KR20090132810A - Process of dyeing for wool/polylacticacid-fiber ply-yarn - Google Patents

Abstract

PURPOSE: A dyeing method for wool and ply-yarn of polylactic acid-fiber is provided to prevent degradation of property of wool and polylactic acid-fiber through pre-processing conditions, optimized dyeing conditions, and post-processing conditions etc. CONSTITUTION: A dyeing method for wool and ply-yarn of polylactic acid-fiber includes the following steps of: bonding wool spun yarn and polylactic acid-fiber spun yarn; refining the manufactured ply yarn in a neutral bath containing a polyoxyethylene alkyl ester-based scouring agent and water; dyeing the ply yarn with dissolved liquid; post-processing the dyed ply yarn; processing the ply yarn with a softening agent bath in which a silicon-based softener, CH3COOH and water are mixed; and evaporating moisture from the ply yarn.

Description

Process of Dyeing For Wool / Polylacticacid-fiber Ply-yarn}

The present invention is made of a twisted yarn of wool and polylactic acid fiber, which is a representative biodegradable fiber, pretreatment condition, optimal dyeing condition, post-dyeing, without deterioration of the properties of both wool and polylactic fiber It relates to a method of establishing a series of processes such as treatment conditions and post-weaving post-processing conditions.

The present invention relates to a twisted yarn of wool fibers and polylactic acid fibers, and more particularly, to dyeing and post-treatment methods of twisted yarns using wool fibers and polylactic acid fibers for the production of human-friendly high-quality wool blends suitable for the well-being era. It is about.

Wool uses animal hair, which is why dyeing is very difficult, unlike synthetic and other natural fibers. The tip of the wool is more exposed to sunlight, air, and rain, and is injured. The root of the wool is relatively less injured. In addition, since the degree of injury is different according to the type of sheep and the body part, and the thickness and length of the wool are varied, it is necessary to pay attention to the dye selection or dyeing conditions in order to prevent skitteriness during dyeing.

Wool has been commercialized a lot in outer clothing through blending with polyester and the like. Wool / polyester blends, for example, are dyed in yarn or fabric and sometimes top dyed. Immersion is done in HT package dyeing machines, overflows and automated jet dyeing machines. Sometimes in open winches. However, this dyeing method is not economical and environmentally friendly.

The current textile industry is not only a fashion-based apparel product, but technology development is intensifying toward well-being materials that have high functionality or human-friendly and environmental protection. In particular, we live in a synthetic textile-based garment environment, and we need to pay attention to biodegradable fibers that do not cause environmental problems when disposed of after use.

The biodegradable fibers may be defined as 'fibers in which the chains introduced into the fibers by the microorganisms are inorganicized', and representative biodegradable fibers include bamboo fibers, polylactic acid (PLA, polylactic acid) fibers, tencels and chitosans. Fiber, soybean fiber, and the like. Since the fiber is a human-friendly material, it can appeal to consumers with sensitive skin such as atopic dermatitis, and thus can be said to have high marketability.

Among these, PolyActic Acid (PLA) fiber can be used as a single fiber in the form of woven or knitted fabrics, or can be mixed with natural fibers such as cotton, wool, and dogs, and rayon, and is expected to be a new material with a light feel. Are gathering. However, considering the development of commercialization at this point, commercialization is insufficient.

Polylactic acid fiber has a soft touch with excellent lightness and drape, and has a low light refractive index and low light reflectance, so that clear color can be obtained, but melting point is 170 ℃ and glass transition temperature is about 57 ℃, which is low in heat resistance, weak in alkali, and dyed. There are many problems that need to be specifically solved for practical use because various dyes are not developed.

Since polylactic acid fiber has a crystalline aliphatic polyester structure, it can be dyed with a disperse dye because it has properties similar to those of polyester, but has a faster dyeing speed than general polyester. Therefore, if the existing polyester / wool blend dyeing processing technology is applied as it is, disperse dyes rapidly dyed in polylactic acid fibers come out again, causing contamination to the relative fibers and lowering the fastness. That is, the fall of fastness, low color development due to contamination, dichroic problems, and the like. In addition, the dyeing speed of polylactic acid fiber is faster than that of polyester, but since the amount of saturated dyeing is only 1/6 of the polyester, the final dyeing amount is reduced, which reduces dyeing efficiency. In addition, it is weak to heat, so 110 ℃ is the maximum possible temperature.

