Presto's Cobb Test for Corrugated Board is used for quick assessment of the quantity of water absorbed by a corrugated board, paperboard or paper in a given period of time. The water absorptiveness or Cobb value of a substance is defined as the mass of water which is absorbed in a specified period of time by a paper sample, board sample of 1 square meter under the highly standardized conditions. Cobb tester means the amount of liquid penetration into a sheet of paper, corrugated board or paperboard.
The instrument comprises of a cylindrical container which is clamped to a flat base with a flexible and removable base through which the sample is placed. The conditioned test specimen is weighed and then placed inside the cylindrical vessel on the dry surface. After that 100 cc of water is poured over the sample. After a given period of time water is poured off and the test piece is taken out from the cylindrical vessel and placed on the dry bottling paper with the wet side up. Another bottling paper is taken out to put it on the top of the wet sample, and excessive water is drained out by pressing it with the roller, two times in forward direction and 2 times in backward direction. Presto’s Cobb Tester for Corrugated board provided highly accurate results.
To Know more about information visit- Cobb Sizing Tester
To Know more about information visit- Cobb Sizing Tester
Heat Deformation - HDT/VSP Tester is a consistent tool useful for determining the ability of a given polymer to bear load at elevated temperatures. Accurate and reliable deflection or deformation is an important component in the plastics industry.
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TP310 is a prominent color measurement instruments used in many mainstream industries which have been designed and manufactured by competent engineers and scientists of Presto Stantest. The instrument has many advantages of other international standard color measurement instruments.
Presto Melt Flow Index Tester is used for evaluating the flow properties of molten plastics or resins. The Melt flow Index of thermoplastic materials is defined as the rate of flow (in grams per ten minutes) of extrudates of molten resins through a jet of a particular length and diameter.
The Presto Melt Flow Index Tester - NXG Model is a reliable instrument used for evaluating and analyzing the flow properties of molten plastics or resins. The determination of the melt flow index of plastic materials is an important parameter in the evaluation of its quality.
