| 摘要 |
PURPOSE:To obtain a treating liquid for making offset master hydrophilic, having a high preventiveness to ground staining, a high treating capacity, and excellent storage stability, using a hexacyano ferrate, an alkali metal or ammonium salt of phosphoric acid, and gluconic acid or its metal salt. CONSTITUTION:An objective treating liquid is obtained by mixing 5-50g/l (preferably) of a hexacyano ferrate (e.g., sodium ferrocyanate, etc.), 10-250g/l (preferably) of an alkali metal salt (e.g., sodium dihydrogen phosphate) or ammonium salt of phosphoric acid, and 0.2-50g/l (preferably) of gluconic acid or its metal salt (e.g., sodium gluconate, etc). |