In addition, if the two-bath dyeing method of dyeing the polylactic fiber and then dyeing the wool to improve the fastness is applied, it becomes a factor that increases the production cost in terms of energy, water, and time than the one bath dyeing method. However, when dyeing wool dyed with acid dyes and polylactic acid dyed dyes in one bath together in one bath, contamination with the relative fibers and a decrease in color fastness are the biggest problems.

Therefore, in the present invention, in the dyeing and post-treatment process of the polylactic fiber of wool and polylactic acid fiber, which is a representative biodegradable fiber, pretreatment conditions and appropriate dyes do not deteriorate the physical properties of both wool and polylactic acid fiber, and contamination does not occur. It aims to produce environmentally friendly wool and polylactic fiber blend products by establishing a series of processes by providing selection, optimal dyeing conditions and post-dyeing conditions.

According to the present invention, the wool spun yarn and the polylactic acid fiber spun yarn are fed at a ratio of 30:70 to 70:30, and the splicing process of combining at soft water S 650 to 700 and 8000 to 9000 rpm. A refining process for 60 to 70 DEG C for 10 to 30 minutes in a neutral bath containing 0.1 to 0.3% by weight of an ester refining agent and water to remainder, an aromatic sulfonic acid leveling agent 0.3 to 0.7 owf after the refining step, and a sulfonate dispersant 0.3 -0.7 owf, CH ₃ COOH 0.8-1.5% owf, CH ₃ COONa 0.8-1.5% owf, wool protective agent containing ethoxylated fatty acid and polyhydric alcohol 3.0-5.0% owf, antifoam 0.3-0.7 owf and balance After preparing a dyeing bath containing water and adjusting the pH to 4.5-5.0, disperse the polylactic acid dye dye and wool dyeing acid dye at 45 ~ 55 ℃ in the dye bath to dissolve, 40 at 100 ~ 110 ℃ 1 bath dyeing process for dyeing the plywood yarn at the same time for ~ 50 minutes, After the dyeing process group a polyoxyethylene alkyl ester type refiner 0.1 to 0.3% by weight of NH ₄ OH 0.08~0.2 60 ~ 65 ℃ at pH 8 ~ 9 in the treatment solution after prepared by mixing water as a% by weight and the balance, 15 to 30 After the post-treatment process for a minute, after the post-treatment process, 0.1 to 0.3% by weight of the silicone-based softener, 0.03 to 0.08% by weight of CH ₃ COOH, and the remainder were added to the softening bath mixed with water and treated for 50 to 60 ° C. for 15 to 30 minutes. A softening agent processing step, and the dyeing method of the twisted yarn of the wool and polylactic acid fiber, characterized in that it consists of an infrared drying process to pass through the infrared dryer after the softening agent treatment step to evaporate moisture at a low temperature.

Hereinafter, the present invention will be described in more detail.

In order to manufacture the wool and polylactic fiber conjugated twisted yarn products of the present invention, a series of processes such as twisted yarn manufacture, pretreatment, dyeing, post-treatment, weaving, and post-processing are performed.

First, the wool spun yarn and polylactic acid fiber spun yarn are fed at a ratio of 30:70 to 70:30 and coalesced at soft water S 650 to 700 and 8000 to 9000 rpm. For example, wool spun yarn (50'S / 1 Each of the polylactic acid spun yarns 30'S / 1 (cotton number) is combined at a ratio of 50:50 to prepare wool / polylactically bonded twisted yarn 50'S / 2 (number of times). To produce a blended yarn, polylactic acid fiber having a length of 65 mm or more is required, but the produced polylactic acid fiber is 38 to 51 mm in length and relatively short. It is advisable to use Italian-made FADIS for the copier and a Japanese-made MURATA machine.

The twisted yarn is subjected to a pretreatment step of removing impurities before the dyeing step. Conventional wool and polyester blend yarns used NaOH, a refining agent and a strong alkali during the refining process, but the polylactic acid fibers used in the present invention have weak alkali resistance, so that 0.1 to 0.3% by weight of polyoxyethylene alkyl ester refining agent In a neutral bath containing water for 60 to 70 ℃, 10-30 minutes.

