What is Recycled Paper?

August 09,2022

In our daily life, paper can be seen everywhere. Wallpaper for indoor decoration, newspapers for reading, and disposable napkins... It can be said that paper has brought great changes to daily life.


It is also because of people's large demand for paper that the amount of trees felled as raw materials for paper making is also increasing. To better save resources, people began to look for more efficient ways to use paper. Recycled paper is a good choice.




Recycled paper, after the waste paper is recycled, it is sorted, soaked in warm water, and remade into pulp. Waste paper comes from different sources, mainly paper-making waste, waste generated after commercial use, and waste generated after consumption.


Paper waste


Papermaking waste comes from the waste produced by the papermaking process itself, including the returned paper and the waste produced by wood processing, such as whole wood debris, sawmill waste, and sawdust, which are the early products of the paper manufacturing process;


Post commercial waste


Post commercial waste refers to waste generated in paper processing, printing, and binding processes. There are also unsold paper and paper products in stores, wholesalers, and retailers;


Post consumption waste


Post consumption waste refers to the paper and paper products transferred from general waste logistics (such as landfills), such as newspapers, magazines, books, cardboard boxes, and business paper discarded by people. These three kinds of waste paper can be turned into treasures in the production process of recycled paper.


Because the paper contains abundant cellulose, it has certain toughness. When we soak the used paper in water, the fibers will expand when they are wet, and the compactness will be relatively weakened, and these fibers can be separated. People can also make new paper in this way.

However, the pulp made from waste paper will contain several impurities, such as sand particles, small stones, etc.
These substances will form cavities and rough particles on the surface of the paper, or melt and stick to the paper reel to interrupt the operation.


Therefore, in the process of producing recycled paper, how to screen and removing these impurities is the most important. At present, the more common method is to first conduct high-temperature baking, screen and purify them, then go through the pulp slag remover, and finally go through multi-stage and multi-stage reciprocating slag removal. The waste pulp finally washes out the dust and sand and reappears to be white. With such complete technical treatment, the waste paper has new value.


The environmental protection significance of using waste paper to make recycled paper is self-evident. The data shows that the proportion of waste paper pulp in the raw materials of paper produced by using waste paper as raw material is 60% to 100%. This data shows that when we recycle 1 ton of waste paper, it is equivalent to protecting 10 trees. It can be seen that recycling waste paper and producing recycled paper are indeed good for the environment.


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