In recent years, plastic products, one of the three major printing materials, especially expanded polystyrene, have become a red pollution of people's evil. The disposal of these polystyrene foam packaging has caused serious pollution to the environment. The earth's atmospheric ozone layer; the destruction of geological structures caused by the inability to corrode. These foam plastic wastes have caused great damage to the global environment. This article will introduce you to the grave-born long-lived printing materials.
An antimicrobial printed material that has the function of reducing and inhibiting microorganisms in the food package such that it can stop growing or inactivating. We generally classify such printed materials into movable, regenerated, adsorbed, and immovable. At the same time, it will not have any impact on the quality of the food.
The surface of the printing material is treated with an antistatic agent or subjected to a deep composite treatment to reduce the electrical resistance of the original material and improve the electrical conductivity, thereby achieving the purpose of eliminating static electricity. In general, the antistatic agent has a simple process, low cost, convenient production, and no special requirements on equipment, and thus occupies a certain position in actual production. This is the mainstream of the current popular, and is also the development direction of anti-static bags in the future.
Glass is a melt of silicate, metal oxide, etc. It is an inert material and is non-toxic and harmless. However, melamine-poor glass products may have problems with the dissolution of toxic substances from glass raw materials. Therefore, the glass products should be treated with water soaking or heat treatment with dilute acid. Food and medicine with strict requirements for packaging can be changed to soda-lime glass for borosilicate glass. At the same time, attention should be paid to the quality of glass smelting and forming to ensure the safety of the packaged food.
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