• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2003.04a
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• pp.43-46
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• 2003

폴리에스터 섬유는 강도, 탄성 및 구김회복성 등의 우수한 기계적 성질로 말미암아 의류용 및 산업용소재로 광범위하게 사용되고 있지만 구조적으로 결정성이 크고 치밀한 분자배열 등의 섬유 특성으로 염료와의 결합성에 제한이 있으므로 염색은 대부분 소수성 염료인 분산염료에 의존하고 있다. 그러나 세탁에 의한 색상강도 저하 및 탈착 염료에서 기인되는 오염 등의 문제로 폴리에스터 섬유에도 우수한 견뢰도 특성이 요구되어 인디고 배트염료를 이용하여 염착특성을 조사해 보고자 한다. (중략)

• Textile Coloration and Finishing
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• v.9 no.3
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• pp.50-55
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• 1997

Ester섬유는 대표적인 소수성 섬유인데, 소수성 섬유의 염색중에서 black은 가장 가공량이 많은 색이라고 널리 알려져 있지만, 그 중에서도 ester섬유 또는 ester섬유와 triacetate섬유의 혼방품 등을 소재로 한 정장복의 짙은 검정색은 formal black 이라고 불리워지고, 그외의 검정색과 구별되고 있으며, 그 가공량도 대단히 많아지는 추세이다. 이 글에서는, 연색성과 재현성이란 차원에서 특징있는 일본화약주식회사의 신제품 Kayalon Polyester Jet Black V Paste의 소개를 겸해서, formal black의 염색가공과 한국 실정에 맞는 실예에 관해서 기술해 보고자 한다.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2008.10a
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• pp.81-82
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• 2008

In order to design the dyeing process of polyester fibers at low liquor ratio the reproducbility and levelness of dyeings were investigated at various dyeing scale. The levelness was evaluated statistically from color strength obtained at different sections of each piece of dyed fabrics. As the dyeing scale increased, levelling properties was improved.

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.283-286
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• 2001

For the common drier and heaters, the heat gradually transfers from exterior to interior in the materials, as it generally adopts radiant or/and convection heat. However, by using microwave, both the interior and exterior of fiber materials can be evenly heated simultaneously. (omitted)

• Journal of the Korean Home Economics Association
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• v.11 no.3
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• pp.285-298
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• 1973

The colorfastness of dying persipiration and laundry on summer clothing must be considered, because it has special relation to the human body. The colors of fibers as cotton, p/c, acryl, polyester and nylon which have been widely used for blouse and T-Shirt of Knitted wear are R-P, Y-G, BI-B and print. Studies were carried out with persipirometer, for the natural fiber of cotton the chemical one of nylon, with additional stuff involved, which polluted. The experiment was conducted to colorfastness with acid solution and alkaline solution to see the alteration of color and staining of man-made persiperation. The results obtained from this experiment can be summerized as follows. 1. The order of color alteration isnylon < p/c < coton < polyester < acryl, and the nylon shows the lowest colorfastness, which is 3 class, and the acrly shows the highest colorfateness, which is 5 class. The staining of multifiber test of cotton fabric is nylon < p/c < polyester < cotton < acryl. The staining of multifiber of nylon fabric is nylon polyester < p/c < cotton < acryl. 2. In acid solution and alkaline solution, the alteration of color and staining makes almost no difference, but concerning staining of cotton, the acid solution is lower than the case of alteration solution only. 3. In the pollution on cotton and nylon, the latter is more easily polluted than the former regardless of fabrics. Especially in case of polluted nylon, ti shows the lowest color fastness (2 class), which causes a problem of the dying process and dye stuffs. 4. No difference of color alteration shows among them, but R-P and print show low color fastness (2 class), especially printed nylon shows the lowest value (1 class).

• Journal of the Korean Society of Clothing and Textiles
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• v.20 no.1
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• pp.228-238
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• 1996

The purpose of this study was to evaluate the effect of chacteristics of knit fabrics on the microclimate of the skin simulating system. To determine the effect of characteristics of knit fabrics, vapor state of sweat pulse was simulated in the closed system. Different contents of fibers such as cotton, wool and polyester with different yarn size and knit types were chosen for specimens. The changes of humidity and temperature of air layer in the simulated systems were measured. Buffering indices, $K_d$ and $\beta_r$, were determined by considering $\alpha_p, \DeltaP_{max}, t_{max}, and tan\beta$. Physical properties of knit fabrics such as thickness, porosity, air resistance and moisture vapor transport were measured. Results showed that vapor pressure of wool was lower than cotton or polyester This was attributed to the hydrophilicity of wool which absorbed moisture rather quickly and retained in the knit fabric. The time to decrease vapor pressure was faster for polyester than cotton or wool. As a result, $K_d$ was in the order of wool> polye, item> cotton. $\beta_r$ of wool was rower than cotton or polyester due to its lowers porosity and slower desorption rate. For the yarn size, $K_d$ was in the order of 80's> 60's> 30's; thinner and lighter yarn showed better water vapor transport property. For knit type, buffering capacity of single jersey was better than interlock knit fabric. Statistical analysis showed that the air permeability was the most influential factor far the water vapor transport properties.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2009.03a
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• pp.229-230
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• 2009

