KR20240011551A - Dyeing method of knitted fabric comprising cation dyeable polyester and polyurethane - Google Patents

Abstract

The present invention includes (a) a scouring step of pretreating a composite knit of catch-on dyeable polyester (CDP, cation dyeable polyester) fibers and polyurethane (PU, polyurethane) fibers with a scouring solution; (b) a heat setting step of pre-setting the refined composite knitted fabric by heat treatment; (c) a dyeing step of dyeing the heat-set composite knitted fabric; and (d) a washing step of washing the dyed composite knitted fabric with water. The dyeing method of composite knitted fabric of the present invention has the effect of improving the dyeing fastness of composite fibers including catch-on dyed polyester fibers and polyurethane fibers.

Description

Dyeing method of composite knitted fabric containing catch-on dyed polyester fiber and polyurethane fiber {DYEING METHOD OF KNITTED FABRIC COMPRISING CATION DYEABLE POLYESTER AND POLYURETHANE}

The present invention relates to a method for dyeing composite knits, and more specifically, to a method for dyeing composite knits containing catch-on dyed polyester fibers and polyurethane fibers with excellent dye fastness.

[R&D project that supported this invention]

[Assignment identification number] IZ200006

[Assignment number] IZ200006

[Ministry name] Gyeonggi-do

[Project management (professional) organization name] Gyeonggi-do

[Research project name] Local government commissioned research

[Research Project Name] [Ansan City Small Giant Company] Development of high-density two-way elastic knitted fabric for athleisure and breathable and waterproof 3-layer composite fabric using CDP yarn and PU yarn (2/4)

[Contribution rate] 1/1

[Research period] 2019. 08. 01. ~ 2022. 12. 31.

Recently, the sports clothing market is in demand for athleisure-style sportswear that is functional, comfortable, active, practical, and sophisticated. Athleisure is a compound word of athletics, which means exercise, and leisure, which emphasizes daily comfort and the pleasure of daily rest. It is a differentiated athleisure-style sport that can be used widely from light trekking to active sports activities. The development of wear is urgently needed.

In general, polyester fibers have various excellent properties such as strength, heat setting, washability, and wearing comfort, but they have problems such as pilling properties, hygroscopicity, antistatic properties, dyeing properties, and feel that are inferior to other fibers, so there is a need for modification. A lot of research is underway. In particular, polyester has a problem in dyeing processing in which sublimation fastness decreases, and this problem is caused by the use of disperse dyes. Currently, in order to increase sublimation fastness during disperse dyeing, the heat setting temperature must be set low, but for fabrics containing polyurethane, heat setting must be carried out at a temperature of 180℃ or higher to prevent curling of the edges of the fabric. However, at temperatures above 180℃, the disperse dye comes out to the surface of the fabric due to heat, so color fastness decreases during processes such as washing.

In addition, polyurethane fibers can generally be used in combination with various other fibers such as synthetic fibers such as nylon, PET, and acrylic and natural fibers such as wool, cotton, and silk. In particular, elastic fibers with a polyurethane content of 85% by weight or more are used. The fiber is called spandex. Polyurethane fibers are actively used for a variety of purposes due to their unique characteristics of high elasticity, and as their range of uses expands, new additional properties are continuously required for existing polyurethane fibers.

However, the finer the polyester fiber, the more likely it is that there will be problems with contamination of the polyurethane fiber by disperse dyes and a decrease in color transfer fastness due to this, as well as a lack of stretch recovery due to hydrolysis and heat embrittlement of the polyurethane fiber due to high-temperature heat setting and high-pressure dyeing. there is a problem.

The purpose of the present invention is to provide a method for dyeing composite knits containing catch-on dyeable polyester fibers and polyurethane fibers with improved dye fastness.

Another object of the present invention is to provide a dyeing method for composite knits containing catch-on dyed polyester fibers and polyurethane fibers suitable for application to athleisure materials.

According to one aspect of the present invention, (a) a scouring step of pretreating a composite knit of catch-on dyeable polyester (CDP, cation dyeable polyester) fibers and polyurethane (PU, polyurethane) fibers with a scouring solution; (b) a heat setting step of pre-setting the refined composite knitted fabric by heat treatment; (c) a dyeing step of dyeing the heat-set composite knitted fabric; and (d) a washing step of washing the dyed composite knitted fabric with water. A method for dyeing a composite knitted fabric including a.

Additionally, the refining solution may include one or more selected from the group consisting of a scouring agent, an emulsifier, a leveling penetrant, and a carrier dispersant.

Additionally, the refining solution may additionally contain sodium carbonate.

Additionally, the pretreatment in step (a) may be performed at a temperature of 70 to 90° C. for 30 to 60 minutes.

Additionally, the pre-setting in step (b) may be performed at a temperature of 150 to 220°C for 1 to 5 minutes.

Additionally, the staining in step (c) may be performed using an ED type CDP dye.

Additionally, the concentration of the ED type CDP dye may be 0.01 to 10% o.w.f. (on the weight of fiber).

Additionally, the dyeing in step (c) may be performed at a temperature of 80 to 150° C. for 10 to 100 minutes.

In addition, step (c) includes (c-1) immersing the heat-set composite knitted fabric in a solution containing salt; and (c-2) adding a dye to the solution and dyeing the heat-set composite knit fabric immersed in the solution to produce a dyed composite knit fabric; may include.

Additionally, the salt may include manganese.

Additionally, the water washing in step (d) may be performed at a temperature of 40 to 95° C. for 10 to 30 minutes.

In addition, after step (d), (e) processing the dyed composite knitted fabric with a water-repellent agent to produce a water-repellent composite knitted fabric may be further included.

Additionally, the water repellent agent in step (e) may include one or more selected from the group consisting of C6 fluorine water repellent, C8 fluorine water repellent, non-fluorine water repellent, crosslinking agent, penetrant, and silicone water repellent.

In addition, the dyeing method of the composite knit includes, before step (a), the step of (a') producing a composite knit including catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers; It can be included.

Additionally, the denier of the catch-on dyeable polyester (CDP) fiber may be 30 Denier/50 Filament to 90 Denier/80 Filament.

In addition, step (a) may be to prepare the composite knitted fabric by knitting catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers in a 10 to 40 gauge.

Additionally, the knitting may be performed with any one selected from the group consisting of single knitting and double knitting.

In addition, the composite knitted fabric may have a ratio (CDP:PU) of catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers of 70:30 to 90:20.

According to one aspect of the present invention, a composite knitted yarn manufactured according to the above composite knitted dyeing method is provided.

Additionally, the composite knitted yarn can be used as an athleisure material.

The dyeing method of composite knits of the present invention has the effect of improving the dyeing fastness of composite knits containing catch-on dyed polyester fibers and polyurethane fibers.

In addition, the composite knitted yarn dyed according to the dyeing method of the composite knitted fabric of the present invention may be suitable for application to materials for athleisure.

