100% Virgin Kraft Paper

Grammage, g/m²

67-74

Breaking force in cross direction, kgs, not less than

4,3

Relative tensile elongation in the cross direction, %, not less than                                             

3,9

Absolute resistance to tearing in the machine direction, mN (G), not less than                               

770 (80)

Air permeability, cm3/min

200-600

Cobb water absorbency in a case of upper side drench (Cobb₆₀), g/m2, not more than

27

Humidity, %

7-11