• Title/Summary/Keyword: 위편성물

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Effect of Weft Knit Structural Characteristics on the Subjective Texture and Sensibility (위편성물 소재의 구성특성이 주관적 질감 및 감성에 미치는 영향)

  • 주정아;유효선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.11
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    • pp.1516-1523
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    • 2004
  • The purpose of this study were to analyze the effect of weft knit structural characteristics on the subjective texture and sensibility. For this, the material was knitted into 8 kinds of weft plain knit fabrics with four kinds of fiber components such as wool, acryl, rayon, and nylon, 3 steps of densities and 3 steps of twist numbers to ply two yarns. The data were analyzed by factor analysis, ANOVA and multidimensional scaling. From factor analysis, subjective textures were categorized as 'bulk/resilience', 'surface/density' and 'soft/drape', and subjective sensibilities were categorized as 'natural/comfortable', 'feminine/elegance' and 'stable/neat' Among the knit structural characteristics, the component of fibers and the density of fabrics were the important factors to give variations in texture and sensibility : In comparison with wool knit of medium density, the knit fabrics of other components and different densities each showed a unique texture and sensibility. But twist number to ply two yams had a few influence on subjective properties. As a result of MDS analysis, the texture and sensibility of plain weft knit fabrics was classified as 'thin-full', 'hard-soft', 'young-old' and 'warm-cool'.

위편성물 강화 열가소성 복합재료의 인장특성 연구

  • 이덕래;김학용;최종주;서민강
    • Proceedings of the Korean Fiber Society Conference
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    • 1998.10a
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    • pp.435-438
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    • 1998
  • Textile composites란 직물, 편성물, 브레이드 등을 사용한 섬유강화 복합재료의 총칭으로서 텍스타일이 지닌 뛰어난 기능을 매트릭스에 부가함에 따라 단일재료로는 얻지 못하는 뛰어난 공업재료를 만들 수 있다. 편성물은 직물이나 브레이드에 비해서, 변형특성도 매우 우수하고 고생산성이다. 복합재료에서 강화재로 편성물을 사용하는 경우, 섬유소재, 편조직, 편환 밀도 등을 고려하는 것에 의하여 편성물 강화 복합재료의 역학적 특성이 달라진다. (중략)

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A Study on the Optical Properties of the Filament Yarn Weft Knit Fabrics and the 3-dimensional Model (필라멘트로 구성(構成)된 위편성물(緯編成物)및 모델의 광학적(光學的) 특성(特性)에 관(關)한 연구(硏究))

  • Shin, Hye-Sun;Kim, Jong-Jun;Jeon, Dong-Won
    • Journal of Fashion Business
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    • v.6 no.5
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    • pp.1-11
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    • 2002
  • Today, great percentage of apparel fabrics comprise knit products. A few apparel items are almost exclusively made from knit products including sweaters, T-shirts, lingerie, and hosiery. In weft knits, intermeshing yarn traverses the fabric crosswise. The production rate of knitting machines is about four times higher than that of conventional looms iin proportion to the amount of fabric produced per unit time. Knit apparels fabrics are noted for freedom of body movement, easy-care, resilience, soft draping and quality. The appearance of fabrics is of prime importance along with tactile features such as smoothness, crispness, stiffness when we deal with the handling evaluation of the textiles. In practice, the quality and performance of fabrics judged by sighted evaluators, and it is perhaps logical, in attempting to establish an effective fabric objective measurement system. It is worthwhile to make objective measurement that correlate well with subjective evaluations made by sight and touch together. However, it often imposes difficulties to effectively measure and analyze the appearance or optical properties of the textile surface features. In this study, an attempt is made to provide a preliminary approach to the analysis of the gloss property, which is one of the optical properties of fabrics. The specimens range from 70/24 nylon 6 filament yarn knit fabric to 70/68 nylon 6 filament yarn knit fabric, the latter being finer. A few three-dimensional models based on Peirce's model of knit stitch have been proposed and material properties were given to calculate the properties. Goniophotometric measurements of the specimens were also carried out.

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.

재봉(裁縫)바늘의 위편성물(緯編聖物) 관통(貫通)에 관한 연구(硏究)

  • Lee, Choon-Gye
    • Journal of the Korean Society of Costume
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    • v.11
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    • pp.51-60
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    • 1987
  • The penetration force of needle and penetration energy kave been investigated, in order to research into the sewing factors that influence the weft knitted fabric with high elastic property. The results of the studies are a follows: (1) As the results have showed a high correlativity between the needle penetration energy and force, it proves that the dynamic energy produced by the friction of the needle as it penetrates and withdraws from the knitted fabric contributes to the heat growth of the needle. (2) To reduce frictional force the use of thin needles, medium ball point needle and super needle are effective. (3) The reduction in number of plies of fabric or also in the case of a decrease in penetration speed have been effective in lowering the penetration energy and force.