Next, in order to dye the twisted yarn, the optimal dyeing temperature is set to 100 ~ 110 ℃ in consideration of the properties of polylactic acid fiber and wool having low heat resistance. Wool and polyester blended yarns are dyed at 100 to 120 ° C, but polylactic acid fibers may be dyed at more than 120 ° C, resulting in reduced strength. In addition, as a result of dyeing polylactic acid fiber at 110 ° C. with a disperse dye used for dyeing wool and polyester blend yarns, the amount of dyes may be less than 50 to 60% compared to the case of polyester dyeing. In order to improve this, dyes were dispersed at 110 ° C. with various dyes such as acetate, S, E, and SE types. Can be represented. However, even if these dyes have a high dyeing rate in yellow, red, and blue monochromatic dyes, there is a problem in that one dye has a low dyeing amount in the mixed dyeing of three dyes. Therefore, in order to select dispersion dyes for dyeing polylactic fiber, it should be selected through sufficient pre-test for individual dyes, not collectively.

Dyeing baths are used to make dyes more accessible and homogeneous, aromatic sulfonic acid leveling agents 0.3 to 0.7 owf, sulfonate dispersants 0.3 to 0.7 owf, CH ₃ COOH 0.8 to 1.5% owf, CH ₃ COONa 0.8 to 1.5% owf, ethoxylation Prepare a dyeing bath containing 3.0-5.0% owf of fatty acid and polyhydric alcohol, 0.3-0.7 owf of anti-foaming agent, and water with balance, and adjust the pH to 4.5-5.0 Disperse dyes and acid dyes for wool dyeing at 45 ~ 55 ℃ to prepare by dissolving. It is preferable to use a mineral oil-based antifoaming agent or a silicone-based antifoaming agent. Dyeing is performed one bath dyeing for 40 to 50 minutes at 100 ~ 110 ℃, wool and polylactic acid fiber at the same time.

In the case of general wool / polyester twisted yarn, unfixed dye is removed by reducing washing with Na ₂ S ₂ O ₄ and NaOH to reduce the fastness after dyeing. If the sum CS is not subjected to reduction cleaning in consideration of the weak alkali, then a solution of water as a polyoxyethylene alkyl ester type refiner 0.1 to 0.3 wt% and about alkaline NH ₄ OH 0.08~0.2 wt% and the balance The solution is added to the treatment solution and treated after 60 to 65 ° C. for 15 to 30 minutes at pH 8-9.

Next, a softener treatment is performed to physically stabilize the wool and polylactic acid fiber. The softener is 0.1 to 0.3 wt% of silicone-based softener, 0.03 to 0.08 wt% of CH ₃ COOH, and 50 to 60 wt% of the softener is mixed with water. Process for 15 to 30 minutes at ℃. It is preferable to use the silicone type softener which contains a polyethylene / polysiloxane compound. After the softener treatment, water is passed through an infrared dryer to evaporate moisture at low temperatures.

In the present invention, the two baths can be dyed as follows for dyeing the black color.

Combined process of feeding wool spun yarn and polylactic acid fiber spun yarn at a ratio of 30:70 to 70:30 and combining at soft water S 650 to 700 and 8000 to 9000 rpm, the prepared twisted yarn is a polyoxyethylene alkyl ester-based refiner 0.1 A refining process for 60 to 70 DEG C for 10 to 30 minutes in a neutral bath containing -0.3% by weight and water in the remainder, after the refining step, a sulfonate dispersant 0.3 to 0.7 owf, CH ₃ COOH 0.8 to 1.5% owf, Prepare a dyeing bath containing CH ₃ COONa 0.8-1.5% owf, wool protecting agent 3.0-5.0% owf containing ethoxylated fatty acid and polyhydric alcohol, anti-foaming agent 0.3-0.7% owf and remainder and pH 4.5- Dispersion dye was added to the dyeing bath while adjusting to 5.0 to dye the polylactic acid fiber portion first, followed by 0.1 to 0.3% by weight of Na ₂ S ₂ O _4, 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refiner, NH ₄ Reduction and washing process treated with a cleaning solution containing water as 0.1 to 0.3% by weight of OH. After preparing a mixture of water as a two-bath dyeing process, the dyeing process after a polyoxyethylene alkyl ester type refiner 0.1 to 0.3% by weight of NH ₄ OH 0.08~0.2 wt% and the balance of dyeing a coarse fiber portion after wool with acid dyes A post-treatment step of treating the solution at a pH of 8-9 at 60-65 ° C. for 15-30 minutes, mixing 0.1-0.3 wt% of the silicone softener with 0.03-0.08 wt% of CH ₃ COOH and remainder after the post-treatment. Wool and polylactic acid, characterized in that it comprises a softening agent treatment process for processing 50 ~ 60 ℃, 15-30 minutes in a softening bath, infrared drying process for evaporating moisture at a low temperature by passing through the infrared dryer after the softening agent treatment process. A method of dyeing a twisted yarn of a fiber is provided.

