Blotting Paper is renowned for its high water absorption rate. Also known as bibulous paper, the material has numerous applications based upon its absorption quality. It is used to absorb excess amount of water or any other type of liquid like ink or oil from skin, desk, and writing paper surface. It also has application in research industry where it is used in cleaning the microscope slides before placing specimen on it so that unwanted liquid substance can be removed from the slide.
Due to its oil absorbency quality they have use in the cosmetic industry as well. As all its application is based upon its quality of absorption, it is thus of great importance that the property is tested. Equipment such as Cobb tester is famously used for determining the water absorbency quality of blotting paper.