| 摘要 |
PURPOSE:To remove easily the marks of film edges and to shorten the time necessary for removing work by adding phosphonic acids and a solvent for dissolving or swelling an image part to a removing liq. CONSTITUTION:This removing liq. contains phosphonic acids and a solvent for dissolving or swelling an image part. The solvent is selected among ethers, ketones, lactones, alcohols, and hydrocarbon solvents, and it is contained preferably by 40-75wt% of the total amount of the removing liq. Water is contained preferably by about 1-15wt% of the total amount of the removing liq. so as to increase the activity of the phosphonic acids and to mix and stabilize the components in the removing liq. |
