Journal of Textile Engineering
Online ISSN : 1880-1986
Print ISSN : 1346-8235
ISSN-L : 1346-8235
Volume 52, Issue 4
Displaying 1-7 of 7 articles from this issue
Original Papers
  • Figure Characteristics of Persons Paralyzed One Side and Paralyzed on Lower Half Body
    Sadako MITERA, Naoto TANAKA
    2006 Volume 52 Issue 4 Pages 139-145
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    The figures of two types of paralysis of persons both paralyzed one side and paralyzed on the lower half body were measured, and the characteristics of their figures were analyzed in this paper.
    For persons paralyzed one side of the body, significant differences were observed in length and circumference dimensions. On the other hand, for persons paralyzed on the lower half of the body, differences were observed in circumference and breadth dimensions. Differences were observed in body figure characteristics depending on the disease that caused motor function disabilities and type of disability. The above figure characteristics is, therefore, much important for design of clothes for disabled persons.
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  • Yukako YAMADA, Mari INOUE, Kin IWASAKI
    2006 Volume 52 Issue 4 Pages 147-152
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    In the previous paper, we studied the ultraviolet ray shielding rate for cotton woven fabrics during the drying process from the high moisture regain. We found that the UVR shielding rate increased with decreasing moisture regain, and it showed a maximum in the drying process. In the present study, the UVR shielding rate was measured for stainless meshes as non-swelling materials and filter papers as unperforated materials in order to clarify the origin of the maximum of the UVR shielding rate for cotton woven fabrics, and ΔL* was measured as see-through property.
    The shielding rate of stainless meshes in wet condition was higher than standard condition and that of filter papers in wet condition was lower than standard condition. As the results, it was found that the shielding rate of fabrics decreased because of an increase in fiber swelling, but over a certain higher moisture regain, the shielding rate increased owing to a decrease in water contained in pore of the fabrics. The behavior of ΔL* of fabrics with the moisture was shown by the characteristics of stainless meshes and filter papers.
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  • Yukihiro TOKUMOTO, Masaki KAMO, Taro NISHIMURA, Takashi KOMORI
    2006 Volume 52 Issue 4 Pages 153-158
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    Water absorption by a textile is analyzed as a kind of retarding system, such as viscoelastic matter in creeping deformation. The function of the mass of absorbed water versus time is expanded into a superposition of an infinite or finite number of linear-retardation elements characterized by different time constants. The spectrum of retardation time obtained thus shows several peculiar peaks at isolated time values which are greatly different in order of magnitude depending on the sort or weave density of the textile. This approach of analysis may throw a new light upon the study of fluid penetration through textiles.
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  • Discussion Using Colored Judo Uniform
    Miho OSADA, Shigeo KOBAYASHI
    2006 Volume 52 Issue 4 Pages 159-164
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    Our previous four papers are based on the change in exposure frequencies by an experimental method. On the other hand, this study is concerned with a possibility of the mere exposure effect exhibited in a daily life situation. After a blue judo uniform was approved by International Judo Federation (IJF) in October, 1997, we studied whether the mere exposure effect appears in case of a blue judo uniform among judo team students in three universities who have more exposure of judo uniform. Also we studied a change in preference for the colored judo uniform among non-judo team students in a university and a college who have less exposure of judo uniform, before and after the Sydney Olympic.
    Among judo team students, preference for women's blue judo uniform is increased with the passage of time, this is the mere exposure effect, while a great change in preference for a blue judo uniform was not seen among non-judo team students.
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Notes
  • Kazunori YASUDA, Minetaka NISHIMURA, Kunji CHIBA
    2006 Volume 52 Issue 4 Pages 165-169
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    The objective of this study is to well understand the migration and orientation of thin micro-particles, such as talc and mica, in a suspension flow through a slit channel as well as to obtain the knowledge of the sheet processing operations of thin micro-particle reinforced composites by means of both experiments and numerical simulations. The following result was obtained in this study: (1) migration of thin micro disk-like particles did not occur in a slit channel flow, thus the concentration distribution was almost uniform: (2) transparent/translucent strand pattern observed in a suspension flow with thin micro disk-like particles was ascribed to the flow-induced shade region produced by disk-like particles, i.e., this phenomenon arises from frequent flip-over of disk-like particles.
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  • Kazunori YASUDA
    2006 Volume 52 Issue 4 Pages 171-173
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    There are many viscosity equations to describe a shear-thinning viscosity of non-Newtonian fluid. In the present study, a multi-mode viscosity equation to more accurately fit measured data was proposed. The viscosity data were obtained for aqueous solutions of carboxymethylcellulose using a cone-and-plate rheometer. Consequently, the fitted results using the proposed viscosity equation to the measured data were very good.
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  • Hidetake SUZUKI, Takashi OGIHARA, Koji NAKANE, Nobuo OGATA
    2006 Volume 52 Issue 4 Pages 175-178
    Published: 2006
    Released on J-STAGE: November 07, 2006
    JOURNAL FREE ACCESS
    Alumina precursor film was coated on carbon fibers by a sol-gel method using aluminum alkoxide solution. The optimum coating condition for the concentration of alumina alkoxide and silane coupling agent was determined to uniformly coat alumina precursor on carbon fibers. Alumina precursor converted to alumina ceramics by heating at 750 °C. SEM and EPMA showed that alumina ceramics was uniformly coated on carbon fibers. The thickness of alumina layer increased with increasing coating times. The crack and uneven surface was observed on alumina layer when the thickness was over 0.8 μm. Tensile strength of carbon fibers coated by alumina ceramics was higher than that of original carbon fibers.
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