JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES

[title in Japanese]

[in Japanese]

1993 Volume 34 Issue 1 Pages 4-9
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.4

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[title in Japanese]

[in Japanese]

1993 Volume 34 Issue 1 Pages 10-17
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.10

JOURNAL FREE ACCESS

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[title in Japanese]

[in Japanese], [in Japanese]

1993 Volume 34 Issue 1 Pages 18-23
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.18

JOURNAL FREE ACCESS

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

1993 Volume 34 Issue 1 Pages 24-26
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.24

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A proposed method to classify goods by ‘perceived fashion risk’; On the case of items for dress and personal adornment used by women

Susumu Kouyama, Hisae Namura, Osamu Takagi

1993 Volume 34 Issue 1 Pages 29-40
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.29

JOURNAL FREE ACCESS

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The purpose of this investigation was to examine the difference of‘perceived fashion risk’in various kinds of goods for dress and personal adornment used by women, and also to classify them by‘perceived fashion risk’.
Three hundreds and sixty female undergraduates served as subjects. They were separated into three groups for rating and asked to rate fifteen fashion risk concerns on a five-point scale about each item. The number of items was one hundred in the total of the three groups.
Major findings obtained were as follows:
1) The same five anxieties were extracted as the structure of‘perceived fashion risk’from each of the three groups.
2) Items for dress and personal adornment for which risk was perceived strongly were revealed to each of the five anxieties. In particular, coat and upper garment, some items for personal effects, Japanese clothes for ceremony or going out, and lower garment extending to the knees, etc, were risky with regard to total anxiety summed by five anxieties.
3) It was possible to cluster the one hundred items for dress and personal adornment in terms of the perceived fashion risk. Those were as follows: “Anxiety about Quality/Performance”Group, “Anxiety about Deviating from Norms”Group, “Anxiety about Becomingness/Ability to Use Well”Group, “Anxiety about Fashionability”Group, and“Anxiety about Self-Expression”Group.

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Studies on the Oxidation of Dyes.

Part I : The Identification of Oxidation Products of Naphthol Dyes with Sodium Hypochlorite and Oxidation Mechanism

Kazuyoshi Seguchi, Sachiko Nakano, Satoko Tanaka

1993 Volume 34 Issue 1 Pages 41-48
Published: January 25, 1993
Released on J-STAGE: September 30, 2010

DOIhttps://doi.org/10.11419/senshoshi1960.34.41

JOURNAL FREE ACCESS

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Four naphthol dyes synthesized by diazotization and coupling reactions: aniline→2-naphthol, aniline-naphthol AS-BO, aniline-naphthol AS, and 4-nitroaniline→2-naphthol were treated with sodium hypochlorite at room temperature under variouspH's in a two-phase solvent system of dichloromethane and water. The oxidation products extracted from dichloromethane layer were analyzed by H PLC and GC. The structure of these products was mainly determined by the use of Gas Chromatography/Mass Spectroscopy (GC-MS), NMR, and IR.
The results were summarized as follows:
1. Decomposition under acid conditions readily takes place, whereas under alkaline solutions the dyes are more stable.
2. Oxidation in hypochlorite solutions causes the breakage of the azo group in the dyes to afford many decomposition products; these were assigned by means of the mass and NMR spectroscopies. For examples, nine compounds for aniline-2-naphthol and five compounds for 4-nitroaniline-2-naphthol were identified. Of particular interest was the identification of chloro-substituted phenols and naphthols in the decomposition products. Such decomposition products might cause dermatological problems, if they accumulate in the fabrics worn next to the skin.
3. Judging from the oxidation products identified, the decomposition mechanism is expected that under the relatively acidic bleaching conditions, the electrophilic chlorination reactions toward benzene or naphthalene rings take place as well as chloro-dediazotization. By the prolonged oxidation, further chlorination of these products takes place generating a large number of products.

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