KR101297820B1 - Processing method of a binder when taking dye cellulose-based fabric by using reactive dyestuff - Google Patents

Abstract

PURPOSE: A treatment method of a fixing agent using a reactive dye when a cellulose-based fiber is dipped is provided to minimize the use of essential alkaline chemicals for optimal fixation of a dye when the cellulose-based fiber is dipped and to maintain pH stability. CONSTITUTION: A treatment method of a fixing agent using a reactive dye when a cellulose-based fiber is dipped comprises the steps of refining, depositing, wetting, dispersing, dyeing, treating with an accelerating agent, treating with the fixing agent, washing, soaping, and drying. The step of treating with the fixing agent comprises the steps of: adding 0.5-0.6 g/L, 1.0-1.1 g/L, and 2.0-2.1 g/L of primary sodium carbonate in light color, medium color, and dark color, respectively, for preventing rapid increase of pH concentration; and maintaining for 10-15 minutes, adding sodium hydroxide several times, and dyeing for 10-100 minutes. The sodium hydroxide is added in concentrations of 0.5-0.6g/L, 1.0-1.1g/L, and 2.0-2.1 g/L in light color, medium color, and dark color, respectively, 4-5 times. [Reference numerals] (AA) Refine; (BB) Prepare; (CC,HH) Shorten processes; (DD) Dye; (EE,FF,GG) Wash; (II) Minimize manual metering; (JJ) Maximize the use of an automatic supply device; (KK) Effect of reducing cost by 50% or more; (LL) Acquire pH stability; (MM) Acquire color reproducibility

Description

Processing method of a binder when taking dye cellulose-based fabric by using reactive dyestuff}

The present invention relates to a method for treating a cellulose-based fiber dyeing agent using a reactive dye that maintains pH stability while minimizing the use of an essential alkali agent for optimal fixation of the dye during cellulose-based fiber dyeing using a reactive dye.

In general, the dyeing method of cellulose-based textile fabrics can be largely divided into continuous dyeing, dyeing, cold pad batch (hereinafter referred to as CPB).

Continuous dyeing has been activated mainly in textiles in the past 60s and 70s, mainly in textiles, but only a part of it is currently maintained due to reduced demand and loss of price competitiveness. Is applied to some knitted fabrics, but due to the expensive equipment and technical risks, only a few companies are using them, and most of them are used mainly in small and medium-sized textile companies. In most cases, dyeing is the most common dyeing method used by most cotton fabric manufacturers. to be.

 In particular, the dyeing is to use a reactive dye during the dyeing process to use an alkali agent to fix the dye when dyeing using the reactive dye, the alkali agent used in this case has been used sodium carbonate. The sodium carbonate is a basic alkali raw material in all fields such as glass industry, soap detergent, food industry, paper industry, chemical industry and textile industry, and its usage amounted to 48.8 million tons per year as of 2010. (Source: Soda Ash: Market outlook to 2015 , 11th edition 2010)

 The production of sodium carbonate is a process that consumes a large amount of energy, and the price skyrocketed sharply in 2007 and 2008 due to rapid price increases.In the trading of sodium carbonate, energy surcharges and union-based contracts became more common. The United States and India are at the center of supply.

Recently, substitutes such as liquid alkaline agents have been developed and used in part to minimize the use of alkaline agents and to provide ease of operation. However, the price of the substitutes and the difficulty of maintaining the pH during the operation have been a problem.

Various attempts have been made to secure the stability of the dyeing operation, but the safest traditional dyeing method, namely, by adding an excessive amount of alkaline agent several times to secure the stability of the color and the final product fastness.

Therefore, according to a survey result of over 200 technology companies in the domestic textile-related field, the most urgently needed priority technology for the conversion to energy-saving structure is the dyeing process technology.

