KR101591906B1 - Pretreatmenting method of the fabric - Google Patents

Abstract

More particularly, the present invention relates to a method for pretreatment of continuous knit fibers in which refining, bleaching and mercerization are performed in a single process. In the present invention, An immersion step of supplying an immersion liquid to an immersion tank and performing a treatment for 1 to 3 seconds under a temperature condition of 15 to 50 ° C and a step of immersing the fibers after the immersion step is carried out by passing through a pair of squeeze rollers, Passing the reaction zone and aging for 1 to 5 minutes; And the fiber having undergone the aging step is transferred to a steamer to supply a saturated steam having a moisture content of 10% or more in the steam at an upper temperature of 60 to 105 ° C and a lower temperature of 40 to 80 ° C to steam the steam for 5 to 10 minutes a steaming treatment for steaming, and a continuous water washing process.

Description

[0001] The present invention relates to a pretreatment method of the fabric,

The present invention relates to a continuous pretreatment method for fibers, and more particularly to a continuous pretreatment method for fibers in which refining, bleaching and mercerizing are performed in a single process.

The energy consumption of the textile dyeing and processing industry accounts for 77% of the fuel consumption and 54% of the electricity consumption. Therefore, the energy-saving and eco-friendly policies have difficulties in the energy consumption, but the high value-added industries that can remove impurities, to be.

On the other hand, consumer requirements for product quality continue to increase, and the creation of added value through product development and productivity improvement is becoming a determining factor for the success of the industry. Therefore, automation of production facilities, continuous production facilities, shortening and improvement of processes are changing to a considerable level. In Europe, continuous staining methods are being increasing in order to minimize personnel, shorten production time, and minimize environmental impact.

This continuous dyeing technology has been used for continuous refining, bleaching equipment development and dyeing technologies such as Pad-Dry-Pad-Steam and Pad-Dry-Thermofix in the textile industry since the 1960s. However, in the case of knit, stretch damage due to tension, Most of the companies except for advanced European companies are adopting batch process.

Since the early 2000s, knit continuous preprocessors and pad dying devices have been developed and marketed by leading European companies such as Kusters, Goller, Erbatech and Benninger.

Most of the cellulose-based blend materials such as modal, tencel, and rayon extracted from cotton and natural raw materials most commonly used for textile garments are used in high-end clothing. In order to have silk-like gloss and functionality, treatment with high concentration of sodium hydroxide Mercerized processing is required.

These products have high durability, uniform appearance and gloss, increased tensile strength, stable shrinkage after washing and surface mowing, and are now being applied to high-grade materials. Commercial liquid ammonia equipment has now reached commercialization stage, Large-scale facilities are required, and there are many problems that are difficult to realize in reality because of high processing cost and additional production process.

Most of the knitted products have a batch process which requires more than 50% of water and energy compared with the continuous process, and has a problem of quality deterioration due to the problem of surface peeling due to friction of the fabric during the process and high cost of the manufacturing process .

Korean Patent Publication No. 10-2009-0044709. Korean Patent Publication No. 10-2006-0078636. Korean Patent Publication No. 10-2013-0113245.

The present invention provides a continuous pretreatment method of a fiber which does not use a scouring agent and a bleaching agent by using a CPB Padder. By simultaneously imparting the effects of refining, bleaching and mercerizing, It is an object of the present invention to provide a continuous pretreatment method of a fiber having a refining, bleaching and mercerizing function capable of producing high value-added fiber products by securing the superiority of the material, the superiority of color and the dimensional stability, The problem is solved.

A continuous pretreatment method of a fiber of the present invention which solves the problems described above comprises an immersion step of treating the fibers after they have been treated at a temperature of 5 to 50 캜 for 1 to 3 seconds by supplying an immersion liquid to the immersed bath;

Wherein the fibers having been subjected to the immersion process are passed through a nip roller and passed through a reaction section composed of a plurality of feed rollers and aged for 1 to 5 minutes; And

The fiber having been subjected to the aging step is transferred to a steamer to supply the saturated steam having a moisture content of 10% or more in the steam at an upper temperature of 60 to 105 ° C and a lower temperature of 40 to 80 ° C for 5 to 10 minutes and a steam process for treating the steaming gas.

Herein, the reaction period of the aging step is carried out by an armed force so that washing is continuously performed.

The sodium hydroxide solution and the hydrogen peroxide solution (H 2 O 2) are mixed at a concentration of 3 to 23%, and the sodium hydroxide solution and the mixed solution are mixed at a ratio of 4: 1 to 1: 1 to the permeation tank.

