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Laser marking machine for use on plastics

发布日期:2013/12/8

Plastic is an important packaging materials, plastic products and other trademarks on the bar code and number for identification mark usually printing, adhesive labels , shrink packaging stamping and other external processing methods to generate , or directly through the plastic surface mechanical processing, such as embossing, engraving , punching and other marks are formed . The use of laser marking machine printing marks in the plastic surface is a kind of high-speed machining , plastic products can maintain the inherent properties of the surface , so that text, numbers or icons and plastic products into a unified whole new marking technology . Plastics laser marking machine token generated using a laser beam directly on the plastic surface , including the tag , label , characters, lines, figures , or color , no other processing steps .
    Some plastic because easily absorb energy and easy marking ; while some plastics not absorb the laser , the laser can not generate markup . Absorption of the laser energy is a function of wavelength , and therefore , the laser intensity in the same effect will be different plastic tag different quality . For example, some colored high density polyethylene and polycarbonate when using YAG laser , without adding any additives can be an ideal mark ; while using carbon dioxide laser marking machine , if adding special additives on the Indian poor . Additionally , degradation of plastic , cracks, surface voids , etc., will reduce the quality of the guide mark .