Cobb Paper absorption tester ---- QINSUN G219

Cobb Absorbency Tester is designed according to the basic parameters and requirements stipulated in GB/T1540-2002 Determination of Water Absorption of Paper and Cardboard (Cobb Method). This standard applies to the determination of the water absorption of various paper or board surfaces. But it is not suitable for accurately evaluating the writing performance of paper or cardboard.
Paper and cardboard surface water absorption (Cobb) value: the amount of water absorbed by the surface of paper and cardboard per unit area under a certain pressure and temperature within a specified time, in g/m2. The specific formula is as follows: C=(G2-G1)X100. In the formula: C-Cobb water absorption value; G2-the weight of the sample weighed after water absorption, G1-the weight of the sample weighed before water absorption. Paper and cardboard absorbency tester is a conventional instrument for paper and cardboard surface water absorption test, also known as paper surface absorption weight tester. This instrument uses the Cobb (Cobb) test method among various methods of absorption test, so it is also called the Cobb Absorption Tester.