What Is Paper Made Of?

          Papers. Do you know what paper is? I'm sure that you definitely know what it is but do you
have any idea what is it made of? So, now, you will know what it is made from.


          Paper is actually created by compressing together moist fibers from grasses, woods, rags and drying them into flexible sheets such as the ones we used to write or draw on. Although it might look simple to you, the fact is that it is more complicated and complex than what you may imagine now. There are two
types of pulping process, which are the chemical pulping and the mechanical pulping.


          Firstly, to make pulp from a wood by chemical pulping, lignin will have to be removed cellulose fibers,  which helps to maintain the quality of the fibers. This is called wood-free papers. Then, in order to produce a white paper,  bleaching process will have to be done but it consumes 5% of the cellulose.

Chemical pulping

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          Secondly, mechanical pulping, where  wood is chipped then fed into huge steam-heated refiners, squeezing it and made into fibers by rolling them between two steel discs. Though this process requires  a lot of electricity and its quality is not as good as the chemical pulping, it is cheaper.

Mechanical pulping

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               These two ways above are now still used in several country.


Adapted from: http://en.wikipedia.org/wiki/Paper