JP2007009353A - Method and apparatus for continuous dyeing and finishing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for continuous dyeing and finishing, by which in continuously dyeing and finishing a woven fabric, etc., facilities and a process are simplified, water retention necessary for dyeing and temperature retention necessary for high dyeing are accurately carried out and short-time dyeing effect and stable finish are attained. <P>SOLUTION: In the continuous dyeing and finishing of a fiber structure, the fiber structure F is padded with a dyeing liquid, an aluminum pipe thermally sprayed with ceramic for radiating far-infrared radiation is disposed as a heater in a steamer A, similarly a cylinder having irradiation force of far-infrared radiation is arranged in a high heat treatment part B, superheated steam is passed through the heater 4 or the cylinder 5, the superheated steam is released in the steamer A or the high heat treatment part B while radiating irradiation energy of far-infrared radiation and high-temperature steaming treatment is carried out at 100% superheated steam under normal pressure in an air-free state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a continuous dyeing method and apparatus for textile structures such as textiles, and more specifically, in the above continuous processing, superheated steam and far-infrared radiation energy are used in combination to improve drying efficiency in dyeing and to perform dyeing in a short time. The present invention relates to the continuous dyeing processing method and apparatus which can be realized.

  In continuous dyeing of textiles and the like, in recent years, a dyeing solution is padded with a reactive dye, and then dried, and then padded again with a chemical solution composed of an alkali color former, soda ash, sodium sulfate, etc., and then dyed by steaming. The process method pad, dry, chemical pad, and steaming are mainly used, and some cold pad batch methods are also used. Advances have been made in methods that utilize superheated steam or far-infrared radiation energy.

Of course, it has been conventionally known to individually use superheated steam or far-infrared radiant energy. For example, in Patent Document 1, after a dye solution is padded, steaming by microwave dielectric heating is performed, and coloring of the dye is performed. When fixing, a method has been proposed in which preheating is performed by letting hot water vapor pass through the far-infrared radiation region in the course of continuous conveyance to the steaming heat treatment section, and the heating efficiency is shortened by shortening the heating time. For example, Patent Document 2 proposes that after dyeing a textile product, the dye is fixed using superheated steam.
JP-A-56-169852 JP-A-52-132178

  However, each use of the above conventional superheated steam and far infrared rays is effective for fixing dyes and improving drying efficiency, but it is still used for short-time dyeing effects only by using them individually. It was not sufficient, and equipment for preliminary drying after the dyeing pad was also required.

  The present invention addresses the above situation and finds an effective combination of superheated steam and far-infrared radiation to complete the dyeing pad and dyeing in one step and to supply and maintain moisture necessary for the dyeing process. In addition, the purpose is to accurately maintain the temperature necessary for high dyeing and to obtain a uniform temperature distribution and achieve stable continuous dyeing.

  That is, the present invention that achieves the above object relates to a continuous dyeing process, and in the continuous dyeing process of a fiber structure, after the dyeing liquid is padded, 100% of superheated water vapor at normal pressure is free of air. The basic feature is that high-temperature steaming is performed in combination with far-infrared radiation energy.

  Claims 2 to 4 are specific embodiments of the combined use of superheated steam and far-infrared radiant energy in the above basic features, and claim 2 is a thermal spraying of a ceramic made of alumina, titania and nickel oxide that emits far-infrared rays. An aluminum pipe is installed in the steamer as a heater, superheated steam is passed into the heater, the temperature inside the steamer is increased while releasing far-infrared radiation energy, and the superheated steam exiting the heater is released into the steamer. An embodiment in which high-temperature steaming is performed in the absence of air of 100% superheated steam at normal pressure. Claim 3 is a method in which a ceramic made of alumina, titania and nickel oxide that emits far infrared rays is sprayed and the surface is coated with a fluororesin. Multiple cylinders in the high heat treatment section, which is a closed area, Together with passing into the cylinder, an aspect of performing high-temperature steaming process in the absence of superheated steam of 100% of the air in the release to normal pressure superheated steam at a high thermal processing.

  According to a fourth aspect of the present invention, after the dyeing liquid is padded, the steamer provided with the heater according to the second aspect and the high heat treatment portion provided with the plurality of cylinders according to the third aspect are sequentially arranged and passed. Each is characterized in that the high-temperature steaming treatment is performed in the absence of air with the combination of far-infrared radiation energy and superheated steam 100%.

  A fifth aspect of the present invention is a preferable temperature of the superheated steam that is passed through the heater or cylinder in the continuous dyeing process, and is 400 to 500 ° C. Note that claim 6 is a specific example of the fiber structure subjected to the continuous dyeing process, and the continuous dyeing process is applied to any of yarn, woven fabric and knitted fabric.

