536 JOURNAL OF COSMETIC SCIENCE parameter, tau, which correlates with the three-dimensional combination of NIR-DR spectroscopy and principal structures of dermal collagen fibers, did not change component analysis (PCA) were applied to development of linearly, but showed interesting behavior with age. In an evaluation of hair damage and we found the most addition, no correlation was shown between tau and water suitable wavenumber region (5060-4500 cm-I) for the content of the stratum comeum. These results suggested gradual changes of the matrix components in the dermis with age. However, most of the subjects without obvious skin aging symptoms did not notice such changes in the dermis. We think that the estimation of the degree of UV­ induced skin damage in the early photoaging stage using a variety of non-invasive methods is beneficial for cosmetic evaluation of hair damage. In this study, we developed a new evaluation method that can indicate hair interior and surface damage conditions induced by chemical treatments in a simple, rapid, non-destructive manner based on NIR­ DR spectroscopy by putting a fiber probe on hair. users to notice their skin condition and to find an Continuous Three-Dimensional Examination of Interior appropriate skin care solution. Hair Structure Ken-ichi Tanaka, Yutaka Tango, Koichi Shimmoto A Non-Destructive Method for Assessing Interior and Research & Development Headquarter, KOSE Corporation Surface Hair Damage by Near Infrared Spectroscopy 48-18, Sakae-cho, Kita-ku, Tokyo 114-0005, Japan Yuta Miyamae*, Yumika Yamakawa*, Yukihiro Ozaki** The ability to examine interior hair structure is very POLA Chemical Industries, Inc.*, Department of important in designing effective hair products. But a non­ Chemistry, School of Science and Technology, Kwansei- destructive method for continuous, full-color examination Gakuin University**, *560, Kashio-cho, Totsuka-ku, of the interior hair structure has been lacking. This study Yokohama 244-0812, Japan, **2-1, Gakuen, Sanda 669- proposes a new method that enables non-destructive and 1337,Japan continuous measurement of the interior hair structure with color information. In our method, Optical CT (OCT) is This paper reports a non-destructive method for evaluating used for reconstruction of interior hair structure. Our new hair interior and surface damage based on near-infrared theories enabled us to solve the crucial problem of an OCT (NIR) diffuse reflectance (DR) spectroscopy. It is important system related to a large observational error caused by to know the extent of chemical damage in the interior and internal light scattering, and to make practical application surface proteins of the hair in order to choose an possible. A new OCT system based on our method was appropriate restoration agent or chemical treatment. implemented. This system displayed sufficient accuracy Unfortunately, though there are many simple and non- when the phantom image was measured, and by observing destructive methods for evaluating the hair surface, the human hair, clear and full-color cross-sectional images existing evaluation methods for monitoring chemical were obtained without destruction of the sample. When the changes in the interior proteins are very complicated and bleaching and dyeing processes were continuously destructive. Therefore, we have attempted to develop a new measured, changes in the interior hair with time could be non-destructive method to evaluate the damage to the hair observed. These results clearly indicate that our new interior and surface simultaneously by using NIR-DR method provides a powerful tool in research and product spectroscopy. The key to this study was that the development. Vol. 41, No. 2, 2007 An Introduction of Filling up and Molding Technology In the production plant, efficiency improvement and high such as Powder Foundation and of Some Cases in the quality are called for. In addition, a lot of problems that Factory cannot be predicted in the laboratory occur. This lecture Tatsuya Hasegawa introduces the problems and solutions to the powder Manufacturing Technology R&D Laboratories, POLA Chemical Industries, Inc. 1234, Aino, Hukuroi 437_8765, molding that occur on the production site from the Japan viewpoint of a production system engineer.

536 JOURNAL OF COSMETIC SCIENCE parameter, tau, which correlates with the three-dimensional combination of NIR-DR spectroscopy and principal structures of dermal collagen fibers, did not change component analysis (PCA) were applied to development of linearly, but showed interesting behavior with age. In an evaluation of hair damage and we found the most addition, no correlation was shown between tau and water suitable wavenumber region (5060-4500 cm-I) for the content of the stratum comeum. These results suggested gradual changes of the matrix components in the dermis with age. However, most of the subjects without obvious skin aging symptoms did not notice such changes in the dermis. We think that the estimation of the degree of UV­ induced skin damage in the early photoaging stage using a variety of non-invasive methods is beneficial for cosmetic evaluation of hair damage. In this study, we developed a new evaluation method that can indicate hair interior and surface damage conditions induced by chemical treatments in a simple, rapid, non-destructive manner based on NIR­ DR spectroscopy by putting a fiber probe on hair. users to notice their skin condition and to find an Continuous Three-Dimensional Examination of Interior appropriate skin care solution. Hair Structure Ken-ichi Tanaka, Yutaka Tango, Koichi Shimmoto A Non-Destructive Method for Assessing Interior and Research & Development Headquarter, KOSE Corporation Surface Hair Damage by Near Infrared Spectroscopy 48-18, Sakae-cho, Kita-ku, Tokyo 114-0005, Japan Yuta Miyamae*, Yumika Yamakawa*, Yukihiro Ozaki** The ability to examine interior hair structure is very POLA Chemical Industries, Inc.*, Department of important in designing effective hair products. But a non­ Chemistry, School of Science and Technology, Kwansei- destructive method for continuous, full-color examination Gakuin University**, *560, Kashio-cho, Totsuka-ku, of the interior hair structure has been lacking. This study Yokohama 244-0812, Japan, **2-1, Gakuen, Sanda 669- proposes a new method that enables non-destructive and 1337,Japan continuous measurement of the interior hair structure with color information. In our method, Optical CT (OCT) is This paper reports a non-destructive method for evaluating used for reconstruction of interior hair structure. Our new hair interior and surface damage based on near-infrared theories enabled us to solve the crucial problem of an OCT (NIR) diffuse reflectance (DR) spectroscopy. It is important system related to a large observational error caused by to know the extent of chemical damage in the interior and internal light scattering, and to make practical application surface proteins of the hair in order to choose an possible. A new OCT system based on our method was appropriate restoration agent or chemical treatment. implemented. This system displayed sufficient accuracy Unfortunately, though there are many simple and non- when the phantom image was measured, and by observing destructive methods for evaluating the hair surface, the human hair, clear and full-color cross-sectional images existing evaluation methods for monitoring chemical were obtained without destruction of the sample. When the changes in the interior proteins are very complicated and bleaching and dyeing processes were continuously destructive. Therefore, we have attempted to develop a new measured, changes in the interior hair with time could be non-destructive method to evaluate the damage to the hair observed. These results clearly indicate that our new interior and surface simultaneously by using NIR-DR method provides a powerful tool in research and product spectroscopy. The key to this study was that the development. Vol. 41, No. 2, 2007 An Introduction of Filling up and Molding Technology In the production plant, efficiency improvement and high such as Powder Foundation and of Some Cases in the quality are called for. In addition, a lot of problems that Factory cannot be predicted in the laboratory occur. This lecture Tatsuya Hasegawa introduces the problems and solutions to the powder Manufacturing Technology R&D Laboratories, POLA Chemical Industries, Inc. 1234, Aino, Hukuroi 437_8765, molding that occur on the production site from the Japan viewpoint of a production system engineer.