Browsing articles tagged with " smoothness"
Feb
18
2011
Articles

Coefficient of Friction Test of BOPP Films

The smoothness of BOPP cigarette film is one important index for BOPP films with is the testing requirements coming along with the high speed packing. There are four kinds of situations that need coefficient of friction testing, namely, 1. the coefficient of friction of the film and the metal side of the machine or the transfer belt; 2. the inside side between films; 3. the film inner side and the cigarette outer package; 4. the [...]

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