Posts by Service Thread

The video above features untreated continuous multifilament polyester thread on the left, which burns vigorously once ignition temperature is reached, melts, emits black smoke and drips. Untreated aramid yarn on the right burns with difficulty because of high LOI. The flame extinguishes when the heat source is removed.  Aramid does not melt but decomposes showing signs of thermal degradation.

The video above features NeC 8/4 staple spun polyester. The untreated thread on the left burns vigorously once ignition temperature is reached, melts, emits black smoke and drips. The treated thread on the right melts and drips, however, resists combustion and flaming, therefore, smoke is greatly reduced, retardant has done its job.

Ohm values vary for different industrial yarn and threads. Your choice depends on your specific application - do you need conductivity or static dissipation in your process or product? 

To understand twist contraction, think about a ship’s mooring rope. It’s a large, thick rope with thousands of yarns braided and twisted inside. Try to lift a section of the rope, and you’ll find it’s quite heavy.

Every time you drive down the road and see suspended utility cables, you’re observing Young’s Modulus in action. The raised utility wires have a high modulus and are retaining their shape, even under the high pressures of aerial suspension and weather.

DuraFiber Technologies, (formerly Performance Fibers), submitted a WARN notice on July 13, 2017 announcing steps to prepare for the possible closure of their U.S. plants in Salisbury, Shelby, and Winnsboro. 

 Continuous filament polyester can be supplied in many forms but the most common for industrial applications are partially orientated yarn (POY) and fully orientated yarn (FOY).

Modern nylon and polyester filament yarns share some similarities that may allow for cost reductions through materials engineering where polyester replaces nylon.  However, there are some key differences to consider when designing an industrial sewing thread, hose reinforcement yarn, or textile binder or strength member. How are these fibers similar and how do they differ?  The answers can be found in looking at the basic properties, and more importantly the end product application and environmental exposure to the fibers that will make all the difference in product success or failure,

As discussed earlier, there is nothing worse than trying to handle a torque/tension filled lively, kinky yarn or thread.  Each step of a manufacturing process such as twisting, spinning etc. causes tension in fiber, filament, yarn and thread.  Yarns tend to snarl/kink up in order to relax and rid themselves of tension.  Uncontrolled tension and subsequent snarling & kinking are likely to create manufacturing issues for our customers, and we do not want that!