The energy consumption of the dyeing industry accounts for 77% of the fuel consumption and 54% of the electricity consumption in the textile industry. Energy saving in the dyeing process is the most important for energy saving in the textile industry. To stay ahead of price competition with India and Southeast Asia, production of high-performance products is fundamental, environmentally friendly, and requires high level of process technology with utility savings.

Korean Patent Application No. 2009-0089408. Republic of Korea Patent Application No. 2010-0093988. Republic of Korea Patent Application No. 2003-0065932.

In the present invention, when dyeing cellulosic fibers using reactive dyes, the use of reactive dyes to maintain pH stability while minimizing the use of essential alkali agents for optimal fixation of dyes (preserving 1/10 of the amount of alkaline agents used for conventional deep dyeing) It is a problem to provide a fixation treatment method.

In addition, the present invention produces the best dyeing, the best quality cellulose products through the optimal process of alkali input, the shortest washing process by minimizing unfixed dyes, the optimal dyeing process of EcoOptimum cellulose products by reducing waste water Another challenge is to provide a method of fixing fixation that can be established.

In the fixing process of the cellulose fiber dyeing process consisting of refining → deposition → wetting → dispersion and reaction dyeing → propellant treatment → fixing agent treatment → washing → soaping → drying process,
In the fixing agent treatment process, in order to prevent a sharp rise in pH, the input amount of primary sodium carbonate is 0.5 to 0.6 g / l of pale color, 1.0 to 1.1 g / l of medium color, and 2.0 to 2.1 g / l of deep color, 10 After holding for 15 minutes, the sodium hydroxide is divided into several times, characterized in that the dyeing is maintained for 10 to 100 minutes.

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Here, the sodium hydroxide is added in an aqueous solution, and divided into 4 to 5 times of light color 0.5 to 0.6 g / l, medium color 1.0 to 1.1 g / l, and deep color 2.0 to 2.1 g / l. It is done.

Here, the sodium hydroxide is added after the first sodium carbonate, the pale color is 0.1 ~ 0.2g / ℓ firstly and maintained for 10 to 12 minutes, the second time 0.1 ~ 0.2g / ℓ is added to the second 10-12 It is characterized by maintaining for 10 minutes after the addition of 0.2 ~ 0.3g / ℓ in the third, and 0.2-0.3g / ℓ in the fourth and 60 to 70 minutes.

Here, the sodium hydroxide is added after the first sodium carbonate, the neutral color is 0.1 ~ 0.2g / ℓ firstly maintained for 10 to 12 minutes, the second time 0.3 ~ 0.4g / ℓ 2nd input 10-12 It is characterized by maintaining for 10 minutes after the third, 0.3 ~ 0.4g / ℓ in the third injection, 0.3 ~ 0.4g / ℓ in the fourth and 60 to 70 minutes.

Here, the sodium hydroxide is added after the first sodium carbonate, the deep color is 0.2 to 0.3g / l first to maintain for 10 to 12 minutes, the second 0.4 to 0.5g / l to the second to 10 to 12 Hold for 10 minutes, and then hold 0.4 ~ 0.5g / ℓ 3 times for 10 ~ 12 minutes, maintain 0.4 ~ 0.5g / ℓ 4 times for 10 ~ 12 minutes, add 5 ~ L for 50 ~ 60 minutes It is characterized by maintaining.

Fixing agent treatment method of cellulose-based fiber dyeing using the reactive dye provided in the present invention has the following effects.

1. Technical Aspects

(Improvement of the technology)

Sodium carbonate is a solid material, so it must be dissolved and used before it takes a lot of time and manpower and requires attention, but in the present invention, the use of liquid sodium hydroxide makes it easy to work and reduces unnecessary time and manpower.

(Ripple effect on other technologies)

-Available to all companies related to cellulose fiber dyeing.

Applied to cellulose knit fabric dyeing company.

Applied cellulose fiber dyeing company.

Application of cellulose knit CPB companies.

-It is possible to secure the accuracy of process automation and measurement by automatic transfer through liquid sodium hydroxide pipeline in the bulk manual injection method of solid sodium carbonate.

