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2006 / ȣ: V.18,no.1,Feb |
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ƼƮ/ ջ Ư 3D CAD System ܰƯ |
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Mechanical Properties and 3D CAD Images of the Appearance of Knitted Fabric with Acetate/Polyester Composite Yarn by Different Yarn Twisting Methods |
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1․․ڿȯ |
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So Jin Kim1, Dong Won Jeon and Young Hwan Park |
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ȭڴб Ƿа, *ѱ п |
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Ewha Womans University,Korea Institute of Industrial Technology |
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33 ~ 43 : 11 |
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Korean |
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The purpose of this study was to examine the effect of different yarn twisting methods on mechanical
properties and 3D CAD images of plain knitted fabrics made of composite yarns. Six yarns were used in this
study: four different composite yarns of the six consist of acetate and functional polyester (Poly-M) with the ratio
of 70:30, and the rest two are the original acetate 100% yarn and the poly-m 100% yarn. The four kinds of
composite yarns were processed in combinations of twisting processes such as interlacing, false twisting, two for
one twisting, combined twisting and single covering, and the two original yarns were knitted without any
twisting process. Sixteen mechanical properties of all the six knitted fabrics, knitted under the same knitting
conditions, were measured by KES-FB system with the outer knit condition. The results were as follows; 1) When
the sample applied with the false twisting process at the temperature as high as 220, EMT, B, HB, G and RC
values of samples increased which leads to increasing dimensional stability. 2) To gain the high bending and shear
properties in the single covering process, selecting the core yarn with such properties is the most important factor.
3) Interlacing process effected to increase RC value. 4) False twisting process after interlacing process gave
bulkiness and un-interlaced part in yarn was increased SMD value. The SMD value of the knitted fabric of the
composite yarn, which was put through the combined twist process, was higher than those of which simple
process such as the two for one twist or the single covering process applied. In order to achieve the silk-like
surface feel of knitted fabric, the single covering process is recommended. 5) Examining the simulation images
of the knitted fabrics of composite yarn, which were generated by the 3D CAD system based on the mechanical
properties of the fabric, led that appearance could be changed as different twisting methods were applied. |
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KES-FB, Twisting, Interlacing, False Twist, Single covering, 3D CAD Image |
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Reference |
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2006_v18n1_33 |
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