ETHANOL-BASE INK FOR MARKING PEN

摘要

PURPOSE:To obtain the subject ink not undergoing the deposition of dye, excelling in long-term stability and water resistance and being nontoxic and not malodorous by mixing a specified dye with an ethanol-soluble resin and ethanol. CONSTITUTION:This ink is prepared by mixing desirably 1-20wt.% dye of the formula (wherein R<1> and R<2> are each 1-4C alkyl; and (n) is 1-5) with desirably 1-15wt.%, ethanol-soluble resin (e.g. alkylphenol resin) and desirably 65-98wt.% ethanol.