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Run: Film Tension and Web Alignment Audit - Converting

Audit unwind, process, and rewind tension plus web guide alignment on converting lines to catch wrinkles, baggy lanes, edge wander, and misregistration befor...

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Audit Details and Line Identification

Record the converting line name/number, machine ID, and the specific unwind, process, or rewind station being audited.
Record product name, substrate type, width, and roll/core details relevant to the audit.
Capture the audit date/time and note the shift and primary operator or setup technician.
Verify the line is running the correct job, SKU, or work order for the audit period.

Unwind Tension and Web Feed Control

Record the unwind tension setpoint used for the current run.
Measure actual unwind tension and compare it to the approved process range for the product.
Check that the unwind control system responds without hunting, oscillation, or sudden tension spikes.
Observe the web path for slack, flutter, edge wander, or other instability at the unwind section.

Process and Nip Tension Control

Record the process-zone tension setpoint between unwind and rewind.
Measure the actual process tension and confirm it remains within the approved range for the material and speed.
Verify nip pressure, contact, and engagement are set to the approved operating condition and are not causing slip or distortion.
Inspect the web path in the process zone for wrinkles, baggy lanes, telescoping, or other visible distortion.

Web Guide Alignment and Tracking

Verify the web guide is centered and aligned to the machine reference marks or approved setup position.
Confirm the web guide sensor provides stable feedback without dropout, drift, or false correction.
Observe whether the web remains centered and stable during startup, steady-state, and speed changes.
Select any indicators that could contribute to misregistration or poor web tracking.

Rewind Tension and Roll Build

Record the rewind tension setpoint used for the current roll build.
Measure actual rewind tension and confirm it is within the approved range for the product and roll diameter.
Inspect the finished roll for telescoping, starring, baggy build, or other winding defects.

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