• 한국의류산업학회지
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• 제16권2호
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• pp.326-332
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• 2014

To develop cool touch feeling fabrics for summer clothing material, it was manufactured several compositions of woven fabrics, having rayon multi-filament yarn (non-twisted) as warp and various kinds of yarn, such as viscose rayon multi-filament yarn (twisted), tencel$^{(R)}$ spun yarn, PET high absorbance quick dry filament yarn, and PET based rayon-like yarn, as weft. After preparing the fabrics, basic properties of the fabrics were investigated, such as air-permeability, tensile strength, absorption rate, drying rate, etc. Also, surface warm / cool sensations of the woven fabrics were assessed by Qmax Warm / Cool Touch Tester. It was observed that the fabrics composed of viscose rayon multi-filament yarn (warp) and PET high absorbance quick dry filament yarn (weft) showed excellent surface cool touch sensation-the highest Qmax value. This is because the fabric having flat shaped PET high absorbance quick dry filament shows the largest contact area with Qmax measuring plate. And, the fabric also showed superior high absorbance and quick dry property as expected. In addition, we treated phase change material (PCM) on the surface of the fabric composed of viscose rayon multi-filament yarn (warp) and PET high absorbance quick dry filament yarn(weft) to improve the cool touch feeling. However, the surface cool touch feeling was impaired by resin treated with PCM during the finishing process.

• Fibers and Polymers
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• 제6권3호
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• pp.244-249
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• 2005

enVix is a novel regenerated cellulosic fiber, which is prepared from cellulose diacetate fiber using environmentally friendly manufacturing process. Vat dyeing properties of the enVix were investigated and compared with those ofregular viscose rayon. The enVix exhibited better dyeability than viscose rayon. The colour yields of vat dyes on the enVix were found to be dependent on dyeing temperature as well as the amount of levelling agent and salt. Good build-up and good to excellent fastness properties were obtained on the en Vix fabric.

• Fibers and Polymers
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• 제5권3호
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• pp.219-224
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• 2004

The reactive printing properties of regular viscose rayon and a new regenerated cellulosic fiber (en Vix^{\textregistered}$) which was prepared from cellulose acetate fiber was investigated in a comparative manner. From the results, it was found that en Vix exhibited better printing properties than regular viscose rayon. It showed stable final color yields, irrespective of the amount of thickener, hence reproducibility of printing of en Vix is expected to be excellent. In addition, urea requirements were less for the printings on en Vix than for the corresponding printing on viscose rayon. Therefore, en Vix is also expected to reduce the amount of the urea which causes environmental problems in dyehouse effluent.

• 한국의류학회지
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• 제43권6호
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• pp.891-909
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• 2019

This study uses a documentary survey, field survey and textile's characteristics to understand the history of the Punggi Viscose Rayon. Punggi's textile industry grew as people migrated from Pyeongan Province in the 1900s. Little is known regarding early production conditions, but documents show cottage industries in the 1940s made union cloth using silk and rayon. The Punggi weaving industry peaked after the Korean War and declined in the late 1950s. Punggi rayon at that time was mainly used for lingerie or lining, with miliary or polka dot patterns. The industry regained momentum when the power loom was introduced in the 1960s. Manufacturers also started weaving union cloth with synthetic fibers and rayon. In the 1990s, jacquard looms enabled the weaving of elaborately colored and patterned textiles for outer fabric that made Punggi rayon famous. Most Punggi rayon looms have developed in the order of manual handlooms, semiautomatic looms, Jokdapgi, to power looms. Looms equipped with dobbies or jacquard devices also changed from wooden dobby looms to wooden jacquard looms and then to iron jacquard looms. Punggi Rayon currently has its own trademark and tag, but lacks specific regulations on the blending of fibers.

• 한국의류학회지
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• 제41권2호
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• pp.296-305
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• 2017

Gallnuts are known to exert various pharmaceutical properties that include anti-inflammatory, antimicrobial, antioxidant, and detoxifying effects. Gallnut extract is thought to be a particularly safe antimicrobial agent for textile application due to its natural origins. Hence, textiles were dyed with gallnut to develop multi-functional clothing material with no harmful effects. In this study, three kinds of cool touch woven fabrics, each comprised of 100% viscose rayon filament, viscose rayon filament/high absorption & quick dry (polyester) filament, and viscose rayon $filament/tencel^{(R)}$ spun yarn, were prepared and used as substrates for gallnut dyeing to especially develop functional cool touch textiles for summer clothing material. On the other hand, gallnut dyeing was conducted with mordanting with iron, lime or alum, which induced different colors on the dyed textiles. Dyed textiles were then investigated by SEM, FTIR, antibacterial test, and antioxidant test. Subsequently, gallnut dyed textiles indicated excellent antibacterial ability and deodorization activity regardless of mordant species. However, only gallnut dyed textiles mordanted with iron and alum showed significant antioxidant ability. In addition, the dyeing processes impair the cool touch feeling of the textiles by changing the micro structure of the textile surface.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2008년도 제39차 학술발표회
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• pp.137-138
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• 2008