Figure 1 is a photograph of a single or double knitting machine used in the present invention.
Figure 2 is a single/double tissue design diagram (50/72) of Preparation Examples 2 and 4.
Figure 3 shows the results of comparing CDP absorption height according to refining agent.
Figures 4 and 5 show the results of comparing whiteness according to refining agent.
Figures 6 and 7 show the results of comparing CDP absorption height according to refining agent concentration.
Figures 8 to 11 show the results of comparing whiteness according to refining agent concentration.
Figure 12 shows the results of comparing whiteness according to pre-setting temperature.
Figure 13 shows the color evaluation results of composite knits dyed with dye after each treatment according to the pre-setting temperature.
Figure 14 shows the color (K/S) evaluation results according to dyeing temperature and concentration.
Figure 15 shows the results of dyeing rate evaluation according to dyeing time for each dye.
Figure 16 shows the color evaluation results according to the concentration of persimmon dye for each dye.
Figure 17 shows the results of evaluating the dyeability of composite knitted fabrics according to the washing temperature for each dye.
Figures 18 and 19 show the results of water repellency evaluation according to the concentration of each water repellent.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Additionally, terms including ordinal numbers, such as first, second, etc., which will be used below, may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

Additionally, when a component is referred to as being “on another component,” “formed on another component,” “located on another component,” or “stacked on another component,” It may be formed by being directly attached to the front or one side of the surface of another component, positioned, or stacked, but it should be understood that other components may further exist in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the dyeing method of composite knitted fabric according to the present invention will be described.

The present invention includes (a) a scouring step of pretreating a composite knit of catch-on dyeable polyester (CDP, cation dyeable polyester) fibers and polyurethane (PU, polyurethane) fibers with a scouring solution; (b) a heat setting step of pre-setting the refined composite knitted fabric by heat treatment; (c) a dyeing step of dyeing the heat-set composite knitted fabric; and (d) a washing step of washing the dyed composite knitted fabric with water.

The refining solution may include one or more selected from the group consisting of a scouring agent, an emulsifier, a leveling penetrant, and a carrier dispersant.

The refining solution may additionally include sodium carbonate.

The pretreatment in step (a) may be performed at a temperature of 70 to 90°C, preferably 75 to 85°C. If the pretreatment is performed below 70°C, it is undesirable because the pretreatment efficiency of the refining solution is reduced. If the pretreatment is performed above 90°C, it is undesirable because energy loss and productivity decrease due to temperature overtreatment.

The pretreatment in step (a) may be performed for 30 to 60 minutes. If the pretreatment is performed for less than 30 minutes, it is undesirable because the pretreatment efficiency decreases, and if it is performed for more than 60 minutes, it is undesirable because energy loss and productivity decrease due to excessive performance.

The pre-setting in step (b) may be performed at a temperature of 150 to 220°C, preferably 160 to 200°C. If the presetting is performed below 150°C, it is undesirable because the efficiency decreases, and if it is performed above 220°C, it is undesirable because the fabric is damaged.

The pre-setting of step (b) may be performed for 1 to 5 minutes. If the presetting is performed for less than 1 minute, it is undesirable because the efficiency decreases, and if it is performed for more than 5 minutes, it is undesirable because the fabric is damaged.

The staining in step (c) may be performed using ED type CDP dye.

The concentration of the ED type CDP dye is 0.01 to 10% o.w.f. (on the weight of fiber), preferably 0.03 to 7% o.w.f. More preferably, it may be 0.05 to 4% o.w.f. If the concentration is less than 0.01% o.w.f, it is undesirable due to insufficient color expression, and if it exceeds 10% o.w.f, it is undesirable due to inefficiency due to the use of excessive dye.

The dyeing in step (c) may be performed at a temperature of 80 to 150°C, preferably 90 to 130°C, more preferably 100 to 120°C. If the dyeing is performed below 80°C, it is undesirable because the reaction between the dye and the fabric is insufficient, and if the dyeing is performed above 150°C, it is undesirable because the dye decomposes and the fabric is damaged.

The staining in step (c) may be performed for 10 to 100 minutes. If the dyeing is performed for less than 10 minutes, it is undesirable because the reaction between the dye and the fabric is insufficient, and if the dyeing is performed for more than 100 minutes, it is undesirable due to damage to the fabric and energy loss.

CDP (Cation Dyeable Polyester) is a polymer that is copolymerized by adding dicarbo methoxybenzene sulfonate (DMBS) during polymerization of polyester material that can be dyed with existing disperse dyes. This fiber is called CDP yarn. This yarn is made of functional groups in the molecule. -SO ₃ Na dissociates in an aqueous solution to become -SO ₃ anion, and is dyed through ionic bond with D-NH ₃ cation, which is a cationic dye, making it a material that enables vivid dyeing.

CDP fibers are largely included in polyester fibers, and the crystalline region of polyester fibers becomes amorphous when the temperature rises, but modified CDP fibers have (-) ions formed, so they can be used for disperse dyes that want to physically bond. Disperse dyes are difficult to apply because dyeing does not occur due to the pushing action, and by applying dyes for CDP, dispersion dissolution, machine contamination, compatibility of dyes, dyeability and build-up properties, and color range applicable to CDP fibers are reduced. Advantages were shown in the following.

Step (c) includes (c-1) immersing the heat-set composite knitted fabric in a solution containing salt; and (c-2) adding a dye to the solution and dyeing the heat-set composite knit fabric immersed in the solution to produce a dyed composite knit fabric; may include.

The salt may include networt.

The networt (Na ₂ SO ₄ ) is used for the purpose of preventing hydrolysis of CDP fibers, and is effective when added to the dye bath. The effect is usually shown when used in the range of 3 to 6 g/l, and the networt It has the effect of preventing the decrease in strength of CDP fibers, and in other aspects, has some anti-flame effect.

The water washing in step (d) may be performed at a temperature of 40 to 95°C, preferably 40 to 95°C. If the washing is performed below 40°C, it is undesirable because the washing efficiency is lowered, and if the washing is performed above 95°C, it is undesirable because energy loss and productivity decrease.

The water washing in step (d) may be performed for 10 to 30 minutes. If the washing is performed for less than 10 minutes, it is undesirable because the washing efficiency is lowered, and if the washing is performed for more than 30 minutes, energy loss and productivity are reduced, which is undesirable.

After step (d), (e) processing the dyed composite knitted fabric with a water-repellent agent to produce a water-repellent composite knitted fabric may be further included.

The water repellent agent in step (e) may include at least one selected from the group consisting of a C6 fluorine water repellent, a C8 fluorine water repellent, a non-fluorine water repellent, a crosslinking agent, a penetrating agent, and a silicone water repellent.

The dyeing method of the composite knit fabric further includes the step (a') of producing a composite knit fabric containing catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers before step (a). can do.

The denier of the catch-on dyeable polyester (CDP) fiber may be 30 Denier/50 Filament to 90 Denier/80 Filament.

Step (a) may be to produce the composite knitted fabric by knitting catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers in a 10 to 40 gauge.

The knitting may be performed with any one selected from the group consisting of single knitting and double knitting.

The composite knit fabric may have a ratio (CDP:PU) of catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers of 70:30 to 90:10. If the ratio (CDP:PU) of catch-on dyed polyester (CDP) fiber and polyurethane (PU) fiber is less than 70:30, it is undesirable because dyeing defects increase, and the ratio (CDP:PU) is 90. : If it exceeds 10, elasticity decreases and is not desirable.

In addition, the present invention provides a composite knitted yarn dyed according to the above composite knitted dyeing method.

The composite knitted yarn can be used as an athleisure material.

[Example]

Hereinafter, the present invention will be described in more detail through examples. However, this is for illustrative purposes only and does not limit the scope of the present invention.

