Ultrasonic vs Stitched vs One-Piece Molded: Non-Woven Bag Construction Compared
Choosing the Right Construction Method Non-woven bag construction determines durability, appearance, and cost-efficiency. Method 1: Ultrasonic Heat-Pressed (Ultrasonic Heat-Pressed) Clean no-sew edges, water-resistant bonds MOQ: 500 pieces per color/design Method 2: Stitched (Stitched) Highest load-bearing strength up to 12 kg, deepest gussets 20 cm MOQ: 100 pieces Method 3: One-Piece Molded (Ultrasonic Heat-Pressed) Zero visible seams, superior insulation MOQ: 300 pieces minimum Load Test Results Ultrasonic: held at 8 kg Stitched: Withstood 12 kg before thread breakage One-piece molded: Withstood 10 kg zero deformation