Poly Poly Core spun yarn , made by wrapping a staple polyester wrapper around a continuous filament bundle of polyester fibers during spinning, and then plying these yarns into a sewing thread. The continuous filament polyester core makes up approximately 65% of the thread construction.
Rawr Denim explains Core Spun Yarn
Core spun, or “poly core”, yarn is created by twisting staple fibers around a central filament core, usually made of polyester for extra strength.
It is 40% to 50% stronger than normally spun yarn of the same weight, and reduces the number of broken stitches when sewing seams and hems on denim.
Diagram of core spun yarn:
★ Our staple fibers is 38MM,it is come from Japan toray brand . ★Our long fiber have 50D,75D,100D etc.All oftension strengtht are over 8 gram per denier
2. This core contributes to:
Higher strength per size (higher tenacity)
Greater uniformity in size, strength and other physical characteristics•
A higher initial modulus or resistance to stretching contributing to better loop formation and reduced seam puckering.
Better ply security – fewer unravel type thread breaks
Superior abrasion resistance & durability
3.The application of core spun yarn:
1. Use for thread factory 2. Use for book binding 3. Use for cotton quilted products.
4. The dyeing process（core spun yarn VS spun polyster yarn）
The Poly wrapper contributes to :
o Superior color fastness, chemical and abrasion resistance
o Higher strength than cotton wrapped core spun threads
o Superior “union dyeing” because of one-step dyeing process
We are one of the professional manufacturers and exporters of functional yarn & thread. Such as core spun cored thread (strong strengh), conductive thread (anti-static), aramid thread (flameproof), luminous thread (glow in the dark) ,Water soluable thread (Dissolve) etc. Who we are What we do Why choose us