Paperboard is a thick material. Although there is not much difference between paper and paperboards, still paperboard is a thicker than paper. According to the ISO standards, paperboard is a paper with the grammage 224 grams per meter square approximately. But papers are single whereas paperboards can be of a single ply or multi-ply. The advantage of the paperboards is that it can be cut and formed easily and it is light in weight, but as the paperboard is comparatively strong than papers, it is widely used for the purpose of packaging; Paperboards are also used for constructing the cover page of magazines, books. It is also used for making postcards, and for other artwork. For magazines, books, postcards and art and craft work colorful and coated paperboards are required to make the cover page or appearance of the product elegant and beautiful. To coat the paperboards, thin layer of kaolin clay is used to provide a thin colorful layer to the paperboards. The coated paperboards are widely used for packaging purposes if cookies and crackers, cake and pastries, cereal boxes, soaps and laundry detergent packaging and other dry fruit packages.
With the wide usage of coated paperboards, it is necessary for the manufacturers to make use of high-quality of testing machines to ensure the quality of the paperboards. These testing machines are used to measure the properties of coated paperboards such as bursting strength, edge crush strength, cobb sizing strength, and much more. Presto Stantest, one of the leading global manufacturer, supplier, and exporter of coated paperboards testing machine offers highly standardized equipment to measure the strength, properties and quality of coated paperboards.