Preparation Examples 1 to 4: Production of composite knitted fabric (knitting)

Manufacturing Examples 1 to 4 using 75de/72f CDP yarn or 50de/72f CDP yarn and SPAN 40D yarn under the conditions shown in Table 2 using the single or double knitting machine of Figure 1 and Table 1. Single or double composite knitted fabrics were manufactured according to. Figure 2 is a single/double tissue design diagram (50/72) of Preparation Examples 2 and 4.

division Knitting machine specifications Single gauge - 18 ~ 34 Feed - 90F(3.0F/inch), Ctlinder Diameter: 10“ ~ 24” Double gauge - 24 ~ 34 Feed - 84F(3.0F/inch), Ctlinder Diameter: 10“ ~ 24”

division Single knitted fabric Double knitted fabric composite knitted fabric Manufacturing Example 1
CDP 75/72, SPAN 40D
(Yarn mixing ratio 80:20(%)) Production example 3
CDP 75/72, SPAN 40D
(Yarn mixing ratio 80:20(%)) Production example 2
CDP 50/72, SPAN 40D
(Yarn mixing ratio 86:14(%)) Production example 4
CDP 50/72, SPAN 40D
(Yarn mixing ratio 86:14(%)) Specifications 32 inch, 28 gauge, 15 rpm. 36 inch, 22 gauge, 15 rpm.

Examples 1-1 to 1-10 and Examples 2-1 to 2-10: Refinement of composite knitted fabric

The composite knitted fabrics according to Preparation Examples 1, 2, 3, and 4 were each pretreated (refined) under the conditions shown in Table 3 below.

division composite knitted fabric Pretreatment solution (1L) temperature hour Refining agent concentration Refining agent type sodium carbonate Example 1-1 Production example 3 0.4 g/l first refining agent 1.0 g/l 80℃ 40min Example 2-1 Production example 4 Example 1-2 Production example 3 0.7 g/l Example 2-2 Production example 4 Example 1-3 Production example 3 1.0 g/l Example 2-3 Production example 4 Example 1-4 Production example 3 1.3 g/l Example 2-4 Production example 4 Examples 1-5 Production example 3 1.0 g/l secondary refining agent 1.0 g/l Example 2-5 Production example 4 Example 1-6 Production example 3 0.4 g/l Third refining agent 1.0 g/l Example 2-6 Production example 4 Example 1-7 Production example 3 0.7 g/l Example 2-7 Production example 4 Examples 1-8 Production example 3 1.0 g/l Example 2-8 Production example 4 Example 1-9 Production example 3 1.3 g/l Example 2-9 Production example 4 Examples 1-10 Production example 3 1.0 g/l fourth refining agent 1.0 g/l Example 2-10 Production example 4

Examples 3-1 to 3-12 and Examples 4-1 to 4-12: Presetting (heat setting) of composite knitted fabric

The composite knitted fabrics according to Preparation Examples 1, 2, 3, and 4 were each pretreated (presetting) under the conditions shown in Table 4 below.

division composite knitted fabric Pre-setting dyeing temperature hour dyes dye concentration temperature hour Example 3-1 Production example 3 160℃ 2min - - - - Example 3-2 180℃ - - - - Example 3-3 200℃ - - - - Example 4-1 Production example 4 160℃ 2min - - - - Example 4-2 180℃ - - - - Example 4-3 200℃ - - - - Example 3-4 Production example 3 160℃ 2min CDP dye
(ED type) Yellow 2% o.w.f. 80℃ 40min Example 3-5 180℃ Example 3-6 200℃ Example 4-4 Production example 4 160℃ 2min CDP dye
(ED type) Yellow 2% o.w.f. 80℃ 40min Example 4-5 180℃ Example 4-6 200℃ Example 3-7 Production example 3 160℃ 2min CDP dye
(ED type) Red 2% o.w.f. 80℃ 40min Example 3-8 180℃ Example 3-9 200℃ Example 4-7 Production example 4 160℃ 2min CDP dye
(ED type) Red 2% o.w.f. 80℃ 40min Example 4-8 180℃ Example 4-9 200℃ Example 3-10 Production example 3 160℃ 2min CDP dye
(ED type) Blue 2% o.w.f. 80℃ 40min Example 3-11 180℃ Example 3-12 200℃ Example 4-10 Production example 4 160℃ 2min CDP dye
(ED type) Blue 2% o.w.f. 80℃ 40min Example 4-11 180℃ Example 4-12 200℃

Examples 5-1 to 5-30: Dyeing of composite knitted fabric

The composite knitted fabric according to Preparation Example 4 was dyed under the conditions shown in Table 5 below.

division composite knitted fabric dyeing dyes dye concentration temperature hour Example 5-1 Production example 4 CDP dye
(ED type)
Red 0.05% o.w.f. 100℃ 40min Example 5-2 0.1% o.w.f. Example 5-3 1% o.w.f. Example 5-4 2% o.w.f. Example 5-5 4% o.w.f. Example 5-6 Production example 4 CDP dye
(ED type)
Yellow 0.05% o.w.f. 100℃ 40min Example 5-7 0.1% o.w.f. Example 5-8 1% o.w.f. Example 5-9 2% o.w.f. Example 5-10 4% o.w.f. Example 5-11 Production example 4 CDP dye
(ED type)
Blue 0.05% o.w.f. 100℃ 40min Example 5-12 0.1% o.w.f. Example 5-13 1% o.w.f. Example 5-14 2% o.w.f. Example 5-15 4% o.w.f. Example 5-16 Production example 4 CDP dye
(ED type)
Red 0.05% o.w.f. 120℃ 40min Example 5-17 0.1% o.w.f. Example 5-18 1% o.w.f. Example 5-19 2% o.w.f. Example 5-20 4% o.w.f. Example 5-21 Production example 4 CDP dye
(ED type)
Yellow 0.05% o.w.f. 120℃ 40min Example 5-22 0.1% o.w.f. Example 5-23 1% o.w.f. Example 5-24 2% o.w.f. Example 5-25 4% o.w.f. Example 5-26 Production example 4 CDP dye
(ED type)
Blue 0.05% o.w.f. 120℃ 40min Example 5-27 0.1% o.w.f. Example 5-28 1% o.w.f. Example 5-29 2% o.w.f. Example 5-30 4% o.w.f.

Examples 6-1 to 6-9: Dyeing of composite knitted fabric (addition of netweed)

The composite knitted fabric according to Preparation Example 4 was dyed under the conditions shown in Table 6 below.

division composite fiber dyeing Dyes and Concentrations Amount of pepper added temperature hour Example 6-1 Production example 4 CDP dye
(ED type)
Yellow 2% owf 4g/l 120℃ 40min Example 6-2 8g/l Example 6-3 12g/l Example 6-4 Production example 4 CDP dye
(ED type)
Yellow 2% owf 4g/l 120℃ 40min Example 6-5 8g/l Example 6-6 12g/l Example 6-7 Production example 4 CDP dye
(ED type)
Blue 2% 4g/l 120℃ 40min Example 6-8 8g/l Example 6-9 12g/l

Examples 7-1 to 7-18: Washing composite knitted fabric

The composite knitted fabrics according to Preparation Examples 2 and 4 were each washed under the conditions shown in Table 7 below.

