• Title/Summary/Keyword: cotton/spandex knit fabric

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Anti-crease Finish of Cotton/Spandex Knit Fabric(II)-Setting Behaviors of Knit Fabric with Heat Treatment- (면/스판덱스 편성물의 구김방지가공(II)-열처리에 따른 편성물의 세팅 거동-)

  • 박흥수;이명학;김영호
    • Textile Science and Engineering
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    • v.37 no.12
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    • pp.744-750
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    • 2000
  • The methods to decrease crease of cotton/spandex knit fabric using heat treatment were investigated. Dry heat treatment, hot water treatment, and steam treatment were used to set spandex yarn in knit fabric. Length changes of spandex yarn in knit fabric. Length changes of spandex yarn in knit fabric treated or stored under various conditions were investigated. Wrinkle recovery rates, elongation, and tensile strength changes of the fabric were also measured. The length change of the spandex yarn in knit fabric treated with steam was larger than those treated with dry heat and hot water. It increased with increasing extension of spandex yarn in knit fabric. A long loop length of cotton yarn in knit fabric resulted in a smaller length change of the spandex yarn subjected to the same heat treatment due to the low extension of spandex yarn in fabric. The length of spandex yarn in knit fabric increased during storage even at room temperature. The crease of cotton/spandex knit fabric could be removed by setting spandex yarn in the fabric. Considering the strength retention and elongation, steam treatment was found to be the most effective to remove the crease of the knit fabric.

Anti-crease Finish of Cotton-Spandex Knit Fabric (I) -Setting Behaviors of Spandex Yarn with Heat Treatment- (면/스판덱스 편성물의 구김방지가공(I) - 열처리에 따른 스판덱스사의 세팅거동 -)

  • Park, Heung Su;Lee, Myeong Hak;Kim, Yeong Ho
    • Textile Science and Engineering
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    • v.36 no.10
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    • pp.784-790
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    • 1999
  • Setting behavior of spandex yarn in heat treatments for the anti-crease treatment of knit fabric made of cotton/spandex 2-ply yarn was investigated. Three different methods, i.e., dry-heat treatment, hot water treatment, and steam treatment, were used to set the spandex yarns. Setting properties were measured via length changes of the treated samples. Tensile strength retention and elongation of the treated samples were also measured. The results indicate that length changes of the samples treated with hot water and steam are larger than that treated with dry heat due to the presence of moisture. The length change of spandex yarns increases with increasing treatment temperature, time and extension. Among the three factors, extension has the most significant effect on the setting behavior. Spandex yarn set at a certain condition can be set again if it is treated under more severe conditions. Tensile strength and elongation of spandex yarn decrease with increasing length change.