Ink composition for writing board

Details Ink composition for writing board Ink composition for writing board

C - Chemistry, Metallurgy

09

D

400/7028, 400/90

C09D 11/16 (2006.01)

Patent

CA 1300295

INK COMPOSITION FOR WRITING BOARD ABSTRACT OF THE DISCLOSURE Disclosed is a wipe-erasable ink composition for a writing board, which has good erasability and long-period stability. This ink composition comprises a colored polymer formed by dyeing an organic solvent-soluble resin having a sulfonic acid group or a salt thereof with a basic dye, a volatile organic solvent and, as additives, (A) a nonionic surface active agent having an HLB value of 8 to 14 and/or a cationic organic compound, and (B) a slightly volatile or nonvolatile organic compound.

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