• Title/Summary/Keyword: Rib knitted fabric

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A Study on the Tensile Properties of Plain-rib Knitted Fabrics (Part I) - A Study on Estimation of Stitch Length- (plain-rib 편포의 신장특성에 관한 연구 (I) -편환장 추정에 대하여-)

  • 이덕래;송주호
    • Textile Science and Engineering
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    • v.19 no.4
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    • pp.1-8
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    • 1982
  • A unit structure model of 1 ${\times}$1 rib knitted fabric in limited stretch state is presented for the purpose of theoretical calculation of the uni-axial tensile properties of the fabrics. An equation relating to the course-spacing, the wale-spacing, the stitch length and yarn diameter was obtained by the model The stitch length may be formulated as the following equation.

A Study on the Tensile Properties of Plain Rib Knitted Fabrics(III) -The Course and Wale-wise Stress-Strain Curves during Deformation Process after the Limiting Stretch Ratio- (Plain Rib 편포의 신장특성에 관한 연구(III) -한계신장비 후의 신장곡선에 대하여-)

  • 이덕래
    • Textile Science and Engineering
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    • v.24 no.3
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    • pp.8-12
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    • 1987
  • In order to investigate the tensile properties of the plain rib knitted fabric, a three-dimensional model of the limited stretch was established. For the tensile properties of the plain rib knitted fabrics, the yarn diameter, the yarn elongation, the frictional coeffcient of the yarn, and the course and wale spacings were taken as the parameters. An equation that could represent the effect of these parameters on the tensile properties was formulated by using them.

A Study of the Tensile Properties for Poly(trimethylene terephthalate, PTT) 1×1 Rib Knitted fabrics (Poly(trimethylene terephthalate, PTT) 1×1리브 편성물의 신장특성에 관한 연구)

  • Choi, Jae-Woo;Jang, Boung-Sik
    • Journal of the Korean Society of Industry Convergence
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    • v.9 no.4
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    • pp.337-341
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    • 2006
  • The tensile properties of Poly(trimethylene terephthalate, PTT) $1{\times}1Rib$ knitted fabrics were experimentally studies, and the specimens has $1{\times}1$ rib stitched structure which are weft knitted fabrics with various lengths of loop. The $1{\times}1$ rib weft knitted fabric showed larger tensile linearity, tensile energy and tensile resilience in the direction of courses. The tensile properties increased with increasing the loop density in all directions, and perfectly increased with the course directions than the wale directions.

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A Study on the Mechanical Properties of Fiber Reinforced Thermoplastic Composites with Weft Knitted Fabrics (위편성물 구조를 갖는 열가소성 복합재료의 역학적 특성 연구)

  • 이덕래;김학용;최종주;서민강
    • Textile Science and Engineering
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    • v.36 no.2
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    • pp.168-175
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    • 1999
  • Knitted fabrics are made by the interlocking of loops of yarn. Weft knitted fabrics are produced by the same yarn which forms loops successively at each needle of the needle bed during the same knitting cycle. This paper describes the prediction of tensile properties of thermoplastic composites reinforced with weft knitted fabrics. The tensile properties of weft knitted fabric composites in wale direction decreased linearly with increasing stitch density. The range of the orientation angle of cross-over part were 2.5$^{\circ}$$\leq$$\theta$$\leq$8$^{\circ}$. The tensile strength of plain knitted fabric composites in wale direction were about 2.0 times higher than that of rib knitted fabric composites of the same apparant density.

A Survey on the Actual Wearing Condition of Clean Room Wears (Clean Room Wear의 착용실태에 관한연구)

  • 김경화
    • Journal of the Korean Society of Costume
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    • v.48
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    • pp.117-132
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    • 1999
  • This study is focused on the questionaries regarding the physiological comfort and body fitness and freedom of movement for clean room smock and intended to present the basic information in designing more comfortable clean room wear through seizing the discomfort of wearet. The study is designed to survey and analyze the actual wearing condition and its problem applied to 400 workers assigned with two semiconductors manufacturing plants. The result of survey are as follows. 1. Clean room workers bras panties running shirts and 내찬 the as basic underwear since they absorb sweat protect their bodies and make them feel safe and comfortable throughtout the whole year. 2. With regard to body fitness most of the subject assessed it to be suitable but the girth of neck waist and hood is founded to be tight in many cases. 3. Most important selecting criteria of clean room smocks are adaptability of movement body fitness and carrying-ability. Most of repondents prefer side zipper and rib-knitted fabric as the fastening system. 4. As for freedom of movement it is disclosed that the subjects showed more or less of their complaints against its wearing easiness for parts of waist neck armpit and slacks adaptability and adaptability of movement.

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