Bookbonding Thread
Description
Core spun thread for Bookbonding
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 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.
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:
6.Specification
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.
