Ivory board is everywhere in our life, textbooks, publicity materials, disposable tableware, product packaging, and so on. It can be seen how important paper is in life, and its great contribution to human beings is immeasurable.
The main raw material of paper is trees, and the situation of our country's forests is not optimistic, the national forest coverage rate only reached 16.55%. The fifth survey showed that the country's per capita forest area was only 21.3% of the worlds per capita.
About 10,000 years ago, 6.2 billion hectares of forest covered nearly half of the earth's land mass. Now there are just over 2 billion hectares left. The world's rainforests are being lost at a rate of 17m hectares a year, the equivalent of losing an area of tropical forest the size of a football field every minute. The annual global paper production and consumption have reached 320 million tons. If every ton of paper needs to be felled 4 trees with an average age of 20 years as raw materials, nearly 1.3 billion trees will disappear from the earth in one year.
The forest resources in many famous forest areas in China are on the verge of exhaustion due to excessive logging for a long time. For example, the Changbai Mountains, the Greater Khingan Mountains, and the Lesser Khingan Mountains have become barren mountains in some places. With the reduction of forest resources, the harm to human beings is severe, can aggravate soil erosion, cause soil erosion, and not only changed the ecological environment of the upper reaches of the basin but also intensified the amount of sediment in the river, making the river bed elevation, increase the flooding.
The demand for lightweight paper is particularly strong today. Thus came a paper of high bulk ivory board. The paper-making company has developed new fillers, pigments, thickening agents and strengthening agents suitable for the production of high thickness paper. Middle-grade paper can reduce the tightness by adding high loose thickness pulp, and high-grade paper can increase the distance between fibers by blocking the connection between fibers and improving the loose thickness.
While maintaining the quality and thickness of the original paper, high bulk folding can reduce the amount of pulp, reduce the environmental pollution load and save energy. Due to its high stiffness, the product has a comfortable texture and shows excellent performance in the printing process, and it is possible to have a variety of processing. In addition, because of its lighter quality, it also has the advantage of saving transportation costs.
Post time: May-16-2022