Since the two-color dyeing method of the black color is a deep color into which a large amount of dye is added, the two-color dyeing is performed after dyeing the polylactic fiber in consideration of the color fastness and then dyeing the wool fiber. After dyeing the lactic fiber, mild reduction with a washing solution containing 0.1 to 0.3% by weight of Na ₂ S ₂ O ₄ , 0.1 to 0.3% by weight of polyoxyethylene alkyl ester type refining agent and 0.1 to 0.3% by weight of NH ₄ OH. The dyeing of the wool fibers as in the general wool dyeing method, but formic acid is added. After wool dyeing, it is added to a post-treatment solution containing 0.1 to 0.3% by weight of a polyoxyethylene alkyl ester-based refining agent, 0.08 to 0.2% by weight of slightly alkaline NH ₄ OH, and the remainder of water at 50 to 60 ° C for 15 to 30 minutes. Process and dry by passing through an infrared dryer.

In the present invention, weaving, dyeing and post-treatment using the dyed yarn, after the soft winding process to rewind the wrapped yarn in the dyeing process, after the weaving.

Weaving conditions can be the following as a representative example. Density 19D × 4 = 76, number of types 64 units / inch. Pain width 68 inches, dough width 64 inches, processing width 60 inches, weight 13.12 (Oz / yd), tissue 2/2 Twill can be made.

Woven fabrics are made into the final product through the process of moss → refining → total hair → dry heat setting → decoating (humid heat setting) → softening treatment → atmospheric pressure heating process. Singeing is a process to burn the fine hairs of the surface to show a smooth surface and a clear pattern, and refining is 0.01 to 0.03% by weight of a polyoxyethylene alkyl ester-based refining agent, NH ₄ OH 0.01 ~ 0.03% by weight and remainder is added to a scouring bath containing water, 40 ~ 50 ℃ for 20 ~ 30 minutes at pH 8 ~ 9, followed by hot water washing process, and then 30 ~ 50 at 100 ~ 110 ℃. Dry for seconds. Shearing is a process of cutting off the remaining hair on the surface with a three-stage knife, and in the dry heat setting, it was conducted for 30 to 50 seconds at 120 to 130 ° C. in consideration of the weak heat resistance of the polylactic acid fiber. Deketizing (wet heat setting) is a process to stabilize the shape by blowing steam at 100 ~ 110 ℃ to improve dimensional stability and feel. After the above process, for soft touch, it is immersed in an aqueous solution containing 0.1 to 0.3% by weight of a silicone softener, and squeezed with mangle and dried at 100 to 110 ° C. for 30 to 50 seconds. Next, an atmospheric pressure heating process is performed at 60-70 degreeC for 30-50 seconds.

By the above series of processes, a high quality blend material product of polylactic acid fiber and wool, which is a biodegradable fiber, is manufactured.

Therefore, according to the present invention, it is a combination of environmentally friendly wool and polylactic acid fiber by utilizing the properties of polylactic acid fiber having lightness, depth of color and biodegradable properties while having properties such as fastness similar to existing wool and polyester blend products. Can provide twisted products.

The following examples are given as non-limiting examples of the method for treating wool and polylactic acid blended products of the present invention.

Example 1

50:50 wool yarn (50'S / 1) and polylactic acid yarn (30'S / 1) are used at the ratio of 50:50 for the plywood for Italian FADIS and for the use of Japanese MURATA equipment. Wool / polylactic acid-poly-synthetic yarn 50'S / 2 (number of times) was prepared by combining at S 680 and 8500 rpm. This process applies to all color products except black.

