JP3236395B2 - Dyeing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for dyeing a material containing cellulose fibers.

More specifically, the present invention relates to an apparatus for dyeing a cellulosic fiber-containing material having a high dyeing rate without dye bleeding or uneven dyeing in printing or continuous dyeing with a reactive dye.

[0003]

2. Description of the Related Art In printing or continuous dyeing of a cellulose fiber or the like using a reactive dye, the cellulose fiber or the like is usually printed with a printing paste containing the dye or padded with a dye solution containing the dye and dried. After that, a method of performing steaming or dry heat treatment is widely used. At this time, a method is adopted in which urea is added in advance to the printing paste or the dye liquid, and the action of the urea promotes the fixation and coloring of the dye to the fiber in the steaming or drying treatment step.

However, urea containing a nitrogen atom is difficult to remove at the time of drainage, and if mixed into a river or the like, causes eutrophication.

In the above-mentioned dyeing method, a fiber material (hereinafter, also referred to as a fabric) is printed or impregnated with a printing paste or a dye solution containing no dye fixing agent (hereinafter, simply referred to as a fixing agent). A method of impregnating a solution containing a fixing agent after drying (hereinafter, simply referred to as a fixing solution) and performing post-steaming is adopted.

As a method of impregnating the dough with the fixing liquid,
After immersing the dough in a bath containing a fixing liquid, a method of squeezing with a pressure roller (application method with a padder), a method of applying with a foam, a method of applying with a spray, and the like are included. However, it is difficult to control the non-uniform application of the fixing liquid and the amount of the non-uniform fixing liquid. Therefore, a general padding method is used.

By the way, in the steaming heat treatment after the application of the fixing liquid, the moisture absorption of the dough (weight of absorbed moisture / weight of dried dough ×
100), for example, in the case of cotton satin, 60%
If the ratio exceeds the above range, problems such as occurrence of bleeding of the dye during the steaming treatment and reduction of the dye fixation rate occur. In addition, since the moisture in the steam during steaming adheres to the surface of the dough and increases the moisture content of the dough, the moisture absorption of the dough before steaming should be as low as possible without impairing the fixation of the dye. Is desired.

In order to meet the above demand, the present inventors have carried out printing or impregnation with a printing paste or a dye solution comprising a reactive dye containing no dye fixing agent, and then continuously transported the dried cellulose fiber-containing material. Cellulose fiber comprising a fixing device, a fixing liquid applying device for applying a solution containing a dye fixing agent to the dried cellulose fiber-containing material, and a steaming device for steaming the cellulose fiber-containing material to which the fixing solution has been applied. In an apparatus for dyeing a material containing a fixing liquid, the fixing liquid applicator includes an endless accompanying strip which is conveyed in the same direction as the conveying direction of the cellulose fiber-containing material, and a fixing liquid impregnation for impregnating the endless accompanying strip with the fixing liquid. Department and
A fixing liquid impregnating amount adjusting section for adjusting the amount of the fixing liquid impregnated in the endless accompanying strip, and a fixing liquid for bringing the endless accompanying strip into which the fixing liquid is impregnated into the dried cellulose fiber-containing material being transported under pressure. An application has been filed for an apparatus for dyeing a cellulose fiber-containing material having a contact portion, but such an apparatus has the following problems.

That is, in the invention of the prior application, as shown in FIG. 1, for example, an endless trailing belt-like material 2 impregnated with a fixing liquid in a liquid tank 1 is provided with a desired liquid content by a pressure-squeezing device 3. After that, the liquid-containing cloth is brought into contact with the cloth 5 to be processed by the contact pressure of the liquid supply roll 4, and the fixing liquid (processing liquid) contained in the trailing belt-like material 2 is dyed. The treated fabric 5 to which the fixing liquid has been transferred and impregnated is then supplied to the steaming device 6 and subjected to a predetermined wet heat treatment, whereby the desired dyeing treatment is performed. Done. On the other hand, the endless trailing belt-like material 2 after transferring the fixing liquid to the cloth 5 to be treated is circulated without being supplied into the steaming device 6 and repeatedly immersed in the liquid tank 1,
The fixing liquid is held again, and comes into contact with the cloth to be treated 5 again to apply the fixing liquid to the cloth to be treated.