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Influence of Construction Combination of Rib Stitch and Milan Stitch on Objective Hand Values of Weft Knit (위편성물에서 Rib stitch와 Milan stitch의 편성결합이 태에 미치는 영향)

  • Kwon, Jin;Kwon, Myoung-Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.1 s.160
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    • pp.68-76
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    • 2007
  • The purpose of this study is to investigate change of mechanical and physical properties, shape behavior and hand value in weft knit when rib stitch and milan stitch are combined. The knit stitches used in this study are plain stitch, half milan rib stitch, milan rib stitch, $2{\times}1$ rib stitch, $2{\times}1$ half milan rib stitch and $2{\times}1$ milan rib stitch. We analyzed physical and mechanical properties(tensile, bending, shear, compression, surface properties, thickness and weight) of the knit stitches and calculated their primary hand value and total hand value through translational formulas using the KES(Kawabata Evaluation System). The results are as follows; In evaluation of mechanical properties and hand values of knit stitches, plain stitch had the highest flexibility and the lowest T.H.V. as women's winter knit wear. Since $2{\times}1$ rib stitch had too high elongation in one direction, although it had the highest T.H.V, it needs to be careful when plain stitch and $2{\times}1$ rib stitch are applied for women's winter knit wear. Since Milan rib stitch and $2{\times}1$ milan rib stitch had high T.H.V. similarly, it is considered that they are suitable for women's winter knit wear. Specially, when Milan stitch is combined with $2{\times}1$ rib stitch, its shape stability and fullness are contained and flexibility is added on it. Therefore, $2{\times}1$ milan rib stitch can be also applied for women's winter knit wear.

Effects of Fiber Contents and Loop Length of Weft Knit on Subjective Texture and Preference-Using SEM- (위편성물의 혼용률 및 편환장이 주관적 질감과 선호도에 미치는 영향 -구조방정식 이용-)

  • Roh, Eui-Kyung;Ryu, Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.7
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    • pp.1128-1138
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    • 2007
  • The purpose of this study is to develop the relationship model among subjective texture and preference of weft knit according to fiber contents of wool/rayon and loop length by integrating previous research work. SPSS and SEM method using AMOS program were used to analyze data which used to correlation matrix to be standardized. The texture of weft knit were classified into 4 categories: irregularity, flexibility, bulkiness, extensibility. The fiber contents of wool/rayon had effect positively on irregularity, bulkiness and extensibility and that had little effect on preference. The loop length had effect positively on irregularity, flexibility and extensibility and that had effect negatively on preference. This measurement model will be input for testing causal research model that can explain how fiber contents of wool/rayon and loop length of weft knit influence on subjective texture.

An investigation on the mechanical properties of cable stitches in weft knitting (위편성 케이블 조직의 편성법에 따른 물성 평가)

  • Choi, Wonseok
    • Journal of the Korea Fashion and Costume Design Association
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    • v.20 no.4
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    • pp.73-82
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    • 2018
  • This research investigated the mechanical properties of the 4 different types of $3{\times}3$ cable stitches on weft knitted fabrics. The 4 kinds of cable-stitch fabrics were knitted under the same knitting conditions, then the mechanical properties, such as tensile strength, elongation, stiffness, etc. were measured according to the Korean Industrial Standards (KS K 0642). The knitting time for the sample produced by the knitting process 1 was the shortest among the 4 different types of samples. It means that the knitting process 1 would have benefits of higher productivity if there is no yarn breakage during the knitting of the cable stitches. In the test for tensile strength, the samples produced by knitting processes 3 and 4 have tensile values of approximately 8~11% higher than the sample produced by knitting process 1. The test for elongation also shows that the samples produced by knitting processes 3 and 4 have up to 18% higher elongation values than the sample produced by knitting process 1. On the other hand, the stiffness test showed no significant difference between the 4 samples. This study is expected to increase the competitiveness of the local knitting industry as a result of providing basic data on the mechanical properties of special knitted stitches, such as cable stitches.

Effect of Knit Structure on the Drapability of Weft Knitted Fabrics (편성조직의 위편성물의 드레이프성에 미치는 영향)

  • Suh, Jung-Kwon
    • Journal of the Korea Fashion and Costume Design Association
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    • v.14 no.1
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    • pp.111-121
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    • 2012
  • This study focused on the plane and side drape coefficients of weft knitted fabrics as a function of knit structure, stitch density, and stiffness. Fifteen weft knitted fabrics are produced with five different structures (interlock, single pique, royal interlock, cross miss interlock, and mock royal interlock) and three different gauges (7G, 10G, and 12G). Five knit structures were the application of knit, tuck, and miss stitch on the basis of interlock of the double knit fabric For this purpose, three-dimensional shapes of the draped sample were obtained by using a drapability tester which can record the contour line coordinates of a projected plane drape. Then, projected shapes of the plane and side drape were derived from those three-dimensional ones to review the relationship between plane drape coefficients and side ones. It was found that the theoretical values of plane and side drape coefficients depending on the change of deflection angles fit to their experimental ones. A5 a result of a regression analysis of the relationship between plane and side drape coefficients, the relationship could be expressed as $y=0.5838x-0.0065x^2+9.03{\times}10^{-5}x^3$. In case of mean of drape coefficient, it was increased according to the rule of that the more tuck and miss stitch overlap. A high degree of correlation was found between stiffness and drape coefficient. The regression equation of drape coefficient($y$) can be represented by $y=y=\sqrt[3]{Stiffness}-10.72$.

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