IV. Core Conversion Relationships of the Three Major Indicators
In actual production and trade, it is often necessary to convert between yarn count, ply count, and Tex. So how are these conversions performed?
1. Conversion between Metric Yarn Count (Nm) and Tex (Tex)
Core Formula: Tex = 1000 / Nm (Applicable to single yarn)
Ply Count Conversion: First calculate the tex of the single yarn, then multiply by the ply count. For example, for a 2/Nm 30 ply yarn, single yarn Tex = 1000 / 30 ≈ 33.33 Tex, ply yarn Tex = 33.33 × 2 ≈ 66.67 Tex.
2. Conversion between Imperial Count (Ne) and Tex (Tex)
Core Formula: Tex = 5315 / Ne (5315 is a fixed constant for converting between imperial and metric units)
Application Scenario: When dealing with customers using European and American imperial units, this formula can be used to quickly convert to the internationally recognized Tex, ensuring accurate and consistent specifications.
Summary and Recommendations:
3 Nm / 2 ply (TEX 333/2) | 4.2 Nm / 3 ply (TEX 238/3) | |
Yarn Thickness | Thicker (333 TEX) Visually and tactilely fuller. | Finer (238 TEX) More delicate in appearance and touch. |
Yarn Structure | 2-ply, relatively simple structure | 3-ply, more complex and stronger structure |
Single Yarn State | Coarser single yarn (167 TEX / 6 Nm) | Extremely fine single yarn (79 TEX / 12.6 Nm) |
Core Performance | Full and robust appearance, basic durability | Delicate and refined texture, high strength and durability |
Cost Implications | Simple structure, relatively high raw material usage, cost may be primarily due to raw material costs | Complex structure (multi-ply, high-count), requires advanced spinning technology, typically resulting in higher costs |
Suitable Scenarios | Medium-volume commercial or residential spaces seeking cost-effectiveness and basic performance | For high-end commercial or luxury spaces seeking high quality and durability |
When choosing a blanket, don't look at Nm or ply in isolation. Instead, consider their converted TEX value and understand the fineness of the single yarn.
* For durability and fineness: Look for specifications like "high Nm value with a higher ply number" (e.g., 4.2/3). This means "multiple fine yarns," a typical characteristic of high-end commercial blankets.
* For fullness and cost-effectiveness: Specifications like "medium to low Nm value with a lower ply number" (e.g., 3/2) may be more suitable.
