Knowledge Of Bag Zippers

Paint pulling head: mouth width 4.35mm, mouth height 1.85mm
Ordinary belts are suitable for thick fabrics; Lace ribbons are suitable for thin fabrics.
Ordinary top stop: Advantages: High output (adjustable speed); Disadvantage: Sometimes the upper stop cannot reach the root
U-shaped top stop: Advantages: The top stop can be pulled to the root, suitable for clothing that requires pulling to the root; Disadvantage: Low production, 4000 pieces per 8 hours.
Factors that can easily lead to defective 3 # invisible zippers:
Big knife bend; When fixing the size, there is a slight cut at the joint of the teeth, which causes the welding of the lower stop to not be in place, and the upper stop also exposes the teeth, making it easy for the upper stop to fall off; A leader has its own strengths and weaknesses; After baking paint, the pull head has no insurance.
Combination width 4.15+0.05, single width 2.65+0.03, thickness 2.00+0.05mm
Head opening height: 2.05-2.15 Head opening width: 4.2-4.25