| 摘要 |
PURPOSE:To provide a stain-removing agent effective for stains of oily inks adhered to wears by adding a surfactant and water to a mixture of a specific alkylene glycol derivative or a mixture thereof and dimethylimidazolidinone in a specified wt. ratio. CONSTITUTION:A strain-removing agent comprises (A) an alkylene glycol derivative of formula: R1-(OCnH2n)m-OR [R1, R2 are H 1-5C alkyl, 6C or 7C allyl, 2-4C acyl, but R1, R2 are simultaneously not H; (n) is 2-4; (m) is 1-3] or a mixture thereof, (B) 1,3-dimethyl-2-imidazolidinone in an A:B wt. ratio of 1:(0.1-10), further a surfactant and water. |
