• Title/Summary/Keyword: LM polyester

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Effect of Heat Treatment on the Physical Properties of LM PET Jacquard Fabrics (저융점 폴리에스터 자카드직물의 물성에 대한 열처리 효과)

  • Lee, Sun Young;Kim, Jeong Hwa;Kim, Eui Hwa;Lee, Jung Soon;Lee, Seung Goo
    • Textile Coloration and Finishing
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    • v.25 no.3
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    • pp.206-214
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    • 2013
  • There has been an increasing demand for high performance and energy-saving of blind. In order to develop the eco-friendly blind textiles, heat treatment process has been utilized for LM(Low Melting) polyester fabrics and the changes of the physical properties of the treated fabrics were examined according to temperature of heat treatment. Morphology, surface reflectance, contact angle, luster, thermal property and mechanical property of heat treated LM polyester fabrics were investigated. As results, morphology analysis of thermal treated fabrics confirmed that degree of fusion of LM polyester yarns improved with increase of temperature. Surface reflectance of thermal treated fabrics decreased with increase of temperature. Luster and contact angle of a water droplet on thermal treated fabrics increased slightly with increase of temperature. The mechanical properties of the fabrics by KES-FB system were found to be temperature-dependent and especially, bending and shear properties among them were highly related to temperature.

Effect of Air-jet Texturing Conditions on the Physical Properties of Low Melting Polyester/Tencel Composite Yarn (에어제트 텍스처링 조건이 저융점 폴리에스터/텐셀 복합사의 물리적 특성에 미치는 영향)

  • Lee, Sun Young;Yoo, Jae Jung;Choi, Oh Gon;Lee, Si Woo;Lee, Seung Goo
    • Textile Coloration and Finishing
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    • v.25 no.1
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    • pp.47-55
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    • 2013
  • Physical properties of the composite yarn using low-melting(LM) polyester/Tencel were investigated with air-jet texturing conditions such as temperature, take-up overfeed, yarn speed and air pressure. Surface morphology, microstructure, tensile property, glossiness were evaluated. Surface morphology of a composite yarn had more damaged and loosened structure according to increase of take-up overfeed, yarn speed and air pressure. Crystallinity was affected by parameters such as temperature, yarn speed, take-up overfeed and air pressure and especially, yarn speed was most effective for increase of crystallinity. Also, it was found that temperature and air pressure had significantly affected tensile properties of a composite yarn. The glossiness of yarn increased with increase of temperature, yarn speed and air pressure.