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Volume 35 (2001)
- Issue 4 Pages 289-
- Issue 3 Pages 204-
- Issue 2 Pages 99-
- Issue 1 Pages 1-
Volume 35, Issue 2
Displaying 1-6 of 6 articles from this issue
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Hajime Hotta2001 Volume 35 Issue 2 Pages 99-106
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe body pigments that construct the framework of powder make-up cosmetics like foundation play a very important role for designing the characteristic of the product. The goodness of the characteristic for use and use feelings, e.g. attaching to smoother on the skin, good adhesion properties, and a moist feeling is a basic and important element for the pleasantness of the powder make-up cosmetics. The characteristic obtained to the body pigments greatly exerts the influence on use and use feelings. The malleability, the ductility, and the adhesion properties that are the main factor for use are greatly according to the bulk characteristic of powder bed. As for powder, the shape, the size, and the character are different as an individual particle. On the other hand the malleability, the adhesion, the ductility, and the filling, etc. are shown as powder bed to which particles gathered. The use of the powder make-up cosmetics was caught from the point of the powder characteristic. Therefore it was an appearing case according to the combination of powder that the size and shape are different as for the peculiar use and function. At first the flowability and the friction characteristic of the inorganic boards powder/spherical fine powder composite systems were introduced. And next the adhesion and the optical function of the mono-dispersed fine powder/spherical powder composite systems were introduced including the evaluation technique.View full abstractDownload PDF (2415K) -
Noriko Kanei, Hironobu Kunieda2001 Volume 35 Issue 2 Pages 107-119
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSEmulsion type is highly related to the phase behavior of surfactant in water and oil. When surfactant forms an aqueous micelle, O/W emulsion is formed. In case that surfactant forms a reverse micelle, W/O emulsion is produced. The O/W emulsion changes to W/O emulsion at HLB temperature or PIT in a water/polyoxyethylene nonionic surfactant/oil system at which the surfactant-layer curvature is zero and a bicontinuous microemulsion coexists with excess water and oil. The effect of type of added oil on the HLB temperature is highly related to the oil influence on the surfactant-layer curvature. We discuss about the penetration or swelling effect of oil or perfume on the surfactant-layer curvature when oil is solubilized in the surfactant aggregates. The correlation between the HLB temperature and the oil effect on the surfactant-layer curvature is also described. When hydrocarbon oil, especially, high-molecular-weight oil is used, the surfactant-layer curvature changes to be more positive. Hence, in the presence of the oil, a discontinuous micellar cubic phase is produced. When excess oil is dispersed in the cubic phase, a highly viscous and gel-like cubic-phase-based emulsion is produced.View full abstractDownload PDF (2344K) -
Tomohiro Yokota, Tsuyoshi Ikemoto, Minoru Sasaki, Toshio Horikoshi2001 Volume 35 Issue 2 Pages 120-126
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSTyrosinase is well-known as a key enzyme responsible for the production of melanin in melanocytes. It is also known that inflammatory reactions such as active oxygen species and melanogenic factors in the skin are induced by UV irradiation. The keys to suppress melanin synthesis are considered to be not only the inhibition of tyrosinase activity but also that of inflammatory reactions. Raspberry ketone glucoside (RKG) in raspberry fruit (Rubus ideaeus) had the inhibitory effect on the melanin synthesis. As a result of an investigation with the glycosides that have similar structure of RKG at its glycoside moieties and alkyl chain, the structure of RKG was found to be suitable as an inhibitory factor on melanogenesis. RKG released raspberry ketone (RK) gradually after the reaction with both homogenated and desquamated cells of the stratum corneum. In addition to the inhibitory effect of melanin synthesis, RK also showed remarkable functions such as the scavenge of nitric oxide (NO) which was considered to induce pigmentation of human skin through activation of melanogenesis and the inhibition of the inflammation-related reactions such as production of superoxide anion and lipid peroxide. These data indicated that RKG had lasting effects for the inhibition of melanogenesis and various melanogenic factors after the degradation in the skin.View full abstractDownload PDF (1951K) -
Sakura Inoue, Norihiro Araki, Satoshi Kimura2001 Volume 35 Issue 2 Pages 127-132
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSIn this study, we investigated the effects of odors on creation of new ideas by utilizing the Alternate Uses Test. The subjects were asked to write down as many possible uses of empty tin cans as they could conceive in 20min. The purpose was to evaluate the subject's ability to think of new and unconventional ways to use the empty cans. Twelve minutes into the experiment, three test groups were exposed to one of three essential oil odors: rosemary, peppermint or orange. For the control group, odor-free air was introduced. The ideas devised by the subjects were classified into two categories according to the standard TCT test method. “T-type” represents ideas having higher similarity to the original usage of the can. “H-type” represents ideas having lower similarity and higher originality. The effect of odors on idea creation was evaluated by the difference in the number of ideas presented before and after the odor introduction. The test scores of the three test groups were statistically compared with that of the control group. The results demonstrated no differences in the number of “T-type” ideas. On the other hand, subjects exposed to rosemary or peppermint, but not to orange, showed a significantly increased number of “H-type” ideas. This suggests that rosemary and peppermint have some effect on the creation of original ideas. Furthermore, rosemary and peppermint seemed to have greater effect on subjects who had scored low in creative aptitude.View full abstractDownload PDF (720K) -
Takafumi Nishijima, Hiroyuki Ohsu, Takashi Kitahara, Yoshinori Takema2001 Volume 35 Issue 2 Pages 141-148
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe morphological changes of facial skin surface with aging were investigated with special reference to an alteration of the pore. Replica of the skin at upper cheek, middle cheek, lower cheek and chin were obtained from a total of 98 Japanese females ranging in age 18 to 78 years old. The image of replica was classified into two elements, 1) large and hollow pore and 2) skin furrows, and then size and length of which were measured by using image analysis software. Lower cheek and chin showed a continuous increase in mean pore size and number of the pore along with aging. While at upper and middle cheek pore discontinuously augmented mean size having a peak around 40 years old and grew in length with aging. The morphological changes of the pore with aging revealed regional difference in the facial skin. Taken together these results, it was suggested that the age-related structural changes surrounding pore was developed and resulted in an appearance of large and hollow pore, but skin elongation by sagging had possible influence on the morphological changes of the pore at upper and middle cheek.View full abstractDownload PDF (2352K) -
2001 Volume 35 Issue 2 Pages A2-A3
Published: June 20, 2001
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDownload PDF (1222K)
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