The 220 gsm spacer polyester spandex fabric for athletic sweatshirt (Item Code: D251) is a high-grade functional weft knit air layer fabric engineered for premium sportswear and activewear. Fusing graphene-modified fibers, polyester, and spandex into a specialized three-layer spacer structure, this fabric provides active far-infrared heat retention, natural antibacterial protection, and structured 3D drape without adding unnecessary weight.
Key Specifications
| Parameter | Specification |
|---|---|
| Item Code | D251 |
| Description | spacer fabric |
| GSM | 220G/M2 |
| Width | 160CM |
| Knitting | Weft |
| Composition | 34% Polyester / 15% Spandex / 51% Graphene-blend |
| Yarn | - |
Advanced Three-Layer Air Layer Structure and Thermal Performance
The 220 gsm polyester spandex spacer fabric utilizes a double-layer weft knit construction to create a micro air layer between the inner and outer faces. This sandwich structure locks in body heat because air acts as an excellent thermal insulator.
Despite its structured 3D loftiness—which can reach up to 80% of typical knit fabrics—this weft knit spacer fabric remains exceptionally lightweight and resists deformation. The tight bonding of the outer and inner layers yields a smooth, single-jersey hand feel on both sides, ensuring a luxury touch against the skin while maintaining a crisp, wrinkle-resistant silhouette for athletic apparel.
Functional Benefits of Graphene-Modified Fibers
The integration of graphene-modified fibers (comprising 51% Graphene-blend of the total composition) introduces advanced technical performance to this polyester spandex spacer fabric:
- Far-Infrared Heating: Graphene absorbs body heat and reflects it back as far-infrared waves. At low temperatures of 20–35℃, its far-infrared emissivity for wavelengths of 6–14μm exceeds 88%, creating a dynamic thermal barrier that locks in warmth when cold and dissipates heat during high activity.
- Durable Antibacterial Protection: Graphene physically disrupts bacterial cell membranes via its nano-edges, achieving an antibacterial rate of over 99% against common bacteria. This physical mechanism ensures the performance does not degrade after multiple wash cycles.
- Electrostatic Discharge: Due to graphene's excellent electrical conductivity, the fabric lowers surface resistivity to quickly release static charges, preventing the fabric from clinging to the skin or attracting dust.
- Negative Ion Release & Moisture Management: Friction against the skin triggers the release of negative ions. Additionally, the fiber structure rapidly absorbs and exports sweat and moisture, keeping the wearer dry and preventing heat loss from dampness.
Material Breakdown and Structural Integrity
Engineered specifically as a 220 gsm spacer fabric for athletic sweatshirt production, Item D251 balances stretch, durability, and texture by combining three key materials:
- Graphene-Modified Fibers (51% Graphene-blend): Provides high strength, excellent abrasion resistance, and a silky, low-pilling surface luster, while carrying the active functional benefits.
- Polyester (34%P): Adds structural stability, quick-drying performance, and wrinkle resistance to the spacer knit fabric.
- Spandex (15%S): Delivers superior elasticity and recovery, allowing the fabric to stretch freely with body movements and return to its original shape without bagging or sagging.
Recommended Applications for D251
With its 160CM width, 220G/M2 weight, and structured drape, this spacer fabric is highly versatile for premium apparel lines:
- High-End Athletic Sweatshirts & Hoodies: The 3D air layer structure creates a modern, sculptural silhouette that holds its shape.
- Fashion-Forward Sweatpants & Casual Trousers: Offers comfort, thermal regulation, and sag-free wear.
- Business Casual Blazers: Provides the structured look of a woven jacket with the stretch and comfort of a knit.
- Premium Thermal Underwear & Homewear: The double-sided smooth touch and far-infrared heating make it ideal for close-to-skin cold-weather wear.
FAQ
What is the exact composition and structure of the D251 fabric?
It is a weft knit spacer fabric with a composition of 34% Polyester / 15% Spandex / 51% Graphene-blend, featuring a three-layer air layer structure that bonds graphene-modified fibers, polyester, and spandex.
How does the far-infrared heating function work?
The graphene-modified fibers (51% Graphene-blend) absorb body heat and reflect it back as far-infrared rays. It achieves a far-infrared emissivity of over 88% at 20-35℃ for 6-14μm wavelengths.
Will the antibacterial and anti-static properties wash out?
No. The antibacterial performance (over 99% rate) and anti-static properties are derived from the physical structure and conductivity of the integrated graphene, meaning they remain effective after multiple washes.
Is this 220G/M2 fabric heavy or bulky?
No, it is lightweight despite its thickness. The weft knit air layer structure creates a lofty, 3D volume (up to 80% loftiness) that locks in warmth without adding physical weight or bulk.
What is the usable width of this fabric for marker planning?
The fabric has a consistent width of 160CM, which provides excellent yield for athletic sweatshirts and apparel cutting.
Ordering & Customization
We supply the D251 220G/M2 spacer fabric globally for brands and sourcing offices looking to elevate their functional sportswear lines. Contact our team to request spec sheets, color options, or physical swatches to test the hand feel and thermal properties in your own facility.
Written by Wenruo
Textile Engineer, Forall Lab