The Paper
The paper is a structure obtained on the basis of vegetal fibers of cellulose, which intertwines forming a resistant and flexible leaf. These fibers are obtained generally from pine and eucalyptus.
According to the elaboration process of cellulose pulp, this one classifies in mechanics or chemistry, each one of which gives origin to different types of paper as far as rigidity and whiteness.
Depending on the final use that will occur to the paper, in its manufacture is used a mixture of the different fiber types, those that will contribute their specific characteristics to the end item. A very important property of the paper is its Media weight, is to say the weight in grams of an area of a square meter of paper (gr/m2). This characteristic is the one that determines that the material can be called cardboard or fine cardboard.
Production process of paper (click to enlarge)