Natural materials in the green packaging field as big

Green packaging, also known as environmentally friendly packaging, generally refers to the packaging design can not only ensure the performance of the goods intact, but also meet the requirements of environmental protection and resource regeneration. Green packaging is in line with sustainable development strategies and is therefore becoming the mainstream of packaging design. Recently, food packaging safety issues have become more frequent. For this reason, the Green Packaging Branch of the Chinese Society of Environmental Sciences has issued a self-disciplined industry initiative to all packaging companies. It hopes that packaging companies will consciously abide by national laws and regulations and consciously increase scientific research and innovation through various effective methods. And approaches are dedicated to researching and exploring ways to provide the public with greener and healthier green packaging. The green packaging material is mainly from the vast nature, so natural materials are promising in the green packaging field.

Paper packaging

Because the main component of paper packaging is natural plant cellulose, which is decomposed by microorganisms, it will quickly rot in nature, will not pollute the environment, reduce the cost of processing packaging waste, and the raw material for paper packaging is rich and easy to obtain. Paper packaging has become the current international popular "green packaging." Paper packaging is widely used as a substitute for metal cans to hold various liquid beverages, foods, milk, etc. For example, the "Tylor brick" aseptic and fresh-keeping carton packaging developed by Sweden, the contained food can be stored for 6 months without refrigeration. After the packaging is recycled, it can be used to make furniture and decorative materials. This kind of sterile "Tetraile" fresh-keeping carton packaging has become the mainstream of European liquid food packaging.

Pulp molded products not only have the advantages of light weight, low cost, shock resistance, etc., but also have the characteristics of good air permeability, which are conducive to the preservation of fresh foods. In the international commodity circulation, they are widely used in egg products, fruits, glass products, etc. Fragile, fragile, and afraid of squeezing articles on the packaging.

Bamboo material packaging

Kanazawa is an important packaging product for foods in countries such as Japan and South Korea. The quality of eucalyptus produced in Gifu Prefecture has become the largest supplier in Japan, South Korea and other countries. There are many banyan eucalyptus trees, so local farmers are directed to export and sell eucalyptus leaves for green food packaging. Half of the Japanese zelkova market is occupied by Gifu Prefecture. The largest export company in the country, Luoyang Lily Co., Ltd., has an annual output of more than 40,000 boxes of loquat leaves. Every year, nearly 7,000 people are engaged in picking, pickling and processing of loquat leaves, and the average per capita income is more than 400 yuan, which brings considerable income to local farmers.

China's bamboo forest area ranks first in the world, bamboo packaging has a wide range of resources, can be recycled characteristics, in line with the principle of selection of green packaging materials. The bamboo's own anti-bacterial properties allow the bamboo to grow free of insects and rot without any pesticides. The use of bamboo materials for the production of cutlery or food packaging containers not only has no worries for the supply of raw materials, but also has no pollution during the production and use of bamboo utensils or food packaging containers, which is conducive to environmental protection. At the same time, cutlery or food packaging containers made of bamboo still retain the unique natural fragrance, simple hue and firmness and softness characteristics of bamboo. At present, the main application methods are the original ecological bamboo (wine, tea, etc.), bamboo ware (fruit plate, fruit box) and so on. In China, it is of far-reaching significance to further broaden the scope and fields of use of bamboo packaging.

Edible packaging

Edible packaging means that when the packaging function is realized, it will be transformed into an edible raw material when it is about to become "waste." Edible packaging is a kind of paper-like packaging material made from edible raw materials. This kind of special package that can realize the transformation of packaging function is edible packaging. Edible packaging can be divided into two categories: one is the use of common food ingredients such as starch, sugar paste, and then add some flavoring material after paper processing, to create a paper-thin edible paper-based food packaging; The other is modified nontoxic fiber that can be eaten and then added some food additives to make a kind of edible "paper piece" for food packaging. Today, foods packaged in “food paper” with various tastes such as beef taste, chicken taste, and apple flavor have appeared on the market, and are very popular among consumers, especially the use of edible paper-type food packaging in cold drink packaging. Has played a role in keeping cold and sanitation.

The cereal film developed by the University of Clemson in the United States uses corn, soybean, and wheat as raw materials, and the extracted vegetable protein is processed into a film, which can not only maintain moisture, but also has good moisture-proof and oxygen-blocking ability, and also has certain antibacterial properties. It is suitable for the packaging of sausages and other foods. After use, it can be used for poultry consumption or fertilizer. Corn protein packaging film is suitable for high grease, high permeability, high fat food packaging, and as the inner layer of fast food boxes and other foods with oil. A company in Queensland, Australia, has developed a package of edible potato chips that can be eaten by people after they have been eaten. It does not cause waste. Japan has developed decapcened chitosan made from shells to make edible packaging paper. Fast food noodles with edible packaging paper can be directly put into the hot pot to cook. The use of edible packaging is convenient for consumers' consumption and avoids the pollution of packaging waste. It is worth further research and promotion. Using chitosan edible packaging film as a food packaging material solves the contradiction between food packaging waste and environmental protection, and can be used for preservation of candy, preserved fruit, cakes, and moon cakes.

Edible “vegetable paper” packaging is very popular with consumers. The vegetables are washed, peeled, chopped, cooked, cooled, dried, and then processed into a "vegetable paper," the appearance of bright, easy to induce the desire to buy customers. People use this kind of "paper" packaged food and eat it directly without tearing "wrapping paper". According to experts' estimates, a "vegetable paper" is equivalent to the nutritional value of 250 grams of fresh vegetables. Due to the fact that edible food-type food packaging can not be replaced by any other food packaging, its variety performance is very wide, and it is widely applicable to the inside and outside packaging of various raw and cooked foods, and it is very convenient to use. China is rich in resources and has a large population. Food consumption ranks first in the world. The vigorous development of edible paper-type food packaging has been favored by numerous scientific research institutions and manufacturers, and has become a promising food packaging.