Packaging material is the material basis of commodity packaging, the carrier of various functions of commodity packaging, and the most basic element of the use value of commodity packaging. Research and development of packaging must start with the most basic elements.
Green packaging material is the inevitable requirement and product of human civilization and world economic development. They are generated in the voice of maintaining the living environment of human beings and the wave of green revolution in the world, which is an irreversible and inevitable development trend. Therefore, it is of great significance to study it, master it, develop it and benefit mankind.
Innovative green packaging raw materials
Back to the primitive times, people used raw or rough natural materials as packaging materials or containers. For example, animal skins, pottery pots, bamboo baskets, wooden boxes and buckets are all made of animal skins. In this period, the characteristics of packaging is that the material comes from pure nature, and the processing is only limited to the physical way of manual manufacturing.
With the rise of industry, people began to use some industrial products as packaging materials, such as paper, metal plate, glass, etc. through processing, the materials directly into the packaging body and packaging containers. This stage is characterized by natural processing of materials, such as paper through wood pulp, reed pulp, and then bleaching, filtering and pressing into paper, while glass and metal through mining, smelting, and further processing into wood, processing and production mode is industrial production.
In the 1960s, with the development of chemical synthesis science, a large number of plastic materials were used for packaging. Since then, a clear demarcation line has been formed, which ends the complete natural state of packaging materials, promotes the development of enterprises in the production of industrial packaging materials, and creates four pillars of the modern packaging material model, namely, paper, glass, metal and plastic. This stage is characterized by raw materials from nature, but after further processing or another step of synthesis into usable packaging materials. Its processing and manufacturing mode is completely modern large-scale industrial production.
With the rapid development of packaging industry, packaging materials are rich and colorful, plastic packaging occupies a considerable proportion. So the next step is more and more packaging waste and garbage, which are difficult to control, pollute the environment and harm people's health. Then there is the global green revolution. Green packaging originated from the United Nations Commission on environment and development in 1987. Our common future is also known as the friend of environmental packaging and ecological packaging. It refers to the packaging materials that are harmless to the ecological environment and human health, recyclable, recyclable and degradable.
The research and development of green packaging in the world has achieved remarkable results in a short time. Such as the emergence of photodegradation, biodegradation materials, natural fibers, natural shell filled degradation materials, and biosynthetics. Further promote the development of green packaging. This stage is characterized by the use of advanced science and technology, the combination of natural and synthetic raw materials into packaging materials, which not only does not pollute the environment, but also can be recycled, and can also degrade the environment back to nature, which is the product of the high-tech era.