• Title/Summary/Keyword: Moisture regain

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Moisture-Related Properties of PET Fabrics treated with Quaternary Ammonium Compound/Alkaline Solution (사급(四級) 암모늄 화합물(化合物)과 알칼리 혼합액(混合液)으로 처리(處理)된 PET직물(織物)의 수분특성(水分特性) 연구(硏究))

  • Kim, Do-Hee;Jeon, Dong-Won;Kim, Jong-Jun
    • Journal of Fashion Business
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    • v.7 no.2
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    • pp.69-81
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    • 2003
  • Among the various properties of textile fabrics, the moisture-related properties are important for the textile processes or the apparel comfort characteristics. Alkaline hydrolysis results in pitting on the surface of fibers and increases the amount of hydroxyl and carboxyl end groups of the PET molecules on the fiber surface. The purpose of this study is to investigate the moisture-related properties of PET fabrics treated with quaternary ammonium compound/alkaline solution. The wetting and wicking properties of the PET fabrics were measured using the following experiments: contact angle, surface free energy, work of adhesion, vertical wicking height, moisture regain, and frictional static voltage. It was concluded that by the alkaline hydrolysis process, surface hydrophilicity and reactivity were considerably improved especially at lower levels of weight loss% and that the pitting of the fiber surface resulted in at higher levels of weight loss% was disadvantageous in moisture-related properties of PET.

Flame Retardant Finishing for Nylon Fabric with Phosphate Compound (인 화합물에 의한 나일론 직물의 방염가공)

  • 김수창
    • Textile Coloration and Finishing
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    • v.10 no.4
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    • pp.30-36
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    • 1998
  • The need for the effective flame retardant finishing for synthetic fiber Is required. This paper is focussed on the analysis of physical properties of nylon 6 fabric treated with tris(2-chloroethyl) phosphate(TCEP) in comparision with the untreated fabric. In order to evaluate the flame retardance effect, limiting oxygen index and burn rate were determined. Above 20% add-on of TCEP on nylon 6 fabric, reasonable flame retardancy was observed. Thermal stability of the treated nylon 6 fabric was evaluated by TGA. It seems that TCEP acts via a condensed phase mechanism. Tenacity and moisture regain of the treated fabrics were not changed and washfastness of those was excellent.

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Ozone-Gas Treatment of Acetate fibers (아세테이트 섬유의 오존가스 처리)

  • Lee, Myeong-Seon;Lee, Mun-Cheol;Wakida, Tomiji;Park, Won-Ho
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2008.10a
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    • pp.19-20
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    • 2008
  • Acetate fibers, such as diacetate and triacetate, were treated with ozone gas under atmospheric pressure and at a pressure of 40g/m3 and 100g/m3. The effect of the ozone-gas treatment was investigated on the basis of ESCA, FT-IR, x-ray diffraction, moisture regain, water absorption, and dyeing properties. The ozone-gas treatment caused an increase in the oxygen content of each fiber.

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Comfort Properties of Silk#x00B7;Rayon-Cellulose Fiber Union Fabrics (견·인견과 셀룰로오스섬유 교직물의 쾌적성능 평가)

  • Bae, Young Hee;Yun, Chang Sang;Jeong, Woon Seon
    • The Korean Journal of Community Living Science
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    • v.27 no.4
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    • pp.795-801
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    • 2016
  • This study was conducted to suggest the best union fabric to combine with cellulose fiber for summer and in-between seasons. Four types of union fabric, viz. silk/flax, silk/cotton, rayon/flax and rayon/cotton, were used as sample fabrics after weaving them in a local textile factory. The air permeability, moisture regain, water absorption, water vapor permeability and thermal insulation of the samples were tested. The results are as follows. The rayon/flax union fabric is the most suitable for summer clothes due to its having the best comfort property of air and water vapor permeability, and moisture and water absorption. For in-between seasons, it is recommended to use the silk/cotton union fabric because of its good thermal insulation properties.