division composite knitted fabric dyeing defensive Dyes and Concentrations temperature hour temperature hour Example 7-1 Production example 2 CDP dye
(ED type)
Yellow 2% owf 120℃ 40min 45℃ 2min Example 7-2 70℃ Example 7-3 95℃ Example 7-4 Production example 2 CDP dye
(ED type)
Red 2%owf 120℃ 40min 45℃ 2min Example 7-5 70℃ Example 7-6 95℃ Example 7-7 Production example 2 CDP dye
(ED type)
Blue 2% 120℃ 40min 45℃ 2min Example 7-8 70℃ Example 7-9 95℃ Example 7-10 Production example 4 CDP dye
(ED type)
Yellow 2% owf 120℃ 40min 45℃ 2min Example 7-11 70℃ Example 7-12 95℃ Example 7-13 Production example 4 CDP dye
(ED type)
Red 2%owf 120℃ 40min 45℃ 2min Example 7-14 70℃ Example 7-15 95℃ Example 7-16 Production example 4 CDP dye
(ED type)
Blue 2% 120℃ 40min 45℃ 2min Example 7-17 70℃ Example 7-18 95℃

Examples 8-1 to 8-6: Water repellent treatment of composite knitted fabric

The composite knitted fabric according to Preparation Example 4 was subjected to water repellent treatment by drying the composite knitted fabric at 120°C for 3 minutes using the water repellent agent shown in Table 9 below and then heat treating it at 180°C for 2 minutes.

division composite knitted fabric dyeing Water repellent treatment Dyes and Concentrations temperature hour water repellent density Example 8-1 Production example 4 CDP dye
(ED type)
Yellow
2% owf 120℃ 40min No. 1 water repellent 40g/l Example 8-2 80g/l Example 8-3 120 g/l Example 8-4 Second water repellent 40g/l Example 8-5 80 g/l Example 8-6 120g/l

Example 9: Preparation of composite knitted dyed yarn

The composite knitted fabric according to Preparation Example 3 or 4 was scoured for 80°C x 40 min using a pretreatment solution (concentration of 1.3 g/l) containing the first scouring agent. Then, pre-setting was performed at 160°C for 2 min. Next, it was dyed at 120°C for 40 minutes using CDP dye (ED type) Yellow 2% o.w.f. At this time, acetic acid and sodium sulfate were also used.

The dyed composite knitted fabric was washed with water at 50°C for 20 minutes, dried at 120°C for 3 minutes using a water repellent agent, and then heat treated at 180°C for 2 minutes for water repellent treatment.

[Test example]

Test Example 1: Performance evaluation of composite knits according to knitting method

The fabric weight, fabric (grease) density, fabric tensile strength, fabric elongation recovery rate, and fabric elongation rate of the composite knits according to Examples 1 to 4 were compared. Fabric weight is KS K 0514:2017, fabric density is KS K 0512:2012, fabric tensile strength is KS K 0520:2017, fabric elongation recovery rate is JIS 1096:2010, 8. 16. 2 D method, fabric elongation rate. was evaluated using JIS 1096: 2010, 8. 16. 2 method B.

The fabric weight evaluation results were 189.9 g/m2 for Examples 1 and 2 (Single) and 258.6 g/m2 for Examples 3 and 4 (Double), and the fabric density evaluation results were Examples 1 and 2 (Single). 7,680 pieces/inch ² , Examples 3 and 4 (Double) 3,996 pieces/inch ² .

In addition, the tensile strength results of the fabric showed strength of 101.0N and elongation of 174.3% in the wale direction and strength of 120.5N and elongation of 152.3% in the course direction of Examples 1 and 2 (Single). Examples 3 and 4 (Double) showed strength of 150.0N and elongation of 174.0% in the wale direction, and strength of 146.6N and elongation of 264.4% in the course direction.

In addition, the fabric elongation recovery rate results for Examples 1 and 2 (Single) were 94.8 in the wale direction and 96.7 in the course direction. Examples 3 and 4 (Double) showed 94.7 in the wale direction and 94.8 in the course direction.

In addition, the fabric elongation results for Examples 1 and 2 (Single) were 197.9 in the wale direction and 124.8 in the course direction. Examples 3 and 4 (Double) showed 158.8 in the wale direction and 246.8 in the course direction.

Test Example 2: Refining performance evaluation according to refining agent

Figure 3 shows the results of comparing the CDP absorption height according to the refining agent, and Figures 4 and 5 show the results of comparing the whiteness according to the refining agent.

The scouring performance (wicking and whiteness) of composite knitted fabrics according to Preparation Examples 3 and 4 by scouring agent was compared. Hygroscopicity was measured by the KS K 0642:2016 / 8.26.1 Absorption Rate B Method Byrek method and the results are shown in Table 9, and the color was measured for whiteness (ASTM E 313) using a computer color matching system and shown in Table 10 below. It is described in .

refining agent
(1.0 g/l) Absorption speed measurement result (mm) Manufacturing Example 3 (CDP 75/72 + SPAN 40D) Manufacturing Example 4 (CDP 50/72 + SPAN 40D) first refining agent 130 (Example 1-3) 116 (Example 2-3) secondary refining agent 119 (Example 1-5) 116 (Example 2-5) Third refining agent 126 (Example 1-8) 122 (Example 2-8) fourth refining agent 123 (Example 1-10) 116 (Example 2-10)

Referring to Figure 3 and Table 9, the wicking test results show that Example 1-3 had an absorbed height of 130 mm, Example 1-5 had an absorbed height of 119 mm, and Example 1-8 had an absorbed height of 126 mm. With an absorbed height of 123 mm in Example 1-10, the performance of the first refining agent was excellent. In addition, with an absorbed height of 116 mm in Example 2-3, an absorbed height of 116 mm in Example 2-5, an absorbed height of 122 mm in Example 2-8, and an absorbed height of 116 mm in Example 2-10, the absorption height of the third refining agent was 116 mm. Performance was excellent.

refining agent
(1.0 g/l) Whiteness measurement results Manufacturing Example 3 (CDP 75/72 + SPAN 40D) Manufacturing Example 4 (CDP 50/72 + SPAN 40D) WI dWI WI dWI first refining agent 72.38 (Example 1-3) - 67.37 (Example 2-3) - secondary refining agent 74.52 (Example 1-5) 2.14 67.89 (Example 2-5) 0.52 Third refining agent 72.29 (Example 1-8) -0.09 67.57 (Example 2-8) 0.2 fourth refining agent 72.67 (Example 1-10) 0.29 67.29 (Example 2-10) -0.08

Referring to Figures 4, 5 and Table 10, as a result of measuring the whiteness, the whiteness of Example 1-3 was 72.38, the whiteness of Example 1-5 was 74.52, the whiteness of Example 1-8 was 72.29, and the whiteness of Example 1-10 was 72.38. The whiteness was 72.67, and the whiteness of the second refining agent was the highest. In addition, the whiteness of Example 2-3 was 67.37, Example 2-5 was 67.89, Example 2-8 was 67.57, and Example 2-10 was 67.29, showing the highest whiteness of the second refining agent.

Test Example 3: Refining performance evaluation according to refining agent concentration

Figures 6 and 7 show the results of comparing the CDP absorption height according to the refining agent concentration, and Figures 8 to 11 show the results of comparing the whiteness according to the refining agent concentration.

The scouring performance (wicking and whiteness) of composite knitted fabrics according to Preparation Examples 3 and 4 by scouring agent concentration was compared. Hygroscopicity was measured by the KS K 0642:2016 / 8.26.1 Absorption Rate B Method Byrek method and the results are shown in Table 11, and the color was measured for whiteness (ASTM E 313) using a computer color matching system and shown in Table 12 below. and 13. At this time, a test was conducted to process composite fibers by varying the concentration of the refining agent from 0.4 to 1.3 g/l. Considering the wicking test results of Test Example 2, the first and third refining agents were tested.

