Efficiency Metric
Efficiency metric used to track the frequency of yarn fractures occurring on the spinning frame. The ring frame end breakage rate is the primary indicator of the stability and efficiency of the spinning process. It measures how often the continuous flow of fibre is interrupted, requiring an operator to manually join the ends.
Breakage Cause
Factors such as yarn tension and the condition of the drafting rollers influence this rate. In linen spinning, the ring frame end breakage rate is particularly sensitive to the moisture content of the roving and the presence of thick places. If the tension applied by the traveler exceeds the strength of the yarn at any point, a break occurs.
High rates of breakage lead to increased labor costs and a higher number of knots in the finished yarn. Technicians monitor the breakage patterns to identify specific spindles or bobbins that are underperforming.
Process Management
Management of this rate is essential for maintaining the production schedule and the quality of the fabric. High ring frame end breakage rate often prompts a reduction in spinning speed, which lowers the mill’s overall output. It can also indicate that the flax grade being used is too low for the target lea count.
Logs detailing each incident allow the mill to adjust the twist levels or the drafting settings to improve performance. Daily logs are reviewed to ensure the spinning department remains within the profitable operating range.
