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Volume 32 (1997 - 199･･･
- Issue 4 Pages 337-
- Issue 3 Pages 233-
- Issue 2 Pages 117-
- Issue 1 Pages 3-
Volume 32, Issue 4
Displaying 1-6 of 6 articles from this issue
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Shuji Suzuki1998 Volume 32 Issue 4 Pages 337-344
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSRecently many fragrance facilities (e.g. museums, art museums, herb gardens, and botanical aroma gardens etc.) are made in many places, and they are brought into conversation. Many people get to consider that fragrance is useful for advancing, activating, and improving the image of the region. In June 1996 our company started the new venture about the fragrance facilities in the Aoyama Heights in Mie Prefecture. We made many trials and errors until its opening, because it was a new attempt for us. This paper writes the information about our new attempt, several fragrance facilities in the regions, and the application of fragrances in the resort from many aspects.View full abstractDownload PDF (1681K) -
Momoko Shimizu, Hitoshi Hosokawa, Toshiyuki Suzuki1998 Volume 32 Issue 4 Pages 353-360
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSFor the purpose of measuring the pearlescence, basic optical theory was applied to develop a new evaluation procedure which can separate the pearlescent pigments's original interference light from the sample's surface gloss. The measurement is based on the Frenel's equation, which represents the disappearance of the P-polarized component of the surface reflection light under the Brewster angle incident condition. Therefore, by measuring the reflection of the P-polarized and S-polarized light respectively, it becomes possible to obtain information of the reflection light of pearlescent pigments, separately from the surface gloss and the object color. This method was found to be extremely useful for films, lipstick's appearance, or any other object containing pearlescent pigments. Moreover, the results of this evaluation show that the pealescence is influenced by the particle sizes of pearlescent pigments, the optical properties of coexisting colorants, and the surface smoothness of the sample.View full abstractDownload PDF (2268K) -
Estimating the Relative Depth of Melanin Pigment in the SkinOsamu Kaneko, Yukiko Kawaguchi1998 Volume 32 Issue 4 Pages 361-371
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSInformation about the relative depth of melanin pigment in the skin is very important when estimating the ability of cosmetics to improve pigmentation. Melanin at different depths from the skin surface produces different images in ultraviolet and infrared photos. Based on this knowledge, a method is developed together with an instrument for estimating the relative depth of melanin using a series of multispectral images obtained at different wavelengths. The present work proposes a method for quantifying, classifying, and displaying pigment density.View full abstractDownload PDF (3144K) -
Shinryo Yabe, Shigeyoshi Momose1998 Volume 32 Issue 4 Pages 372-378
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSNew UV-blocking particles consisting of cerium dioxide (CeO2) and amorphous silica (SiO2) were synthesized. When they were incorporated into various cosmetic formulations, these particles showed unique light-scattering/absorbing properties while appearing transparent on the skin. By coating the particles with amorphous SiO2, we were successful in overcoming the high catalytic activity of CeO2. These particles were prepared in an aqueous dispersion system, and after the formation of cerium hydroxide and complexing of sodium silicate, the particles were dried. The shape of these particles is a needle-shape with an average size of about 50nm on the major axis and about 6nm on the minor axis. The optical absorbance of these particles began at 410nm with maximum absorbance at 297nm and they showed much higher transparency in the visible ray region than an equivalent micronized titanium dioxide (TiO2) particle. An inclusion of 20% of these particles in lipstick formulations caused much less color change than a 4% inclusion of micronized TiO2. These new particles can solve the problems encountered in cosmetics by providing high SPF values while maintaining a natural appearance.View full abstractDownload PDF (1349K) -
Kenichi Kakino, Shinji Tsusaki, Katsuyuki Tanaka, Toshimitsu Hattori, ...1998 Volume 32 Issue 4 Pages 379-385
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSOxygen-17 nuclear magnetic resonance spectra of “cluster-water, ” prepared by Hattori's method, and of commercially purified water were measured. It was found that the half-height widths of the 17O-signals for “cluster-water” and commercial water are 56.3 and 142.4Hz, respectively. The result implies that the average size of clusters in “cluster-water” is smaller than that in commercial water. The degree of dispersion for colloidal samples of triolein, oleic acid and monoolein dispersed in “cluster-water” and in purified water was investigated by proton nuclear magnetic resonance. The degree of dispersion of the samples dispersed in “cluster-water, ” was found to be greater than that for the samples dispersed in commercial water. Thus, it was assumed that the average size of water-clusters and the difference in dynamic structure between the water samples affect the degree of dispersion of oils and fats in water.View full abstractDownload PDF (1083K) -
[in Japanese]1998 Volume 32 Issue 4 Pages 387-390
Published: December 20, 1998
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDownload PDF (1996K)
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