Refining agent concentration (g/l) Absorption speed measurement result (mm) Manufacturing Example 3 (CDP 75/72 + SPAN 40D) Manufacturing Example 4 (CDP 50/72 + SPAN 40D) first refining agent Third refining agent first refining agent Third refining agent 0.4 117 (Example 1-1) 117 (Example 1-6) 114 (Example 2-1) 118 (Example 2-6) 0.7 119 (Example 1-2) 129 (Example 1-7) 116 (Example 2-2) 122 (Example 2-7) 1.0 125 (Example 1-3) 128 (Example 1-8) 117 (Example 2-3) 127 (Example 2-8) 1.3 125 (Example 1-4) 131 (Example 1-9) 116 (Example 2-4) 126 (Example 2-9)

According to Figures 6, 7 and Table 11, for CDP 75/72 + SPAN 40D fabric, the absorption height tended to increase as the concentration of the first scouring agent increased. At this time, it was found that Examples 1-3 and 1-4 had excellent refining properties. Additionally, the third refining agent also showed a tendency for the absorption height to increase as the concentration increased. At this time, it was found that Example 1-9 had excellent scouring properties. In addition, for CDP 50/72 + SPAN 40D fabric, similar results were shown at concentrations of 0.4 to 1.3 g/l of the first scouring agent. In addition, as the concentration of the third refining agent increased, the absorption height tended to increase, and it was found that Example 2-8 had excellent scouring properties.

First refining agent concentration (g/l) Whiteness measurement results Third refining agent concentration (g/l) Whiteness measurement results WI dWI WI dWI 0.4 71.97 (Example 1-1) - 0.4 71.18 (Example 1-6) - 0.7 72.31 (Example 1-2) 0.34 0.7 71.17 (Example 1-7) -0.01 1.0 72.4 (Example 1-3) 0.43 1.0 72.02 (Example 1-8) 0.84 1.3 74.37 (Example 1-4) 2.4 1.3 72.58 (Example 1-9) 1.4

According to Figures 8, 9 and Table 12, for CDP 75/72 + SPAN 40D fabric, whiteness was highest when treated with the first scouring agent at a concentration of 1.3 g/l or the third scouring agent at a concentration of 1.0 g/l, respectively. .

First refining agent concentration (g/l) Whiteness measurement results Third refining agent concentration (g/l) Whiteness measurement results WI dWI WI dWI 0.4 65.7 (Example 2-1) - 0.4 64.93 (Example 2-6) - 0.7 65.05 (Example 2-2) -0.65 0.7 65.15 (Example 2-7) 0.22 1.0 66.28 (Example 2-3) 0.58 1.0 65.93 (Example 2-8) 1.0 1.3 68.77 (Example 2-4) 3.07 1.3 66.49 (Example 2-9) 1.56

In addition, according to Figures 10, 11 and Table 13, for CDP 50/72 + SPAN 40D fabric, the whiteness was highest when treated with the first scouring agent at a concentration of 1.3 g/l or the third scouring agent at a concentration of 1.3 g/l, respectively. appear.

Test Example 4: Comparison of dyeing of composite knitted fabrics according to presetting temperature

Figure 12 shows the results of comparing whiteness according to pre-setting temperature, and Figure 13 shows the color evaluation results of composite knits dyed with dye after each treatment according to pre-setting temperature.

The whiteness and color of the composite knitted fabrics according to Preparation Examples 3 and 4 were compared at each pre-setting temperature. Whiteness was evaluated for the fibers of Examples 3-1 to 3-3 and Examples 4-1 to 4-2 that were pre-set at 160, 180, and 200°C, and the results are shown in Table 14 below. The color was evaluated for the fibers of Examples 3-4 to 3-12 and Examples 4-4 to 4-12 dyed after pre-setting treatment, and the results are shown in Table 15 below.

division composite knitted fabric temperature Whiteness measurement results Whiteness (WI) dWI Example 3-1 Production example 3
(CDP 75/72 + SPAN 40D) 160℃ 78.68 - Example 3-2 180℃ 78.83 0.15 Example 3-3 200℃ 70.1 -8.58 Example 4-1 Production example 4
(CDP 50/72 + SPAN 40D) 160℃ 71.67 - Example 4-2 180℃ 67.59 -4.08 Example 4-3 200℃ 64.9 -6.77

Referring to Figure 12 and Table 14, for Preparation Example 3 (CDP 75/72 + SPAN 40D), the whiteness of Example 3-1 treated at 160°C was 78.68, and the whiteness of Example 3-2 treated at 180°C was 78.68. The whiteness of Example 3-3 treated at 78.83 and 200°C was 70.10, showing that the whiteness of the fiber decreased at 200°C. Also, for Preparation Example 4 (CDP 50/72 + SPAN 40D), treated at 160°C The whiteness of Example 4-1 was 71.67, the whiteness of Example 4-2 treated at 180°C was 67.59, and the whiteness of Example 4-3 treated at 200°C was 64.90. The higher the presetting temperature, the higher the whiteness of the fiber. showed a tendency to fall.

division composite knitted fabric temperature color l a b dE Concentration difference Example 3-4 Production example 3 160℃ Yellow 40.12 -6.66 -38.7 - - Example 3-5 180℃ 39.9 -6.38 -38.93 0.42 101.9 Example 3-6 200℃ 40.5 -6.660 -38.95 0.46 97.4 Example 4-4 Production example 4 160℃ 76.66 20.97 73.82 - - Example 4-5 180℃ 76.93 20.65 74.37 0.7 100.2 Example 4-6 200℃ 77.06 20.15 74.2 0.99 98.7 Example 3-7 Production example 3 160℃ Red 45.24 60.77 6.09 - - Example 3-8 180℃ 45.71 61.08 5.89 0.59 96.9 Example 3-9 200℃ 46.12 61.32 6.17 1.03 94.5 Example 4-7 Production example 4 160℃ 45.24 60.77 6.09 - - Example 4-8 180℃ 45.71 61.08 5.89 0.59 96.9 Example 4-9 200℃ 46.12 61.32 6.17 1.03 94.5 Example 3-10 Production example 3 160℃ Blue 40.12 -6.66 -38.7 - - Example 3-11 180℃ 39.9 -6.38 -38.93 0.42 101.9 Example 3-12 200℃ 40.5 -6.660 -38.95 0.46 97.4 Example 4-10 Production example 4 160℃ 38.2 -4.58 -38.75 - - Example 4-11 180℃ 37.96 -4.57 -38.23 0.57 100.0 Example 4-12 200℃ 36.35 -3.57 -37.82 2.3 109.9

Referring to Figure 13 and Table 15, for Preparation Example 3 (CDP 75/72 + SPAN 40D), dyed with yellow dye after treatment at each pre-setting temperature (160°C, 180°C, 200°C). As a result of the color evaluation in Examples 3-4 to 3-6, similar results were obtained for all L, a, and b values, and as a result, it is judged that the pre-setting temperature condition does not significantly affect dyeing. In addition, as a result of color evaluation of Examples 3-7 to 3-9 dyed with red dye, similar results were obtained for all L, a, and b values. As a result, the higher the pre-setting temperature, the better the dyeability. I could see the falling results. In addition, as a result of color evaluation of Examples 3-10 to 3-12 dyed with blue dye, similar results were obtained for all L, a, and b values, and the dyed fabric after treatment at a presetting temperature of 200°C (Example 3 -12) is judged to have poor dyeing properties. In addition, for Preparation Example 4 (CDP 50/72 + SPAN 40D), yellow and red colors were obtained after treatment at each pre-setting temperature (160℃, 180℃, 200℃). As a result of color evaluation of Examples 4-4 to 4-12 dyed with red and blue dyes, similar results were obtained for all L, a, and b values.

