Case Study
How We Found the Real Cause of Label Tearing on a Manufacturing Line
The Problem
A bedding manufacturer was losing customers because finished quilts were arriving at the end of the production line without their product labels attached. The labelling machine was the obvious suspect — every label that went in seemed to be missing by the time the quilt was packed. The machine was inspected, calibrated, and adjusted. The problem persisted.
The Investigation
Rather than continuing to focus on the labelling machine, I observed the entire production process from the point where each label is stitched onto the quilt through to the end of the line. Within minutes of watching, it became clear that the labelling machine was working correctly — every label was being attached. The labels were disappearing somewhere downstream.
The Root Cause
When a quilt transferred onto the conveyor, a toothed drive belt was running approximately 3 mm beyond the edge of its pulley. At the moment of transfer, the belt tooth caught the sewn-in label and tore it free — before the product ever reached the end of the line. The symptom appeared at the labelling machine. The cause was a conveyor guide arrangement further down the production line.
The Solution
A simple modification to the conveyor guide prevented the drive belt from contacting the label during transfer. No change to label stock, applicator calibration, or operator handling was required. The engineering was straightforward.
The Result
Labels stayed attached throughout production. Customer returns from this issue stopped. The modification required minimal materials and caused no disruption to the production schedule.
If a quality problem keeps returning no matter what your team tries, the real cause is likely still undetected. ReThink Manufacturing investigates systematically — observe the full process before changing any part of it.
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