Because paper is composed of a randomly felted layer of fiber, it follows that the structure has a varying degree of porosity. Thus, the ability of fluids, both liquid and gaseous, to penetrate the structure of paper becomes a property that is both highly significant to the use of paper. Paper is a highly porous material and contains as much as 70% air.
Principle
Porosity is a highly critical factor in Printing Papers Laminating Paper, Filter Paper, Cigarette Paper. Bag Paper, Anti-tarnish Paper and Label Paper. Porosity is the measurement of the total connecting air voids, both vertical and horizontal, that exists in a sheet. Porosity of sheet is an indication of absorptive or the ability of the sheets to accept ink or water.
How to use
Prepare paper sample
Take inside part of the cylinder and put on the buffer
Turn handle to stretch up sample clippers
Put in paper sample, and turn handle on to clip up both head surface sample on to tide
Prepare stop watch on and turn off after measured 100 cc
POROSITY TESTER
Construction
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