Pretreatment (refining) Dye preparation Dye injection dyeing After treatment Softener  process IR drying 60 ℃ 20min 50 ℃ 50 ℃ 110 ℃ 40min 60 ℃ 20min 50 ℃ 20min Polyoxyethylene Alkyl Ester Refining Agent (Sunmorl MS-40) 0.1% by weight Water 99.99% by weight (pH neutral) CH ₃ COOH 1.0% owf CH ₃ COONa 1.0% owf Aromatic sulfonic acid leveling agent (Teberol MKS) 0.5% owf sulfonate type dispersant (Doregal ASA) 0.5% owf wool protective agent (Hexapol WA) 4.0% owf antifoaming agent (Teberol ELNP) 0.5 % owf balance: water Disperse Dye Acid Dye pH 4.5 NH ₄ OH 0.1 wt% Polyoxyethylene Alkyl Ester Refining Agent (Sunmorl MS-40) 0.1 wt% Water 99.80 wt% (pH8.5) CH ₃ COOH 0.05 wt% Silicone Softener 0.2 wt% Water 99.75 wt%

In order to obtain the three colors of beige, light beige, wine when the process of Table 1 was applied to the dye and concentration of the following Table 2.

 Dye name Density by Color (% o.w.f.)  Remarks Example 1 Conditions beige light beige wine Lumacel Yellow H-EF 0.200 0.050 0.040 Disperse Dyes Lumacel Scarlet H-EF 0.055 - 2.500 Disperse Dyes Lumacel Navy H-EF 0.045 0.015 1.200 Disperse Dyes Lanaset Yellow 2R 0.060 - 0.250 Acid dyes Lanaset Red G 0.015 0.005 0.250 Acid dyes Lanaset Gray Gray - 0.005 - Acid dyes

Example 2

Using the same wool and polylactic acid twisted yarn as in Example 1, a two-bath dyeing process for black color dyeing is shown in Table 3 below. This process is applied to the case of black color that requires attention to fastness because a large amount of dye is added, and dyed the polylactic fiber first and then the wool.

Pretreatment (refining) Dye preparation dyes input Polylactic acid fiber dyeing Reduction Cleaning Wool dyed After treatment Softener Treatment 60 ℃ 20min 50 ℃ 50 ℃ 110 ℃ 40min 60 ℃ 20min 90 ℃ 70min Acid Dye 60 ℃ 20min 50 ℃ 20min Polyoxyethylene Alkyl Ester Refining Agent (Sunmorl MS-40) 0.01% by weight of water 99.99% by weight (pH neutral) CH ₃ COOH 1.0% owf CH ₃ COONa 1.0% owf Sulfonate Dispersant (Doregal ASA) 0.5% owf Wool Protector (Hexapol WA) 4.0% owf Antifoam (Teberol ELNP) 0.5% owf Residue: Water Disperse dyes pH 4.5 Hydrosulfite (Na ₂ S ₂ O ₄₎ 0.1 wt% NH ₄ OH 0.1 wt% Refiner (SunmorlMS-40) 0.1 wt% Water 99.70 wt% (pH8.5) CH ₃ COOH 1.0% owf Aromatic sulfonic acid leveling agent (Teberol MKS) 0.3% owf Wool protection agent (Hexapol WA) 2.0% owf Antifoaming agent (Teberol ELNP) 0.5% owf HCOOH 2.0% owf balance: water NH ₄ OH 0.1 wt% Polyoxyethylene Alkyl Ester Refining Agent (SunmorlMS-40) 0.1 wt% Water 99.80 wt% (pH8.5) CH ₃ COOH 0.05 wt% Silicone Softener (Rayolan FRS) 0.2 wt% Water 99.75 wt%

When the process of Table 3 was applied to the dye and the concentration of the following Table 4.

Dye name Density by Color (% o.w.f.) Remarks Lumacron Black RD-3GM 4.000 Disperse Dyes Diamond Black PV 0.750 Acid dyes

Example 3

The dyeing yarn of beige, light beige, and wine colors of Example 1 was manufactured with a checkered fabric with a FAST weaving machine. Density 19D × 4 = 76, Number of types 64 units / inch, Pain width 68 inches, Raw paper width 64 inches, Processing width 60 inches, Weight (Oz / yd) 13.12, Structure 2/2 Twill RPM420, Efficiency 82% Table 4 shows the post-treatment process performed after weaving with a thread cutting-tilt 2.0 weft of 0.6.

Refining Hot water tax dry Total Dry heat setting Decatering (Heat setting) Softener Treatment (pad → dry) Atmospheric pressure 40 ℃ 30min 40 ℃ 30min 100 ℃ 30sec 130 ℃ 30sec 100 ℃ 100 ℃ 30sec 60 ℃ 30min NH ₄ OH 0.01 wt% Polyoxyethylene Alkyl Ester Refining Agent (Sunmorl MS-40) 0.01 wt% Water 99.98 wt% (pH8.5) Silicone Softener (Rayolan FRS) 0.2% by weight Water 99.80% by weight

Example 4

Fabrics were prepared in the same manner as in Example 3, using the dyed yarn of the black color of Example 2.

