Poly Poly Corespun Sewing Thread

Engineered to merge the strength of polyester filaments with the softness of polyester fibers—ideal for high-speed sewing across denim, bedding, apparel, and upholstery.

Product overview

Mahalaxmi’s Poly‑Poly corespun sewing threads combine the tensile strength of continuous polyester filament with the soft, fibrous wrap of polyester staple — creating a balanced thread that’s ideal for both speed and comfort. The filament core delivers strong, durable seams, while the spun outer ensures a smooth, soft finish that minimizes fabric abrasion.

This versatile thread suits a wide array of industrial sewing needs where both machine performance and end‑product aesthetics are critical. Whether overlocking a denim seam, stitching a comforter, or finishing a blouse, the corespun construction delivers reliable performance from machine needle to final garment or textile.

Available in multiple deniers, a broad color palette, and seamless compatibility with high‑speed sewing machines, Poly‑Poly corespun threads offer consistent quality “spool to stitch.”

Technical specification

Tkt Tex No. Construction (Denier*Ply) Breaking Strength (Kg) Elongation Range (%) Recommended Needles (NM)
15 135 4/12 8.20 17–25 150–190
20 135 3/12 7.80 18–26 130–160
25 120 3/16 5.50 18–28 130–160
30 105 2/12 5.00 15–23 110–130
35 90 3/20 4.49 20–24 110–130
40 80 2/16 3.70 19–27 105–125
50 60 3/29 2.90 18–26 100–110
60 50 3/36 2.58 18–21 90–110
75 40 2/29 2.00 18–26 90–110
100 35 2/36 1.40 15–23 80–90
120 24 2/45 1.10 15–23 70–80
140 24 2/50 1.00 14–25 60–70
180 18 2/60 0.92 14–25 60–70

Key Features & Benefits

Balanced strength & softness:

Filament core provides durability; spun wrap offers softness and reduced fabric wear.

Soft seam finish:

Outer fibers cushion the seam, ideal for next-to-skin garments and high-touch textiles.

High load capability:

Engineered for heavy materials — denim, upholstery, and mattresses.

Color retention:

Resistant to wash, light, and abrasion, retaining hue through use.

Machine-friendly:

Spun outer with lubricated polyester materials—minimizes heat, friction, and breakage.

Wide shade selection:

500+ stocked colors options for bespoke needs.

Typical applications

Poly‑Poly corespun threads are widely trusted in both consumer-facing and industrial end-uses:

Sewing operations

Coverstitch

Overlock

Lockstitch

Flatlock

Multi‑needle industrial machines

Denim & Casual Apparel

Durable seams with soft finish for frequent-wear garments.

Intimate Apparel & Furnishings

Comfortable seams in bras, bed linens, duvet covers, and curtains.

Upholstery

Strong stitching and cushioned finish for furniture and automotive interiors.

Bedding & Mattresses

Excellent for quilting, sealing, and edge sewing tasks.

Home Textiles

for towels, draperies, and cushions needing aesthetic quality with strength.

Decorative Stitching

Subtle yet visible seam lines on denim accents or soft furnishings.

Product Properties

Property Details
Composition Polyester staple wrap over continuous polyester filament core
Denier range Multiple options tailored to application — custom on request
Color range 500+ stocked hues + fluorescent/contrast options available
Softness & abrasion Soft outer finish minimizes fabric wear and pleasant seam feel
Tensile strength High — filament core supports heavier stitch demands
Elongation Moderate — balances flexibility and seam retention
Machine compatibility Low-friction and lubricant-optimized for high-speed sewing
Packaging formats Available in cones, reels, and customized labeling/packaging options

Manufacturing Excellence

Our Poly‑Poly corespun threads are manufactured with meticulous attention to detail:

Filament winding and spun wrap balancing

ensure core stability, strong fiber adhesion, and uniform thread construction.

Specialized finishing treatments

add micromolecular lubrication, reducing thread friction and preventing lint buildup, ideal for high-speed stitching environments.

ISO 9001:2015 certified processes

ensure that every cone meets international safety, sustainability, and export-readiness standards.

Why choose Mahalaxmi poly‑poly threads