Defect Detection Techniques for Airbag Production Sewing Stages

Table 1

Stitch types in airbag sewing process [14, 23, 24].

Stitch type	Seam class	Seam line	Sewing operation
301 lockstitch	SSa-1/1.01	Straight	Two reinforcements sewing on the lower panel
	LSbj-1/5.30.01	Circular	Vent reinforcements sewing on the lower panel
	SSv-1/5.01	Circular	Generator reinforcements and cover sewing on the lower panel subassembly
401 two threads chainstitch	SSa-1/1.01	Straight	The bonding sewing of the ends of the upper and lower panels
	SSa-1/1.01	Straight	Perimeter sewing
	SSa-1/1.01	Straight	Reinforcement sewing on the bottom panel
	SSa-2/1.01	Straight	The closure sewing