The continuous pretreatment method of knit fibers provided in the present invention has the following effects.

1. Technical aspects

Through the continuous system which can process mercerizing processing in the continuous pretreatment and washing machine according to the present invention by one-step, securing the superiority of material, excellent color, dimensional stability and shortening of production process And energy savings, we can secure product competitiveness.

 In addition, it can enhance the competitiveness of the factors that directly affect knit product quality, such as high quality of material, excellent color, and dimensional stability, compared with products of advanced countries.

2. Economic and Industrial Aspects

In general, the continuous pretreatment method of knitted fibers according to the present invention is more advantageous than the batch type production process of knitted products, in that the method of continuous pretreatment of knitted fibers comprises 40 to 60% of water, 30 to 65% of steam, 30 to 40% of electricity, 30 to 35% of gas, 20%, CO ₂ can be reduced by more than 30%, and process time can be shortened by more than 40%.

In addition, it is necessary to carry out the separate refining and bleaching process after the mercerizing process and the one-step process in the preprocessing process and the mercerizing process in the manufacture of high-quality knitted products of more than 60's of cotton, thereby reducing the production cost, Competitiveness can be ensured.

FIG. 1 is a flow chart comparing a conventional dyeing process using a conventional continuous pretreatment process and a dyeing process using a continuous pretreatment process using a single process of continuous pretreatment and mercerizing process of the present invention.
2 is a process diagram showing an example of a continuous pre-processing method according to the present invention.
3 is a process diagram showing another embodiment of the continuous pretreatment method according to the present invention.
FIG. 4 is a photograph showing a comparison of energy required for each process of the conventional dyeing process as shown in FIG. 1 and the dyeing process of the present invention.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart comparing a conventional dyeing process using a conventional continuous pretreatment process and a dyeing process using a continuous pretreatment process applied with a single process of a continuous pretreatment and a mercerizing process of the present invention. FIG. FIG. 3 is a photograph showing data obtained by comparing the energy required for each process of the conventional dyeing process as shown in FIG. 1 and the dyeing process to which the present invention is applied.

As shown in FIG. 1, the continuous pretreatment method of fibers according to the present invention is characterized in that, in the conventional CPB dyeing process, the knit fibers are pretreated by CPB padding, mercerizing-> continuous rinsing-> tenter drying- The process of the present invention has a technical feature of shortening the continuous pre-treatment process of the fibers by unifying the processes of refining, bleaching and mercerizing of the fibers as shown in the development process diagram, which will be described in more detail with reference to FIG. 2 An immersion step of supplying the detergent fiber product 12 from the immersion tank 10 at a temperature condition of 15 to 50 ° C for 1 to 3 seconds by supplying the solution 20 and the fiber 14 after the immersion step is completed Aging step in which the toner is passed through a set of squeezing rollers 30 and conveyed to pass through a reaction zone 40 composed of a plurality of conveying rollers 42 and aged for 1 to 5 minutes; And the fiber having undergone the aging step is transferred to a steamer (50) to supply saturated steam having a moisture content of 10% or more in the steam, which satisfies the upper temperature of 60 to 105 ° C and the lower temperature of 40 to 80 ° C, A steam process for steaming for 10 minutes, and a continuous washing process.

According to the present invention, the reaction period of the aging step is to pass a plurality of conveying rollers 42 in a continuous manner and in a state of an emulsion force. Preferably, the aging time is within 1 to 5 minutes in the reaction zone. If the aging time of the reaction zone is less than 1 minute, the penetration of the chemical into the fabric is not smooth and the touch of the fabric becomes uneven, and the uniformity of the touch is further improved even after more than 5 minutes It is difficult to obtain the effect of the manufacturing process, the manufacturing process time is long, and the production cost is increased.

More preferably, as shown in FIG. 3, the reaction period of the aging step may be performed in a dwelling apparatus 60, and the fibers may be transferred to a dwelling apparatus to form a tension -30 To + 30.

According to the present invention, the immersion liquid used in the immersion process is composed of a sodium hydroxide (NaOH) solution having a concentration of 3% to 23%, a penetrating agent and hydrogen peroxide solution (H2O2) The sodium hydroxide solution and the mixed solution are preferably supplied to the permeation tank at a ratio of 4: 1 to 1: 1. The sodium hydroxide solution, the sodium hydroxide solution, and the hydrogen peroxide solution are preferably prepared. If the liquid amount exceeds the threshold value, the touch of the fabric becomes unstable.