The Properties of Plant Fiber and Polyester Blended Nonwoven Fabrics (식물성 섬유와 폴리에스테르 섬유의 혼합 부직포 제조 및 특성 -어저귀, 칡섬유를 중심으로-)

  • Lee, Hye-Ja;Kim, Nam-Eun;Yoo, Hye-Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.11
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    • pp.1696-1706
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    • 2009
  • Nonwoven fabrics have been widely used in various fields that include household, industrial, agricultural, medical goods, especially in the automobile industry. In this study, eco-friendly fiber materials were developed and investigated as a substitute material for polyester fibers in nonwovens. To make plant fiber bundles, stems of Indian mallow (IM), and Kuzu vine (KV) were retted; in addition, the non-cellulose component was partially removed. Plant fiber bundles and polyester fibers (P) were blended and needle punched to produce nonwovens. Five kinds of nonwovens were manufactured: P100 (Polyester 100%), IM10 (IM 10% and Polyester 90%), IM20 (IM 20% and Polyester 80%), KV10 (KV 10% and Polyester 90%), and KV20 (KV 20% and Polyester 80%). The color values, surface appearance, tensile strength, elongation, tear strength, abrasion strength, flexstiffness, moisture regain, water or oil absorbency, and static electricity of manufactured nonwovens are investigated. As the blended ratios of IM or KV increased, the brightness of nonwovens decreased compared to that of polyester 100%. Tensile strength, tear strength, abrasion strength, and flexstiffness of IM10 as well as KV10 were higher than those of P100, IM20, and KV20, resulting from the influence of the structure and properties of nonwoven fibers. Moisture regain and water or oil absorbency increased, while static electricity decreased in proportion to the amount of plant fibers. IM or KV and polyester blended nonwovens showed improved properties over P100 that could be substituted for P100 as a novel material for textiles.

A Study on Softening Finish of Cotton Fabric using Cellulase (셀루라아제에 의한 면직물의 유연가공에 관한 연구)

  • Kang Ji-Yun;Ryu Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.14 no.4 s.36
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    • pp.262-273
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    • 1990
  • The purpose of this study is to investigate the softening effect of cellulase-treated cotton fabric and the damage on the fabric which is accompanied by the treatemnt. Cotton fabric is treated with cellulase under various concentrations and time, and the weight loss, hand values (by KES), surface characteristics, moisture regain, tensile strength, copper number and intrinsic viscosity of the treated samples and untreated samples have been compared. The results are as follows: 1. The weight loss of cotton fabric increased as the concentration of cellulase and the treating time increased. 2. The enzyme treatment had little effect on the stiffness of the treated samples but anti- drape stiffness decreased for the treated samples. Fullness and softness of the treated samples increased and crispness decreased with the lowest level reaching after two hours of the treatment for all concentrations. Scrooping feeling of the treated samples increased and flexibility with soft feeling increased as the treating time and the concentration of cellulase increased. 3. Moisture regain of the samples decreased as the treating time and the concentration of the enzyme increased and the treated fabric showed cracks on the fiber surface, and much surface fibers on the fabric have been removed after the treatment. 4. Tensile strength of the samples decreased as the treating time and as the concentration of cellulase increased, and the copper number increased while the intrinsic viscosity decreased as the treating time increased, but cellulase concentration had a little effect.

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Effects of Thermophysiological Responses by Trainning Wear Made from Cotton and Hygroscopically Treated Polyester (면과 친수 가공 폴리에스테르 소재로 된 트레이닝복의 인체 생리 효과)

  • Chung Hee-Ja;Chang Jee-Hae
    • Journal of the Korean Home Economics Association
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    • v.37 no.12 s.142
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    • pp.193-203
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    • 1999
  • This study was executed to show influence of material and property of sportswear to physiological responses of body and comfort sensation and to supply basic research data about comfortable sportswear Trainning wear was manufactured with cotton(C) and hygroscopically treated polyester material (FP), and its properties of material were measured. Then rectal temperature, skin temperature, heart rate, weight loss, clothing microclimate and subjective sensation was estimated with study of wearing with these sportswear and examined the influence that it got to physiological responses of body and sensation. Health adult men were selected for subjects and executed at climatic chamber of temperature, $20\pm2^{\circ}C and humidity, $60\pm5%$ R.H. Conclusively sportswear of hygroscopically treated polyester is a favorable functional material. So far factor that affect to physiological comfort sensation has been explained mostly by moisture regain but in our experiment, it turned out that air permeability, water absorption velocity and dynamic oater absorption etc. were affecting factors. So according to this result, air permeability and moisture permeability should be considered with transmittance of temperature moisture for development of comfort material.

