What ink is the food packing bag printed on?
Because of this, benzene soluble chlorinated polypropylene ink has been gradually eliminated, and in Europe and other developed countries have gradually introduced or banned the use of benzene soluble chlorinated polypropylene ink laws and regulations.
1, ink contains toluene, printed products residual solvent value is higher;2, chlorinated polypropylene heat stability is poor, easy to release chlorine, and in the air to form hydrogen chloride (commonly known as hydrochloric acid), making the ink showing a strong acid, the printing roll corrosion;3, benzene soluble ink can also release ozone depleting substances, in the process of production and use, it may produce damage to the production worker body, at the same time in the finished product is easy to residues of harmful substances, so the food packaging bag to cause pollution;
At present, in the food plastic packaging and printing, the most widely used is the benzene soluble chlorinated polypropylene ink series. This series of ink production and application technology have been very mature, is mainly used for the gravure printing in BOPP (BOPP) on printing and printing adaptability is very excellent, good processing performance, faster drying. However, there are still many deficiencies in this method of printing.
