Green Packaging Industry Development Countermeasures and Planning (3)

b. Research and development of functional special cardboard for food packaging. The white paperboard currently produced in China is not categorized to distinguish different packages. It is recommended to develop and produce special cardboard for packaging solid and liquid foods. The former is such as carton board packaging for foods such as cakes and pastries, and light-proof damp-proof paper cans, such as packaged salt, and carton board for semi-finished foods packaged for steaming. The latter is used for packaging paperboard, such as milk and fruit juices;
c. Composite paper bag production technology. 25-40kg small cement bags can be changed from the current 4-layer paper bags to 2-layer paper bags. The basis weight of cement bags is changed from the current 80g·m2 plain paper to 90-100g·m2 stretch paper bags.
Small grain bags are suitable for people's daily needs. It is recommended to produce small-sized food packaging bags with double white stretch paper bags.
d. The use of domestic raw bleached pulp as the main raw material for the production of disposable cutlery special cardboard. To improve the strength of non-wood pulp, processing on the surface of the paperboard suitable for food packaging, so that the finished paperboard has the functions of resistance to hot water, no leakage, no delamination, oil resistance and heat sealing;
e. Development and application of natural green packaging materials. Natural plants and mineral resources are easily recycled and recycled, and processing into green packaging products can increase their economic value. To develop green eco-friendly plant fiber snack boxes made from straw, wheat straw, sugarcane bagasse, and clam shells. Some natural plants such as grass, bamboo, shrubs, wicker, etc., can be woven into bags, baskets, baskets and other packaging containers. China's bamboo resources account for the first place in the world. Bamboo plywood packaging boxes can be used for the transportation and packaging of machinery, electrical appliances and other equipment; natural mineral materials such as clay can be made into ceramic packaging containers. The rock particles are expanded to make lighter perlite, and after adding a little adhesive, they can be molded into different shapes of buffer packaging products;
f. Honeycomb sandwich panel technology and equipment development and application Roller technology The research and development of stem source honeycomb structural material can be combined with two-sided materials with multiple materials, and applied to building material decorative panels and packaging materials. Honeycomb paperboard has less consumables, high strength, and cushioning properties, making it possible to manufacture wood packaging boxes and pallets. Widely used in home appliances, motorcycles, glass, ceramics, mechanical and electrical products packaging. It is necessary to strengthen the development of supporting equipment for the manufacture of large-scale honeycomb boxes. At the same time, it is necessary to strengthen the research, development and application of honeycomb panel carton technology;
g. Development and application of pulp molding technology. Pulp molded products use waste paper or pulp as a raw material, and a special shape pulp product is manufactured by a molding machine. It has four major advantages: the raw material is waste paper or pulp; the production process is harmless to the environment; it can be recycled; its volume ratio is small, can be overlapped, and transportation is convenient;
In addition to pulp molding as a buffer package, in recent years, molded dishes, glassware and pottery trays, as well as seedling trays have been developed and used for a wide range of applications. It is necessary to pay attention to the development of applications for expanding the packaging of daily household appliances, industrial small appliances, and hardware and electromechanical products;
h. Aseptic packaging technology and machinery. Aseptic packaging technology refers to sterilized foods and beverages, processed and packaged in an aseptic environment, without preservatives, and without refrigeration, to obtain a longer shelf life. Aseptic packaging machinery includes materials production, sterilization, packaging, and other related equipment.
The milk and beverage industry in China will develop at a high rate of doubling every four years and will bring a broad market for aseptic packaging.
2.2.2.2 plastic packaging a. Research and development of degradable plastics. The composite degrading material developed and developed in China is the addition of starch or other additives to the plastic resin as a culture agent for microorganisms to achieve the degradation effect, and is mostly used in plastic packaging bags and food packaging;
The use of pure starch as raw material, the use of expansion process, can be made of degradable tableware; the other is the use of pure starch mixed with 50% rice husk, manufacturing molded tableware, the cost is slightly higher than the previous one, but the high temperature performance is good.
To meet the environmental requirements of landfills (filling and burying), it is necessary to actively study the combination of light and biological environmental degradation plastics, which can reduce or inhibit the environmental pollution of plastic packaging waste. (To be continued)