At this time, the penetrating agent constituting the mixed liquid may be one usually used, but preferably sodium 2 ethylhexyl sulfate is used.

According to the present invention, it is preferable to mix the penetrant and the hydrogen peroxide solution so as to have a weight ratio of 4: 1 to 1: 1.

The energy consumption of the conventional dyeing process and the dyeing process using the continuous pretreatment process of the present invention are compared with each other by adopting the continuous pretreatment method of the fiber according to the present invention as described above, and the results are shown in FIG.

As a result of the comparative analysis of FIG. 3, the dyeing process is significantly shortened compared with the conventional process, thereby reducing the water content by about 49%, electricity by about 36%, gas by about 33%, steam by about 32% Shortening effect.

Meanwhile, Cotton 60'S fabric was dyed (15 g / L) at the same dye concentration by the conventional dipping method, the conventional continuous pretreatment + CPB staining method and the continuous pretreatment method of the present invention + CPB staining method by applying the continuous knit fiber pretreatment method of the present invention, The shrinkage rate and tear strength were compared and analyzed. The results are shown in Tables 1 to 3 below. Also, the appearance of each process was measured, and the results are shown in Table 4.

<Test Results>

1. Dyeability (Equipment: Macbeth Color i7)

As a result of K / S measurement using a colorimeter, the dyeing process employing the pretreatment method of the present invention showed the highest dyeability as shown in Table 1 below.

Treatment process K / S (550 nm) One Dip 4.035 2 Continuous preprocessing + CPB 5.971 3 [(Continuous pretreatment + mercerization) + CPB] 6.250

2. Shrinkage (AATCC Test Method 135-2010, 27 ℃, one time washing, natural drying)

As a result of Table 2, when the conventional process is applied, the shrinkage ratio within 5%, which is the requirement of high price of single fabric, is generated compared with the shrinkage rate of 8% appear.

Treatment process chapter(%) width(%) One Dip -8.3 2.7 2 Continuous preprocessing + CPB -8.5 -5.7 3 [(Continuous pretreatment + mercerization) + CPB] -3.9 -4.1

3. Tear strength (KS K ISO 13937-1: 2011 Hydraulic Act)

As a result of the following Table 3, it was found that the knitted products of the dipping process showed the lowest strength and the strength of the product of the process of the present invention was slightly lower than that of the (continuous pretreatment + CPB) process. This is analyzed by differences in input chemical concentration and mechanical conditions.

Treatment process Bursting strength (Kpa) One Dip 669 2 Continuous preprocessing + CPB 770.3 3 [(Continuous pretreatment + mercerization) + CPB] 723

4. Appearance

As shown in the following Table 4, it was found that the product to which the continuous pretreatment method of the present invention was applied exhibited better gloss and surface hairiness than the conventional products.

Treatment process 100x magnification (imaging microscope)





One





Dip

2





Continuous pre-treatment
+ CPB

3




[(Continuous pretreatment +
Mercer)
+ CPB]

10: Dipping tank 12: Textile product
14: fiber 20: liquid preparation
30: Squeeze roller 40: Reaction section
50: steam generator 60: de-welling device

Claims (4)

An immersion step of supplying the immersed fiber to an immersion bath in an immersion liquid and treating the immersed fiber at a temperature of 15 to 50 DEG C for 1 to 3 seconds;
Wherein the fibers having been subjected to the immersion process are passed through a squeeze roller and then passed through a reaction zone composed of a plurality of transport rollers and aged for 1 to 5 minutes; And
The fiber having been subjected to the aging step is transferred to a steamer to supply the saturated steam having a moisture content of 10% or more in the steam at an upper temperature of 60 to 105 ° C and a lower temperature of 40 to 80 ° C for 5 to 10 minutes steaming, and a continuous water washing process.
The method according to claim 1,
Wherein the aging step is carried out in a dwelling apparatus (60) equipped with a plurality of conveying rollers under a tension of -30 to +30.
The method according to claim 1,
The crude liquid used in the immersion process is prepared by preparing a sodium hydroxide (NaOH) solution with a concentration of 3% to 23%, a liquid mixture of a penetrating agent and a hydrogen peroxide solution (H2O2), mixing the sodium hydroxide solution and the mixed solution at a ratio of 4: 1 to 1: To the permeation tank. delete

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