Antibiotic composite plastic packing film

Abstract

The invention provides an antibacterial composite plastic packing membrane and the making process thereof. And it comprises heat sealing layer, middle layer, and outer layer, where the composition of the heat sealing layer contains: LLDPE 5-40 parts, LDPE 10-35parts, MPE 15-35parts, and antibacterial agent 0.5-5 parts,the composition of the middle layer contains MPE 3-5parts, LDPE 15-25parts, LLDPE 55-70parts, antibacterial agent 0.2-3parts,the composition of the outer layer contains MPE 3-13parts, LDPE 15-35parts and LLDPE 45-65parts. And it carefully chooses antibacterial agent which has high-efficiency broad-spectrum property, is safe and nontoxic to human body, and has good heat resistance and succeeds in combining the antibacterial agent with PE membrane which has common physical and mechanical properties and makes the antibacterial agent uniformly distributed on the surface of the PE membrane, thus improving antibacterial function of the membrane and the surface polarity and hydrophily of the membrane, so as to make the membrane have good antistatic property.

Description

(1) Technical field [0001] The invention relates to packaging technology, in particular to a plastic composite packaging film that can be used for medicine, dairy products, food, hygiene and the like. (2) Background technology [0002] In the 21st century, plastic packaging materials must not only meet the increasing requirements of customers on quality, delivery time, and service, but also develop in the direction of environmental protection, high-tech content, sustainable circular economy, and safety. [0003] At present, in order to ensure the quality requirements of the contents and prolong the shelf life, enterprises using packaging generally adopt the following sterilization methods: the first method is high-temperature sterilization. The disadvantage of killing bacteria in food or packaging materials is that it destroys the nutrients in the food and increases production costs. Another disadvantage is that products in some fields cannot be sterilized by high temperatur...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to ensure the quality requirements of the contents and prolong the shelf life, enterprises using packaging generally adopt the following sterilization methods: the first method is high-temperature sterilization. The disadvantage of killing bacteria in food or packaging materials is that it destroys the nutrients in the food and increases production costs. Another disadvantage is that products in some fields cannot be sterilized by high temperature sterilization, such as medicines, milk powder, quick-frozen foods, and sanitary products. and other products; the second method is hydrogen peroxide sterilization, which is generally used for liquid contents, but residual substances will remain after hydrogen peroxide sterilization, and whether it can bring hidden dangers to human health has always been a concern and concern Question; the third method is ultraviolet sterilization, which has the advantage of less damage to the contents and packaging, but the sterilization is not complete; there are also a variety of sterilization methods, but they are all different degrees There are shortcomings