功能特点 1、干燥这是一种物理干燥很快的油墨。20℃温度条件下20-30分钟可干燥。若为了适于加印，可采用在50℃的隧道式干燥机中干燥30-60秒。上述干燥时间还因墨膜厚度、是否添加硬化剂及硬化剂的类型、干燥条件和所采用的辅助剂而异。 注意：若是加印，或采用了硬化剂，油墨的干燥速度会减慢。 2、耐褪色性PY系列油墨含有耐风蚀性强的连接剂，这种连接剂中有耐褪色性强的颜料。但020，026，032，064和067除外。 3、抗压性在适当完全干燥之后，墨膜呈很好的附着性、耐刮耐磨性和抗粘着性，还对油质、油脂、稀释酸和底料、酒精有抗性。对于表面稳定性、附着性和耐化学性要求较高的情况，我们建议在PY油墨中添加10%的硬化剂PUH、PEMH或HT1。硬化剂HT1是一种热反应性异氰酸盐硬化剂，须在150℃的烘炉中烘烤30分钟。 技术参数 玛莱宝配色系统中包括21种基本颜色和遮光白料 Feature Drying Physically fast drying, dries at 20℃within 20 to 30 min.(for overprintability), at 50℃in a tunnel dryer within 30-60sec.The times mentioned vary according to thickness of the ink film, with or without addition of hardener and type of hardener, drying conditions and auxiliaries used. Please note that the drying speed slows down i shades are overprinted and a hardener has been used. Stress resistance After proper and thorough drying, the ink film exhibits outstanding adhesion as well as rub and scratch resistance and is resistant to oils, greases, diluted acids and bases, and alcohol. Parameter Marapol PY is mainly used to print onto packaging containers of PE or PP and onto rigid PVC-types. When printing onto PE and PP, the surface of the substrate must be pre-treated in the usual way, either by flaming or by Corona discharge. According to our experience, the PY adheres on polyolefines with a minimum surface tension of 42-48mN/m.PY can also be processed with a spray gun, but preliminary trials are necessary for this process. We recommend to filter the thinned press-ready ink(25μm screen)before processing it, as otherwise there could be bubbles in the ink film. 
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