| 摘要 |
PURPOSE:To obtain a stain-proofing agent capable of preventing adhesion of a powdery paper or pitch in a remarkably small amount and improving the quality of paper and productivity by using it in a paper-making dryer process. CONSTITUTION:This stain-proofing agent is prepared by admixing a fluorine- based surfactant with a mixture emulsion (O/W type) containing a silicone oil emulsion (O/W type, silicone oil 30 to 65wt.%) having <=1000 cst (25 deg.C) viscosity and another silicone oil emulsion (0/W type, silicone oil 20 to 40wt.%) having k100000 cst viscosmty (25 deg.C) or curable in a weight ratio of 9:1 to 5:5 in an amount of 0.01 to 5.0wt.% based on the silicone oils. |
