What are polyster wrapped polyster Core spun Threads?

1.Polyster wrapped polyster Core spun threads, are made by wrapping a staple polyester 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.

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

2.The polyster wrpped polyster core spun thread’structural drawing:

 3.Advantagese shows:

 Core Spun Vs Spun Polyester Yarn

1).Evenness

2).Shrinkage:

3.)It can provide higher efficiency of productivity

As can be seen from the specifications, there is a significant difference in strength of the core spun and spun polyester yarns, even though they have been manufactured by the same company. Local spun polyester yarns could have still lower strengths raising the possibilities of increased sewing ruptures after washing.

The wrapper of a corespun thread can be either staple polyester or staple cotton. The wrapper gives the thread a fibrous surface that contributes to:

• A softer “hand” or feel than a 100% continuous filament threads
• A matte finish stitch appearance similar to a spun thread construction

Superior frictional characteristics compared to a continuous filament threads
The Poly wrapper contributes to :
o Superior color fastness, chemical and abrasion resistance
o Higher strength than cotton wrapped corespun threads
o Superior “union dyeing” because of one-step dyeing process

4) washing effects