Test Example 5: Evaluation of dyeability according to dyeing temperature and concentration

Figure 14 shows the color (K/S) evaluation results according to dyeing temperature and concentration.

The dyeing properties of the composite knit according to Preparation Example 4 were evaluated by dyeing temperature (100°C, 120°C) and dye concentration (0.05, 0.1, 1, 2, 4% o.w.f.), and the light/washing fastness results are listed in Table 16 below. The color evaluation results through CCM are listed in Table 17 below.

division dyeing Washing fastness daylight
Fastness dyes density
(%owf) temperature Acetate Cotton Nylon PET Acrylic Wool Color
Change Example 5-1 Red 0.05 100℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-2 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-3 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-4 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-5 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-6 Yellow 0.05 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-7 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-8 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3-4 Example 5-9 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-10 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-11 Blue 0.05 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-12 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-13 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 5-14 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-15 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-16 Red 0.05 120℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-17 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 5-18 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-19 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-20 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-21 Yellow 0.05 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-22 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-23 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3-4 Example 5-24 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-25 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-26 Blue 0.05 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-27 0.1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 5-28 One 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 5-29 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 5-30 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3

division dyeing color evaluation dyes density
(%owf) temperature L a b dE K/S Example 5-1 Red 0.05 100℃ 73.15 33.17 -4.85 - - Example 5-2 0.1 68.08 40.39 -4.12 8.85 166.5 Example 5-3 One 50.54 58.76 2.47 34.93 947.5 Example 5-4 2 44.81 61.09 7.57 41.68 1780.7 Example 5-5 4 41.44 60.21 10.61 44.45 2433.4 Example 5-6 Yellow 0.05 88.08 -0.44 27.61 - - Example 5-7 0.1 86.56 1.73 36.24 9.03 162.7 Example 5-8 One 79.25 14.89 65.51 41.83 825.8 Example 5-9 2 75.56 22.29 77.39 56.13 1725.4 Example 5-10 4 70.3 25.03 79.77 60.71 2916.6 Example 5-11 Blue 0.05 74.28 -13.76 -19.7 - - Example 5-12 0.1 68.55 -13.9 -25.07 7.85 168.2 Example 5-13 One 47.05 -10.31 -36.61 32.24 954.2 Example 5-14 2 37.12 -5.34 -38.29 42.39 1987.6 Example 5-15 4 31.4 -0.51 -38.25 48.56 2783.2 Example 5-16 Red 0.05 120℃ 73.16 30.62 -2.26 - - Example 5-17 0.1 67.14 38.87 -2.14 10.21 177.8 Example 5-18 One 49.54 58.42 3.07 36.86 1012.6 Example 5-19 2 45.07 60.47 7.41 42.11 1672.1 Example 5-20 4 40.12 59.18 12.66 46.15 2685.8 Example 5-21 Yellow 0.05 84.94 1.19 26.39 - - Example 5-22 0.1 84.24 3.06 34.89 8.73 144.4 Example 5-23 One 77.66 16.6 68.1 45.06 775.4 Example 5-24 2 75.56 21.26 75.36 53.75 12.06.5 Example 5-25 4 71.76 28.3 83.6 64.67 2361.2 Example 5-26 Blue 0.05 74.64 -14.09 -13.33 - - Example 5-27 0.1 67.93 -15.08 -20.57 9.92 182.6 Example 5-28 One 44.35 -9.93 -36.44 38.32 1227.8 Example 5-29 2 36.84 -5.55 -38.05 45.97 2138.8 Example 5-30 4 29.91 0.54 -37.53 52.92 3154.2

According to Figure 14 and Tables 16 and 17, Examples 5-1 to 5-5 had a washing fastness of grade 4-5, showing excellent fastness even at high concentrations, and light fastness of grade 3, maintaining fastness even at high concentrations. Additionally, the L value decreased with increasing concentration, the a value increased from 33.17 to 60.21 when the concentration increased from 0.05 to 4.0% o.w.f., and the b value increased from -4.85 to 10.61 when the concentration increased from 0.05 to 4.0% o.w.f. increased, and an increase in dyeing amount was confirmed through dE, concentration, and K/S. Examples 5-6 to 5-10 had washing fastness of grade 4-5, showing excellent fastness even at high concentrations, and light fastness of 0.1%. o.w.f. Hereinafter, from level 3, 1.0% o.w.f. to level 3-4, 2.0% o.w.f. From the above, the fastness increased to grade 4 even at high concentrations. Additionally, the L value decreased with increasing concentration, the a value increased from -0.44 to 25.03 when the concentration increased from 0.05 to 4.0% o.w.f., and the b value increased from 27.61 to 79.77 when the concentration increased from 0.05 to 4.0% o.w.f. increased, and the increase in dyeing amount was confirmed through dE, concentration, and K/S.

In Examples 5-11 to 5-15, the washing fastness was grade 4-5, showing excellent fastness even at high concentrations, and the light fastness was grade 3, maintaining fastness even at high concentrations. Additionally, the L value decreased with increasing concentration, the a value increased from 33.17 to -13.76 to -0.51 when the concentration increased from 0.05 to 4.0% o.w.f., and the b value increased from 0.05 to 4.0% o.w.f. It decreased from -19.7 to -38.25, and an increase in dyeing amount was confirmed through dE, concentration, and K/S.

Examples 5-16 to 5-20 had a washing fastness of grade 4-5, showing excellent fastness even at high concentrations, and a sunlight fastness of grade 3, maintaining fastness even at high concentrations. Additionally, the L value decreased with increasing concentration, the a value increased from 30.62 to 59.18 when the concentration increased from 0.05 to 4.0% o.w.f., and the b value increased from -2.26 to 12.66 when the concentration increased from 0.05 to 4.0% o.w.f. increased, and the increase in dyeing amount was confirmed through dE, concentration, and K/S.

Examples 5-21 to 5-25 have washing fastness of grade 4-5, showing excellent fastness even at high concentrations, and light fastness at 0.1% o.w.f. Hereinafter, from level 3, 1.0% o.w.f. to level 3-4, 2.0% o.w.f. From the above, the fastness increased to grade 4 even at high concentrations. Additionally, the L value decreased with increasing concentration, the a value increased from 1.19 to 28.3 when the concentration increased from 0.05 to 4.0% o.w.f., and the b value increased from 26.39 to 83.6 when the concentration increased from 0.05 to 4.0% o.w.f. It increased, and the increase in dyeing amount was confirmed through dE, concentration, and K/S.

Examples 5-26 to 5-30 had a washing fastness of grade 4-5, showing excellent fastness even at high concentrations, and light fastness of grade 2.5-3, maintaining fastness even at high concentrations. Additionally, the L value decreased with increasing concentration, and the a value decreased at a concentration of 2.0% o.w.f. There was no further increase from above, and the b value decreased from -13.33 to -37.53 when the concentration increased from 0.05 to 4.0% o.w.f., and the increase in dyeing amount increased to 4.0 o.w.f. It decreased from above.

