• Nuclear Engineering and Technology
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• v.12 no.1
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• pp.1-8
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• 1980

The grafting studies were concentrated on working out the methodology for radiation of flame retardants to polyester/cotton (65/35) blend fabric. The Fyrol 76 was used as a flame retardant in develping methodology for localizing flame retardants on the surface of the blend fabric. By judicious control of the swelling conditions, time_of contact with the monomer, and dose rate, locating the graft in the fiber became possible. The yield of the graft polymerization was depended upon the total dose and the preswelling conditions. Oxygen Index was used to evaluate the effect of the location of Fyrol 76 and other flame retardants within the surface upon the flame retardance efficiencies. To get a better flame retardance efficiency by :the localized grafting of Fyrol 76 to polyester/cotton blend fabric, a technique of one step processing at room temperature was developed substituting the ordinary two-step processing at high temperature.

• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.7
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• pp.1119-1127
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• 2007

Nonwovens have been widely used in various regions from the households to the industrial, agricultural and medical goods. Synthetic fibers have been used for source of nonwovens commonly because of their useful and economic properties. They are not only main factor causing environmental problems but also spend huge cost to renew the environmental disruption by them. Nonwovens must have both cost-competitiveness and environment-friendly property to be the desirable sources in 21th centuries. For meet these needs, it is suitable for the times that economical and environmentally-safe kenaf fibers would be used as raw materials of nonwovens. Kenaf and polyester fibers were blended in 4 types of ratio : 0/100, 20/80, 40/60, 60/40 were needle-punched. The nonwovens properties such as color values, surface appearance, strength, elongations, stiffness, moisture regain, water and oil absorbency, and electrification were tested. As the results, tensile and tear strengths, water and oil absorbency were maximum at 20/80 kenaf/polyester blend nonwoven, because of effecting by nonwoven structure and fiber properties. The moisture regain were increased according to kenaf were blended and the eletrification reduced in proportion to the kenaf fibers by chemical property of fiber composed nonwovens.

• Fashion & Textile Research Journal
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• v.22 no.4
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• pp.515-522
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• 2020

This study examined the effect of the blend ratio of wool and polyester fibers, yarn and fabric structural parameters to the appearance property and the formability of worsted fabrics. The mechanical properties of twenty types of manufactured worsted and PET/wool blend fabrics were measured using KES-FB and FAST systems. Garment formability increases with the thickness and cover factor as well as increases with wool content. The correlation between KES-FB and FAST system showed a relatively high correlation with an extensibility of 0.98, bending and shear rigidity 0.71; both were higher than polyester synthetic fiber. The correlation coefficient of garment formability between KES-FB and FAST systems was 0.93 and the correlation coefficient between formability and fabric extensibility was 0.8. These results were higher than those of bending and shear rigidity. This revealed that garment formability was influenced by wool content, cover factor and fabric thickness; however, wool content and fabric thickness were the most important factors for the seam pucker. The garment formability of the worsted fabrics can be predicted by fabric mechanical properties measured from KES-FB and FAST systems.

• Journal of Sericultural and Entomological Science
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• no.11
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• pp.87-94
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• 1970

This study was conducted in order to find out the tendency of sericultural woman's clothes. This data was based on random samples of 183 sericultural women throughout the country, and was derived from the investigation of c1othes (western and Korean-style) which had been made during the years, 1967∼1969. The results obtained are summarized as follows: 1. Western-style clothes were about twice as popular as Korean-style, and more evident among the young women. It was also shown that the ratioes mentioned above were gradually decreased year by year. 2. Most popular among the western-style clothes were blouses, one-piece dresses and skirts. Jogori(coat) and Cheema(long skirt) were favorites among the Korean-styled clothes. One-piece dresses showed increasing tendency of use year by year. 3. Costume-made clothes were much more in number than the home-made and the ready-made types. The home-made and the ready-made clothes increased as the ages increased. 4. Western-styled clothes were popular in summer seasons while Korean-styled clothes were popular in the winter time. Among the western-styled clothes one-pieces dresses and two-piece suits were most popular during the spring through autumn. In Korean clothes the Cheema was popular all year round. 5. Western-style clothes were mostly made of polyester and their blends. Silk was the least used fabric. On the contrary, most of Korean-style clothes were made of silk and their blends. The synthetic fibers showed increasing use year by year. 6. Favorite colors were in order; white, blue, brown, and black in western-style clothes; white, blue, green, and gray were in Korean style clothes. Young women teaded to have a wider preference of colors than the older women.

• Fashion & Textile Research Journal
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• v.20 no.5
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• pp.600-607
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• 2018

Polypropylene fibers, while having many advantages such as light weight, sweat fast drying, water-repellent, drainage, thermal insulation, anti-static property has a drawback in dyeing. In recent years, the development of dyeable polypropylene fibers has expanded its value in the textile market. The purpose of this study is to fabricate composite spun yarns using polypropylene, acrylic, rayon and wool and to analyze tensile properties, uniformity characteristics, bending properties, hairiness, and surface shape according to the degree of fineness and blended ratio. The specimens consisted of 100% polypropylene spun yarn pp30, pp40 and ppa(pp/acrylic), ppr(pp/rayon), ppw(pp/wool), 5 altogether sed in this study. The results of the study are as follows. The breaking strength of polypropylene spun yarn blended with rayon and acrylic was higher than that of 100% polypropylene spun yarn. The polypropylene spun yarn is higher the fineness been shown to decrease the breaking strength and elongation. The bending properties of polypropylene spun yarns were in the order of ppa>ppr>pp40>pp30>ppw. The unevenness of ppw, ppr, and ppa was higher than pp40 and pp30. With the exception of ppw with crimp properties, pp30 and pp40 were found to have a hairiness index greater than ppr, ppa. In the microscopic photographs of polypropylene spun yarn, pp30, which had the highest hairiness index, was found to have a thick yarn and a large number of hairs, and ppw had hairs of 3 mm or more protruding elongated outwardly.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2012.03a
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• pp.41-41
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• 2012

