Natural biological packaging materials mainly include plant fiber materials and starch materials, of which natural plant fibers account for more than 80%, which have the advantages of non-polluting and renewable, simple processing, beautiful shape, practical and simple, and can be used well after being abandoned. Converted into nutrients, realize from nature to nature, enter the ecological cycle.
Some plants are natural packaging materials, as long as they are processed a little, they can become packaging with natural flavors, such as leaves, reeds, gourds, bamboo tubes, etc. These packages are beautiful and cultural, which can make people feel back to nature and have the original ecological feeling. Such as the packaging of bamboo tea and wine, and the packaging of the original ecological coconut.
Rimping Supermarket in Thailand uses banana leaves for vegetable packaging instead of plastic. The vegetable shelves are all green in different shades at a glance, without the reflection of plastic bags. Degradable materials are mainly based on plastics, adding photosensitizers, modified starches, biodegradants and other raw materials, through these raw materials to reduce the stability of traditional plastics, accelerate their degradation in the natural environment to reduce the impact on the natural environment. pollute. According to the different ways of degradation, it can be divided into biodegradable materials, photodegradable materials, thermally degradable materials and mechanically degradable materials. At present, traditional degradable materials, such as starch-based, polylactic acid, PVA film, etc., are mainly used maturely; other new degradable materials, such as cellulose, chitosan, protein and other degradable materials also have great potential for development .