Recently the demand for wool has been gradually decreasing due to global warming, oil depletion, Coolbiz campaign to reduce CO2 emission, and preference for business casual wear, while the price for wool materials has been constantly increasing. Wool, characterized by the natural touch and unique sensibility, is considered as one of the best natural materials, including silk. For wool, currently Korea almost depends on import from foreign countries. Therefore, 100% wool products cannot be competitive in terms of pricing and current trend. To secure sustaining competitiveness in the fiber market, it is required not only to develop new wool materials that enable expression of new sensibility that cannot be expressed by conventional wool fibers, but also to pursue differentiation of fundamental sensibility and functionality by highlighting advantages for wool as a natural fiber but by reducing its disadvantages through dominant conjugation with synthetic fibers. This study attempted to improve the technology of differentiating wool-like synthetic fibers such as polyester and combine technology with sensibility through mixing with wool materials. It also aimed to develop wool-like stretch materials and pre-treating and yarn dyeing technologies that enable fabrics to main natural wool-like touch and stretch, and ultimately to develop wool mixed fabrics that have new sensibility and functionality.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.2
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• pp.177-190
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• 2016

On-line consumer reviews are good references for consumers to evaluate and buy apparel products. The objective of this study is to facilitate communication about performance textiles between consumers and merchandisers who buy and sell apparel products on online. The survey was based on standardizing words used in consumer reviews written after purchase of summer knit t-shirts at internet shopping mall and evaluating the performance textiles including cellulose fibers. We collected reviews of five sorts of the clothing products including cotton/modal, tencel/polyurethane, polyester/rayon, linen, cotton and selected 1000 reviews related to textiles. For classifying each word used in the reviews by the performance textiles, they were quantified applying same standards. The results were as follow: First, the standard for consumer to consider importantly was tactile sensation, appearance, pilling, thickness, dimensional stability in washing. Second, the important category of performance textiles was healthy-comfort and psychological-comfort. Third, there were difference performance textiles for consumer to recognize, e.g. cotton/modal was important to air-permeability, tencel/polyurethane was noticed about tactile sensation, polyester/rayon was perceived about pilling unlike other things, linen had a problem of clothing care-convenience, then cotton was familiar fiber to important for appearance. The last, consumers usually focused on writing the most positive or negative online reviews. Although not familiar with professional terminologies, consumers are sensitive to physical properties of textiles. Therefore, standardizing and evaluating performance textiles are expected to improve satisfaction as providing objective information to consumers considering in buying apparel products at online shopping mall and increase in revenue to manufacturer.

• Composites Research
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• v.34 no.3
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• pp.148-154
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• 2021

Carbon/epoxy composite bipolar plate (BP) is a BP that is likely to replace existing graphite bipolar plate of vanadium redox flow cell (VRFB) due to its high mechanical properties and productivity. Multi-functional carbon/epoxy composite BP requires graphite coating or additional surface treatment to reduce interfacial contact resistance (ICR). However, the expanded graphite coating has the disadvantage of having low durability under VRFB operating conditions, and the surface treatments incur additional costs. In this work, an excessive resin absorption method is developed, which uniformly removes the resin rich area on the surface of the BP to expose carbon fibers by applying polyester fabric. This method not only reduces ICR by exposing carbon fibers to BP surfaces, but also forms a unique ditch pattern that can effectively hold carbon felt electrodes in place. The acidic environmental durability, mechanical properties, and gas permeability of the developed carbon/epoxy composite BP are experimentally verified.

• International Journal of Human Ecology
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• v.9 no.1
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• pp.17-27
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• 2008

Black garments can lose color, image, and be the main cause of color staining when washed with other laundry that can cause color contamination from interaction with other garments. To know the fiber-based dye fastness for colored garments, 4-5 pieces of various fibers of different fabrics were selected; cotton, linen, wool, silk, rayon, acetate, polyester, and nylon. To determine the colorfastness to washing and crocking, the black fabrics were washed with alkali and neutral detergents under the Laund-O-Meter method under the Crockmeter method. In an alkali detergent laundering conditions, most colored samples did not undergo color or light fastness. However, most of the stained fabrics slightly changed in K/S values while other samples underwent severe changes. With neutral detergent laundering, sample fabrics underwent less shrinking, and had less naps. The stained fabrics also underwent less change in K/S values. With time-repeatedly-washing the original sample went through colorfastness to lose color. In crocking fastness, most samples produced good to excellent results under dry conditions but produced relatively low crocking fastness under wet conditions. Natural fibers especially showed lower crocking fastness than artificial fibers. In conclusion, garments of the same color should be laundered together. The black garments that are washed using neutral detergents can decrease the amount of damage from color change. While it is the responsibility of garment producers to provide appropriate quality indications they should also provide adequate instructions for consumers to understand and appropriately cope with the quality indications in order to contribute to establishing a correct laundering method.