When industrial sewing operations require high thread or yarn tensions, properly designed sewing threads and yarns are critical to continuous production flow. Bonded sewing thread and yarn tends to perform well for critical and challenging sewing conditions often faced by manufacturing companies. We’d like to provide some insight into how bonded thread affects tension in industrial sewing and manufacturing.

It’s important to evaluate whether you should be using a bonded or non-bonded thread in your industrial sewing process. For manufacturers, each type of industrial sewing thread or yarn has its own set of advantages and disadvantages, so let’s take a closer look at each option and which might be right for your application.

When you’re sewing at high speeds, bonded thread prevents snags and breaks that cause production interruptions and create flaws in your products. In many applications, bonded sewing thread is almost always a superior choice. 

Are you using the most modern and advanced yarn and thread? If you haven’t re-evaluated your options lately, it’s a good time to compare the latest yarn and thread materials to see if there is a better choice.

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.

Industrial yarns and threads are made of various fiber types and sizes which aresupplied on a wide range of package sizes with different lengths and yields.  Most products are ordered by the pound, which may leave you wondering, “How long is it?” It’s important to understand the length and yield of your products to help improve your processing efficiency and waste reduction. 

Unlike the September 2018 10 percent tariff, the additional 15 percent announced for shipments on or after May 10th may not have an immediate impact on the price of polyester yarn imports to the U.S.