Journal of Society of Cosmetic Chemists of Japan
Online ISSN : 1884-4146
Print ISSN : 0387-5253
ISSN-L : 0387-5253
Volume 32, Issue 2
Displaying 1-10 of 10 articles from this issue
  • Tatsuo Yamamura
    1998 Volume 32 Issue 2 Pages 117-123
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    Skin surface conditions are dependent upon the rates of the epidermal proliferation and keratinization. Then, the biochemical parameters influencing the corneocyte turnover rate, as well as the physical parameters of stratum corneum, are important for the evaluation of the skin surface conditions. The morphology of the corneocytes, such as shape, density, nuclear inclusion, area, and multistripping, reflects the rates of epidermal proliferation and keratinization. In addition, the protease activity and the peroxide-scavenging ability of the stratum corneum are related with the corneocyte turnover rate. The skin surface conditions might be classified in detail by the combination of the biochemical properties and the physical properties of the stratum corneum.
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  • Hiromichi Tanaka
    1998 Volume 32 Issue 2 Pages 124-130
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    There are various kinds of airfreshener in the market such as gel, liquid, aerosol, film, seramic etc. by its purpose. This paper reports the feature and defects of each delivery systems briefly and also refers to chemical characteristic, physical characteristic, stability and volatilization system of carrageenan-gel which is requested as a gel-type airfreshener. Then, the gel technology on “SAWADAY” is mentioned which has been reforming since it had introduced to the market; how the note can keeps constantly from the beginning to the end. Especially, the process of gel-type airfreshener progress and the problems it still have are explained concretely.
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  • Fumihiro Okada
    1998 Volume 32 Issue 2 Pages 131-139
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    Microbial tests are indispensable in the research, development and manufacturing of cosmetics in order to ensure the potency and quality of products. However, test methods generally used are complicated and time-consuming in getting judgment because relatively a long culture period is required. This is a very important subject in consideration of efficiency of the research, development and manufacturing.
    In this article the recent advancement of simple and rapid bacterial test methods will be reviewed and their application to the research, development and manufacturing of cosmetics will be discussed with special reference to microbial calorimetric technique.
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  • Yasuyoshi Miyachi, Masako Koyama, Yoshio Aoki
    1998 Volume 32 Issue 2 Pages 140-146
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    Permanent waves of natural hair and a few kinds of artificial hair were evaluated with various methods. Some artificial hair without S-S bonds chemically showed good wave values just after perm treatment by molecular crosslinking with hydrogen bonds. But their wave characters with durability were quite different from those of natural hair.
    We propose a new evaluation method of indicating wave durability quantitatively. And an artificial hair made of Poly (amino acid) with SH groups and amino groups showed similar wave property to natural hair by our new evaluation method.
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  • Mitsuru Shibutani, Taeko Oishi, Shinya Yamamoto, Susumu Hasebe
    1998 Volume 32 Issue 2 Pages 147-152
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    The molecular weight distribution and average molecular weight (Mw) of hyaluronic acid (HA) powders and their injectable preparations were measured by size exclusion chromatography/low-angle laser light scattering (SEC/LALLS). The columns used were TSK gel G6000PWXL (30cm×4) made from cross-linked hydrophilic polymers, and were eluted with 0.2M sodium sulfate at a flow rate of 1.0ml/min. A reasonable relationship between the retention time and the molecular weight of the HA was obtained under these SEC conditions. The degree of depolymerization of HA by heating at 70°C was related to the molecular weight, it was found to be more extreme the higher the original molecular weight. The measured value of Mw was in good agreement with the viscosity average molecular weight in eight kinds of cosmetic grade HA powders. The preparation from an injectable HA preparation was conveniently made by diluting with the mobile phase which was directly injected into the SEC. Among examined eight kinds of cosmetic grade HA powders and four injectable HA preparations, HA from an injection showed the lowest degree of polydispersity. It was revealed that SEC/LALLS was a useful tool for examining the molecular weight distribution of HA and its related medicines.
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  • Taku Hoshino, Eiji Naru, Chiharu Koide, Kumi Arakane
    1998 Volume 32 Issue 2 Pages 153-159
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    The inhibitory effects of Kojic acid and oil-soluble licorice extract on melanogenesis were investigated in vitro by using B 16 murine melanoma cells. Therefore, we found that the inhibitory effects of them were added, as compared with the case used each medicine individually.
