Are our Commonly used Plastic Cup Covers Reliable in Terms of Safety?
In many milk tea shops, fruit juice shops, soybean milk shops, and other places, people use disposable paper cups with a plastic cup cover on them when packaging liquids. We all know that plastic products are generally toxic after heating. Although the toxicity is very small, if we are exposed to a large amount, it will still be harmful to the human body, but so far, We haven't seen the news that the plastic cup cover causes human poisoning in the news reports, so is this commonly used plastic cup cover reliable in terms of safety?
First of all, let's talk about whether the cup cover of PP material is harmful to the human body. It is mainly used for gas beverage bottle cap gaskets and bottle caps. It has the advantages of heat resistance, no deformation, high surface strength, and good chemical stability. The disadvantages are poor toughness, easy embrittlement under low-temperature conditions, and no wear resistance due to poor oxidation resistance. The bottle cap made of this material is mostly used for the bottle cap packaging of fruit wine and carbonated drinks.
Then let's talk about whether the PE cup cover is harmful to the human body. It is mainly used for hot filling bottle caps and aseptic cold filling bottle caps. This material is non-toxic, has good toughness and impact resistance, is also easy to form film, has high and low-temperature resistance, and has good environmental stress cracking performance. The disadvantages are large molding shrinkage and severe deformation. Many vegetable oils and sesame oil in glass bottles are made of this material. These two materials are environmentally friendly and have no toxic plastics. Are the materials of plastic bottle caps safe? The processing and molding process is also relatively safe.
Based on the above, the PP plastic cup cover and PE cup cover are harmless to the human body, so we can use them with confidence and reliable safety.