What is T400 Fabric? Types | Difference | Applications

T400 fabric is made by combining DTY and ATY yarn with high false twisting. These false twists behave like the spandex. Let’s know every pin point detail.

What is T400 Fabric?

T400 specialized fabric made from Lycra T400 fiber. It is a bi-component, inherently elastic elastomultiester polyester fiber. T400 fiber provides excellent stretch and recovery. It provided a rough hand feel. Good moisture management makes the fabric suitable for technical applications.

What does the T400 mean?

The 1-inch fabric has 400 false twists in warp and weft direction which provides a cotton-like feel. False twist allows elasticity without spandex.

Composition and Structure

T400 fabric is an elastomeric polyester fiber developed by The LYCRA Company (formerly INVISTA). It combines two types of ATY and DTY fiber for different shrinkage levels. This unique structure creates a coil-like spiral effect. It provides the fabric with excellent elasticity without the need for spandex.

How is T400 Fabric Made?

The production of T400 fabric involves blending bi-component polyester filaments. It reacts differently under heat. When heated by air (ATY), one polymer (weft yarn) shrinks while the other maintains its original size. Therefore a natural crimp is created that provides built-in stretch and recovery.

This innovative yarn engineering creates a fabric that retains its shape while offering superior comfort and flexibility.

Types of T400 Fabric

T400 fabric is available in various types. Each fabrication designed for specific applications and performance needs. The most common types include:

100% Polyester T400 Fabric

T400 Fake Memory Fabric

100% Polyester T400 Fabric

100% Polyester T400/T800 Fabric

1. Pure T400 Fabric

• Composition: 100% T400 Polyester (75Dx150D)
• Features: Excellent stretch recovery, PA + wrinkle resistance.
• Applications: Activewear, sportswear, and denim

2. T400 Blended Fabric

• Composition: T400 Polyester/ Nylon blended with cotton, and spandex.
  Example: 94% Polyester, 6% Spandex (100D*40D x 100D*40D) 
• Features: Enhanced comfort, improved breathability, and softness
• Applications: Casual wear, outdoor clothing, and home textiles

3. T400 Mechanical Stretch Fabric

• Composition: Bi-component T400 polyester (75D*75D) with mechanical stretch properties.
  Example: 100% Poly Stripe Dobby T400 Mechanical Stretch Fabric (75D/150D T400)
• Features: Stretch without spandex, improved shape retention, and easy care
• Applications: Denim jeans, trousers, and skirts

4. T400 Coated Fabric

• Composition: T400 Polyester with PU, PVC, or acrylic coatings
  Example: 100% Polyester 75D DTY x 75D T400
• Features: Water resistance, improved durability, and enhanced performance
• Applications: Outerwear, raincoats, and protective gear

5. T400 Ripstop Fabric

• Composition: T400 Polyester (80s*75s) with reinforced thread patterns for added strength
• Features: Tear-resistant, lightweight, and durable
• Applications: Outdoor gear, tents, and military apparel

6. T400 Softshell Fabric

• Composition: T400 Polyester with TPU or laminated layers
  Example: 100% Polyester T400 Fabric 110Dx 150D 
• Features: Windproof, waterproof, and highly breathable
• Applications: Jackets, hiking gear, and sportswear

7. T400 Twill Fabric

• Composition: T400 Polyester blended with cotton for a stretchable denim effect
  (Example: 100% Spun Poly Twil T400 Mechanical Stretch Fabric. 40s*300D/T400)
• Features: DWR, UV 50+. High flexibility, better shape retention, and anti-sagging properties
• Applications: Jeans, jeggings, and casual pants

8. T400 Lining Fabric

• Composition: Lightweight T400 Polyester
• Features: Smooth texture, wrinkle resistance, and moisture control
• Applications: Suit linings, jacket interiors, and bags

9. T400 Fleece Fabric

• Composition: T400 Polyester with brushed surface
• Features: Soft, warm, and ideal for insulation
• Applications: Hoodies, sweatshirts, and winter wear

Each type of T400 fabric serves distinct purposes, offering various benefits to suit various industries and clothing requirements.

Key Features of T400 Fabric

Exceptional Stretch and Recovery

T400 fabric offers 15-20% better stretch recovery than standard polyester blends. This makes it ideal for garments requiring flexibility and shape retention.

Durability and Strength

Unlike traditional spandex fabrics, T400 fibers resist breakage even after repeated washing. Studies show that T400 fabrics can withstand over 50 wash cycles while maintaining their original texture and elasticity.

Wrinkle Resistance

T400 fabric's self-crimping structure prevents wrinkles from setting in, reducing the need for frequent ironing. PA Coating helps the fabric to be the wrinkle resistant. 

Breathability and Comfort

Despite its strength, the T400 fabric allows airflow, making it suitable for activewear and outdoor apparel.

Moisture-Wicking Properties

T400 fabric efficiently draws moisture away from the skin, ensuring comfort during physical activities or in humid environments.

Difference Between T400 Fabric and Spandex

Key Takeaways:

• T400 fabric is ideal for durable, breathable garments with natural stretch.
• Spandex excels in highly elastic applications like performance wear and compression clothing.

Advantages of T400 Fabric than Spandex

Long-Lasting Performance

Compared to spandex-based fabrics, T400 materials have a longer lifespan. Spandex loses elasticity over time. But T400 fibers maintain their stretch and structure even after prolonged use.

Easy Care and Maintenance

T400 fabric resists shrinking and fading. It is easier to care for. It will be discussed in the following section. T400 requires minimal ironing. Additionally retains its color after multiple washes.

Applications of T400 Fabric

T400 fabrics are ideal for various clothing categories:

1. Activewear: Offers flexibility and moisture control for sports gear, yoga pants, and leggings.
2. Denim Jeans: Provides a comfortable stretch without sagging or losing shape.
3. Outerwear: Used in jackets, windbreakers, and performance gear for added durability.
4. Automotive Interiors: Ensures long-lasting fabric in car seats and panels.
5. Medical Textiles: Provides flexible yet sturdy fabric for medical garments and equipment covers.

Care and Maintenance Tips for T400 Fabric

Washing Instructions

• Use cold or lukewarm water to prevent damage.
• Opt for mild detergents to retain fabric strength.

Drying Guidelines

• Air drying is recommended to maintain elasticity.
• If using a dryer, select a low-heat setting.

Ironing and Storage Tips

• Iron on a low heat setting to avoid fabric distortion.
• Store T400 garments in a cool, dry place to prolong lifespan.

Conclusion

T400 fabric stands out for its remarkable stretch, durability, and easy-care properties. Whether you need flexible activewear, sturdy upholstery, or wrinkle-free clothing, T400 fabric meets the demand. Its eco-friendly benefits make it an excellent choice for sustainable fashion.

By choosing T400 fabric, you're investing in comfort, performance, and longevity — all in one package.

FAQs

1. Is T400 fabric suitable for summer clothing?
Yes. The T400 fabric is breathable and moisture-wicking. It is perfect for summer wear.

2. How does T400 fabric compare to spandex?
T400 fabric offers a similar stretch. But it has improved durability and better shape retention than spandex.

3. Can T400 fabric be dyed easily?
Yes, T400 fabric can be dyed using both part dyeing methods. It ensures vibrant and long-lasting colors.

4. Is T400 fabric environmentally friendly?
T400 fabric reduces spandex usage. It is a more eco-conscious alternative with longer-lasting properties.

5. Does T400 fabric shrink after washing?
No, T400 fabric resists shrinking when washed correctly. It always ensures long-term fit and comfort.