Journal of the Textile Machinery Society of Japan
Online ISSN : 1881-1159
Print ISSN : 0040-5043
Volume 2, Issue 2
Displaying 1-10 of 10 articles from this issue
  • Chapter 1. Introduction
    Teruwaka Ogawa
    1956 Volume 2 Issue 2 Pages 1-21
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
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  • Kazuo Mihira
    1956 Volume 2 Issue 2 Pages 22-35
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    The possibility of a new draft-cut spinning system which makes use of the conventional machinery of the Per-Lohke system is discussed in the following article. Through consideration of the various tow-to-sliver processes, optimum conditions are arrived at as a basis for the new draft-cut spinning system introduced herein.
    Firstly, the draft-cut machanism is explained theoretically by citing the theories of probability and geometry.
    Secondly, the characteristic features of the tow-treating method and equipment are explained, and the relationship between treatment conditions and the effect of treatment is qualitatively shown.
    Thirdly, the author tries to establish the validity of his theory by experiments. The results obtained thus far from the experiments generally satisfy the theory he has developed.
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  • Shigeru Watanabe
    1956 Volume 2 Issue 2 Pages 36-37
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    The effect of slipping on the drafting number has a relationship with the roller weight, the roller gauge, the material of which the roller surface is made, the friction in the bearing of the top roller, etc. The following article is a theoretical approach to this problem.
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  • Takeo Yamagishi, Eikichi Koyama, Hideo Kuroe
    1956 Volume 2 Issue 2 Pages 38-41
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    We have tried to approach theoretically the problem of the draft processes under the so-called unstationary condition, under which the peripheral velocity of rollers and the weight of fed sliver change at random. We haue then sought to clarify the qualitative trait with respect to the ralative correlations among three variables, namely, the peripheral velocity, the weight irregularity of fed sliver and the weight irregularity of spun sliver.
    To sum up the results of our inquiry:
    (1) Where peripheral velocity of rollers and the weight of fed sliver change at random, the weight of spun sliver is generally shown by the following formula:
    (2) The weight irregularity of spun sliver is generally smaller where the peripheral velocity changes periodically than in the assumed case of draft in which the equation v1(t)w1(t)=v2(t)w2(t) is formed.
    (3) The weight irregularity of spun sliver is generally greater where the weight of fed sliver changes periodically than in an assumed case of draft in which the equation v1(t)w1(t)=v2(t)w2(t) is formed.
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  • Yoshito Miura, Sueo Kawabata
    1956 Volume 2 Issue 2 Pages 42-47
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    The roving tension between a guide rod and a traverse guide is the sum of the withdrawing tension T and the frictional force between the roving and a guide rod.
    The larger the withdrawing angle is, the larger the discrepancy between the observed and the calculated tension T and also the larger the variation of the observed value.
    The height of the guide rod under equal tension at the top and bottom of each bobbin layer is about 1/3 of the bobbin length.
    The maximum values of draft of each layer of bobbin are practically the same.
    So far as tension is concerned, the package can be made much larger than the present size.
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  • Masayuki Tsuzuki, Yoshinobu Tanaka, Yoshio Kamimura, Hisanobu Hayashi
    1956 Volume 2 Issue 2 Pages 48-51
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    To determine the optimum size of the split ring for a cop-change bobbin, we have analyzed the elastico-plastic behaviors of the ring when it is fitted onto the bobbin, and established the following relations: With the ring data given as γ0, d, σY, E, r, D1, D2, (see Figures 1 and 2), we can first calculate mc by the equation (9), and then ΔDc' min can be found easily from Figure 5. On the other hand, ΔDc' min must satisfy the condition (25) if the ring is to be fixed firmly onto the bobbin. An analysis made by this procedure on a Japan Industrial Standards (JIS) ring shows that the diameter of the ring wire is too large for the ring to be fixed firmly on the bobbin.
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  • Researches on the Performance of the Belt-Type Automatic Card Stripper
    Yasushi Niitsu, Seiichi Suzuki, Akira Yoshikawa
    1956 Volume 2 Issue 2 Pages 52-56
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    Presented in this article are the results of a performance test of the belt-type automatic card stripper designed by us. The results are:
    1. The variation in the weight of the card sliver has been shown to be not significant, irrespective of what the period of the nozzletraverse is.
    2. The yield of the card sliver increases and the nep counts decrease.
    The the belt-type is simpler in biuld than the other ACS's (for “automatic card strippers”) which we have previously tested.
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  • Naozo Fukaya, Shimpei Chikaraishi, Kiyoshi Ikemoto, Takeshi Ninomiya, ...
    1956 Volume 2 Issue 2 Pages 57-60
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    The purpose of this study is to make the conventional ageing process for alkali-cellulose into a continuous process and to reduce manufacturing cost. Several test machines have been made and studied, and the last of them has been found to satisfy all the conditions required of a continuous ageing machine. The total length of time for ageing by this machine is about 3.5 hours, and the products obtained are superior to those made by conventional processes.
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  • Kiyohisa Fujino, Akira Horikawa
    1956 Volume 2 Issue 2 Pages 61-64
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    From a study of the working of a conical roller expander, the authors have derived formulas for calculating the state of contact between cloth and expander, tension on cloth, and the degree of expansion.
    The area of contact of cloth with the expander roller reaches a maximum at both ends of the roller, when a very close contact is obtained. The ends of the roller, then, contribute most to the expanding action. The speed of cloth is nearly equal to the surface speed of the ends of the roller; a considerable amount of slip between cloth and roller is inevitable in the middle of the roller. Here the expanding action is weak and the cloth relaxes. Cloth relaxation is difficult to control.
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  • Susumu Kitazawa
    1956 Volume 2 Issue 2 Pages 65-70
    Published: 1956
    Released on J-STAGE: July 08, 2008
    JOURNAL FREE ACCESS
    This article deals with practical researches by the author on the carbonizing and neutralizing processes. Main points of the article are:
    1. The large amount of grease left in wool lowers the acid content. The decline in the acid content, however, does not affect carbonization very much. The grease lessens damage to wool.
    2. I have measured the distribution of the temperature and humidity in carbonizing operations in which a Temma MH-type carbonizing drier is used.
    3. I have studied the carbonizing condition under varying degrees of steam pressure.
    4. I have studied the effect of neutralization operations by using three-bowl neutralizing frames.
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