-As the optimal alkali is used as needed for dyeing, the acid treatment is reduced, the amount of waste water generated can be greatly reduced, there are no stains, the touch is very excellent, and the number of washings is greatly reduced.

-It can drastically reduce water usage, greatly reduce dyeing time, and can dye very economically.

2. Economic and industrial aspects

-Substitution of imports: Significantly reduce the amount of import dependence through the optimal application of liquid sodium hydroxide, while greatly reducing the amount of sodium carbonate that depends on total imports.

-Expectation of exports: It is expected to lower the production cost of dyeing by reducing raw and subsidiary materials, and can lead the export of products with advanced technology by securing price competitiveness for products of emerging countries such as China, India, and Vietnam.

-Cost reduction and price competitiveness with Chinese and Southeast Asian products with low wage structure can lead to a part of global apparel fabric orders in Korea, strengthening the domestic dyeing industry base, and creating employment effects.

-This project, which is in line with the Korean green growth direction, can improve both economic sustainability and environmental energy sustainability.

-Therefore, the technology provided by the present invention develops advanced dyeing processes such as water reduction technology, dyeing rate improvement technology, and process shortening technology that directly affect energy saving, and at the same time, manufactures knitted products with the world's highest quality in a green concept. Can actively respond to the rapidly increasing demands of consumers.

1 to 3 illustrate a dyeing process according to the type of fixing agent conventionally used.
Figure 4 illustrates a dyeing process when using an alkali fixing agent according to the present invention.
5 and 6 are graphs showing the daily reproducibility test results of the conventional fixing agent and the alkali fixing agent of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in more detail with reference to the accompanying drawings.

In the present invention, when the dyeing of the existing cellulose-based knitted fabrics, the number of alkali-divided injections for dye fixation is reduced to minimize the alkali input amount, and the number of inputs of the solid-state sodium carbonate, which is usually divided into four times, is reduced up to two times. Minimize color defect rate due to measurement error by inducing maximum utilization of automatic supply device and quantitative supply, shortening process and greening manufacturing site by using automated equipment, minimizing environmental pollution by dyeing wastewater, reducing wastewater treatment cost, optimal By applying alkali, the amount of waste water can be greatly reduced by minimizing unfixed dyes after dyeing, and it is easy to post-treatment, that is, acid treatment, and the process of washing with water is shortened. Completed for the purpose of development, according to the present invention, cellulose-based using a reactive dye Oil dip dyeing method during fixing agent treatment according to the polishing → → immersion wetting and dispersing → → dyeing reaction catalyst salts treatment → water washing → fixing agent treatment soping → → drying step cellulose-based textile dyeing process of the fixing agent treatment step consisting of,

The fixing agent is characterized in that the first sodium carbonate to maintain a predetermined time in order to prevent a sharp rise in pH, and then by dividing the sodium hydroxide several times to maintain for 10 to 100 minutes to dye.

According to the present invention, the amount of the primary sodium carbonate is added to the pale color 0.5 ~ 0.6 g / L, the neutral color 1.0 ~ 1.1 g / L, the deep color 2.0 ~ 2.1 g / L, and maintained for 10 to 15 minutes Do. The addition of the sodium carbonate is to prevent a sudden rise in pH.

According to the present invention, the sodium hydroxide is preferably added in an aqueous solution, and the amount of sodium hydroxide used as a salt solution is pale brown 0.5 to 0.6 g / l, medium 1.0 to 1.1 g / l, and deep color 2.0 to 2.1 g. / l is divided into 4 ~ 5 times.

