• Title/Summary/Keyword: pet fiber

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Effects of Alkali Treatment on Physical Properties of PET Fabrics (알칼리 처리에 의한 폴리에스테르 직물의 물성 변화)

  • Yu, Hye-Ja;Choe, Jong-Myeong;Lee, Hye-Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.20 no.4
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    • pp.609-619
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    • 1996
  • Polyethylene Terephthalate (PET) has been used as a mainstream fiber to make silklike fiber. The silky characteristics such as softness, dry touch feeling and flexibility can be obtained by weight reduction treatment. In aqueous alkali solution, the surface of PET is dissolved away and reduced in weight. The PET fiber, yarn and fabric become thinner and the gaps between fibers are wider. Its mobility is greatly improved without change of basic structures of the treated PET fibrics. The alkali treatment was conducted under the various experimental conditions such as alkali (NaOH) concentration, treatment time and temperature. As the weight loss increased, drapability improved and tensile strength remarkably reduced. When the PET fabrics lost 30% in their weight, drape coefficient lowered as much as 30oA and tensile stregth lowered as much as 50%. The weight loss over 30% brings great improvement in drapability and dyeability and significant decline in durability. By the alkali treatment, absorbency in spectrophotometer of dyed PET can be increased as much as 82% due to the increase of the surface area and formation of microvoids on the surface.

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The Statistical Approach for Determining the Parallel-Bundle Strength from Single-Filament Data of PET (PET single filament 데이터로부터의 번들강도 결정을 위한 통계적 접근)

  • Cho, Kee-Hwan;Jeong, Sung-Hoon
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.291-292
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    • 2003
  • Although the tensile strength of textile materials are determined by that of their components, it is well known that the tensile strength of fiber bundles and yams is not accurately predicted from that of single-fibers by simple averaging methods or mathematical calculations, because of variations in their strength. Therefore, there have been attempts to interpret the bundle strength from that of its elements by the stochastical approach. (omitted)

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A Study on the Alkali Hydrolysis of Sea-island PET Ultra-microfiber (해도형(海島型) PET 초극세섬유의 알칼리 가수분해에 관한 연구)

  • Seo, Mal Yong;Lee, Jun Hee;Ok, Chi Min;Cho, Seong Hun;Lee, Jong Woo;Cho, Ho Hyun
    • Textile Coloration and Finishing
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    • v.25 no.4
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    • pp.303-313
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    • 2013
  • Alkali hydrolysis of sea-island PET 0.02denier microfiber were compared to those on the fabrics of the 0.06denier microfiber. In the dissolution of the sea component out of sea island type ultra-microfiber, it is important to determine the optimum division and divided material. Weight reduction of sea island ultra-micro sea island fiber was faster than regular PET about 10 times. Also 0.2denier sea-island ultra-micro sea island fiber has better color fastness (washing, friction, and daylight) than 0.06denier level sea-island ultra-microfiber. In this study, 0.2denier ultra-micro sea island fiber shows the possibility of high value product.

Treatment and Characterization of Polyethylene Terephthalate Fibers with Silicone Rubber Adhesive for Heat-Resistant Adhesion (실리콘 고무와 내열접착 향상을 위한 Polyethylene Terephthalate 섬유 접착층의 제조 및 특성)

  • Kim, Jihyo;Lee, Sangoh;Lee, Jaewoong
    • Textile Coloration and Finishing
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    • v.31 no.2
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    • pp.107-117
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    • 2019
  • In case of pure rubber materials, the initial quality of the rubber materials would be excellent, however, the durability against external impact might be poor. In order to overcome the relatively low durability, textile cord could be employed with silicone rubber. We have studied the improvement of heat-resistant adhesion properties of silicone adhesives between silicone rubber and PET fibers by applying various conditions including dip solution recipe. The silicone rubber used was a platinum catalyst curing type and platinum catalyst type silicone adhesive was used as an adhesive to obtain an optimum adhesive force. Furthermore, the bonding mechanism between silicone and PET fiber was established.

Deposition for PET Fabric of Macban Stone with RF Sputtering (RF Sputtering을 이용한 맥반석의 PET 직물에의 증착)

  • Lee, Hye-Ryeon;Choi, Soon-Hwa
    • Fashion & Textile Research Journal
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    • v.8 no.1
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    • pp.129-133
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    • 2006
  • To develope a high value-added fiber products which is useful in the human body physiology, the Macban stone was deposited on the PET fabric by sputtering and its effects were investigated. Then, a Macban stone target was prepared for sputtering treatment and treated on the PET fabric by RF sputtering process. After treatment, surface observation by SEM, far-infrared emissivity and emissive power, the fastness to washing and light, bacteriostatic rate, electrostatic, drape stiffness, and breaking strength of PET fabric were investigated. From these investigation, the following conclusions were obtained. 1) The Macban stone was able to deposit on the PET fabric, by the RF sputtering treatment which is eco-friendly dry textile finishing. 2) The far-infrared emissivity and emissive power of sputtered PET fabrics were increased. 3) When PET fabric was treated by sputtering with Macban stone, the amount of deposited Macban stone increased with increasing treatment time and it was deposited on the fabric surface firmly. 4) The bacteriostatic rate of sputtered PET fabrics was about 20%. 5) The electrostatic charge of fiber surface was reduced by sputtering. 6) The fastness washing to light of dyed fabric were improved by the deposition of Macban stone, but the breaking strength was not changed by sputtering. 7) The drape stiffness of sputtered PET fabrics increased with increasing treatment time.