| 摘要 |
PURPOSE:To provide the titled ink compsn. which is applied to the surface of formed rubber product and indicates completion of vulcanization, prepared by mixing specified adhesive, polymer and organic solvent with methine dye and/or cyanine dye. CONSTITUTION:The ink compsn. is prepared by mixing (B) an adhesive component selected from among rosin(deriv.), petroleum resin, phenolic resin, xylene resin, alkyd resin, coumarone resin and acrylic, resin (C) a polymer component selected from among cellulose resin, polyvinyl butyral, vinyl chloride/vinyl acetate copolymer, ethylene/vinyl acetate copolymer, polyamide, synthetic rubber and natural rubber and (D) an organic solvent. with (A) methine type dye and/or cyanine type dye (e.g., C.I. Basic Red 12 and C.I. Basic Violet 15). |
