Cup-Sealing Film Rolls: Record Changeovers and Splices in the Trial
A cup-film trial should include roll loading, splices, start-up rejects and sealed-cup checks.
Kaida Group lists transparent cup-sealing roll film. A trial is usually judged by the cups it seals, yet the operator also has to load and replace the roll. Recording changeovers makes it easier to compare two film options under normal production conditions.
Capture the roll setup
Document the roll width, core specification, winding direction and maximum roll dimensions accepted by the line. Record how the film is threaded, how tension is set and where the first approved sealed cup appears after a new roll is loaded. Use the machine team's actual setup sheet as the reference.
Assign each trial roll an ID. Keep its material and production information connected to the cups sampled from that roll. If the line runs more than one cup size, note which change parts and settings were used for each sample group.
Include a planned changeover
During a trial, stop and load a second roll using the normal operator procedure. Count the cups produced before stable sealing and presentation resume, and record why any units were rejected. If the process uses a splice, document where it enters the machine and how the line handles that section. The equipment supplier and quality team should define the applicable splice procedure and inspection point.
Compare the sealed cups from just before the changeover, immediately afterward and during steady running. Look at seal appearance, film position and opening behavior using the same checks at each point. Avoid judging the film solely from a few ideal cups made in the middle of a roll.
Turn the result into a repeatable handoff
Keep roll IDs, setup values, changeover duration, rejected count and cup sample IDs together. A change in roll construction or core should trigger a review of the setup instructions. Share the observations with both the film supplier and equipment team so adjustments have a clear owner.
Send Kaida the cup and machine specifications plus the changeover record. This helps a buyer compare roll-film proposals on practical line use as well as the finished lid.