dye liquid is impregnated into the fabric 10, and the moisture is absorbed into the steamer can body 1. As a result of the high temperature, the fabric becomes hot and humid, and due to the high temperature and humidity, the printed dye and the dye sprayed in the steamer penetrate into the inner core of the fabric, resulting in a deep color. There is an effect that dyeing is achieved. As the fabric supplied into the steamer can becomes hot and humid, the dye applied to the fabric is dyed at a high speed, and the fabric is guided and transferred to the guide roll 7 in the high-pressure steamer. During this time (for example, around 5 seconds), the dye is completely dyed and the liquid is completely dyed.
be introduced within. Every time the fabric supplied into this liquid tank 12 is pulled out from the liquid tank 12,
3, the liquid is quickly replaced, and combined with the swelling action of the fabric due to the high temperature in the steamer, effective pre-washing is achieved.
The fabric prewashed in the liquid tank 12 is slowly cooled and further washed in the slow cooling liquid tank ₆₂ , and then led out of the steamer can and transferred to the next process.

As described above, in the present invention, immediately after a fabric coated with a dye by a printing means is supplied into a steamer can where high pressure and moist heat is maintained, a dyeing solution containing sufficient moisture does not flow onto the unprinted surface of the fabric. The moisture contained in this dyeing liquid and the high humidity heat inside the steamer can increase the printed dye and the dye contained in the dyeing liquid to the inner core of the fabric. Since it is designed to penetrate at a high speed, the dye's dyeability is enhanced by the action of high temperature and high humidity.Furthermore, the dye does not fall off and almost perfect deep color dyeing is achieved, resulting in excellent color fastness. effective.

Furthermore, according to the present invention, the dyeing liquid is sprayed onto the entire back side of the printed fabric immediately before dyeing with the print dye, so print dyeing and plain dyeing can be done at the same time, which is faster than conventional methods. This has the effect of providing a dyeing method that saves thermal energy and water resources.

Furthermore, since the temperature of the dyeing solution sprayed within the steamer can be kept constant in accordance with the constant temperature inside the steamer can, there is also the effect that uniform and stable dyeing processing can be carried out continuously from beginning to end.

[Brief explanation of the drawing]

The drawing is a sectional view showing an embodiment of an apparatus used for dyeing according to the present invention. 1... Steamer can body, 2... Fabric inlet, 3... Fabric outlet, 4... Packing, 5... Inlet side seal mechanism,
5 ₁ ... Seal rubber roll, 5 ₂ ... Decompression chamber, 5 ₃ ...
Fabric passage, 5 ₄ ... gas supply pipe, 5 ₅ ... guide wall,
6... Lead-out side seal mechanism, 6 ₁ ... Seal rubber roll, 6 ₂ ... Annealing liquid tank, 6 ₃ ... Liquid supply pipe, 6 ₄ ... Guide wall, 7... Fabric guide roll, 8... Tension adjustment roll, 9... Dyeing liquid Injection nozzle, 10...fabric, 11...receiving tank, 12...liquid tank, 13...shinogi rod,
14...Steam heat blowing pipe, 15...Drip-proof plate.

Claims (1)

[Claims] 1. Immediately after feeding the fabric coated with dye by printing means into a steamer can where high-pressure, moist heat is maintained, a dye solution containing sufficient moisture is sprayed onto the non-printed surface of the fabric to the extent that it does not flow. Or apply it, and the water contained in this dyeing solution and
A method for plain dyeing at the same time as print dyeing, which is characterized in that the printed dye and the dye contained in the dyeing solution are penetrated into the inner core of the fabric at high speed by high humidity heat in a steamer can.