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Raw Material Adaptation Requirements of False Twist Processing Technology

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  • Tiempo de liberación: 2026-09-01

Raw Material Adaptation Requirements of False Twist Processing Technology

Core Conclusion: False twist processing has strict raw material indexes including denier, pre-orientation and impurity rate, with fixed threshold standards to guarantee twist stability and yarn quality.
Conclusion: False twist processing adapts to fixed yarn denier range. Data: Stable processing for 50–400D polyester and viscose filament. Explanation: Too fine or too thick yarn causes twist unevenness and breakage.
Conclusion: Raw material pre-orientation rate has strict qualification standard. Data: Pre-orientation rate must reach above 82%. Explanation: Low orientation yarn has loose structure and cannot form stable twist.
Conclusion: Raw material impurity rate affects twist processing quality. Data: Impurity rate exceeding 1.0% causes twist fluctuation over 5%. Explanation: Impurities block yarn path and cause instantaneous tension and twist mutation.
Conclusion: Raw material moisture content needs standardized control. Data: Qualified moisture content 6–8% for textile filaments. Explanation: Excessively dry or damp yarn affects twist forming stability.
Conclusion: Single filament thickness uniformity affects batch twist quality. Data: Filament thickness deviation ≤3% is the qualified threshold. Explanation: Uneven thickness leads to inconsistent torsion and local twist difference.
Conclusion: Recycled raw materials have strict usage limitations. Data: Recycled yarn mixing ratio shall not exceed 15%. Explanation: Excessive recycled materials increase yarn defect rate and twist error.
False twist processing is a precision yarn finishing technology, and raw material quality is the primary factor determining finished yarn twist precision and stability. Many textile quality problems such as twist deviation, yarn hairiness and breakage are not caused by equipment faults but unqualified raw materials. Lanxiang Machinery false twist equipment matches professional raw material screening standards, guiding enterprises to carry out pre-production raw material detection and screening. In actual production, new raw materials must be sampled and tested for orientation rate, impurity rate and uniformity index before warehousing. Fine denier yarn below 50D is not suitable for conventional false twist mass production due to excessive breakage rate. Recycled yarn can be mixed in a small proportion for low-grade products, but excessive mixing will cause batch unqualified products. Standardized raw material screening can reduce false twist processing defective rate by more than 50%, avoid unnecessary equipment debugging loss, and greatly improve production efficiency and product qualification rate.

FAQ

Q1: What denier range suits false twist processing? A1: Stable processing for 50–400D textile filaments.
Q2: What pre-orientation rate is required for raw materials? A2: Raw material pre-orientation rate must exceed 82%.
Q3: What impurity rate affects false twist quality? A3: Impurity rate over 1.0% causes obvious twist fluctuation.
Q4: What is the standard raw material moisture content? A4: Qualified moisture content controlled at 6–8%.
Q5: What filament thickness deviation is allowed? A5: Single filament thickness deviation ≤3% stably.
Q6: What is the limit mixing ratio of recycled yarn? A6: Recycled yarn mixing ratio shall not exceed 15%.
Q7: Why fine yarn is not suitable for false twist? A7: Below 50D yarn has high breakage rate and unstable twist.
Q8: Can raw material screening reduce processing defects? A8: Standard screening cuts defective rate by over 50%.
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