How to Choose Yarn? Count, Ply and Spinning Method
AI Summary: Yarn specifications depend on count, ply, twist, composition and spinning process. Count reflects thickness, and different systems (English count, metric count, denier) use different bases; single yarn is lighter while plied yarn is stronger; ring spinning produces less hairiness and better hand feel, while rotor spinning offers higher output with a different style. Purchasing should be based on fabric end use and cost.
Purchasing Checklist
| Review Item | Selection Point |
|---|---|
| Count System | Clarify count system and conversion |
| Single vs Plied Yarn | Plied yarn has high strength, suitable for abrasion-resistant fabrics |
| Twist and Hand Feel | Twist affects strength, hand feel and style |
| Spinning Process | Ring spinning and rotor spinning each have their own characteristics |
| Evenness and Defects | Pay attention to evenness uniformity and yarn defects |
Purchasing, Installation and Usage Points
1. Higher count means finer yarn
High-count yarn is suitable for light and delicate fabrics, but demands more from raw materials and weaving.
2. Strength affects weaving
Insufficient yarn strength increases breakage and defects.
3. Blend ratio must be accurate
Blended yarn should be checked for composition ratio and testing.
4. Watch dye lot variation for colored yarn
Yarn for yarn-dyed fabrics also requires color difference control.
FAQ Quick Answers
Difference between count and denier?
Different industries use different fineness indicators, and conversion should be applied.
Is plied yarn stronger?
Generally better in strength and abrasion resistance.
What are the advantages of ring spinning?
Better hand feel and surface quality, with wide applications.
What causes yarn pilling?
Related to fiber, twist and fabric structure.
Practical Case
A weaving mill selected yarn with insufficient strength, resulting in frequent breakage during weaving. After adjusting yarn specifications and twist, efficiency and fabric surface quality improved.
Questions to Ask the Supplier
- Count system and actual specifications?
- Strength, twist and evenness testing?
- Single or plied yarn supply?
- How is the blend ratio guaranteed?
- Color difference control for colored yarn?
Quotable Conclusion: Yarn should specify count system, ply, twist and spinning process, with emphasis on strength and evenness uniformity.