KR20060102292A - Production and package dyeing of lyocell/silk blend yarn for embroidery - Google Patents

Abstract

  It relates to a single dyeing process for uniform dyeing of a lion cell / silk fiber blend yarn to produce a lion cell / dog fiber embroidery thread.

 For the sake of advanced quality, as the blending ratio of silk fiber increases, the probability of occurrence of discoloration increases. Therefore, optimal conditions for dyeing that can suppress the occurrence of dichroism are necessary.

 Variables of the single dyeing process include dye coloring characteristics, dyeing temperature, and retention time of the reactive dyes.

   Physical and gloss characteristics were evaluated before and after dyeing the developed lion cell / dog fiber embroidery thread. The evaluation variables demonstrate the advanced embroidery thread developed through evaluation of physical properties such as strength, elongation, friction resistance, and fastness, and quantitative evaluation of gloss and staining.

Lion cell / dog fiber, blended yarn, embroidery thread,

Description

Fabrication and Dyeing Method of Embroidery Thread Using Lyocell / Dog Fiber Blend Yarn {Production and Package Dyeing of Lyocell / Silk Blend Yarn for Embroidery}

1 shows a 20:10 male blend with a lion cell / dog fiber ratio of 90:10.

 Figure 2 is a 20:30 mixed yarn with a ratio of lion cell and silk fiber 70:30

3 is a ratio of 50:50 and 20 male blend yarns of lion cells and silk fibers

4 shows a ratio of lion cells to silk fibers of 90: 10 and 30 male blend yarns.

FIG. 5 shows that the ratio of lion cells and silk fibers is 70:30 and 30 blend yarns.

6 is a 50:50 ratio of lion cells and silk fibers and 30 male blend yarns.

Figure 7 is a dyeing process of the lion cell / silk fiber blend yarn

8 is a dyeability according to the silk fiber mixing rate

9 is dyeability according to the dye concentration

10 is a dyeability according to the acidity of the salt bath at 60 degrees Celsius

11 elongation change

Lyocell, an environmentally friendly fiber-based fiber, is a high-quality material that has recently been spotlighted for its outstanding physical properties. It has gloss and strong tensile strength similar to that of protein-based silk fiber, and has complementary touch and elegant and soft properties. However, the lyocell and the silk fibers are not only difficult to dye, but also have different chemical structures and dyeing characteristics, so that single dyeing is difficult, and thus, processing cost is high when dyeing.

  The development of a single dyeing process that can narrow the difference in pigmentation characteristics of lyocells and silk fibers, while reducing the risk of unit cost, provides superior strength and strength compared to conventionally polished yarns like silk. Produces a soft, glossy, luxurious color.

  It manufactures high-quality Embroidery yarns for Lyocell / Dog fiber with excellent luster and dyeability while being cheaper than conventional yarns processed with gloss like silk fiber.

 To fabricate a lyocell / dog fiber embroidery thread, a lyocell / dog fiber blend yarn is made and the designed single dye method is used.

 The lion cell / dog fiber blend yarn is a lion cell with the product name Tencel A-100, specification 1.2D X 38MM (light color), and silk fiber 1.5mm X 38MM. Tencel A-100 is circular in cross section and resistant to acid, which is excellent in nylon, silk, polyester and processability.

 Lion cell / dog fiber blend yarns were made by spun yarns of 20 and 30 threads with the silk fiber mixing ratio of 10, 30 and 50%, respectively.

 FIG. 1 shows a lion cell / dog fiber ratio of 90:10 and a 20 male blend yarn.

 FIG. 2 shows a lion cell / dog fiber ratio of 70:30 with 20 male blend yarns.

 Figure 3 shows a lion cell / dog fiber ratio of 50:50 and 20 male blend yarns.

 4 shows a lion cell / dog fiber ratio of 90:10 and 30 male blend yarns.

 FIG. 5 shows a lion cell / dog fiber ratio of 70:30 and 30 blend yarns.

 FIG. 6 shows a 50:50 and 30 male blend yarn with a lion cell / dog fiber ratio.

  Each chemical formula for dyeing a lyocell / dog fiber blend is as follows.

  The chemical structure of the lyocell is as follows.

글루코스기(11)와 셀로비오스기(12) 그리고 글루코스기(13)로 형성된다.

The glucose group 11, the cellobiose group 12 and the glucose group 13 are formed.

  Silk fiber chemical structure is as follows.

   Reaction dye (31) and cellulose fiber (32) is dyed by the color (83) is shown in the figure showing the process.

  The dyeing cells of cellulose cells, lyocells, and protein-based silk fibers are different. Lyocell fibers have excellent dyeability with reactive dyes and silk fibers have excellent dyeability with acid dyes. Therefore, in order to dye different mixed yarns in the dyeing reaction cage was invented mixed yarn single dyeing method having the same dyeing conditions as in FIG.