고급 스포츠웨어와 이너웨어 등에 많이 사용되고 있는 나일론/폴리우레탄 혼방제품은 염색에 있어서 Grin-through 현상, 인공피혁의 염료 이염 현상 등 많은 문제들이 존재한다. 본 연구의 나일론과 폴리우레탄 복합소재에서 나타나는 염색거동을 고찰하고 분석하여, 폴리우레탄 복합소재의 염색성을 개선하기 위하여 실시하였다. 폴리우레탄 복합소재는 해성분이 용출되지 않은 나일론 초극세사 소재에 폴리우레탄 수지를 함침하여 인공피혁과 같은 느낌을 주도록 직접 제조하였다. 제조된 폴리우레탄 함침 나일론 초극세사 소재의 해성분을 용출하였고, Red 색상의 밀링형 산성 염료, 함금속 염료와 반응성 염료에 따라 달라지는 염색특성 및 세탁 견뢰도 등을 고찰하였다. 본 연구를 통하여 다음과 같은 실험결과를 얻을 수 있었다. 나일론 초극세사와 폴리우레탄 수지를 준비하여 습식공정을 통해 인공피혁을 제조한 함침 소재를 알칼리 감량하였고, 감량률은 15~17% 정도로서 대부분의 해성분이 용출됨을 확인하였다. PPG와 PTMG로 구성된 폴리올을 기반으로 한 폴리우레탄 함침 피혁과 PTMG를 단독으로 사용한 함침 피혁의 염색성을 비교한 결과, PPG+PTMG 타입이 더 우수한 염색성을 나타내었다. 특히 밀링 타입과 함금속 타입 염료의 경우는 거의 2배 이상의 흡진율과 겉보기 색농도를 나타내었다. 한편, 반응성 염료의 경우는 두 종류의 폴리우레탄 필름에 거의 염착되지 않았기 때문에 앞으로의 염색실험에서 제외하였다. 견뢰도 측면에서는 각각의 피염물의 등급은 거의 유사하게 나타남을 확인하였다. 이상과 같은 결과로부터, 인공피혁 제조시 PPG+PTMG 타입의 폴리우레탄 수지를 사용하여 함침시 더 높은 색강도와 염착률을 얻을 수 있음을 알았다. 사용하는 염료의 종류를 좀 더 다양하게 하여 실험을 실시하고 폴리우레탄의 물성 및 분석 등의 추가적인 연구가 진행된다면, 인공피혁의 염색시에 발생하는 여러 가지 문제점들을 해결할 수 있을 것이다.

• Fashion & Textile Research Journal
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• v.17 no.6
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• pp.1020-1029
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• 2015

This paper investigated the wearing performance of knitted fabrics made of air vortex yarns using PTT/tencel/cotton fibres in comparison with ring and compact yarns for emotional garment. Wicking property of knitted fabric made of MVS yarns was worse than those by ring and compact yarns, however, drying property of knitted fabric made of MVS yarns was better than those by ring and compact yarns, which was explained as more water vapor transport due to larger openness between fibres in the MVS yarns than those in the ring and compact yarns. Thermal conductivity of knitted fabric made of MVS was lower than those of ring and compact yarns and maximum heat flow(Q_max) at the transient state of MVS knitted fabric was lower than those of ring and compact yarns, which may be attributed to MVS yarn structure that has parallel fibres in the core part of the yarn and fasciated fibre bundles on the sheath part with roughness on the yarn surface. However, pilling of MVS knitted fabric was better than those by ring and compact yarns, which was caused by less and shorter hairy fibres protruded from MVS yarn surface than those of ring and compact yarns. It was observed that tactile hand of MVS yarn knitted fabrics was stiffer than those of ring and compact yarns knitted fabrics. It was explained by low extensibility and compressibility and high bending and shear rigidities of the MVS yarn knitted fabrics, which resulted in bad wearing performance of MVS knitted fabric.

• Science of Emotion and Sensibility
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• v.19 no.4
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• pp.3-12
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• 2016

The aim of this study is to find the optimal combination dyeing condition for the enhancement of dye uptake and union dyeing of the composite material fabric made of triacetate and quick drying PET blended yarn. For the experiment, fabrics were one-bath combination dyed using the mixed dye of E-type disperse dye(C.I Disperse red 50) and S-type disperse dye(C.I. Disperse red 92) to measure dyed fabric's dye exhaustion, dye uptake, color and color difference according to the diverse conditions including dying temperature, time and mixed ratio of the dye. Dye equilibrium of combination dyeing occurred in $100^{\circ}C$, but by comparing dyed fabrics' K/S value and surface color, it was found that $120^{\circ}C$ was where the manifestation of color of triacetate and quick drying PET was identical. Mixed dye exhaustion and dye uptake merely changed as dyeing time increased, but color became more uniform. Therefore, it can be concluded that by using combination dyeing method, and by using the mixed dye which the mixing ratio of S-type dye and E-type dye is appropriately controlled, dye uptake can be improved compared to using single dyeing regardless of the color of E-type dye.