Worldwide, more than 8 million tons of plastic are dumped into the ocean each year. Every minute, more than 1 million plastic bags are used worldwide. The average "working life" of each plastic bag is only 15 minutes, and their degradation takes 1000 years. Due to the inability of plastics to degrade naturally, it has become the number one enemy of mankind and has also led to the tragedy of many animal deaths.
However, in the industrial field, compared with other materials, plastics have the advantages of light weight, excellent chemical stability, excellent electrical insulation properties, wide mechanical strength distribution and high specific strength, making them the most commonly used packaging materials. Used in everyday life.
In addition to the environmental problems caused by the degradation of plastic materials, the marking of plastic packaging also brings about pollution problems that cannot be ignored. Originally, trademarks, bar codes and serial numbers on plastic products are usually processed by printing, labeling, hot stamping and shrink packaging, or mechanical processing directly on the plastic surface. This method is not only inefficient, but also requires the use of consumables. Higher, the degree of pollution during processing is severe.
In 2017, the total output of plastic products in China was 75.155 million tons, up 3.4% year-on-year. With the expansion of the application range of plastic materials, the marking method of materials was also updated, and the traditional ink coding was further upgraded to advanced laser marking equipment.
The laser marking equipment collects huge energy on the plastic products through the laser beam, so as to efficiently mark some logos, graphics, manufacturer information, product parameters and instructions for use on the plastic, which overcomes the high traditional ink jet coding. Several major problems such as pollution, high consumables, high failure, high maintenance and easy elimination have become indispensable processing tools in the plastics market.