‌Silk Fabric Introduction‌

‌Basic Parameters‌

1. ‌Fiber Structure‌

   • Raw Material: Mulberry silk (domestic silkworm) or tussah silk (wild silkworm), both natural protein fibers.
   • Single Filament Form: Flat ribbon shape, 10-20 microns in diameter (mulberry silk is finer), with a smooth and slightly curved surface.
   • Composition: 70%-80% fibroin and 20%-30% sericin; degummed silk (cooked silk) becomes softer.

2. ‌Density & Weight‌

   • Lightweight (e.g., Habutai): 40-60 g/m², ideal for summer clothing.
   • Medium-weight (e.g., Crepe de Chine): 80-120 g/m², commonly used in dresses.
   • Heavyweight (e.g., Satin): 120-200 g/m², suitable for winter coats.

3. ‌Physical Properties‌

   • Density: 1.30-1.37 g/cm³ (raw silk) vs. 1.25-1.30 g/cm³ (degummed silk).
   • Moisture Absorption: Regain rate of 11%-12% (mulberry silk slightly lower than tussah).
   • Strength: Breaking strength of 2.6-3.5 cN/dtex, elongation at break ~20%.

‌Core Functions‌

1. ‌Comfort‌

   • ‌Thermal Regulation‌: Low thermal conductivity ensures warmth in winter and coolness in summer.
   • ‌Skin-Friendly‌: Smooth fibers minimize friction, ideal for sensitive skin.

2. ‌Practical Performance‌

   • ‌Luster & Aesthetics‌: Triangular fiber structure creates a prismatic effect for natural shine.
   • ‌Breathability & Moisture Absorption‌: Porous structure enhances air circulation; outperforms cotton in moisture absorption.
   • ‌Lightweight‌: Among the lightest and warmest materials, alongside silk floss.

3. ‌Special Uses‌

   • ‌Industrial Applications‌: Resistant to acids (except sulfuric acid) and insulating properties for protective gear.
   • ‌Cultural Value‌: Traditional craftsmanship (e.g., woven brocades) carries historical and artistic significance.

‌Notes‌

• ‌Care‌: Avoid direct sunlight, harsh rubbing, and hand wash in cold water to prevent fiber damage.
• ‌Limitations‌: Poor abrasion resistance and chemical sensitivity; use mild detergents.