What kind of plastic water cups are unqualified?

Today, the editor continues the previous article, which is concise and to the point. What kind of plastic water cups are unqualified? Please see:

First of all, the label is not clear. A familiar friend asked you if you always put the material first? Why is it not clear today? There are many kinds of materials for producing plastic water cups, such as AS, PS, PP, PC, LDPE, PPSU, TRITAN, etc., which are also food grade materials for plastic water cups. http://www.zhanyict.com/Are you confused? Why did the editor's previous article say that some materials are harmful when they are still food grade? Yes, this is related to the problem of unclear labeling. Because consumers lack knowledge of plastic materials, especially the content represented by the digital triangle symbol at the bottom of the plastic water cup is even more half-understood.

This causes consumers to think that the plastic water cups they bought are food grade and safe, but due to incorrect use, the water cups release harmful substances. For example: AS, PS, PC, LDPE and other materials cannot withstand high temperatures. When the water temperature exceeds 70℃, the materials will release bisphenol A (bisphenol A). http://www.zhanyict.com/Friends can confidently search and check about bisphenol A on the Internet. However, materials such as PP, PPSU, TRITAN, etc. can withstand high temperatures and will not release bisphenol A. Therefore, when consumers do not know the material usage requirements, many consumers ask the most about whether the container will be deformed when filled with hot water. Deformation is only a change in shape, which is different from releasing harmful substances.

Most of the plastic water cups sold on the market have a number triangle symbol on the bottom. Some responsible manufacturers will add the material name next to the number triangle symbol, such as: PP, etc. However, there are still some unscrupulous merchants who produce plastic water cups that either have no symbol or simply have the wrong symbol. http://www.zhanyict.com/Therefore, I think unclear labeling is the first priority. At the same time, I also recommend that every plastic water cup manufacturer consider the health of consumers more. In addition to the number triangle symbol and material name, add the temperature resistance label and the release of harmful substances reminder, so that consumers can also buy plastic water cups that suit them according to their own purchasing habits.

Secondly, the material. What I am talking about here is not the type of material, but the quality of the material itself. No matter what kind of food-grade plastic material, there are differences between new materials, old materials and recycled materials. The gloss and effect presented by the new material product cannot be achieved by using old materials or recycled materials. http://www.zhanyict.com/Old materials and recycled materials can be used under standardized management and no pollution and strict quality control, which is also in line with the concept of reuse of environmentally friendly materials. However, there are some unscrupulous merchants who use old materials or recycled materials without standards, and the storage environment is extremely poor. Even the materials produced by the previous production are crushed and used as recycled materials. When you buy plastic water cups, watch carefully. If you find that some plastic water cups have miscellaneous impurities or a large amount of impurities, such water cups should be decisively abandoned and cannot be purchased.

Third, the function of the water cup. When buying a plastic water cup, you should carefully check the functional accessories of the water cup to see if the functions are complete and make sure that the accessories are not damaged or fallen off. http://www.zhanyict.com/At the same time, when buying a plastic water cup, it is best to use it according to your own usage habits and the functions of the water cup, to see if it hits your nose when drinking water, whether the gap in the handle is easy to hold with your palm, etc. The editor has talked about sealing in many articles. If the sealing of the water cup you bought is very poor, this is a serious quality problem.

Finally, heat resistance. I have already mentioned that the heat resistance of plastic water cups is different, and some materials will release harmful substances when exposed to high temperatures, so when you buy plastic water cups, you must carefully understand the production materials and the characteristics of the materials. http://www.zhanyict.com/Here I would like to remind you that some brands write plastic as polymer materials, which is actually a gimmick in the copywriting. Among them, water cups produced by AS materials are not resistant to high temperatures, and are even less resistant to temperature differences. High-temperature hot water or ice water will cause the material to crack.