BOPP capacitor film cannot be evaluated from one average thickness value when slit lanes behave differently. Cross-web and down-roll gauge patterns may influence roll build, metallization and element winding.
An engineering plastic film manufacturer needs the nominal gauge, master-roll width, slit plan and measurement method. Dafu supplies ultra-thin capacitor film, while customers should connect profile data with their converting observations.
Measure left, center and right positions at defined intervals from the roll outside to the core. Label machine and transverse directions and retain samples from unusual areas.
Overlay the thickness map with roll hardness, wrinkles, edge behavior and metallization defects. Avoid changing tension settings before the location pattern is understood.
Track each slit lane into the finished element and apply the customer's electrical tests. Send Dafu the map, slit plan, settings and failed samples.
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