| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain the subject ink capable of eliminating a handwriting formed with a marking pen when cleaning a metal surface with a hydrocarbon-based cleaning solvent without requiring wiping off operations with a thinner, etc., by including a solvent comprising a paraffinic hydrocarbon and/or a naphthenic hydrocarbon, a resin, a dye, etc. SOLUTION: This ink is obtained by including (A) a solvent comprising a paraffinic hydrocarbon and/or a naphthenic hydrocarbon (e.g. n-pentane or i-hexane) in an amount of preferably 50-98% based on the total amount of the ink, (B) a resin soluble in the component A (e.g. a phenol resin) in an amount of preferably 1-20% based on the total amount of the ink and (C) a dye soluble in the component A (e.g. C.I. Solvent Yellow 2) in an amount of preferably 0.5-20% based on the total amount of the ink or a pigment soluble in the component A (e.g. carbon black) in an amount of 1-20% based on the total amount of the ink as essential components. Besides the essential components, a surfactant as a dispersing agent, a dissolution aid or a film quality improving agent in an amount of 0.1-10% based on the total amount of the ink is added thereto.</p> |