According to Figure 14, similar K/S results were shown except for Blue and Yellow 1.0 % o.w.f., and it is judged that the difference in dyeability due to temperature difference is not significant. In the case of leveling temperature during dyeing, there was no significant difference between 100℃ and 120℃.

Test Example 6: Evaluation of dyeing rate over time

Using a dye-o-meter, the dyeing rate over time was evaluated when dyeing the composite knitted fabric according to Preparation Example 4 with CDP dye (ED type)_Yellow, Red, Blue (2.0 % o.w.f.), and the results are shown in Figure 15. .

According to Figure 15, the dyeing rate of CDP dye (ED type)_Yellow (2.0 % o.w.f.) increased rapidly between 50 and 80 minutes, and showed a dyeing rate of over 90% over 80 minutes. In addition, the dyeing rate of CDP dye (ED type) _ Red (2.0 % o.w.f.) dye increased rapidly between 40 and 70 minutes, and showed a dyeing rate of over 90% over 80 minutes. In addition, the dyeing rate of CDP dye (ED type) _ Blue (2.0 % o.w.f.) dye increased rapidly between 40 and 60 minutes, and showed a dyeing rate of over 90% over 80 minutes.

Test Example 7: Evaluation of dyeing properties according to the addition of networt

An evaluation was conducted to determine the effect of the conditions for adding netweed during dyeing process on the dyeability of the fabric. After dyeing with yellow, red, and blue dyes, the color change of the fabric was evaluated by changing the concentration of netweed and treated as shown in the table below. 18 and FIG. 16.

division dyeing color evaluation Dyes and Concentrations Amount of pepper added L a b dE K/S Control Example 1-1 CDP dye
(ED type)
Yellow
2% owf - 46.15 59.54 7.1 - - Example 6-1 4g/l 46.42 60.08 6.76 0.7 99.7 Example 6-2 8g/l 47.16 59.41 6.22 1.35 90.9 Example 6-3 12g/l 47.14 59.68 6.32 1.27 91.9 Control Example 1-2 CDP dye
(ED type)
Red 2%owf - 76.95 23.31 75.19 - - Example 6-4 4g/l 77.42 22.74 74.69 0.89 94.5 Example 6-5 8g/l 77.24 23.13 74.77 0.54 96.2 Example 6-6 12g/l 76.97 23.08 74.91 0.36 98.6 Control Example 1-3 CDP dye
(ED type)
Blue 2% - 38.66 -4.82 -37.46 - - Example 6-7 4g/l 39.07 -5.32 -37.72 0.7 99.4 Example 6-8 8g/l 38.81 -4.87 -37.35 0.19 98.8 Example 6-9 12g/l 38.8 -4.86 -37.44 0.14 99.2

According to Figure 16 and Table 18, in the case of Examples 6-1 to 6-3, similar results were obtained for the L, a, and b values of the fabrics for each concentration of netweed when dyed with yellow dye, and the concentration of netweed when dyed with yellow dye It was found that there was a small effect on. In addition, in the case of Examples 6-4 to 6-6, similar results were obtained for all L, a, and b values of the fabric at each concentration of Mango when dyed with red dye, and when dyed with red dye, The lower the concentration of manganese, the higher the concentration difference value.

In addition, in the case of Examples 6-7 to 6-9, when dyed with blue dye, similar results were obtained for the L, a, and b values of the fabric for each concentration of netweed, and when dyed with blue dye, the lower the concentration of netweed, the lower the concentration difference value. appeared high.

Test Example 8: Evaluation of dyeability according to washing conditions

Figure 17 shows the results of evaluating the dyeability of composite knitted fabrics according to the washing temperature for each dye.

A test was conducted to determine the effect of washing conditions during dyeing processing on the dyeability of the fabric, and the washing temperature of Fabrics in Production Examples 2 and 4 (CDP 50/72 + SPAN 40D) dyed with each of Yellow, Red, and Blue dyes was tested. After treatment by changing the conditions to 45°C, 70°C, and 95°C, the dye fastness and color change were evaluated and are listed in Tables 19 and 20 below.

division composite knitted fabric defensive
temperature Washing fastness daylight fastness Acetate Cotton Nylon PET Acrylic Wool Color
Change Control Example 2-1 Production example 2 - 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Example 7-1 45℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3-4 Example 7-2 70℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-3 95℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Control Example 2-2 Production example 2 - 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 7-4 45℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 7-5 70℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Example 7-6 95℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Control Example 2-3 Production example 2 - 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Example 7-7 45℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Example 7-8 70℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-9 95℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Control Example 2-4 Production example 4 - 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-10 45℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-11 70℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-12 95℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4 Control Example 2-6 Production example 4 - 4-5 4-5 4-5 4-5 4-5 4-5 4-5 3 Example 7-16 45℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 7-17 70℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3 Example 7-18 95℃ 4-5 4-5 4-5 4-5 4-5 4-5 4-5 2-3

division composite fiber defensive
temperature color evaluation L a b dE K/S Control Example 2-1 Production example 2 - 77.24 22.91 75.22 - - Example 7-1 45℃ 77.38 22.91 74.64 0.59 96.6 Example 7-2 70℃ 77.24 23.04 74.96 0.29 98.9 Example 7-3 95℃ 77.41 22.78 74.71 0.55 96.7 Control Example 2-2 Production example 2 - 46.02 60.72 6.86 - - Example 7-4 45℃ 46.01 60.19 6.7 0.55 97.7 Example 7-5 70℃ 45.86 60.14 7.03 0.62 99.0 Example 7-6 95℃ 46.22 59.96 6.83 0.78 95.2 Control Example 2-3 Production example 2 - 78.27 21.18 74.4 - - Example 7-7 45℃ 78.13 21.53 74.0 0.55 99.4 Example 7-8 70℃ 78.0 21.59 74.16 0.55 101.0 Example 7-9 95℃ 78.21 20.97 73.43 1.0 96.6 Control Example 2-4 Production example 4 - 47.1 61.55 5.52 - - Example 7-10 45℃ 46.62 61.3 6.08 0.78 103.8 Example 7-11 70℃ 46.52 61.5 6.39 1.05 106.2 Example 7-12 95℃ 47.64 60.56 5.56 1.12 91.7 Control Example 2-5 Production example 4 - 41.28 -6.82 -38.92 - - Example 7-13 45℃ 41.98 -7.25 -38.61 0.87 94.6 Example 7-14 70℃ 40.75 -6.61 -38.57 0.67 103.0 Example 7-15 95℃ 41.55 -6.95 -38.77 0.33 98.0 Control Example 2-6 Production example 4 - 38.76 -4.99 -37.85 - - Example 7-16 45℃ 39.27 -5.45 -37.72 0.7 97.0 Example 7-17 70℃ 39.06 -5.32 -37.67 0.48 98.1 Example 7-18 95℃ 39.13 -5.35 -37.74 0.53 98.0

According to Figure 17 and Tables 19 and 20, Examples 7-1 to 7-3 (CDP 50/72 single, Yellow) have a washing fastness of grade 4-5, which is excellent in fastness even at high water washing temperatures, and light fastness is It was found to be grade 3 to 4 at a washing temperature of 45 to 95°C. In addition, as a result of color evaluation at each washing temperature, similar results were obtained for all L, a, and b values, and it was found that the dE and concentration at each washing temperature were not large, so the temperature had little effect. In addition, Examples 7-4 to 7-6 (CDP 50/72 single, Red) had a washing fastness of grade 4-5, showing excellent fastness even at high water washing temperatures, and light fastness was grade 2.5-4 at a washing temperature of 45~95℃. In addition, as a result of color evaluation by washing temperature, similar results were obtained for all L, a, and b values, and it was found that the dE and concentration at each washing temperature were not large, so temperature had little effect.