Viscose rayon is not a thermoplastic yarns, but it was deformed with the heat in this study. Therefore, bulky rayon yarn was developed by modifying the shrinkage for rayon and reviling the micro crimp of the rayon, and finally, span knit was developed with bulky rayon yarns.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 1998년도 제50차 추계 학술대회 연제집
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• pp.64-65
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• 1998

• 자연과학논문집
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• 제10권1호
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• pp.103-109
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• 1998

본 연구는 오존의 강한 산화력을 이용하여 기상의 처리방법에 따른 비스코스 레이온의 탈색효과를 연구하였다. 오존이 발생할 때는 기체상태로 고농도이지만, 수용액 상태로 물에 녹이는 과정에서 기화요인에 의하여 오존의 손실이 많았다. 따라서 기존의 오존처리방법인 수용액상태의 처리방법이 아니라 기상의 오존을 직접 직물에 처리하므로 고농도의 오존을 단시간동안 처리하여 직물에 존재하는 색소를 산화시켜 탈색하는 방법을 사용하였다. 기상의 오존은 직접 유기색소와 반응하지 않기 때문에 물을 매개체로 하여 pick up ratio를 60%, 50%, 40%, 30%, 20%로 변화시키면서 비스코스 레이온의 탈색에 대하여 연구하였다. Pick up ratio가 40%일 때가 유기색소를 분해하는데 필요한 최적의 수산기가 발생하므로 처리포의 탈색효과가 가장 좋았다. 그러나 처리기간이 길수록 너무 과다하게 오존에 의해 산화되므로 강도와 신도의 저하를 초래하였다. 따라서 최적의 기상오존 처리시간은 60분정도에서 처리하는 것이 강도와 신도의 저하를 가장 적게 할 수 있고 백도도 향상시킬 수 있는 것으로 사료된다.

• 한국의류학회지
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• 제12권3호
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• pp.383-390
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• 1988

To investigate the soil-redeposition and color change on dry-cleaning, the white and, dyed, fabrics of cotton, silk, polyester and viscose rayon were put into ordinary commercial dry-cleaning machine with soiled cloths. The solvents used were hydrocarben, perchloroethylene and fluorocarbon. From the result, we obtained the following conclusions by examining soil-redeposition, color difference of fabrics and tenacity of cotton fabric. 1. In case of white fabrics, as a whole, perchloroethylene shows the lowest soil redeposition. When distillation process is adopted, the rate of soil redeposition is lowered. with hydrocarbon sdvent. The order of soil redeposition rate of fibers are following; cotton> viscose rayon> silk> polyester. 2. In case of dyed fabrics, the color difference between soil redeposited fabrics and originals ($\delta\;E_1$) is similar with white fabrics in pattern, and the order is cotton, viscose rayon, silk and polyester. The color difference between fabrics, treated by pure solvents and originals ($\delta\;E_2$ ) is also validated as a little. It seems to be due to the bleeding of dyestuffs from fabrics. 3. There is a little change of tenacity of cotton fabrics by dry-cleaning with perchloroethylene solvent. It is supposed that the damage is more influenced the repetitive mechanical action during dry-cleaning than by acidity of the solvent having the acid value of 0,14.

• Ocean and Polar Research
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• 제45권1호
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• pp.1-9
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• 2023

Marine microalgae have different collection methods depending on their habitat. In the case of adhesive microalgae, it is difficult to separate organisms from the substrate surface, and contamination is likely to occur during the sampling process. In this study, we analyzed the collection efficiency of adhesive microalgae using three artificial fiber materials (nylon, blend fabric, and viscose rayon). Each fiber showed different fiber diameter and pore characteristics (nylon 26.09 ㎛, blend fabric 56.6 ㎛, viscose rayon 101.3 ㎛). In addition, attached organisms were collected on the surface of artificial substrates at Bukseong Port in Incheon using each tested fiber material. After that, we investigated the population and species composition. The highest number of cells was found in nylon, which was 8 times higher than in the least collected viscose rayon material. In addition, we identified 24 microalgal species from the substrate, demonstrating that the species composition differed from that of surface water. The number of collected microalgae species varied depending on the fiber materials, with nylon containing all the adhesive microalgae. In contrast, only a few microalgae were observed in other fibers. These results suggest that, of the tested fibers, nylon material may be suitable for collecting adhesive microalgae. As a result, this study may be useful for future research on adhesive microalgae.