Essay On Commercial Paper

Introduction
Paper is made from cellulose fibres through several papermaking processes. There are various types of commercial papers available in the market. Some of the examples of the commercial papers are absorbent papers, paperboard, printing paper and currency paper. All this commercial papers have their own properties which are some may with high strength, some may with high fold endurance and some may with low strength properties. All this different properties is mainly due to the fibres used, the method used for pulping, bleaching and papermaking processes. During the processes, the cellulose fibres are treated by different ways so that the desirable properties can be achieved and the undesirable properties will be minimized.

Absorbent paper which also known as blotting paper has a waterproof polyethylene backing that holds the paper securely in place. It is recommended for soaking up excess amount of liquids especially for laboratory uses. It is designed to have a high speed clean-up times.

The thickness of the paperboard usually is over 0.25mm, 0.010 in or 10 points. According to ISO standards, paperboard has the grammage 224 gsm. Paperboard can be either single-ply or multi-ply and it is strong but with lightweight for packaging usage.

Printing papers are paper grades used for printing purpose such as newspaper, magazines, books, copying and digital printing. There are several types printing papers. There are fine papers; machine finished coated paper and newsprint. Fine papers are printing and writing paper grades mainly based on chemical pulps. Machine-finished coated paper (MCF) has a grammage of range 48-80gsm. They have high print gloss and adequate stiffness. Newsprint is low-cost paper. It is the most common paper to use for newspapers and advertising