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Volume 21 (1987 - 198･･･
- Issue 3 Pages 198-
- Issue 2 Pages 98-
- Issue 1 Pages 5-
Volume 21, Issue 1
Displaying 1-7 of 7 articles from this issue
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Keiji Kadono, Yoshizoh Kitagawa, Takayuki Kohno1987 Volume 21 Issue 1 Pages 5-15
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA New method for analyzing ionic and nonionic surfactants present in shampoos and hair-conditioners is proposed; a combination of the ordinary photometry with differential refractometry as the detector of reversed-phase high-performance liquid chromatography (HPLC). A ratio of the area intensity of the UV absorption to that given by differetial refarctometry (UV/RI ratio) was found to be specific to each surfactant. When the UV/RI ratios were plotted against the retention-time (Rt) for various authentic surfactants, location of a spot in the UV/RI-vs-Rt map was specific to each surfactant and there was no overlapping between spots even for two similar surfactants which are usually overlapped in the UV-vs-Rt map. Accordingly, the UV/RI-vs-Rt map obtained for an arbitrary mixture of surfactants allowed more accurate analysis of surfactants than the ordinary method based solely on the retention time. In fact, when model shampoos and hair-conditioners using anionic, cationic, amphoteric and nonionic surfactants were analyzed with methanol-water as a mobile phase on the ODS column, the analytical values from the present method were quantitatively successful.View full abstractDownload PDF (1272K) -
Yuka Hirai, Masashi Fujii, Shinji Sakaguchi, Junko Tano, Koji Yanagiha ...1987 Volume 21 Issue 1 Pages 16-23
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSIt is very interesting to classify skin types, but women's skin types depend on the seasonal changes, envioroment, their health conditions. And their skin types are not always same for all seasons. Accordingly, we investigated the dynamic skin conditins that changed due to several parameters with multivarate analyses.
We measured pH, water content, sebum, temperature of the skin's surface, morphology by the replica method about four hundred women and analyzed them. As a result, we found three components capable of explaining the skin condition- “Sexual type factor”, “Moisturizing factor”, “Texture of skin surface factor” and especially best skin condition needs a moderate valance both of the first and second components.
In addition, we determined a multiple regression analytical equation from the above skin parameters in relation to the ageing. We can explain 60% (R=0.616) rate about panel's age with this equation. And the residual of this equation tends to become larger with age.View full abstractDownload PDF (1227K) -
Yoshio Kitada, Makoto Fukushima, Tomonori Matsumoto1987 Volume 21 Issue 1 Pages 24-29
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe six kinds of crude drugs frequently used in the Kihada-prescriptions in Chinese medicine were studied mainly about its moisturizing effect. It was recognized that the three crude drugs, Toki (Angelicae Radix), Shakuyaku (Peaoniae Radix), and Byakushi (Angelicae Dahuricae Radix) had maintenance of a constant moisturizing effect, while Senkyu (Cnidii Rhizoma), Jio (Rehmanniae Radix), and Kanzo (Glycyrrhizae Radix) had few. Among them, especially Toki had desirable moisturizing effect that improved water holding capacity, and inhibit the water desorption from epidermis even under a circumstance of low humidity.
As a consequent of this examination and our investigation that most of the Kihada-prescriptions contains one of these three drugs, Toki, Syakuyaku, and Byakushi, it was confirmed that the effectiveness of the Kihada-prescriptions was partly ascribed to the moisturizing effect and wound healing.View full abstractDownload PDF (796K) -
Hideki Yamada, Kimihiro Harada, Shuichi Nakamura, Satoru Mihara1987 Volume 21 Issue 1 Pages 30-35
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA combined GC/MS search system using retention indices and mass spectra has been developed. Test searches for γ-decalactone, volatiles of Jasmin absolute and men's cologne have been carried out using the search file created for about 2, 500 compounds.
After separation of the volatiles in men's cologne by GC/MS, both retention indices and mass spectra were fed into a forward spectral search computer program. The identifications were made of the 50 compounds out of 56 peaks on Carbowax 20M column. On the other hand, tentative identifications were made of the 38 compounds using a conventional mass spectral-search. The characteristic of the present system lies in the high search performance by combining retention indices and mass spectra.View full abstractDownload PDF (641K) -
Masanobu Tatsuda, Masaaki Uemura, Kenji Torii, Masahiro Matsuoka1987 Volume 21 Issue 1 Pages 43-49
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe effects of ultraviolet and sunlight radiation on the decolorization and damage of human black hair were studied.
Effects of ultraviolet light were studied by exposing hair samples to a carbon-arc lamp, while the solar effects were examined by exposing hair samples to natural daylight.
Hair damage was evaluated from the ratio of the force at 20% elongation of untreated hair fibers and treated ones. The change of the color was evaluated by measuring the hue value of hair strands. It was also evaluated from the reflectance of hair fibers when scanned at 500nm by a chromatoscanner.
Exposing black hair fibers immersed in deionized water to ultraviolet or sunlight lowered their tensile properties and fading was also observed. The same phenomena were confirmed in case of sea water too. In dry condition, exposing black hair fibers to ultraviolet or sunlight did not change their color and tensile properties. Furthermore, we found out that as the pH values of immersing solution increased, the ultraviolet light irradiated hairs became less tensile, and fading was also accelerated.View full abstractDownload PDF (934K) -
Noriko Akimoto, Masatoshi Yamamoto, Shiro Sato, Toshio Masui1987 Volume 21 Issue 1 Pages 50-54
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA rapid simple method was developed for the determination of propylene glycol (PG) and 1, 3-butylene glycol (1, 3-BG) in cosmetics including lotions, milk lotions, creams, cleansing foams and packs. The procedure is as follows: 1, 2-butylene glycol (1, 2-BG) (0.5w/v% ethanol solution) was added to samples as internal standard and it was mixed enoughly on ultrasonic bath. After the mixture was evaporated to dryness, the residue was extracted with methanol. Finally the extract obtained was analyzed by gas chromatography on 20% PEG-20M column. Three well separated sharp peaks, which correspond to PG, 1, 3-BG and 1, 2-BG respectively, were detected within 10min, Average recoveries of both PG and 1, 3-BG were greater than 97.8% and coefficients of variation were less than 2.1%. It was found that the proposed method was applicable to the quantitative determination of PG and 1, 3-BG in commercial cosmetics.View full abstractDownload PDF (585K) -
[in Japanese]1987 Volume 21 Issue 1 Pages 55-57
Published: July 31, 1987
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDownload PDF (389K)
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