Comparative Example 1

Wool / polyester twisted yarn was treated using the same dye and other processing conditions as in Example 1 using polyester fibers instead of the polylactic acid fibers of Example 1.

Comparative Example 2

Using polyester fibers instead of the polylactic acid fibers of Example 2, wool / polyester twisted yarns were treated via the same dyes and other processing conditions as in Example 2.

Comparative Example 3

Wool / polyester twisted yarn was prepared using polyester fibers instead of the polylactic acid fibers of Example 3, and fabrics were prepared using the same dyes and other processing conditions as in Example 3.

[Comparative Example 4]

Instead of the polylactic acid fiber of Example 4, using a polyester fiber to prepare a wool / polyester twisted yarn and to prepare a fabric by using the same dye and other processing conditions as in Example 4.

The basic physical properties of the products of Examples 1 to 2 and Comparative Examples 1 to 2 were tested to obtain results as shown in Table 6 below.

 Test Items Test result  Test Methods beige light beige wine black Example 1 Comparative Example 1 Example 1 Comparative Example 1 Example 1 Comparative Example 1 Example 2 Comparative Example 2 Wash fastness (grade) nylon pollution 4 to 5 4 to 5 4 to 5 4 to 5 4 4 to 5 3 to 4 4 KSKISO105C06A1S Daylight fastness (grade) fading 4 4 4 4 4 4 3 3 KSKISO105 B02 Friction fastness (grade) pollution 5 5 5 5 4 to 5 4 to 5 4 to 5 4 to 5 KSK0650 Dry Friction Sweat fastness (grade) Nylon contamination 4 4 4 4 3 to 4 4 4 4 to 5 KSKISO105E04 Acid Sweat

The basic physical properties of the products of Examples 3 to 4 and Comparative Examples 3 to 4 were tested to obtain results as shown in Table 7 below.

 Test Items Test result  Test Methods Checkered fabric Black color fabric Example 3 Comparative Example 3 Example 4 Comparative Example 4 Wash fastness (grade) nylon pollution 4 4 to 5 3 to 4 4 KSKISO105C06A1S Daylight fastness (grade) fading 4 4 3 3 KSKISO105 B02 Friction fastness (grade) pollution 4 to 5 4 to 5 4 to 5 4 to 5 KSK0650 Sweat fastness (grade) Nylon contamination 3 to 4 4 4 4 to 5 KSKISO105E04 Tensile strength (N) Slope 544.3  Tilt 560.4 Slope 554.3 Tilt 567.2 KSK0520 Grab Method Weft 531.6 Weft 524.5 Weft 504.1 Weft 514.2 Tear strength (N) Slope 16.6 Slope 16.3 Slope 16.1 Slope 16.2 KSK0535 Pendulum Method Weft 14.1 Weft 14.0 Weft 14.1 Weft 14.0 Dimensional rate of change (%) Tilt -2.0 Tilt -2.1 Slope -2.3 Slope -2.3 AATCC135 Weft -2.4 Weft -2.4 Weft -2.5 Weft -2.4

In the results of Table 6 and Table 7, the polylactic fiber and wool composite yarns and fabrics were the same or about 0.5 grades lower than that of wool / polyester composite yarns, but they were similar, and the lowest grade was also common. It appeared that it is more than 3-4 grade which is the acceptance line of product, and it shows that it is suitable for production. Comparing the results of the fastness of Table 6 and Table 7, it can be seen that the lowest result is the result of the fabric during the dye yarn test, and the daylight fastness is more affected by the characteristics of the dye structure itself than the effects of post-treatment such as water washing. The results were the same.