 Bleachonochlorotriazine-based reactive dyes of vinyl sulfone type (Vinyl Sulfone) are used at 60 ° C. for uniform dyeing of two fibers with different dyeing stains by the same dyeing method. Before dyeing, the product was refined at 70 ° C. for 30 minutes using an anion refiner for refining treatment.

 In FIG. 7, 20 minutes after adding dye 72 to water at room temperature and dividing the manganese (sodium sulfate) 72 in 71 minutes, the mixture was maintained for 20 minutes, at 60 ° C. to 80 ° C. at 1.5 ° C./minute 75 per minute. Raise up to 76. After maintaining for 20 minutes, add a small amount of sodium carbonate to maintain alkali (74) at pH 10.8 ~ 11.0, and after 15 minutes, add soda ash (sodium carbonate) in several portions to maintain pH 10.8 ~ 11.0 alkali again, then 45 ~ 60 Stain for minutes. After dyeing for 45 ~ 60 minutes, slowly lower the temperature and finish the dyeing.

 When dyeing, keep in mind that the lyocell fibers have high swelling properties to keep the package density to a minimum. For the production of high quality embroidery threads, the quantity of packages should be lowered to maintain the cross-sectional shape of the lion cell. In addition, in order to increase the degree of dyeing of the silk fiber, the pH of the dyeing liquid should be maintained neutral or weakly acidic, and care should be taken because the use of alkali preparation may cause the swelling of the lyocell to cause uneven dyeing.

 Evaluation of the dyeing results using a single dyeing method according to the present invention compares the dyeability by measuring the reflectance of the red, blue, yellow color. Dye the blended yarn in red, blue, and yellow colors. As a result of measuring the reflectance of blended yarns dyed in red, blue and yellow with varying wavelengths from 400nm to 700nm, red-dyed blended yarns in 540nm wavelength, blue-dyed blended yarns in 630nm light and yellow The maximum absorption was observed in the dyed blended yarn at 460 nm light. Therefore, the dyeability of blended yarn was evaluated by obtaining the K / S value for the above wavelength.

 8 is a dyeability according to the silk fiber mixing rate. It was observed that the dyeability of blended yarns according to the blending of silk fibers decreased as the blending of silk fibers increased. In particular, the color of the blue color system was the biggest decrease. It was observed that the dyeability decreased as the silk fiber content with less dyeability with the reactive dye increased.

 9 is dyeability according to dye concentration. As the dye concentration increased, the K / S value increased, and the increase of K / S value in red was observed the most.

 10 is an experimental result showing the dyeability according to the acidity in the solution containing the dye at 60 degrees Celsius. In order to examine the effect of pH of dye solution on dyeability, dyeability was investigated in acid, alkaline and neutral dye solution. As dye content increased, dyeability decreased, but 10% mixing rate was lower than acid bath. The dyeability was excellent in alkaline baths, especially in neutral baths. These results were the same regardless of the dyeing temperature.

 11 shows the results of observing the change in elongation. The elongation of blended yarn was observed to be less change with increasing silk fiber content after dyeing.

 The table below shows the results of the fastness evaluation.

Color fastness Sample 1 Sample 2  Color fastness Fading 4 ~ 5 4 ~ 5  pollution if 4 ~ 5 4 ~ 5 mother 4 ~ 5 4 ~ 5 Sweat fastness Acid fading 4 ~ 5 4 ~ 5  Acid pollution if 4 ~ 5 4 ~ 5 mother 4 ~ 5 4 ~ 5 Alkaline fading 4 ~ 5 4 ~ 5  Alkali contamination if 4 ~ 5 4 ~ 5 mother 4 ~ 5 4 ~ 5 Color fastness key 4 ~ 5 4 ~ 5 Wet 4 ~ 5 4 Work and visit 20 standard fading time 4 or more 4 or more

As a result of measuring laundry fastness, sweat fastness, friction fastness and day light fastness by selecting two of the 20 yarns of the lyocell / dog fiber blend dyed yarn manufactured according to the present invention, as shown in Table 1, the daylight fastness is not less than grade 4, daylight fastness Except for all 4-4 grades, we obtained very good fastness grades.

    Through the process of the present invention, the dyeing of the lyocell / dog fiber blend yarn can be made uniform without two colors appearing. For the sake of high quality, the increase in the blend ratio of the silk fiber increases the probability of the occurrence of discoloration. The optimum condition of dyeing to suppress the discoloration is obtained.

Claims (1)

 After adding dye to water at room temperature, 20 minutes after adding manganese (sodium sulfate) and maintaining it for 20 minutes, raising it to 60 ~ 80C ℃ at 1.5 ℃ / min per minute, and maintaining it for 20 minutes, in order to maintain alkalinity of pH 10.8 ~ 11.0 After 15 minutes of adding soda ash (sodium carbonate), separate the sodium carbonate with water several times to maintain the pH as alkali (10.8 ~ 11.0), and then dye for 45 ~ 60 minutes, then slowly lower the temperature and finish the dyeing. How to dye blended yarns.

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