The Significance of Waste Paper Recycling in the Field of Green Packaging

Waste paper was called by scientists as “Forest”. In 2006, Zhang Yin of Zhanglong Paper Group succeeded in using recycled paper to produce recycled paper and became the richest man in 2006. Waste paper refers to the general name of used paper and paperboard, and materials used in the related industries such as corners and corners, or “secondary fibers”. All kinds of waste paper, waste wood fiber, and wood waste are collectively referred to as the "fourth kind of forest."

Green packaging materials are the inevitable result of human beings entering a highly civilized world and the rapid development of the world economy. They have emerged from the call for human beings to maintain their living environment. They have the basic properties of general packaging materials (such as protection, processing operability, Appearance decorative, economical, easy to recycle, etc.), also has no harm to human health and eco-environment, is easy to recycle, and has unique properties that can be degraded by the environment and return to nature.

At present, many countries in the world have already used waste paper to regenerate and have achieved remarkable results in the field of manufacturing green packaging: Long View Fiber Co., Ltd. of the United States used recycled kraft paper to produce a high-quality retail packaged paper bag with handles, with original leather Color, bleach and other color paper bags can be printed in three to four colors, with a long life cycle, and can be biodegradable. The Japan Institute of Industrial Technology crushes the waste paper to 5 mm or less, and mixes it with a starch paste to make particles with a diameter of 1-3 mm. The particles are blown into a metal mold that is in an open state, and then the metal mold is closed and pressurized and heated. The moisture contained in the paste is discharged from the vent hole during the heating process, and a package product with better biodegradability can be produced.

In the "Tenth Five-year" development plan for China's papermaking industry and the future fifteen-year vision plan, a new policy of "gradually realizing the use of wood fiber as the mainstay, expanding the recycling of waste paper, and using a non-wood fiber scientifically and rationally with a diversified raw material structure" was proposed. As a potential recyclable timber resource, waste paper is increasingly being valued by scientists and entrepreneurs. As long as it is properly recycled, it will certainly make it possible to play an unexpected role in the packaging field.

For each ton of waste paper recovered by a paper mill, 800 kg of paper can be recycled, which is equivalent to saving 3 cubic meters of wood, saving 1.2 tons of coal, saving 100 cubic meters of water, saving 300 kilograms of chemical raw materials, and saving 600 degrees of electricity. Practice has proved that after repeated use of waste paper, the strength of the pulp remains basically constant.

Although waste paper recycling will increase some costs and difficulties due to cleaning of debris and ink, it can reduce energy consumption and reduce the amount of papermaking accessories such as aluminum sulfate, caustic soda and other environmental pollution, and at the same time it can save raw materials and energy, and reduce packaging. The multi-effects of natural fiber raw material resource consumption, substitution of straw pulp to improve the quality of paper products, reduction of production costs and reduction of packaging pollution, protection of the environment, and maintenance of ecological balance.