[0010]

However, in an apparatus for applying a fixing liquid to a cloth to be treated using such an endless trailing belt, the trailing belt 2 is endless,
In order to repeatedly contact the cloth to be treated 5 to which the dye has been applied, a part of the dye of the cloth to be treated 5 adheres to the surface of the accompanying belt-like material 2 when the cloth 5 to be treated is in contact with the cloth. The accompanying strip 2 is soiled. By bringing the contaminated accompanying belt-like material 2 into contact with the cloth 5 to be treated again, the dye on the accompanying belt-like substance 2 is attached to the cloth to be treated 5 in the opposite direction. This causes a problem of soiling (contamination).

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and passes the accompanying belt-like material after coming into contact with the cloth to be treated, through a wet heat treatment chamber for wet heat treating the treated cloth. At the very least, the fouling dye attached to the trailing band is hydrolyzed by the moist heat in the wet heat treatment chamber to lose its function as a dye, so that even when the trailing belt comes into contact with the cloth to be treated again, It is an object of the present invention to provide a dyeing apparatus capable of preventing stains on a cloth to be treated due to a dye attached to the accompanying belt-like material.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

In FIG. 1, reference numeral 11 denotes an endless belt-like accompanying belt-like material.
Is a cloth made of, for example, polyester or polypropylene, which is not stretchable and has excellent liquid retention properties. The accompanying belt-like material 11 is, for example, a fixing liquid 12 used for fixing a reactive dye or a building dye. Tank 1 filled with
3. Next, a liquid application amount adjusting roll 14 for adjusting the liquid content of the fixing liquid 12 impregnated in the accompanying strip 11 in the liquid tank 13, and then the trailing strip 11 whose liquid content is adjusted. And a pressure roll 16 for bringing the fixing liquid impregnated in the accompanying belt-like material into the treated cloth 15 by contacting the treated cloth 15 with the reactive dye or the building dye, for example. And then the pressure roll 16
After passing through, the fabric is separated from the cloth to be treated 15 and guided by guide rolls 18 that guide the inside of the inlet of the wet heat treatment chamber 17 to be circulated endlessly. A large number of guide rolls 19 for transferring the fabric 15 to be treated under no tension are arranged in the chamber wet heat treatment chamber 17, and steam is blown out to keep a desired steam atmosphere in the wet heat treatment chamber 17. Tube 20 and its wet heat treatment chamber 1
Inside the entrance of 7, an endless transport belt 21 for pulling up the cloth to be treated 15 with no tension is provided.

The construction of the present embodiment has been described above. Next, the operation of the embodiment will be described.
1 is immersed in the fixing liquid 12 in the liquid tank 13 by the driving force of the guide roll, is adjusted by the liquid application amount adjusting roll 14 so as to have an appropriate liquid holding amount, and is then guided to the pressure roll 16. . On the pressure roll 16 on which the trailing belt-like material 11 containing an appropriate amount of the fixing liquid is guided, the cloth to be treated 15 to which the dye is applied by, for example, a printing means is also guided at the same time. Accompanying belt 1
1 and 2 are pressurized at a desired pressure by the pressure roll 16, and the fixing liquid applied and impregnated to the accompanying belt-like material 11 is transferred to the cloth 15 to be treated.

The cloth to which the proper amount of the fixing liquid has been transferred is separated from the accompanying belt-like material 11 and is pulled up by the endless belt 21 under no tension to be supplied into the wet heat treatment chamber 17. Moist heat treatment room 1
The dye applied to the cloth 15 to be treated reacts with the fixing liquid due to the heat generated in the cloth 7, whereby the cloth to be treated is completely dyed.

On the other hand, the trailing belt-like material 11 after the fixing liquid has been transferred to the cloth 15 to be treated by the contact pressure of the pressure roll, is separated from the cloth 15 to be treated, However, the dye attached to the trailing belt 11 to be supplied and receiving the wet heat, that is, the trailing belt 11 is applied to the cloth 15 to be treated by contact with the cloth 15 to be treated. The dye to which a part of the dye is transferred and attached is hydrolyzed by the above-mentioned wet heat,
The function as a dye is lost.

