Encapsulation of Pigment Indicating Temperature Change as Reversible Color Change
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概要
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It was examined to encapsulate a pigment which indicated temperature change as reversible color change and was suspended in an organic solvent with a polymer. Encapsulation of the pigment with polymer was performed by use of the drying-in solvent method. <BR>It was experimentally investigated how the preparation conditions affected such several properties of capsules as size distribution, mean size, rate of pigment contained in capsule, formation rate. <BR>As a result, an expression correlating mean size with the preparation conditions was derived. <BR>From observation by the microphotograph of capsule, capsules were found to be perfect sphere and the quality of dispersing situation of pigment in base polymer was able to estimate. <BR>Furthermore, durability of reversible color change of capsule was found to be extremely satisfactory.
- Japan Society of Colour Materialの論文