In addition, Examples 7-7 to 7-9 (CDP 50/72 single, Blue) have a washing fastness of grade 4-5, showing excellent color fastness even at high water washing temperatures, and light fastness of 3~95°C at a washing temperature of 45~95°C. Appeared to be level 4. In addition, as a result of color evaluation by washing temperature, similar results were obtained for all L, a, and b values, and it was found that the dE and concentration at each washing temperature were not large, so temperature had little effect.

In addition, Examples 7-10 to 7-12 (CDP 50/72 double, Yellow) had a washing fastness of grade 4-5, showing excellent fastness even at high water washing temperatures, and light fastness of 3~ at a washing temperature of 45~95°C. Appeared to be level 4. In addition, as a result of color evaluation by washing temperature, similar results were obtained for all L, a, and b values. Below 90℃, dE and concentration at each washing temperature were not large, so temperature had little effect, but above 90℃, dyeing properties were poor. there was.

In addition, Examples 7-13 to 7-15 (CDP 50/72 double, Red) had a washing fastness of grade 4-5, showing excellent fastness even at high water washing temperatures, and light fastness of 3~ at a washing temperature of 45~95°C. Appeared to be level 4. In addition, as a result of color evaluation by washing temperature, similar results were obtained for all L, a, and b values, and it was found that the dE and concentration at each washing temperature were not large, so temperature had little effect.

In addition, Examples 7-16 to 7-18 (CDP 50/72 double, Blue) had a washing fastness of grade 4-5, showing excellent fastness even at high water washing temperatures, and light fastness of 2.5 ~ 2.5 at a washing temperature of 45 ~ 95 ℃. Appeared to be level 3. In addition, as a result of color evaluation by washing temperature, similar results were obtained for all L, a, and b values, and it was found that the dE and concentration at each washing temperature were not large, so temperature had little effect.

Test Example 9: Water repellency evaluation according to water repellent and concentration

After processing CDP 50/72 dyed with yellow dye with two types of non-fluorine water repellent at concentrations of 40 g/l, 80 g/l, and 120 g/l, the water repellency of Examples 8-1 to 8-6 is shown in Table 21 below, Shown in Figures 18 and 19.

division Water repellent treatment Water repellency water repellent density Control Example 3-1 No. 1 water repellent - 0 Example 8-1 40g/l 90 Example 8-2 80 g/l 95 Example 8-3 120 g/l 95 Control Example 3-2 Second water repellent - 0 Example 8-4 40g/l 95 Example 8-5 80 g/l 95 Example 8-6 120g/l 95

According to Figures 18, 19 and Table 21, the water repellency of the fabric treated with the first water repellent was 90 at 40 g/l, 95 at 80 g/l, and 95 at 120 g/l. When the concentration of the water repellent was 80 g/l or more, the water repellency was high. In addition, the water repellency of the fabric treated with the second water repellent was 95 at 40 g/l, 95 at 80 g/l, and 95 at 120 g/l, respectively. When l, the water repellency was 95, and when the concentration of the water repellent was more than 40 g/l, the water repellency was high.

Although the preferred embodiments of the present invention have been described above, those skilled in the art will be able to add, change, delete or modify components without departing from the spirit of the present invention as set forth in the patent claims. The present invention may be modified and changed in various ways by addition, etc., and this will also be included within the scope of rights of the present invention. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form. The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

Claims (20)

(a) A scouring step in which a composite knit of catch-on cation dyeable polyester (CDP) fibers and polyurethane (PU) fibers is pretreated with a scouring solution;
(b) a heat setting step of pre-setting the refined composite knitted fabric by heat treatment;
(c) a dyeing step of dyeing the heat-set composite knitted fabric; and
(d) a washing step of washing the dyed composite knitted fabric;
Dyeing method of composite knitted fabric including. According to paragraph 1,
A method for dyeing a composite knit, characterized in that the scouring solution contains at least one selected from the group consisting of a scouring agent, an emulsifier, a leveling penetrant, and a carrier dispersant. According to paragraph 2,
A method for dyeing a composite knit, characterized in that the scouring solution further contains sodium carbonate. According to paragraph 1,
A method for dyeing a composite knit, characterized in that the pretreatment in step (a) is performed for 30 to 60 minutes at a temperature of 70 to 90 ° C. According to paragraph 1,
A method of dyeing a composite knit, characterized in that the pre-setting in step (b) is performed for 1 to 5 minutes at a temperature of 150 to 220 ° C. According to paragraph 1,
A method of dyeing a composite knit, characterized in that the dyeing in step (c) is performed using an ED type CDP dye. According to clause 6,
A method of dyeing a composite knitted fabric, characterized in that the concentration of the ED type CDP dye is 0.01 to 10% owf (on the weight of fiber). According to paragraph 1,
A method of dyeing a composite knit, characterized in that the dyeing in step (c) is performed at a temperature of 80 to 150 ° C. for 10 to 100 minutes. According to paragraph 1,
Step (c)
(c-1) immersing the heat-set composite knitted fabric in a solution containing salt; and
(c-2) adding dye to the solution and dyeing the heat-set composite knit fabric immersed in the solution to produce a dyed composite knit fabric; A method of dyeing a composite knitted fabric comprising: According to clause 9,
A method for dyeing a composite knit, characterized in that the salt contains networt. According to paragraph 1,
A method for dyeing a composite knit, characterized in that the washing in step (d) is performed for 10 to 30 minutes at a temperature of 40 to 95 ° C. According to paragraph 1,
After step (d),
(e) producing a water-repellent composite knitted fabric by water-repelling the dyed composite knitted fabric with a water-repellent agent. According to clause 12,
A method for dyeing a composite knit, wherein the water repellent agent in step (e) includes at least one selected from the group consisting of a C6 fluorine water repellent, a C8 fluorine water repellent, a non-fluorine water repellent, a crosslinking agent, a penetrating agent, and a silicone water repellent. According to paragraph 1,
Before the dyeing method of the composite knitted fabric is step (a),
(a') manufacturing a composite knit including catch-on dyeable polyester (CDP) fibers and polyurethane (PU) fibers. A dyeing method for a composite knit, characterized in that it further comprises a. According to clause 14,
A method of dyeing a composite knit, characterized in that the denier of the catch-on dyed polyester (CDP) fiber is 30 Denier/50 Filament to 90 Denier/80 Filament. According to clause 14,
A method for dyeing a composite knit, characterized in that step (a) produces the composite knit by knitting catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers in a 10 to 40 gauge. According to clause 16,
A method of dyeing a composite knit, characterized in that the knitting is performed with any one selected from the group consisting of single knitting and double knitting. According to clause 14,
The dyeing method of a composite knitted fabric, characterized in that the ratio (CDP:PU) of catch-on dyed polyester (CDP) fibers and polyurethane (PU) fibers is 70:30 to 90:20. A composite knitted yarn manufactured according to the composite knitted dyeing method of claim 1. According to clause 18,
A composite knitted dyeing yarn, characterized in that the composite knitted dyeing yarn is used as an athleisure material.