    To study details of the results, we examined into effects of them on TRP-2 (Tyrosinase relation protein-2) which was a part of melanogenic regulating enzyme termed Dopachrome tautomerase. Both Kojic acid and oil-soluble licorice extract inhibited TRP-2 activity in a dose dependent manner. Furthermore, at the concentration which they showed almost the same inhibitory rate on melanogenesis, they inhibited TRP-2 activity by 7.7%, 21.2% respectively. These results suggested that the inhibitory effects on TRP-2 activity of oil-soluble licorice extract was higher than that of Kojic acid. In addition, We investigated effects on TRP-2 activity of both medicines which were used together. We found that Kojic acid and oil-soluble licorice extract additionally inhibited TRP-2 activity, as compared with the case used each medicine individually.
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  • Miki Shiraishi, Kenji Kanda, Tatsuya Okumura, Hiroshi Nishiya, Tasuku ...
    1998 Volume 32 Issue 2 Pages 160-169
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    We have developed an automated routine analysis system for cosmetic products, which is designed to obtain information on as many ingredients as possible with a simple pretreatment and through a single analysis. 13C-NMR spectroscopy and liquid chromatography (LC) have been employed for analyses of base ingredients and additives, for each of which an automated retrieval system from a custom-modified database was established with commercially available software by using as retrieval parameters chemical shifts and a combination of retention index (RI) and absorbance ratio at two wavelengths, respectively. The system has been proved to be rapid, simple to operate, and sufficiently accurate for practical purposes.
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  • Kenya Hirayama, Mieko Yamamoto, Kazuhiro Yamazaki, Satoshi Kimura
    1998 Volume 32 Issue 2 Pages 170-177
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    Many key words (image terms) are used in selecting the color of lipstick and evaluating the finishing of lipsticks. It seems that “suitable” is also taken into account along with image evaluation. In this respect, we consider that “suitable” is an important factor and examined whether lipstick colors that “suitable” have certain things in common or not.
    Although many factors affect the color evaluation of lipstick, we carried out experiments to examine the combination of color of the face and lipstick, assuming that the most important factor affecting the color evaluation of lipstick is the relationship between lipstick and face color. We employed computer graphics whereby the application of various lipsticks to a women's face was simulated. The images of this simulation were presented to subjects who were then requested to evaluate them in terms of “suitable.”
    The results of their evaluation were analyzed in terms of color harmony and quantification theory I. As a result, it was found that differences in color between the lipstick and the face color, especially difference in brightness between them, were an important factor in evaluating whether a color of lipstick is suitable or not. This suggests that a color of lipstick is evaluated as suitable according to a certain regularity in color harmony.
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  • Satoru Hashimoto, Koji Kurihara, Fusayo Sato, Masato Tagawa, Yukiyoshi ...
    1998 Volume 32 Issue 2 Pages 178-185
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    This study focused on the development of a new anti oxidant for O/W emulsions containing poly unsaturated lipids (evening primrose oil, kukui nut oil etc.) of cosmetic formulations.
    In this study, we clarified that the anti-oxidant properties of plant extracts having anti-oxidant abilities are closely related to their partition behaviors in o/w emulsions and their anti-oxidant effectiveness are remedied with the addition of lipophilic polyglycerin fattyacid esters providing a carrier effect for the orientation of the anti-oxidants toward the oil/water interface.
    And we concluded that lipophilic polyglycerin fattyacid esters are effective anti-oxidant enhancers for natural anti-oxidants in O/W emulsions.
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  • Masaaki Miyawaki, Tsuyoshi Sakai, Hiroaki Konishi
    1998 Volume 32 Issue 2 Pages 186-189
    Published: June 20, 1998
    Released on J-STAGE: August 06, 2010
    JOURNAL FREE ACCESS
    Heretofore, oxidative stability of lipsticks has been evaluated with sensory test, AOM test and so on. The result of sensory test is depended on the level of panel and AOM test requires a long span of time. Therefore we attempted to evaluate oxidative stability of lipsticks with differential scanning calorimetry (DSC). We compared the break time of lipsticks measured by DSC with the time for resulting the rancid odor in lipsticks in accelerated test. As a result, when break time of lipstick was short, the time for resulting the rancid odor was short. With addition of antioxidants, the break time of and the time for resulting the rancid odor in lipstick become longer than the one without. Therefore we thought the break time measured by DSC could predict oxidative stability of lipsticks in a short span of time.
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