Silk Fiber
Nature — What Is Silk Fiber?
Silk fiber is a natural protein fiber produced by silkworms (the larvae of the Bombyx mori moth) when they spin cocoons. It has been valued for thousands of years for its smooth texture and natural sheen.
Silk is composed mainly of fibroin (a strong structural protein that forms the core filament), coated with sericin (a natural gummy protein removed during processing).
Scientific Structure (Explained Clearly)
Silk fibers are continuous filaments (long unbroken strands rather than short staple fibers). The triangular cross-section of silk (refers to its prism-like shape under a microscope) reflects light and creates natural luster.
Structural Characteristics
- Continuous filament fiber (long smooth strands)
- Triangular cross-section (enhances shine)
- Protein-based composition (fibroin structure)
Fabric Impact
- Smooth, luxurious hand feel
- Natural shine
- Elegant fluid drape
Performance — How Silk Behaves in Clothing
1. Smoothness & Comfort
The continuous filament structure creates a smooth surface that glides comfortably against the skin.
2. Natural Luster
The triangular fiber shape reflects light, giving silk its distinctive shine without synthetic coating.
3. Temperature Regulation
Silk helps regulate body temperature by allowing airflow while providing light insulation.
4. Strength for Its Weight
Silk has high tensile strength (resistance to pulling force) relative to its light weight.
Reality — What Customers Should Know
Advantages
- Luxurious smooth feel
- Natural shine
- Lightweight comfort
- Elegant drape
Limitations
- Can weaken when wet
- Requires delicate washing
- May wrinkle depending on weave
Buying tip: Mulberry silk is considered the highest quality due to consistent filament length and smoothness.