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添加剂可扩展激光打标的范围 - China Medical Device Manufacturer
CMDM

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Fri, January 19th, 2018

2005 夏季刊 » 技术新知
添加剂可扩展激光打标的范围

激光打标塑料产品一般需使用添加剂或色素。添加剂能吸收激光并将其转化为热能,使聚合物碳化。这种方式有诸多缺陷,如染色问题,对比度不佳,图像不够清晰等。所标刻的聚合物种类不同,激光系统还需进行仔细调整。据原料供应商DSM (Heerlen, Netherlands; www.dsm.com)商业主管Valerie Reid所说,其公司研发出的一种新技术可以解决上述问题。

DSM生产的Micabs添加剂能去除困扰塑料激光标刻的色修正及图像清晰度的问题。

这种添加剂名为Micabs,可与多种类的聚合物合用,在浅色背景上产生照片级画质的深色图像。“被激光激活的微粒将分散到聚合物基质中去,”Reid解释到,她还指出“Micabs的主要形态是一种用于在铸模机中混合或干混的母料颗粒。”
颗粒被激光激活时,便会吸收能量,从浅色变为深色。该技术的颗粒散布及尺寸控制使其可达到传统技术无法达到的清晰度和灰度。这十分有助于微型部件及医疗试管的打标操作。

由于Micabs无需借助聚合物碳化给塑料标刻印记,便不用依赖于基质。工程塑料,聚烯烃和硅树脂都能轻松地进行标刻。该添加剂也不必进行色修正,而且对原料性质影响甚微。

她还指出,目前使用激光标刻系统的生产商在改用Micabs时无需增加系统成本。而使用传统印刷方法的客户改用此系统则可得到明显的投资回报。


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