| 摘要 |
PURPOSE:To obtain the titled retouching liquid that has the satisfactory erasing performance to a toner image with no trace caused by a retouched image at the same time gives no contamination to the area where the image is not erased, by mixing the two types of specific solvents and a diluent at a specified ratio. CONSTITUTION:The 1 type of the 20-40vol% solvent is selected out of the 1st solvent group including toluene, xylene, solvent naphtha, ethyl acetate, methyl Cellosolve acetate, trichlene, dichloroethane, quadrivalent carbon chloride, methyl ethyl ketone, diethyl ketone and methylpropyl ketone. The 11 type of the 20- 40vol% solvent is selected out of the 2nd solvent group including N,N-dimethyl formamide, methyl acetoacetate and ethyl acetoacetate. Furthermore a diluent (such as methyl Cellosolve, butyl alcohol, etc.), which is an organic solvent that does not belong to both the 1st and 2nd solvent groups and at the same time has the compatibility with both the 1st and 2nd solvent groups, is used. |
