Identify the advantages and disadvantages of food packaging plastics

Update:31 May 2018
Summary:

How to identify the advantages and disadvantages of foo […]

How to identify the advantages and disadvantages of food packaging plastics?
How can we discern which food packaging plastics are safer, greener, and more comfortable for consumers? This is a common concern for businesses, customers, and even the entire community. We must understand how to buy food packaging plastics, understand the materials and production of plastic packaging, so as to better select foods that are hygienic and safe.
 Plastic plasticizers are one of the commonly used additives in food packaging plastics. In the production process of synthetic plastic packaging, producers will use plasticizers as additives, and their effects will increase the plasticity of the polymer system, because of the plasticization. Agents cause some serious hazards to plastics, so they should be taken into account in the selection of plasticizers.
In the daily life, we often encounter plastic raw materials: PP, PE, PS, PET, LDPE, HDPE, etc. These raw materials belong to food packaging plastics, safe, non-toxic, health and environmental protection. Consumers can feel comfortable buying such products. So what kind of food plastic packaging products will be made into these raw materials? Such as: common small food packaging, snack food packaging, beverage packaging bottles, PET plastic beverage bottles, carbonated soft drink packaging, soy milk bags, soy milk plastic cups, yogurt plastic packaging boxes, biscuits plastic boxes, food packaging films, condiment packaging bags , seasonings, etc.

At present, the world recognized environmental plasticizer is acetyl tributyl citrate (ATBC). There is also a plasticizer that is a novel alkyl aromatic sulfonamide compound that is non-toxic, odorless, and colorless. This product is suitable for plasticizers used in packaging materials such as polyamide nylon polyester-cellulose-rubber dairy products, beverages and foods. After being plasticized, the product exhibits good transparency and low-temperature deflection performance, and can also be used as a good general-purpose plasticizer. Agent.

In addition to the selection of food packaging plastics, we will provide some simple ways to identify the advantages and disadvantages of food packaging plastics.

First look: If the product appearance is rough, there are molding defects, color is not correct, there are impurities, printing quality is poor, it is best not to use. The unsatisfactory quality of the print will affect the appearance, while the color will fade and pollute other items. And the products with QS logo on the plastic packaging are all safe and healthy standards, and generally can be eaten with confidence.

Two smell: The main reason for the difference in smell of plastic products is the use of recycled materials and poor quality additives. The irritating odor emitted by an odoriferous product can harm the body's respiratory system. It is best not to use it.

Three tests: Consumers can check by hand whether the selected dark color products are qualified: pour a little vinegar on the absorbent cotton balls, and then wipe them back and forth over the food surface 100 times. If the dyed cotton balls are dyed with color, the product is not qualified. In order to prevent pigment from penetrating into the food, it is recommended not to use deep-colored plastic products to hold oily liquid foods (except for melamine tableware).