COEFFICIENTS OF STATIC AND KINETIC FRICTION OF UNCOATED WRITING AND PRINTING PAPER...

• This method describes a horizontal plane procedure for the determination of the coefficient of static and kinetic friction of paper measured when sliding against it.
• Static COF relates to the force required to initiate movement between two surfaces while kinetic COF relates to the force required to cause continuation of the movement at uniform speed.
• The methods differ in that in testing packaging materials, the two specimens are allowed to slip upon one another three times before the force measurement is determined, while in this method the determination is made on the first slip.
• One specimen of the paper sample is clamped to a horizontal plane surface, the other to a specimen sled.

It Provides information on:

• Terminology
• Sampling and test specimens
• C alculations
• Keywords