Conventional spandex meets the demands of customization and market differentiation with diversified category and complete specification Being an ideal textile raw material, it has the outstanding quality of high strength, great elastic modulus, little proportion and excellent durability.

1. What is Conventional Spandex?

Conventional Spandex (also known as Standard Spandex or White Spandex) is the most widely used elastic fiber in the global textile market. It serves as the fundamental building block for all functional spandex variations developed later.

This synthetic fiber is composed of a long-chain polymer called polyurethane. It typically comes in natural white, semi-dull, or clear (transparent) finishes. Its defining characteristic is the ability to stretch 5 to 8 times its original length and instantly recover to its initial shape once released.

2. Key Technical Characteristics

• Extreme Elasticity: Provides powerful stretch and recovery, allowing garments to hug the body comfortably without restricting movement.

• High Versatility: Easily blends with almost all natural and synthetic fibers, including Cotton, Polyester, Nylon, Rayon, and Wool.

• Diverse Fineness Range: Can be produced in a vast array of thicknesses, from ultra-fine to very heavy, meeting various fabric surface requirements.

• Lightweight Nature: Does not significantly increase the weight of the finished fabric, even when blended to provide high stretch.

3. Common Denier (D) Specification Table

The Denier (D) count determines the thickness and compression force of the elastic fiber within the fabric structure:

4. Practical Applications

The product has been widely used in the production of underwear, socks, jeans, leisure sportswear, medical bandage, etc. The specifica-tion of product covers from 10 D to 2500 D, which can satisfy demands of different users in the fields of circular-knitting, covering yarn, etc.

5. Economic and Production Benefits

• Cost Efficiency: The most competitively priced among all spandex types, making it ideal for large-scale production.

• Stable Supply: Available in large quantities with standard specifications from suppliers worldwide.

• Ease of Processing: Highly compatible with modern circular knitting, flat knitting, and weaving machinery.