  A seventh aspect of the present invention is a configuration of an apparatus that performs the above-described continuous dyeing process, and includes a padder for padding a dye solution and a first high-temperature steaming process for a fiber structure to which the dye solution is applied by the padder. Or / and comprising a second high-temperature steaming section, the first steaming section radiating far-infrared rays, and an aluminum pipe sprayed with a ceramic made of alumina, titania and nickel oxide is disposed in the steamer as a heater, and the heater It is a steamer that passes superheated steam at 400 to 500 ° C. inside and releases superheated steam that has exited the heater into the steamer, and makes the steamer 100% superheated steam free of air, and the second steaming part is A ceramic made of alumina, titania and nickel oxide that emits far infrared rays is sprayed and the surface is covered with a fluororesin. Cylinders deployed on internal processing unit, characterized in that it is a high thermal processor to the absence of treatment portion of superheated steam of 100% air with passing superheated steam 400 to 500 ° C. in the cylinder.

  In the present invention, an aluminum pipe sprayed with a ceramic composed of alumina, titania and nickel oxide is provided in a steamer as a heater or in a high heat treatment part as a cylinder, and superheated steam at 400 to 500 ° C. is passed through it, and the higher Far-infrared radiant energy is used for rapid dyeing, and superheated steam is discharged into the steamer, and dyeing and drying with 100% superheated steam that does not contain air proceeds.

  In this case, for example, a superheated steam generator capable of instantaneously raising the steam at 130 to 140 ° C. to 400 to 500 ° C. when a dyeing solution having a drawing ratio of 60 to 65% is attached to the dyed cloth and enters the steamer. The superheated steam generated in step 1 reaches 100 ° C within 1 second, and at the same time, condensed water is generated in the fabric. While the fabric has moisture, the fabric temperature is kept at 100 ° C so that the moisture necessary for dyeing can be maintained. The supply and the temperature required for high dyeing can be accurately maintained.

  According to the present invention, a high-temperature superheated steam at 400 to 500 ° C. is provided by using an aluminum pipe sprayed with ceramics radiating far-infrared rays as a heater in a high heat treatment section, or a cylinder sprayed with the ceramic in a high heat treatment section. In addition, the steaming process is performed in an atmosphere of 100% superheated steam that does not contain air by discharging the superheated steam to the steamer or the high heat treatment part, so that the temperature rise and maintenance in the steamer or the treatment part can be achieved. The dyeing and drying department of the process before dyeing in the two-step method is unnecessary, and dyeing is completed in one step of the dyeing pad and high-temperature steaming. The dyeing process time is shortened and energy saving and high efficiency are achieved. Significant effects are expected for current small lots, diversification, and short cycle continuous dyeing.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing an example of an apparatus for performing continuous dyeing processing according to the present invention. A fiber structure F such as cotton fabric drawn out from a supply unit 1 is sent out through a guide roll, After impregnating the dye liquor 2 and squeezing the dye liquor with the squeeze roll 3, the dye liquor is sequentially sent to the steamer A and the high temperature heat treatment part B. Using a superheated steam generator capable of instantaneously raising the temperature to 400 to 500 ° C., this high temperature superheated steam is passed through the steamer A and the high heat treatment part B, and far infrared radiation energy is radiated in the steamer A and the high heat treatment part B. While maintaining and raising the temperature in the room, the superheated steam is discharged into the steamer and the processing section, and 100% of the superheated steam at normal pressure is free from air. Then, high-temperature steaming is performed, and the products are sequentially sent backward to perform a series of continuous dyeing processes of the present invention.

  As shown in the figure, the steamer A has an aluminum pipe sprayed with ceramic made of alumina, titania and nickel oxide that emits far-infrared rays having a wavelength of 5 to 10 microns as a heater 4, and a large number of heaters are arranged in the steamer. Constructed, meandering fabric and the like up and down, passing through the heater, while aiming to increase and maintain the temperature in the steamer while emitting far-infrared radiation energy, and discharge the high-temperature superheated steam from the heater into the steamer, In the steamer, high-temperature steaming processing is performed in the absence of air of 100% superheated steam at normal pressure.

  On the other hand, the high heat treatment part B, like the steamer, sprays ceramics made of alumina, titania and nickel oxide that emits infrared rays, and the cylinder 5 having far infrared radiation force whose surface is coated with fluororesin is closed. In the same manner, superheated steam is sent into the cylinder 5 to raise and maintain the temperature in the high-temperature processing chamber while emitting far-infrared radiation energy, and further, superheated steam is discharged into the processing section B. Processing is achieved through high temperature steam drying in the absence of 100% superheated steam air at normal pressure.

  In the illustrated example, both the steamer A by the heater of the aluminum pipe and the high heat treatment part B by the cylinder are arranged in order, and the fiber structure F is subjected to continuous dyeing processing. In combination with far-infrared radiation energy, high-temperature steaming of 100% superheated steam without air at normal pressure can be performed in combination with far-infrared radiant energy. Processing can be accomplished in one step as a chemiractor to perform.

  Thus, as described above, when a dyeing solution having a drawing ratio of 60 to 65% is applied to a textile structure such as a woven fabric and enters the steamer or high-temperature heat treatment section, the temperature reaches 100 ° C. in one second or outside, and at the same time, condensed water is applied to the woven fabric or the like. While the fabric has moisture, the fabric temperature is kept at 100 ° C., which accurately maintains the moisture supply necessary for the dyeing process and the temperature required for the high dyeing. None, the effect of completion of short-time dyeing is demonstrated.

