JPS58144165A - Continuous print dyeing of fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is designed to improve the dyeability of the dye when feeding the fabric, on which the dye has been preliminarily suspended, into a high-pressure steamer for dyeing. This invention relates to a continuous dyeing method for fabrics.

Currently, as a means of fixing (dying) the dye on a fabric with dye applied to a predetermined pattern, the applied 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 high humidity heat.

However, although conventional high-pressure steamers are designed to maintain high humidity and heat, the inside of the steamer tends to be in a dry heat state.
It is difficult to maintain sufficient heat inside the steamer can, and it takes a relatively long time (for example, 2 to 3 minutes) to fix the dye due to the lack of humidity, resulting in high-speed dyeing and There was a problem that it was difficult to dye.

In addition, in order to compensate for the lack of moist heat during the moist heat treatment in the high-pressure steamer, it is conceivable to add a large amount of moisture to the cloth to be fed into the high-pressure steamer. When the fabric is subjected to the pressure of the seal D-rule on the inlet side of the high-pressure steamer, some of the lysate dye is transferred to the surface of the seal D-ru, and the mirror seal O-ru may be stained or damaged. There is a problem that the liquid is squeezed out by pressing the chives. 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 was a lack of rapidity in dyeing.

For this reason, the present inventor proposed a method for dyeing zurichito fabric in which a high-temperature liquid is applied to a dye-rich fabric fed into a high-pressure steamer in order to speed up the dyeing properties of the kuzurichito fabric. However, this method had the problem that the dye on the fabric was likely to fall off because the heat was applied to the fabric too early.

The present invention has been made in view of the above circumstances, and the purpose of the present invention is to provide a novel method for dyeing with polyurethane, which is novel and has good color fastness.

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 L, and 3 is a fabric outlet, and the fabric inlet 2 and the fabric outlet 3 are provided with strain absorbing roses. An introduction-side sealing mechanism 5 and an exit-side sealing machine a6 are attached via 4. These sealing mechanisms 5.6 are provided to allow the fabric to be introduced and taken out while maintaining high humidity and heat inside the steamer can body 1.
includes a pair of seals 51 that are pressed against each other, a vacuum chamber 52 provided on the side of the inlet 2 from these seals 51, and a vacuum chamber 52 provided on the side of the inlet 2 from the vacuum chamber 52. A fabric passage 53 extending to the side and the decompression chamber 5! A gas supply pipe 54 for supplying internal pressure gas, and this gas supply pipe 54
The pressurized gas to be caused to flow into the decompression chamber 52 is first brought into contact with the seal 1 ml 51, and the seal 1 ml 51 is cooled by the gas pressure before flowing into the decompression chamber 52. It has a guide wall 55. The other outlet side sealing mechanism 6 also includes a pair of seals 61 that are pressed against each other in the same way as the introduction side sealing mechanism, and a companion slow cooling liquid tank 62 that is formed in a substantially J-shape on the side. A liquid supply pipe 63 for supplying a slow cooling liquid that also serves as cleaning into the slow cooling liquid tank from outside the steamer, and a slow cooling liquid from this liquid supply pipe 63! 6
First, let the liquid flow into the sea, '3mm ON/6
The cooling liquid tank 62 is provided with a guide wall 64 through which the liquid is allowed to flow into the slow cooling tank 62 after being brought into contact with the liquid and cooled by the temperature of the liquid. 7 is the steamer can body 1. The fabric guide rolls are arranged in a staggered manner in the upper and lower portions, and the fabric guide rolls include three decisee adjustment rollers 8.

Reference numeral 9 denotes a humidifying tank located approximately in the center of the steamer can, and the heated liquid (hot water) in the slow cooling liquid tank 62 is supplied into the humidifying tank 9. Instead of the humidifying tank 9, a chisel boat that sprays hot water may be used to impart humidity to the fabric. 11 is a cloth 10 pulled out from the humidifying tank 9, and a steam blowing bay for keeping the inside of the steamer can in a steamed state is provided. 13 is a steamer can. This is a drip-proof plate that prevents dew from the steamer can from dripping onto the fabric lO that is transported inside the body.

Next, to describe its function, steam is blown into the steamer can body l from the steam heat blowing pipe 12, pressurized gas is supplied from the gas supply pipe 54 into the decompression chamber, and from the liquid supply pipe 63. Cold water is supplied into the slow cooling liquid tank 62 to cause the seal mechanisms 5 and 6 to perform a sealing action, thereby maintaining the inside of the steamer can 1 in a high pressure, moist heat state of 100C to 160C.

Therefore, a dye is applied to the surface of the fabric by a resealing means, and the resealable fabric 10 is dried and supplied into the steamer can 1 through the introduction side sealing mechanism 5. The fabric IO is guided and transferred to guides 0-1%, 7 and 8 in the steamer can, and during this guide transfer, the fabric IO coated with the dye is moved 1-3 times as the dyeing progresses.

When the dye is fixed in this way, the fabric is immersed in a heated liquid and heated, thereby changing the arrangement of the dye molecules (crystals) on the fabric 10, making it uniform over the entire surface of the fabric. This allows you to obtain deep, deep-dyed fabrics.

As described above, the main point of the present invention is to supply a fabric, for example, a fabric with a dye applied to its surface, into the can of a high-pressure steamer and steam it, thereby dyeing the fabric with the dye. After that, the fabric is humidified again.

That is, the fabric 1O which has been dyed and is in a dry state.
Immediately after the dye is supplied into the steamer can 1 and the dye is dyed, the heated liquid is applied to the fabric again, so that the free molecules in the dye molecules that were once fixed to the fabric change their arrangement. Since the dyeing is evened out, the dyeing is uniform, and a good dyed fabric with depth when seen with the naked eye can be obtained.

The fabric dyed in this way is dyed again by three strokes of steel, and then washed and slowly cooled in the slow cooling tank before being led out of the stay 7 can body.

As described above, in the present invention, a fabric coated with a dye is supplied into a steamer can in which high pressure and moist heat is maintained, and the dye is applied to the fabric by this steamer can. After fixing, hot water is applied in the same steamer can to homogenize the dye on the fabric, and then the fabric is dyed by 1-3 rinsing. Since this is a dyeing method, the dye that is once fixed is transferred to the areas where the dye is not reaching due to the secondary humidifying action inside the stay 7 can, and the dye is uniformly distributed over the entire surface of the fabric. Because they are arranged in a uniform pattern, they have the effect of producing extremely good zurikito dyeing.

[Brief explanation of drawings]

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... Parameter 5... Inlet side seal mechanism 51... Seal 1 ml 0-ru 52... Decompression chamber
53...Fabric passage 54...Gas supply pipe
55...Guide wall 6...Output side sea L mechanism 61.
・・Seal comb 0-ru 62 ・・Low cooling liquid tank 63
...Liquid supply pipe 64...Idle wall 7-...Fabric guide 0-ru 8...Tightness adjustment 0-shi 9...Humidifying tank 10...Fabric 11...Shinogi rod 12. ...Steam blowout pipe 13...Drip-proof plate.

Claims (1)

[Claims] A fabric coated with a dye is supplied into a steamer can where high-pressure latent heat is maintained, and then steamed.
After the dye is fixed on the fabric by this steaming, hot water is applied in the same steamer can to homogenize the dye on the fabric, and then steaming is performed again to dye the fabric. Nozurishito continuous dyeing method.