| 简介 |
PROBLEM TO BE SOLVED : To provide : an oil-based ink composition for writing instruments having good ink temporal stability by suppressing precipitates such as metal salts generated by reaction with ink components; and writing instruments using the same.SOLUTION : An oil-based ink composition for writing instruments comprises at least a colorant, an organic solvent, and a compound of general formula (1), where Rto Rare each an alkyl group or hydrogen group and preferably one of Rto Ris a C1-5 alkyl group.SELECTED DRAWING : None |
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