What is the standard cob value of kraft paper?

The standard Coefficient of Friction (COF) value for kraft paper typically ranges from 0.2 to 0.6, depending on the specific type and treatment of the paper. This friction value can vary based on factors like surface treatment, moisture content, and the presence of additives. For optimal performance in packaging applications, it's important to consider the specific requirements and conditions under which the kraft paper will be used.