The hottest natural materials have great potential

2022-07-26
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Natural materials have great potential in the field of green packaging

green packaging, also known as environment-friendly packaging, generally means that the packaging design can not only ensure the good performance of commodities, but also meet the requirements of environmental protection and resource regeneration. Green packaging conforms to the sustainable development strategy, so it is gradually becoming the mainstream direction of packaging design. Recently, food packaging safety problems have occurred frequently. Therefore, the green packaging branch of the Chinese society of Environmental Sciences has issued an industry initiative of self-discipline to all packaging enterprises, hoping that packaging enterprises will consciously abide by national laws and regulations, consciously strengthen scientific research and innovation, and devote themselves to studying and discussing how to provide more environmentally friendly and healthy green packaging for the public through various effective ways and means. The materials for green packaging mainly come from the vast nature, so natural materials have great potential in the field of green packaging

paper packaging

as the main component of paper packaging is natural plant cellulose, which is decomposed by microorganisms, it will decay quickly in nature and will not pollute the environment, reducing the cost of processing packaging waste, and the raw materials of paper packaging are rich and easy to obtain, so paper packaging has become the internationally popular "green packaging" at present. Paper packaging is widely used to replace metal cans to hold various liquid drinks, food, milk, etc. for example, the aseptic fresh-keeping carton packaging of "Tetra Pak" developed in Sweden can keep the stored food fresh for 6 months without refrigeration. After recycling, the packaging can be used to make furniture and decorative materials. This aseptic "Tetra Pak" fresh-keeping carton packaging has become the mainstream of liquid food packaging in Europe

pulp molded products not only have the advantages of light weight, low price and shock resistance, but also have the characteristics of good air permeability, which is conducive to the preservation of fresh food. In the international commodity circulation, they are widely used in the turnover packaging of fragile, fragile and extrusion resistant items such as eggs, fruits and glass products

bamboo packaging

mistletoe leaf is an important food packaging product in Japan, South Korea and other countries. The quality of mistletoe leaf produced in Song county is high, and has gradually become the largest supplier in Japan, South Korea and other countries. There are many oak trees in Songxian County, so the local farmers are guided to engage in the processing and sales of Quercus leaves for the packaging of green food. Half of the Quercus leaf Market in Japan is occupied by Songxian County. Luoyang Baihe company, the largest local export enterprise, has an annual output of more than 40000 boxes of mistletoe leaves. Nearly 7000 people are engaged in the picking and transportation of mistletoe leaves every year. The market demand is particularly strong, such as pickling and processing. The per capita income is increased by more than 400 yuan, bringing considerable income to local farmers

China's bamboo forest area ranks first in the world. Bamboo packaging has the characteristics of wide resources and recyclability, which is in line with the selection principle of green packaging materials. The anti-bacterial property of bamboo makes it free from moths and decay during the growth process, without the use of any pesticides. Using bamboo to produce tableware or food packaging containers not only has no worries about the supply of raw materials, but also has no pollution in the process of production and use, which is conducive to environmental protection. At the same time, tableware or food packaging containers made of bamboo materials also retain the unique natural fragrance, simple tone and hardness and softness characteristics of bamboo. High flow rate (or lower flow rate) can be adopted for the project. The main application methods are original bamboo tube (wine, tea, etc.), bamboo weaving equipment (fruit plate, fruit box), etc. In China, it is of far-reaching significance to further expand the scope and field of bamboo packaging

Jinan assaying professional research and development of high-precision microcomputer controlled pressure testing machine edible packaging means that when the packaging function is realized, it is about to become "waste", so that it can be transformed into an edible raw material. Edible packaging is a kind of paper like packaging material processed from edible raw materials. This special packaging that can realize the transformation of packaging function is called edible packaging. Edible packaging can be divided into two categories: one is to make edible paper-based food packaging as thin as paper by adding common food raw materials such as starch and sugar paste, and then adding some flavoring substances; The other is to modify the edible non-toxic fiber, and then add some food additives to make an edible "paper", which can be used as food packaging. Nowadays, food packaged in "food paper" with beef flavor, chicken flavor, apple flavor and other flavors has appeared in the market, which is very popular with consumers. In particular, the use of edible paper food packaging in cold drink packaging has played a role in keeping cold and sanitation

the cereal film developed by cremson University in the United States uses corn, soybean and wheat as raw materials, and the extracted plant protein is processed into a film. It can not only maintain moisture, but also has good moisture and oxygen resistance, and has certain antibacterial properties. It is suitable for the packaging of sausage and other foods. After use, it can be used for poultry or as fertilizer. The corn protein packaging film is suitable for the packaging of high fat foods with heavy oil and strong permeability, as well as the inner layer of snack boxes and other oily foods. A company in Queensland, Australia has developed an edible potato chip packaging, which can be eaten by people after eating potatoes without causing waste; Japan has developed edible packaging paper made of deacetylated chitosan extracted from shell materials. The fast-food noodle seasoning packaged in this edible packaging paper can be directly cooked in hot pot. The use of edible packaging not only facilitates consumers' living consumption, but also avoids packaging waste pollution. It is worthy of further research and promotion by Formosa Plastics. Chitosan edible packaging film is used as food packaging material to solve the contradiction between food packaging waste and environmental protection. It can be used for the preservation of candy, preserved fruit, cake, moon cake, etc

edible "vegetable paper" packaging is very popular with consumers. The "vegetable paper" made by washing, peeling, cutting, cooking, cooling, drying and processing vegetables has a bright appearance, which is very easy to induce customers' desire to buy. The food packed with this kind of "paper" can be eaten directly without tearing off the "wrapping paper". According to expert estimates, a piece of "vegetable paper" is equivalent to the nutritional value of 250 grams of fresh vegetables. Because the edible paper-based food packaging has the function that can not be replaced by any other food packaging, it has many varieties and properties. It is very widely applicable to the internal and external packaging of various raw and cooked foods, and it is very convenient to use. China is rich in resources and has a large population. Its food consumption ranks first in the world. Vigorously developing edible paper food packaging has been favored by many scientific research institutions, manufacturers and businesses, and has become a food packaging with great development prospects

information source: China's information industry

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