METHOD FOR DESIGNING PEARL PIGMENT AND MAKEUP COSMETIC
PROBLEM TO BE SOLVED: To determine constitution and a film thickness when a pearl pigment of a desired color is designed without depending on trial and error or experiences of a craftsman. SOLUTION: The pearl pigment is designed by selecting a composite refractive index, a thickness and a desired re...
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| creator | SHIOMI HIROYUKI MISAKI EIICHIRO |
| description | PROBLEM TO BE SOLVED: To determine constitution and a film thickness when a pearl pigment of a desired color is designed without depending on trial and error or experiences of a craftsman. SOLUTION: The pearl pigment is designed by selecting a composite refractive index, a thickness and a desired reflected light wavelength of flaky powder, applying the selected items, determining a multi-layered film reflectance R of the pearl pigment and determining the film thickness of each coating layer so that the multi-layered film reflectance R is the maximum or minimum at a desired wavelength. Thereby, the pearl pigment is designed so that the value of the determined film thickness is obtained. Furthermore, the average reflectance F in consideration of the thickness distribution of the flaky powder is determined and utilized in place of the multi-layered film reflectance R. Otherwise, the Torrance-Sparrow model is applied to determine coated surface reflectance RC in consideration of the tilt of the pearl pigment for the coated surface when coating a rough surface with the pearl pigment. The resultant coated surface reflectance RC is utilized in place of the multi-layered film reflectance R or the average reflectance F. Thereby, simulation in consideration of the thickness distribution of the flaky powder and coating roughness for the rough surface can be carried out. COPYRIGHT: (C)2008,JPO&INPIT |
| format | Patent |
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SOLUTION: The pearl pigment is designed by selecting a composite refractive index, a thickness and a desired reflected light wavelength of flaky powder, applying the selected items, determining a multi-layered film reflectance R of the pearl pigment and determining the film thickness of each coating layer so that the multi-layered film reflectance R is the maximum or minimum at a desired wavelength. Thereby, the pearl pigment is designed so that the value of the determined film thickness is obtained. Furthermore, the average reflectance F in consideration of the thickness distribution of the flaky powder is determined and utilized in place of the multi-layered film reflectance R. Otherwise, the Torrance-Sparrow model is applied to determine coated surface reflectance RC in consideration of the tilt of the pearl pigment for the coated surface when coating a rough surface with the pearl pigment. The resultant coated surface reflectance RC is utilized in place of the multi-layered film reflectance R or the average reflectance F. Thereby, simulation in consideration of the thickness distribution of the flaky powder and coating roughness for the rough surface can be carried out. 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SOLUTION: The pearl pigment is designed by selecting a composite refractive index, a thickness and a desired reflected light wavelength of flaky powder, applying the selected items, determining a multi-layered film reflectance R of the pearl pigment and determining the film thickness of each coating layer so that the multi-layered film reflectance R is the maximum or minimum at a desired wavelength. Thereby, the pearl pigment is designed so that the value of the determined film thickness is obtained. Furthermore, the average reflectance F in consideration of the thickness distribution of the flaky powder is determined and utilized in place of the multi-layered film reflectance R. Otherwise, the Torrance-Sparrow model is applied to determine coated surface reflectance RC in consideration of the tilt of the pearl pigment for the coated surface when coating a rough surface with the pearl pigment. The resultant coated surface reflectance RC is utilized in place of the multi-layered film reflectance R or the average reflectance F. Thereby, simulation in consideration of the thickness distribution of the flaky powder and coating roughness for the rough surface can be carried out. 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SOLUTION: The pearl pigment is designed by selecting a composite refractive index, a thickness and a desired reflected light wavelength of flaky powder, applying the selected items, determining a multi-layered film reflectance R of the pearl pigment and determining the film thickness of each coating layer so that the multi-layered film reflectance R is the maximum or minimum at a desired wavelength. Thereby, the pearl pigment is designed so that the value of the determined film thickness is obtained. Furthermore, the average reflectance F in consideration of the thickness distribution of the flaky powder is determined and utilized in place of the multi-layered film reflectance R. Otherwise, the Torrance-Sparrow model is applied to determine coated surface reflectance RC in consideration of the tilt of the pearl pigment for the coated surface when coating a rough surface with the pearl pigment. The resultant coated surface reflectance RC is utilized in place of the multi-layered film reflectance R or the average reflectance F. Thereby, simulation in consideration of the thickness distribution of the flaky powder and coating roughness for the rough surface can be carried out. COPYRIGHT: (C)2008,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY DYES HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES PREPARATION OF CARBON BLACK PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES |
| title | METHOD FOR DESIGNING PEARL PIGMENT AND MAKEUP COSMETIC |
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