Poly Poly Core Spun Yarn

Poly Poly Core Spun Yarn

Poly Poly Core Spun Yarn


Poly Poly Core Spun Yarn

1.What does Core Spun Yarn mean?

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.

Additional Resources

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 processcore 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

5.Breakage of Core Spun Yarn v.s. Spun Poly Yarn:


Core Spun Vs Spun Polyester Yarn – Technical Specifications

Here are some technical specifications of two yarns  from the same company – one Core Spun and the other Spun Poly – to find out some differences between the two.

7.Other details:
8.The specification fo spool

9.Our packing