Therefore, even if the accompanying belt-like material 11 rotates endlessly and repeatedly comes into contact with the cloth 15 to be treated, the accompanying belt-like material 11 is overheated immediately after being separated from the cloth 15 to be treated. Then, the dye transferred to the accompanying strip 11 is hydrolyzed and the function of the dye is lost, so that even when the accompanying strip comes into contact with the cloth to be treated again,
Problems such as white spot contamination (fouling) of the cloth to be treated by the accompanying belt-like material can be prevented beforehand.

FIG. 3 shows that the cloth to be processed, which has been pulled up and supplied by the pulling rolls 22 in the wet heat treatment chamber 17, is hung on an endless belt 21. This is to allow the roll 19 to be timely and without tension in order to pass it over.

[0019]

As described above, the present invention provides a liquid applying means for impregnating a predetermined amount of a processing liquid into an endless trailing belt-like material,
The transfer-applying means for bringing the liquid-applied accompanying strip into contact with the cloth to which the dye is applied, and causing the processing liquid contained in the accompanying strip to transfer-apply to the cloth to be processed,
The treatment cloth to which the treatment liquid is transferred is subjected to a wet heat treatment chamber for separating and performing the wet heat treatment with the accompanying belt-like material, and the accompanying treatment belt-like material separated from the treatment cloth is subjected to wet heat treatment in the above-mentioned wet heat treatment chamber. Since the dyeing apparatus has a guide roll for hydrolyzing the dye attached to the accompanying belt-like material, the accompanying belt-like material 11 is rotated endlessly, and the cloth to be treated 15 is repeatedly rotated. However, the dye transferred to the accompanying belt-like material 11 is hydrolyzed by the overheating treatment immediately after the accompanying belt-like material 11 is separated from the cloth 15 to be treated, so that the function of the dye is reduced. Because of the disappearance, even if the accompanying belt-like material comes into contact with the cloth to be treated again, an effect is obtained that problems such as white spot contamination (staining) of the cloth to be treated with the accompanying belt-like material can be prevented.

[Brief description of the drawings]

FIG. 1 is a structural explanatory view showing a dyeing apparatus of a prior example.

FIG. 2 is a structural explanatory view showing a dyeing apparatus according to an embodiment of the present invention.

FIG. 3 is a structural explanatory view showing a dyeing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Endless accompanying belt-like material 12 ... Fixing liquid 13 ... Liquid tank 14 ... Liquid application amount adjustment roll 15 ... Fabric to be processed 16 ... Pressure roll 17 ... Wet heat treatment chamber 18 ... Guide roll 19 ... Guide roll 20 ... Steam ejection pipe 21 ... Conveyer belt 22 ... Pulling roll

Continuation of the front page (72) Inventor Miteru Yamato 4-45-5 Usu, Wakayama-shi, Wakayama Prefecture Inside the Yamato Iron Works Co., Ltd. (72) Inventor Hiroshi Ishitetsu 4-4-5 Usu, Wakayama-shi, Wakayama Prefecture Shandong Co., Ltd. Inside the ironworks (72) Inventor Koji Yamato 4-4-5 Usu, Wakayama-shi, Wakayama Prefecture Inside the ironworks, Yamato Corporation (56) References JP-A-50-112564 (JP, A) JP-A-6-49780 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06B 23/30 D06B 3/10 D06B 21/00

Claims (1)

(57) [Claims] 1. A liquid applying means for impregnating a predetermined amount of a processing liquid into an endless trailing belt, and the trailing belt to which a liquid has been applied is brought into contact with a cloth to be treated to which a dye has been applied. Transfer imparting means for imparting a transfer of the treatment liquid contained in the object to the cloth to be treated, and a wet heat treatment chamber for subjecting the treatment cloth to which the treatment liquid has been imparted a transfer and a wet heat treatment separately from the accompanying belt-like material, What is claimed is: 1. A dyeing apparatus comprising: a guide roll for hydrothermally treating an entrained belt separated from a cloth to be treated in the above-mentioned wet heat treatment chamber to hydrolyze a dye attached to the entrained belt.