COLOR DEVELOPER MICROCAPSULE AND PRESSURE-SENSITIVE COPY PAPER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a color developer microcapsule which has an excellent color developing property (finally reaching greatest color developing performance) and further has a color development rising property (color developing performance immediately after pressurization) and to provide a pressure-sensitive copy paper using the color developer microcapsule.

SOLUTION: The color developer microcapsule encapsulating a dye in hydrophobic liquid containing mixed propylene carbonate and 1-phenyl-1-xylyl ethane is provided. The pressure-sensitive copy paper using the color developer microcapsule is also provided. Especially when a ratio of an electron-donating colorless dye to 100 weight% of the hydrophobic liquid is 7 to 20 weight% and content of the propylene carbonate is 5 to 30 weight%, excellent effect can be developed.

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