JAPANESE JOURNAL OF CLOTHING RESEARCH
Online ISSN : 2424-1660
Print ISSN : 0910-5778
ISSN-L : 0910-5778
Volume 39, Issue 1
Displaying 1-9 of 9 articles from this issue
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  • Atsuko Kawabata, Hiromi Tokura
    1995 Volume 39 Issue 1 Pages 11-19
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      We compared core temperature during night sleep under the influences of two kinds of quilt with different thermal insulation between upper and lower half sides at an ambient temperature of 18℃ and a relative humidity of 50%RH in 6 healthy adult women. One quilt has a thick part (12.0cm) in the upper half and a thin part (5.0cm) in the lower half (Quilt A), and the other has a thin part (5.0cm) in the upper half and a thick part (12.0cm) in the lower half (Quilt B). The subjects wore shirts with half sleeves and breeches during sleep. They slept on a bed with sleeping mat from 22:00 to 6:00, using either Quilt A or Quilt B. The main results were that rectal temperature fell quickly in Quilt B after retiring at 22:00, being kept lower significantly throughout the whole night sleep and all subjects preferred Quilt B to Quilt A as quilt for comfortable sleep. We discuss these findings in terms of thermal physiology.

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  • Kazuyo Okabe, Nobuko Yamana, Yaeko Zenitani, Chikako Nakano
    1995 Volume 39 Issue 1 Pages 21-30
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      We proposed the method of measurement of swinging properties for clothes when wearing. The fluorescent agent has radiating character under the black light, which is applied to the method of measurement in this report. At first, radiating characters for various threads, clothes, seals and beads with fluorescent agent under the black light were investigated experimentally. And next, two types semiutight skirts with 45cm and 65cm for the length were made of gray flannel clothes, and were sewn the white thread with fluorescent agent into these skirts. Finally, the wearing test using these skirts were carried out under the black light, for example, the panels worn these skirts and raised their right legs slowly to give the swing motions for skirts, and then the swinging properties were recorded as the continuous locus of the radiants.

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  • Ayako Terauchi, Kaori Murakami
    1995 Volume 39 Issue 1 Pages 31-42
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      The extent of fatigue of the workers in the tomato-vinyl-green-house was investigated on the spot. Their fatigue, as a result, were easy to become chronic, although the daily works inside the vinyl-house are not so stressed. Furthermore the sunburn accelerated the fatigue becoming chronic.

      Then 6 type of UV-cutting fabrics with different finishings and materials were screened to choose the one suitable for the working clothes, which relieves the fatigue by preventing the sunburn. One type of UV-cutting fabric made of 100 % cotton with knitted texture possessed the high regain and smart air permeability. Also the fabric shielded the UV-ray at high rate, and the shielding effect was kept after repeated washing.

      A working clothes was made from the fabrics above mentioned, and clothes from non-finished cotton fabrics, UV-cutting polyester fabrics and normal cotton fabrics were also prepared for comparison. The temperature and humidity within clothes with cotton UV-cutting fabrics could be well controlled and was comfortable for the worker, while the clothes with UV-cutting polyester fabric was less comfortable due to the humidity increase inside the clothes in spite of the comparative UV-cutting property.

      Thus the wearing environment during work in the vinyl-green-house can be improved by choosing the UV-cutting fabrics with suitable material for working clothes.

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  • Michiko Nakahashi, Masaki Murayama, Yuka Nogami
    1995 Volume 39 Issue 1 Pages 43-49
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      Air porosity is an important performance of clothing material to consider the comfortable clothing.

      Air porosity is estimated by a calculation formula. A suitable experiment method has not been found. Now that we develope an easy measurement method to be able to determine the correct air porosity. The method consists of two ways by means of measuring cylinder and syringe.

      Both methods have a good sense of sigth and are the effective teaching materials, so that they are able to be applied to an actual teaching load. Particularly, the method using measuring cylinder is very accurate and easy to operate.

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  • Michiko Nakahashi, Masaki Murayama, Lu Di
    1995 Volume 39 Issue 1 Pages 51-56
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      Air permeability is one of the important characters of textiles and clothing materials in considering comfortability of clothing. Many simple measurement methods of air permeability have been reported, but each has it's own problem. Now we have developed a simple measurement method to be able to determine easily the correct values.

      With this method, the air permeability is determined by the use of volume of effluent air in a baloon.

      It is very accurate and good visual method with easy operation. Moreover, it is effective teaching materials and possible to use in the actual teaching.

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  • Noriko Ito, Yuriko Yagi, Akemi Kikkawa, Tomoko Yamada
    1995 Volume 39 Issue 1 Pages 57-66
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      The compressive properties of the arms were studied in healthy nomal subjects (20 males and 20 females). The used compactor was a circular surface 3cm2 in area, and the maximum of the compressive force was 100gf/cm2. The experiment was carried out at rest and tonus, and the compressive properties of the arms were measured at 12 points, which were the medials and lateral sides of bilateral upper arms, forearms and wrists. The compressive stress-strain curves of these points were compared.

      The compressive-recovery curves of the arms showed hysteretic mechanical properties. The arms at rest were more compressible than those at tonus ; and the medial sides were more compressible than the lateral ones. The compressibility was high in order of the wrists, forearms and upper arms, and there was no difference between compressivilities of the female arms and male arms.

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  • Eiko Abe, Yasushi Omura
    1995 Volume 39 Issue 1 Pages 67-75
    Published: 1995
    Released on J-STAGE: August 09, 2023
    JOURNAL FREE ACCESS

      Being made model experiments of yunoshi process in shrinking for Kimono, residual tensile strain and bending rigidity of silk crape clothes when stretched in warp and filling direction of clothes shrunk at their maximum by pre-washing (huriarai) under steaming were discussed.

      1) It's sufficient to set in shape of residual tensile strain of clothes due to loading by steaming at 98℃ for 60sec.

      2) Residual tensile strain of clothes due to loading in filling direction is larger than that of warp direction, in case of filling creping clothes. Here, in former tensile loading, the width of clothes in perpendicular to loading direction (warp) becomes shorter, but in latter tensile loading, the width of clothes in perpendicular to loading direction (filling) becomes longer a little.

      And in case of Habutae, it does not almost generate residual tensile strain due to loading.

      3) Changes of density, thickness and weight of clothes due to tensile load under steaming depend on residual tensile strain mentioned in above 2). Above all, as residual tensile strain due to loading when steaming in filling direction is large, these three properties of clothes in warp direction decrease to a high degree. Accordingly, variations of properties for clothes due to yunoshi treatment look forward to the degree of tensile extension in filling direction of clothes when steaming.

      4) With still more increase of tensile load in steaming, bending rigidity of clothes grows larger. This is caused by next ① and ② come about when loading to clothes under steaming, ① the contact area both warp and filling yarns of clothes become langer, and ② the hardening of the very filling and warp yarns of clothes.

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