More preferably, the sodium hydroxide is added after the first sodium carbonate, and the pale color is 0.1 to 0.2 g / l for the first time and maintained for 10 to 12 minutes, and the second time is 0.1 to 0.2 g / l for the second time to add 10 It is maintained for 12 minutes, and after the addition of 0.2-0.3 g / l in the third, it is maintained for 10 to 12 minutes, and after the addition of 0.2-0.3 g / l in the fourth, it is maintained for 60 to 70 minutes,

The sodium hydroxide is added after the first sodium carbonate, the medium color is 0.1 ~ 0.2g / ℓ firstly maintained for 10 to 12 minutes, the second time 0.3 ~ 0.4g / ℓ 2 times to maintain 10-12 minutes And after the 0.3-0.4g / ℓ in the third injection is maintained for 10-12 minutes, 0.3-0.4g / ℓ after the fourth injection is maintained for 60-70 minutes,

The sodium hydroxide is added after the first sodium carbonate, the deep color is 0.2 to 0.3 g / l to the first input and maintained for 10 to 12 minutes, the second 0.4 to 0.5 g / l is added to the second 10 to 12 minutes After adding 0.4 ~ 0.5g / ℓ in 3rd, keep for 10 ~ 12 minutes, 0.4 ~ 0.5g / ℓ in 4th, keep for 10 ~ 12 minutes, and add 0.4 ~ 0.5g / ℓ in 5th 50 Hold for ~ 60 minutes.

The reproducibility test was carried out in the field using a method of treating a cellulose-based fiber by using a reactive dye using a sodium hydroxide as an alkali fixing agent and a method of using a conventional sodium carbonate and a liquid fixing agent described above. .

The reproducibility test was tested by dyeing the neutral color, by adjusting the working conditions, that is, the dyeing temperature, the mixing method and the number of times, the mixing time, the alkali fixing agent treatment of the present invention was prepared and tested as follows, Sodium carbonate and the liquid fixing agent was applied as it is conventionally used.

Dyeing process was carried out as shown in Figures 1 to 4.

1 is a dyeing process applying the existing sodium carbonate, Figure 2 is a process applying a substitute of the existing sodium carbonate, Figure 3 is a process when using the existing liquid fixing agent, Figure 4 is an alkali fixing agent applying process according to the present invention.

-Below-

[Alkali Fixing Agent Treatment of the Present Invention]

1. Working condition: Sodium hydroxide is transferred in liquid form from the storage tank automatically, the first dilution in the service tank, and the automatic weighing is excellent.

Conventional sodium carbonate cannot be weighed automatically in solid phase, and the working loss and weighing accuracy are inferior due to manual weighing.

2. Dyeing temperature: 60 ℃ ~ 80 ℃

3. Mixing time:

-1,000 liters of dough, 10,000 liters of water for 1:10 bath.

-1.0 g / l sodium hydroxide calls the actual input 10kg into the automatic bath liquid and puts it into the service tank.

-500 liters of service tank capacity, so dilute to 1/50 for 10 minutes.

(In the case of the use of conventional sodium carbonate, the amount of use is 100kg, so it takes a long time to dissolve the dilution, but in case of sodium hydroxide, it is easy to dilute to liquid phase, which shortens the time.)

-The injection time and quantity are automatically controlled by the pre-made dyeing program, and divided input.

4. Input method and frequency, mixing time

<4-5 times divided into 1.0g / ℓ of neutral color>

1st, sodium carbonate 1.0 g / l for 10 minutes (initial use of sodium carbonate must be used to avoid sudden rise in pH)

Second, sodium hydroxide 0.1 g / L hold for 10 minutes

Tertiary, 0.3 g / L sodium hydroxide for 10 minutes

Quaternary, 0.3 g / l sodium hydroxide for 10 minutes

5th, 60 minutes of 0.3 g / L staining with sodium hydroxide

According to the working method as described above, the daily reproducibility test was performed using sodium hydroxide used in the present invention as an alkali fixing agent, and compared with a conventional reproducibility test using sodium carbonate powder and a liquid fixing agent (site work No. 3). The results are shown in FIGS. 5 and 6.

As a result, when the fixing agent was treated according to the method of the present invention, it was found that the daily reproducibility is much superior to the existing fixing agent.

