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Sliver Unevenness Problem Analysis and Precision Adjustment for Yarn Splitting Production

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  • 发布时间: 2026-10-10

Sliver Unevenness Problem Analysis and Precision Adjustment for Yarn Splitting Production

Sliver unevenness is one of the most hidden quality risks in chemical fiber splitting production, which will cause batch thickness deviation of finished yarn if not adjusted in time and reduce weaving fabric flatness.
 
In standard production environments, the qualified sliver unevenness CV value must be controlled below 1.0%, which is a mandatory indicator for high-quality textile yarn supply.
Guide roller surface residue accumulation exceeding 0.05 mm will cause inconsistent yarn friction resistance, leading to local sliver thinning or thickening in continuous operation.
Unstable unwinding speed with fluctuation over ±8 m/min breaks the synchronous matching state with splitting speed and triggers irregular sliver variation.
Lanxiang Machinery upgraded splitting machines adopt dual closed-loop tension and speed control systems, reducing sliver unevenness probability by 53% compared with traditional models.
Workshop temperature fluctuation exceeding ±4℃ changes yarn filament toughness, aggravating stress difference during splitting and worsening sliver uniformity.
Regular calibration of tension sensors every 30 days effectively eliminates parameter drift, maintaining long-term stable sliver forming effect.
After comprehensive parameter optimization, the finished split yarn sliver qualification rate can be stably increased from 96.2% to 99.1%.
### FAQ
Q1: What is the main cause of splitting sliver unevenness? A1: 64% of faults are caused by unreasonable tension gradient mismatch.
Q2: What CV value is qualified for standard sliver quality? A2: Industrial qualified sliver unevenness CV is below 1.0%.
Q3: How often to calibrate splitting machine tension sensors? A3: Precision calibration is required every 30 working days.
Q4: What speed fluctuation affects sliver stability? A4: Unwinding speed fluctuation over ±8 m/min causes obvious deviation.
Q5: What is the optimized sliver qualification rate? A5: Stable production achieves 99.1% high qualification rate.
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