| 摘要 |
PURPOSE:To efficiently remove an oil or fat, an adhesive for temporary fixing, and, esp., a pitch. CONSTITUTION:Cleaning is carried out by using a cleaning composition which is prepd. by mixing at least one glycol ether ester selected from the group consisting of a propylene glycol alkyl ether acetate, a dipropylene glycol alkyl ether acetate, an ethylene glycol alkyl ether acetate, a diethylene glycol alkyl ether acetate, and 3-methyl-3-methoxy-1-butyl acetate with at least one cyclic terpene selected from the group consisting of dihydroterpineol, p-menthane, alpha-pinene, p-cymene, d-limonene, cineol, and terpineol in a wt. ratio of the ester to the terpene of (8:2) to (2:8). |
