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Posts by Leslie A Bathie

What is Young’s Modulus?

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.

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Replacing DuraFiber Polyester Yarn

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. 

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Partially Oriented Yarn (POY) and Fully Oriented Yarn (FOY)

 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).

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Materials Science for Industrial Threads and Yarns - Polyester and Nylon 

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,

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Top Processing Cure for Excessive Twist and Torque in Twisted Yarn: Conditioned Heat Setting

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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! 

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How To Check For and Measure Excessive Twist in Yarn and Thread

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There is nothing worse than trying to handle a yarn or thread that snarls and kinks up on you while trying to process it.  I have always been a believer in quantifying conditions and therefore developed a method for measuring the amount of torque remaining in a yarn or thread, with the resulting units of measure being referred to as Twist Balance (TB).

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High Speed Spiral Winding-Measure Yarn Cone Density and Increase Line Speeds

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One of our partners, a small-gauge hose manufacturing plant that runs around the clock, wanted to produce more product in less time. But their solution, to run machines 22% faster, caused our yarn cones to break and blow out. I visited the plant, where I used quantitative measures to determine what parameters may be optimum for even higher angular speeds and therefore greater out-puts.

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Why Is Sewing Thread Lubricated? Four Reasons Explained

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How many reasons can you think of to apply lubrication to thread?

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Leslie A Bathie

VP Technical R&D

Recent Posts

What is Young’s Modulus?

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.

Read more

Older Posts

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. 

Read more

 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).

Read more

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,

Read more
Lead Blog Post Image

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! 

Read more
Lead Blog Post Image

There is nothing worse than trying to handle a yarn or thread that snarls and kinks up on you while trying to process it.  I have always been a believer in quantifying conditions and therefore developed a method for measuring the amount of torque remaining in a yarn or thread, with the resulting units of measure being referred to as Twist Balance (TB).

Read more
Lead Blog Post Image

One of our partners, a small-gauge hose manufacturing plant that runs around the clock, wanted to produce more product in less time. But their solution, to run machines 22% faster, caused our yarn cones to break and blow out. I visited the plant, where I used quantitative measures to determine what parameters may be optimum for even higher angular speeds and therefore greater out-puts.

Read more
Lead Blog Post Image

How many reasons can you think of to apply lubrication to thread?

Read more