Differences between OE spinning and ring spinning and a guide to choosing by application
- Sep 12
- 3 min read
Updated: Sep 30
Polyester staple fiber is one of the most widely used synthetic fibers in the spinning industry.
However, even for the same staple fiber, the optimal specifications differ depending on the spinning method (OE vs. ring), and this leads to a large difference in product quality and productivity.
In this post, we will compare the differences between OE spinning (Open-End Spinning) and ring spinning and the optimized polyester staple fiber specifications for each method, to help you select more accurate specifications..
What is ring spinning?
Ring spinning is the most traditional and widely used method of producing high-quality yarn. Compared to OE spinning, it is slow, but the quality of the yarn is very high, making it suitable for high-end clothing and delicate fabrics.
Advantages | Disadvantages |
Can produce very uniform and strong yarn | Slow production speed |
Produces soft and clean high-quality yarn | High equipment and maintenance costs |
Suitable for various blending applications | Not suitable for short fibers |
Description | |
Process | fiber mixing → Carding → Combing → Drawing → Roving → Spinning |
Main Uses | High-grade cotton yarn, knit yarn, combed yarn, blended fiber spinning, etc. |
What is OE spinning?
OE Spinning is an abbreviation for "Open-End Spinning" and is a yarn production technique that is different from traditional ring spinning.
It is suitable for cost-saving yarn production using recycled PET, and is used in large quantities in Bangladesh, Pakistan, etc. for T-shirts, jeans, and cleaning products.
It is mainly used to quickly and cheaply make yarn from short fibers such as cotton or regenerated polyester fibers.
Advantages | Disadvantages |
Fast production speed, suitable for mass production | Yarn may lack uniformity and strength |
Low equipment maintenance cost and low raw material cost | Not suitable for high-end products |
Enables use of recycled materials (e.g., recycled PET fiber) | Surface can be rough and often requires additional processing |
Description | |
Process | fiber mixing → Carding → Drawing → Spinning |
Main Uses | Low-cost T-shirts, workwear, denim, cleaning cloths, and similar products |
Polyester staple fiber TDS for ring spinning
The following is a specification for polyester staple fiber (PSF) optimized for ring spinning. The content is for reference only, so use fibers with specifications that match your machine equipment.
Item | Recommended Range or Example Value | Description |
Raw Material | Virgin PET / High-tenacity Recycled PET | |
Denier (D) | 1.2D ~ 1.5D | Ideal for fine and consistent yarn production |
Cut Length | 38mm, 44mm, 51mm (±1mm) | Longer fibers improve strength and quality |
Strength | ≥ 5.0 g/d | High strength required for high-quality yarn production |
Elongation | 25% ~ 35% | Optimal range to prevent excessive stretching |
Oil Content | 0.2% ~ 0.35% | Ensures smooth yarn processing and reduced friction |
Crimp | 3~5 crimps/inch | Provides spinning stability and bulkiness |
Color | Optical white / Dyeing grade natural, etc. | Can be selected based on final application and dyeing requirements |
Polyester Staple Fiber TDS for OE Spinning
Item | Recommended Range or Example Value | Description |
Raw Material | Recycled PET / Virgin PET | — |
Denier (D) | 1.5D ~ 3.0D | General range for OE (Open-End) spinning (coarse yarn) |
Cut Length | 32mm, 38mm (±1mm) | Short fibers suitable for OE process |
Strength | ≥ 4.0 g/d | Ensures basic yarn physical properties |
Elongation | 30% ~ 45% | Requires proper flexibility |
Oil Content | 0.25% ~ 0.4% | Prevents static and friction during spinning |
Crimp | 4~6 crimps/inch | Standard range for yarn stability and bulkiness |
Color | White / Semi-dull / Raw white | Selection available depending on the product application |
Depending on the spinning method, the length, denier, and lubrication conditions of the fibers vary, which directly affects the quality and cost of the final product.
DK FIBER can provide 1.4D polyester staple fibers that can be blended in yarns for spinning at a ratio of approximately 30%. Please contact us if you need polyester staple fibers for blending purposes.
