Preparation of Monodispersed Cu-Phtalocyanine Blue Pigment by PVD Method

概要

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The preparation of monodispersed Phthalocyanine Blue pigment by means of PVD method that coat the Cu-Phthalocyanine Blue pigment having sublimation nature on the surface of spheric poly-styrene particles was examined. The L-value in Lab indicate system was influenced by flow amounts of nitrogen gas and pressure inside of PVD reactor. Achieving the PVD at the flow amount of relatively small amount, for example, under 10 ml/min, relatively high pressure, for example, 2 Torr to 2.5 Torr, was advisable as treating pressure, and at the flow amount of relatively large amount, for example, around 20 ml/min, relatively low pressure, for example, in the neighbourhood of 1.5 Torr, was advisable as treating pressure. From the observation result of SEM, it is considered that the vapor of Phthalocyanine Blue forms it's crystal becoming incorporated onto properly melted polymer surface by the heat emitted from the heater for sublimation.
Japan Society of Colour Materialの論文