Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan)

Erratum

1996 Volume 49 Issue 7 Pages e1
Published: 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_e1

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Analysis of Blend Defects in Gill Sliver

Part 1 : Detection of Blend Defects by Line Sensor

Masaaki Okamura, Fujio Konda, Shinya Kurosaki, Yasuhiro Tuchii

1996 Volume 49 Issue 7 Pages T159-T165
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_T159

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The purposes of this study are to detect the blend defects in gill sliver by using the photoelectric device and to check the blend state of the sliver delivered from gill box at real time. This paper reports on a method for detecting the blend defects in the gill sliver composed of white and black fibers. The gill slivers were illuminated uniformly by two lights and were measured by mean of 2048 bits line sensor. Thevideo signals output from the line sensor were converted to digital signals at three bright levels for detecting the blend defects.
The distribution curves of the size of the blend defects were obtained for the slivers produced by gilling three and five times. The shapes of the curves of white and black colour defects weresimilar, and the number of the blend defects decreases rapidly as the size of the defect increases. The shape of the curve of the blend defects changes with the gilling number. Therefore, it is clear that the blend state ofthe gill sliver can evaluate by the shape of the curve.

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Washing Durability of Cotton and Wool Fabrics Treated by Plasma Polymerization of Perfluorocarbons

Mitsuru Tahara, Yoichi Nakashima, Katsuhiko Miyazaki, Toru Takagishi

1996 Volume 49 Issue 7 Pages T166-T174
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_T166

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Plama polymerization forms thin polymer films. Thus when plasma polymerization is applied to fabrics, it is expected that handling and durability under repeated washing are improved and more increased compared to resin finish. However it is known that CF₄, plasma polymer does not show sufficient durability forlaundering.
In this investigation plasma polymerization of perfluorocarbons, C₂F₄, C₃F₆, C₃F₈, and C₆F₆, on cotton and wool fabrics has been carried out. It was found that the surface morphology of film on the plasma-polymerized fabric depends on the kinds of gas employed. After the plasma polymerization on the fabric, the friction coefficient of the resultant fabric increased and the handling of the fabric became rough to the touch. With the cotton fabric water repellency gradually decreased under repeated washing. Also the wool fabric showed the good properties of waterproof and shrinkage resistance even after 30 laundry cycles.

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Trial Makings of String for “Koto” (Japanese Harp) Using Silk-like Polyester Fiber

Hiroki Ishikura, Shigekazu Yamashita, Hitoshi Torigai, Youichi Taniyam ...

1996 Volume 49 Issue 7 Pages T175-T182
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_T175

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Koto strings had been made of silk fibres until a few decades ago, but silk strings are susceptible breakage during performance. In recent years, ordinary polyester strings are almost always used. However, many players love the tone quality of the silk strings. Therefore it is important that a Koto string is developed which has the tonal quality of silk but of greater strength. We thougth the tonal quality is affected by the fibre shape, and developed strings using silk-like polyester fibres. The physical tone properties of the Silk-like polyester strings and the ordinary strings were investigated with a FFT analyzer. The tone of silk-like polyester strings included a lot of high-fre-quency components as compared to silk strings, and the tone of silk strings mostly consist of basic mode and over tones of basic mode The tone of silk-like polyester strings include various frequency components. The frequency properties of silk-like polyester strings resemble the ordinary polyester strings.

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Examples of Applying Virtual Reality to Planning and Designing in Apparel Industry

M. Yamakawa

1996 Volume 49 Issue 7 Pages P343-P353
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_P343

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Today's Trend of Virtual Fitting System

H. Imaoka

1996 Volume 49 Issue 7 Pages P354-P359
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_P354

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Virtual Reality and Dressing Environment

Y. Sakaguchi, T. Harada

1996 Volume 49 Issue 7 Pages P360-P368
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_P360

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[title in Japanese]

S. Ito, K. Morimoto

1996 Volume 49 Issue 7 Pages P369-P376
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_P369

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[title in Japanese]

K. Kakumoto

1996 Volume 49 Issue 7 Pages P377-P379
Published: July 25, 1996
Released on J-STAGE: October 27, 2009

DOIhttps://doi.org/10.4188/transjtmsj.49.7_P377

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