Example 1
The dyeing liquid by the following compounding example was provided with respect to the cotton fabric, and the dyeing liquid pad was performed.

Dyeing liquid formulation example Reactive dye X g / L
Soda ash 20 g / L
Anti-reducing agent 3 g / L
Immediately after the dyeing pad, 100% of superheated steam without air at normal pressure is passed through a high heat treatment section consisting of an aluminum pipe with far-infrared radiant power as a heater, followed by a cylinder with far-infrared radiant power. When 180 ° C. steaming was performed in combination with far-infrared radiation energy, dyeing was completed in 30 seconds.

When repeated several times in the same manner, the completion of dyeing was confirmed in 60 seconds at the maximum.
Example 2
Next, in accordance with the above-mentioned Example 1, a dye solution containing a necessary reducing agent, a chemical agent, etc. is blended with a vat dye, sulfur dye, etc. in a one-step method, and each dye solution is also padded and 180% of superheated steam 100%. When steaming at 0 ° C. was used in combination with far-infrared radiation energy, it was confirmed that dyeing was completed in 20 to 30 seconds.

Comparative example

  In the first step according to the conventional two-step method, the dyeing solution consisting of the dye Xg / L, the migration inhibitor 10 g / L, and the reduction inhibitor 10 g / L is padded and pre-dried. In the second step, a chemical solution consisting of 40 g / L alkali color former, 20 g / L soda ash, and 200 g / L sodium sulfate was padded and dyed with a color developing steamer. However, it took 1 minute at 100 ° C. until dyeing by the steamer treatment, and 3 minutes in total.

  From the comparison of the above examples and comparative examples, the present invention does not require a migration inhibitor 10 g / L, an alkali color former 40 g / L, and a sodium sulfate 200 g / L, which not only has a resource saving effect but also simplifies one process. By doing so, the time to complete the dyeing was shortened, and it was proved that it can sufficiently cope with the small rods and diversification currently required.

It is a figure which shows the outline | summary of the continuous dyeing | staining processing apparatus which implements this invention.

Explanation of symbols

A: Steamer B: High heat treatment part F: Fiber structure P: Padder 1: Fiber structure supply part 2: Dyeing tank 3: Drawing roll 4: Heater (aluminum pipe)
5: Cylinder

Claims (7)

  In continuous dyeing processing of fiber structures, continuous dyeing is characterized by performing high-temperature steaming treatment in combination with far-infrared radiation energy in the absence of air with 100% superheated steam at normal pressure after padding the dyeing solution Processing method.   An aluminum pipe sprayed with ceramics made of alumina, titania and nickel oxide that emits far infrared rays is installed in the steamer as a heater, superheated steam is passed through the heater, and the temperature inside the steamer is emitted while radiating far infrared radiation energy. The continuous dyeing processing method according to claim 1, wherein the superheated steam discharged from the heater is released into the steamer and is subjected to a high-temperature steaming process in the absence of air of 100% superheated steam at normal pressure.   A plurality of cylinders whose surfaces are coated with a fluororesin sprayed with ceramics made of alumina, titania and nickel oxide that emit far infrared rays are placed in the high heat treatment section, and superheated steam is passed through the cylinder and superheated in the high heat treatment section. The continuous dyeing processing method according to claim 1, wherein the high-temperature steaming treatment is performed in a state where 100% of superheated steam at normal pressure is released without releasing steam.   After the dyeing liquid is padded, the steamer provided with the heater according to claim 2 and the high heat treatment part provided with the plurality of cylinders according to claim 3 are sequentially passed, and far infrared radiation energy and superheated steam 100% The continuous dyeing | staining method of Claim 1 which performs a high temperature steaming process in the state without air by using together.   The continuous dyeing processing method according to any one of claims 1 to 4, wherein superheated steam at 400 to 500 ° C is passed through a heater or a cylinder.   The continuous dyeing method according to any one of claims 1 to 5, wherein the fiber structure is a woven fabric or a knitted fabric made of natural fibers, chemical fibers, or a mixture of both fibers.   A continuous dyeing processing apparatus for a fiber structure, comprising a padder for padding a dye solution, and a first and / or second high-temperature steam for performing a high-temperature steaming process on the fiber structure to which the dye solution has been applied. It consists of a teaming part, and the first steaming part radiates far-infrared rays, and an aluminum pipe sprayed with ceramic made of alumina, titania and nickel oxide is used as a heater inside the steamer, and the heater is overheated at 400-500 ° C. A steamer that passes superheated steam and releases superheated steam from the heater into the steamer, and makes the steamer 100% superheated steam free of air, and the second steaming part emits far infrared rays. And a cylinder coated with a ceramic made of nickel oxide and coated with a fluororesin. Department deployed inside, continuous dyeing apparatus which is a high-thermal processing unit to the absence of treatment portion of superheated steam of 100% air with passing superheated steam 400 to 500 ° C. in the cylinder.

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