Classification and parameters of zipper

1.Nylon zipper: Invisible zipper, double bone zipper, woven zipper, anti-zip zipper, waterproof zipper, etc. 

2. Resin zipper: gold (silver) tooth zipper, transparent zipper, translucent zipper, animal light zipper, bud shot zipper, diamond zipper 3. Metal zipper: aluminum tooth zipper, copper tooth zipper (brass, copper, bronze, copper, etc.), black zipper zipper classification 

According to the specifications and the operating process 3#, 4#, 5#, 7#, 8#, 9#... 20# model size is proportional to the size of the zipper teeth specific technical indicators zipper classification 1.3# invisible zipper combination width 4.15+0 .03 Single width 2.65+0.03 Thickness 2.10+0.05mm 
Factors that can easily cause 3# invisible zipper defects: 

Big knife bend; when the inch is fixed, the teeth of the microphone are cut open slightly, which causes the bottom welding to fail. The joints also expose the teeth, so that the upper body is easy to come off; the length of the lead is long; the head is not covered by insurance after painting. 

2.3# nylon zipper combination width 4.15+0.05 single width 2.65+0.03 thickness 2.00+0.05mm 

Head height: 2.05-2.15 Pull head width: 4.2-4.25 

Plated slider: mouth width 4.4mm mouth height 1.9mm 

Painted pull head: mouth width 4.35mm mouth height 1.85mm 

Ordinary straps are suitable for thick fabrics; lace straps are suitable for thin fabrics. 

Ordinary top stop: Advantages: High output (adjustable speed); Disadvantages: The top stop sometimes does not pull the root U-shaped top stop: Advantages: The top stop can be pulled to the root, applicable to the garment that requires pulling to the root; Disadvantage: Low output, 4000 bars/8 hours.