As explained by Industrial Print Magazine in their article “Clean Finishing with Welding”, welding is becoming an increasingly popular alternative to sewing for finishing digitally printed fabrics. This method provides a durable, polished seam while eliminating common issues associated with thread stitching, such as thread rot in outdoor applications.

Why Choose Welding Over Sewing:

• Durability and Aesthetics: Welded seams offer a clean, flat bond without disrupting the printed image, making them ideal for large banners and outdoor installations.
• Cost and Material Efficiency: Welding reduces labor and eliminates the need for thread, saving on material costs. Additionally, it doesn’t require folded hems, allowing for a more streamlined use of fabric.
• User-Friendly Technology: Welding machines are generally less dependent on user expertise compared to industrial sewing machines, making them more accessible for operators of varying skill levels.

Types of Welding Technologies:

1. Ultrasonic Welding: Best for lightweight fabrics like polyester. This process melts the material internally through high-frequency vibrations, creating a seamless and fast bond.
2. Hot Air or Hot Wedge Welding: Ideal for heavier fabrics and banners. Heat is applied between fabric layers, leaving the outer surface of the print untouched for a cleaner finish.
3. Impulse Welding: Offers precise temperature control and minimal noise. The machine applies heat directly to the fabric and cools quickly, making it safer for operators.

Applications of Welding in Fabric Finishing:
Welders are designed to handle a variety of tasks, from banners and billboards to silicone edge graphics. Some machines, like the Seamtek 900 AT, allow for multiple seam finishes, including lap welds and open hems. Advanced models even feature automation options for faster production rates, meeting the needs of businesses with high-volume projects.

According to Christina Lefebvre of Matic S.A., modern welders are now equipped with turbo features that cut welding times in half, making them more efficient to match the faster speeds of digital printers.

Click here to learn more about Fairway’s innovative fabric finishing solutions.

Article with all rights reserved, courtesy of industrialprintmagazine.com.