Claims (3)

Combined process of supplying wool spun yarn and polylactic acid fiber spun yarn in the ratio of 30: 70 ~ 70: 30 and combining them in soft water S 650 ~ 700, 8000 ~ 9000 r.p.m., A refining process of treating the prepared twisted yarn is 60 to 70 ℃, 10 to 30 minutes in a neutral bath containing 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refining agent and the balance as water, After the refining process, aromatic sulfonic acid leveling agent 0.3 to 0.7 owf, sulfonate dispersant 0.3 to 0.7 owf, CH ₃ COOH 0.8 to 1.5% owf, CH ₃ COONa 0.8 to 1.5% owf, ethoxylated fatty acid and polyhydric alcohol Prepare a dyeing bath containing 3.0 ~ 5.0% owf of wool protecting agent, 0.3 ~ 0.7 owf of anti-foaming agent, and balance with water and adjust the pH to 4.5-5.0 while dispersing dye for polylactic acid fiber dyeing and acid for wool dyeing 1 bath dyeing step of dyeing the conjugated yarn at the same time 40 to 50 minutes at 100 ~ 110 ℃ after dissolving the dye at 45 ~ 55 ℃ After the dyeing step, in the post-treatment solution prepared by mixing 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refining agent, 0.08 to 0.2% by weight of NH ₄ OH, and the balance, water at 60 to 65 ° C and 15 to 30 at pH 8-9. Post-treatment process, After the post-treatment step, a softener treatment step of treating the softener bath with 0.1 to 0.3% by weight of silicon-based softener, 0.03 to 0.08% by weight of CH ₃ COOH and remainder, and then treating the solution for 50 to 60 ° C. for 15 to 30 minutes; The dyeing method of the twisted yarn of the wool and the polylactic acid fiber, characterized in that the infrared drying step after passing through the softening agent treatment step to pass through the infrared dryer to evaporate moisture at a low temperature. Combined process of supplying wool spun yarn and polylactic acid fiber spun yarn in the ratio of 30: 70 ~ 70: 30 and combining them in soft water S 650 ~ 700, 8000 ~ 9000 r.p.m., A refining process of treating the prepared twisted yarn is 60 to 70 ℃, 10 to 30 minutes in a neutral bath containing 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refining agent and the balance as water, 0.3-0.7 owf of sulfonate-based dispersant after the refining process, 0.8-1.5% owf of CH ₃ COOH, 0.8-1.5% owf of CH ₃ COONa, wool protective agent containing ethoxylated fatty acid and polyhydric alcohol 3.0-5.0% owf, Prepare a dyeing bath containing 0.3 to 0.7 owf and an anti-foaming water, and adjust the pH to 4.5 to 5.0, disperse the dye in the dyeing bath, and dye the polylactic acid fiber portion first, and then Na ₂ S ₂ O ₄ 0.1 to 0.3% by weight, 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refining agent, 0.1 to 0.3% by weight of NH ₄ OH, and the remainder after washing with a washing solution containing water as a part of wool fiber with acid dye Bath dyeing process to dye cloth, After the dyeing step, in the post-treatment solution prepared by mixing 0.1 to 0.3% by weight of polyoxyethylene alkyl ester-based refining agent, 0.08 to 0.2% by weight of NH ₄ OH, and the balance, water at 60 to 65 ° C and 15 to 30 at pH 8-9. Post-treatment process, After the post-treatment step, a softener treatment step of treating the softener bath with 0.1 to 0.3% by weight of silicon-based softener, 0.03 to 0.08% by weight of CH ₃ COOH and remainder, and then treating the solution for 50 to 60 ° C. for 15 to 30 minutes; The dyeing method of the twisted yarn of the wool and the polylactic acid fiber, characterized in that the infrared drying step after passing through the softening agent treatment step to pass through the infrared dryer to evaporate moisture at a low temperature. The process of weaving after soft winding the combined dyeing yarns of wool and polylactic acid fibers of the infrared drying process according to claim 1 or 2, After the woven fabric is woven, it is added to a refining bath containing 0.01 to 0.03% by weight of a polyoxyethylene alkyl ester-based refining agent, 0.01 to 0.03% by weight of NH ₄ OH, and the remainder to 40 to 50 ° C. at a pH of 8 to 9 After 20-30 minutes of treatment, Dry at 100-110 ° C for 30-50 seconds, dry, heat set at 120-130 ° C for 30-50 seconds, de-catalyze at 100-110 ° C, and contain 0.1-0.3% by weight of silicone softener Soaked in an aqueous solution, squeezed with mangle, dried for 30 to 50 seconds at 100 to 110 ° C, and a jointed fabric of wool and polylactic acid fiber, consisting of a series of processes for performing an atmospheric pressure heating process at 60 to 70 ° C for 30 to 50 seconds Method of dyeing.