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The Effect of Thermal Storage/Release and Moisture Transport Properties of Polyethylene Glycol-Treated Acrylic Athletic Socks on the Wear Performance (Polyethylene Glycol 처리한 아크릴 운동용 양말의 축열 . 방열성과 수분전달 특성이 착용 성능에 미치는 영향)

  • 조길수;이은주
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.1
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    • pp.36-50
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    • 1995
  • The purpose of this study was 1) to estimate the improvement of thermal storage/release and moisture transport properties of PEG-treated acrylic athletic socks and suggest the optimum add-on for PEG treatment, 2) to investigate wear performance of untreated cocks and two kinds of socks treated with PEG of minimum and optimum add-on respectively, and 3) to consider the effect of thermal storage/release and moisture transport properties of PEG- treated socks on the wear performance and the subjective comfort zone. Thermal activities of specimens treated by PDC were evaluated on a DSC by measuring the heat of fusion on heating and the heat of crystallization on cooling. Moisture regain, absorption speed, wickability, water retenti on value, and water-vapor permeability were measured. In the wear trials that the subjects performed a subsequent exercise protocol wearing three differently treated socks in a conditioned environment ($14\pm2^{\circ}C$, 65$\pm$2% R.H.), microclimate temperature and humidity, and subjective wear sensations including thermal sensation, wettedness, softness, fit, and overall comfort were obtained. PEC-treated specimens with more than 20% add-on showed thermal storage on heating and thermal release on cooling by a DSC and the heat contents of treated ones were generally proportional to the add-ons. Moisture transport properties were highly improved after PEG treatment and increased rapidly with increasing add-on. The tendencies were, however, relaxed above 50% add-on and the treated knits were much stiffer above that add-on. In the wear trials of untreated, PEG add-on 20%, and 50% acrylic socks, the changes of microclimate temperature of 50% socks were significantly less than that of 20% socks. PEG add-on 50% socks showed significantly less changes of microclimate humidity than other two kinds of socks. Three kinds of socks showed significant differences in overall comfort and add-on 50% socks were accepted more comfortable than other two kinds of socks. Comfort zone of foot was extended after PEG treatment on socks and it implied that the subjects wearing PEG- treated socks felt comfortable in wider ranges of microclimate temperature and humidity.

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A Study on the Sorption and Physical Properties of the BTCA Finished Cotton Fabrics (BTCA로 방추가공한 면직물의 수착 성질 및 물리적 성질의 연구)

  • 최연주;유효선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.22 no.4
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    • pp.535-542
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    • 1998
  • Cotton fabrics were treated with BTCA, which is used to improve the wrinkle recovery property of cotton fabrics. BTCA, with varying its concentrations, was treated on cotton fabrics by pad dry-cure technique. BTCA contents in treated cotton fabrics were determined by the weight gain and the FT-lR spectrometer. The effects on the sorption and physical properties of BTCA treated fabrics were investigated. IR spectra showed that ester-crosslinks were produced in BTCA treated cotton fabrics. And as increasing the concentration of BTCA, ester-crosslinks are increased in amorphous regions of fabrics. Moisture regain and water imbibition of treated fabrics were reduced. But, they were increased over a certain concentration. Dye sorptions also were reduced, but they were similar over 6% BTCA. When BTCA was treated on cotton fabrics, DP rating and wrinkle recovery angle were improved. On the other hand, strength retentions of treated fabrics were lower than untreated fabrics. Stiffness was increased.

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A Study on Decomposition of PET Microfiber Fabrics by Sodium Propyleneglycolate/propyleneglycol (Sodium propyleneglycolate/propyleneglycol 용액에 의한 Pollrester극세사직물의 분해에 관한 연구)

  • 배정숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.22 no.4
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    • pp.431-441
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    • 1998
  • Polyester microfiber fabrics were decomposed at 100, 110, 120 and 140 t of temperature and 0.5, 1.0 and 1.5% of sodium propyleneglycolate/propyleneglycol solution(SPG-PG). Characteristic decomposition feature and physical and chemical properties of the decom- posed PET microfiber fabrics were discussed. The activation energy was 18.77 kcal/mol and the dyeability of the decomposed PET microfiber fabrics was found to be improved as it was supported by the examined K/S values. Up to the 20% of the weight loss of the PET microfiber fabrics, K/S values incresed with increasing the weight loss. The melting temperature of PET microfiber fabrics decomposed by SPG-PG showed no fundamental change. Tensile strength of the decomposed PET microfiber fabrics decreased linearly in accordance with the increased the weight loss of the PET microfiber fabrics. The moisture regain and the tactilities increased in accordance with the increased the weight loss of the PET microfiber fabrics.

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