The test for reproducibility test described above is one example for explaining the present invention, and the present invention is not limited by the test, and any modification can be made without departing from the scope of the present invention.

On the other hand, applying the fixing agent treatment method of the present invention, after dyeing the cellulose fiber fabric according to the reproducibility test test method, and measured various physical properties, the results are shown in Table 1 below.

Performance indicator unit Measurement result How to measure Wash fastness class 4 KS K ISO 105-C06 Friction fastness class 3-4 KS K 0650 Light fastness class 4 KS K ISO 105-B01 Sweat fastness class 3-4 KS K ISO 105-E04 Burst strength
Of existing processes % 100 ASTM D3786 Color reproducibility DE Less than 0.5 Based on AATCC 173
CCM measurement Wastewater related compare 5-10% reduction Dye residue bath turbidity measurement
Reduce the number of washings (1 time) Visual inspection after washing
(Compared to existing process sample) Satisfaction / Dissatisfaction satisfied Comparison of color change after 10 washes
Based on AATCC 173
CCM measurement

As a result of Table 1, when the dyeing process according to the fixing agent treatment method according to the present invention, it was found that the physical properties of the fabric is very excellent.

Claims (6)

In the fixing process of the cellulose fiber dyeing process consisting of refining → deposition → wetting → dispersion and reaction dyeing → propellant treatment → fixing agent treatment → washing → soaping → drying process,
In the fixing agent treatment process, in order to prevent a sharp rise in pH, the input amount of primary sodium carbonate is 0.5 to 0.6 g / l of pale color, 1.0 to 1.1 g / l of medium color, and 2.0 to 2.1 g / l of deep color, 10 After maintaining for 15 minutes, and then treated by dividing the sodium hydroxide several times and maintained for 10 to 100 minutes dyed cellulosic fiber dye using a reactive dye, characterized in that the treatment method.
delete The method of claim 1,
The sodium hydroxide is added in an aqueous solution, and divided into 4 to 5 times of light color 0.5 to 0.6 g / l, medium color 1.0 to 1.1 g / l, and deep color 2.0 to 2.1 g / l. Fixing agent treatment method of cellulose fiber dyeing using reactive dye.
The method of claim 3, wherein
The sodium hydroxide is added after the first sodium carbonate, the pale color is 0.1 ~ 0.2g / ℓ firstly maintained for 10 to 12 minutes, the second time 0.1 to 0.2g / ℓ 2 times to maintain 10-12 minutes In the third step, 0.2-0.3 g / l is added and maintained for 10 to 12 minutes, and 0.2-0.3 g / l is injected into the fourth and then maintained for 60 to 70 minutes. How to fix the binder.
The method of claim 3, wherein
The sodium hydroxide is added after the first sodium carbonate, the medium color is 0.1 ~ 0.2g / ℓ firstly maintained for 10 to 12 minutes, the second time 0.3 ~ 0.4g / ℓ 2 times to maintain 10-12 minutes When cellulose-based fiber dyeing with reactive dyes is maintained for 10 to 12 minutes after the third dose of 0.3 ~ 0.4g / ℓ, and maintained for 60 to 70 minutes after the fourth 0.3 ~ 0.4g / ℓ. How to fix the binder.
The method of claim 3, wherein
The sodium hydroxide is added after the first sodium carbonate, the deep color is 0.2 to 0.3 g / l to the first input and maintained for 10 to 12 minutes, the second 0.4 to 0.5 g / l is added to the second 10 to 12 minutes After adding 0.4 ~ 0.5g / ℓ in 3rd, keep for 10 ~ 12 minutes, 0.4 ~ 0.5g / ℓ in 4th, keep for 10 ~ 12 minutes, and add 0.4 ~ 0.5g / ℓ in 5th 50 Fixing agent treatment method of cellulosic fiber dyeing using a reactive dye, characterized in that maintained for ~ 60 minutes.

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