Name Writing Paper 5 Step Problem Solving Method
The paper may then undergo sizing to alter its physical properties for use in various applications. Coated paper has a thin layer of material such as calcium carbonate or china clay applied to one or both sides in order to create a surface more suitable for high-resolution halftone screens.(Uncoated papers are rarely suitable for screens above 150 lpi.) Coated or uncoated papers may have their surfaces polished by calendering.Most pulping operations using the kraft process are net contributors to the electricity grid or use the electricity to run an adjacent paper mill.
In the earliest days of paper making, this was done by hanging the sheets like laundry; in more modern times, various forms of heated drying mechanisms are used.
Coated papers are divided into matte, semi-matte or silk, and gloss.
Gloss papers give the highest optical density in the printed image.
Paper is a thin material produced by pressing together moist fibres of cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets.
It is a versatile material with many uses, including writing, printing, packaging, cleaning, decorating, and a number of industrial and construction processes.