JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES
Online ISSN : 1884-6599
Print ISSN : 0037-2072
ISSN-L : 0037-2072
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Volume 22, Issue 4
Displaying 1-5 of 5 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 22 Issue 4 Pages 121-125
    Published: April 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.121
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 22 Issue 4 Pages 126-130
    Published: April 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.126
    JOURNAL FREE ACCESS
    Download PDF (3746K)
  • [title in Japanese]
    [in Japanese], [in Japanese]
    1981 Volume 22 Issue 4 Pages 143-148
    Published: April 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.143
    JOURNAL FREE ACCESS
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  • Washing Behavior of Liquid Flow Part 1
    Theoretical Study on Energy Given to Soiled Materials by the Liquid Flow
    Takashi Hiramatsu, Akiko Kotani
    1981 Volume 22 Issue 4 Pages 149-153
    Published: April 25, 1981
    Released on J-STAGE: January 31, 2011
    DOIhttps://doi.org/10.11419/senshoshi1960.22.149
    JOURNAL FREE ACCESS
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    Since most mechanical actions given to soil particles coexist with the liquid flow actions, it is important to separate and analyse the behavior of the liquid flow. In the first step, a mechanical relationship has been discussed between soiled matters and the liquid flow. The amount of energy (E) given to soiled matters by the liquid flow until a specified time t is generally expressed by:
    E=1/2SCρ∫toφ3dt
    where
    S : area of soiled matters vertical to the liquid flow,
    C : liquid drag coefficient of soiled matters,
    ρ: density of the liquid and
    φ: relative velocity of the liquid flow to soiled matters.
    For example, if φ is constant, E is proportional to φ3 and t. The amount of energy, mV2/2 is given to soiled matters for a relatively short period of time of about one second, if soiled matters are kept in the liquid flow having the velocity V of circulating water in an electrical laundering machine for home-use. We have also investigated the characteristics of liquid flow near the soil particles in the fabrics and shown that the amount of energy given to soil particles from the liquid flow is proportional to the energy given to fabrics.
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  • Sorption Behavior of Odorant Materials Part 1
    Sorption Behavior of p-Toluidine and n-Caproic Acid/Fabrics Systems
    Hiromi Gocho, Toshinari Nakajima
    1981 Volume 22 Issue 4 Pages 154-159
    Published: April 25, 1981
    Released on J-STAGE: September 30, 2010
    DOIhttps://doi.org/10.11419/senshoshi1960.22.154
    JOURNAL FREE ACCESS
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    Equilibrium sorption behaviors and kinetics were investigated of p-toluidine and n-caproic acid by several different kinds of fabrics; wool, cotton, rayon, acetate, nylon, acrylics and polyester.
    Sorption measurments were carried out at 20, 25 and 30°C with the weighing bottle and the quartz spiral balance in an evacuated chamber.
    For these organic vapors, the sorptive capacities of acetate, wool and rayon were much higher than those of acrylics and polyester. The diffusion coefficients for these systems were determined from sorptionrate experiments. Taking into account both equilibrium and kinetic data, the fabrics should be arranged in order of increasing sorptivity twoward p-toluidine vapor; polyester, nylon, cotton, acetate and wool. Further, for n-caproic acid/wool system, the activation energy for sorption was evaluated about 14 Kcal/mol which was almost equal to the value of heat of evaporation of n-caproic acid.
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