Market pressures continue to challenge the printing industry to deliver products that differentiate and delight. Doctor blade manufacturers have stepped up, introducing plastic blade technology that offers a viable alternative to steel and delivers a competitive edge. Here are some of the reasons that plastic doctor blade materials are 比钢好得多.
安全
钢刀在印刷车间造成的伤害很多。印刷机操作员在处理钢刀时随时都有被割伤的危险，但最危险的莫过于从印刷机上取下钢刀时。刀片的边缘会随着磨损而磨光，留下锋利的刀尖。
相比之下，聚合物材料的特性可防止塑料刀片形成危险的切削刃。即使在磨损的情况下，塑料刀片也不会锋利到足以伤害印刷机操作员。从钢制刀片改用塑料刀片可以减少误工事故，并为印刷商节省大量的工伤赔偿费用、医疗账单、人工更换费用和印刷机停机时间。
性能
While safety is the hallmark of a plastic doctor blade, in the past, printers sometimes had to forego this benefit for the wiping capability of steel. Traditional plastic blades needed thickness to provide rigidity. They were unable to achieve a fine area of contact with the anilox roll in high-graphics applications, and steel blades were the only option.
But now, next-generation polymer materials and innovative tip technology can be combined to provide stiffness at thinner gauges. As a result, today’s plastic blades are able to maintain a fine contact area with the anilox roll and deliver metering performance on par with steel. The lower surface tension of polymers also facilitates an easier transfer of ink or coating to the plate. These properties enable plastic blades to resolve many press issues – such as UV spitting – that are commonly experienced with steel blades.
耐用性
塑料刀片经久耐用 比钢更耐用.这种材料非常坚韧，可以承受高钛白油墨和特效涂料等研磨化学物质的侵蚀。刀片材料还具有自润滑功能，摩擦系数低，可防止机械磨损。使用塑料刀片可以减少更换刀片的频率，这意味着印刷机可以不间断地运行更长时间。
成本效益
塑料材料可保护网纹辊。钢刀安装不正确或压力过大会导致金属碎片脱落，并在辊子转动时破坏网纹辊上的网纹辊。此外，钢刀和网纹辊表面之间的摩擦也会侵蚀网纹辊单元壁。无论哪种情况，网纹辊损坏都会导致印刷缺陷、浪费以及维修或更换辊子的高昂成本。另一方面，塑料刀片材料是非磨损性的。同样，它们也不会对操作人员造成伤害。 绝不会损坏辊子或导致网纹辊过早磨损.
可持续性
最后，但并非最不重要的一点是，使用塑料刮刀可以减少打印机的碳足迹。如今，下一代聚合物刮刀开发商都在努力创造能帮助客户实现可持续发展目标的产品。许多新的聚合方法使用回收的一氧化碳（通常来自炼钢厂！），从而避免了向大气中排放二氧化碳。塑料生产过程的能耗比钢铁低得多，排放的温室气体也较少，原材料和成品的运输量也较小。
Early doctor blade chamber systems were designed for use with steel blades. But, to address the increasing demand for plastic doctor blades, chamber manufacturers, like TRESU, have introduced new blade holder systems that fit a range of blade thicknesses. With an interchangeable clamp apparatus, press operators have the flexibility to run plastic or steel or easily switch back and forth depending on their job requirements.
印刷商正在寻求创新，以简化他们的流程并跟上市场需求的步伐，他们在塑料刮刀片中找到了解决方案。聚合物刮刀材料具有耐用性和可持续性，其性能超过钢材，同时还能保持其最初的优点：安全。随着市场不断认识到塑料的优势，行业供应商无疑将继续开发产品，使其成为每个印刷车间的选择。
