Y tooth zipper is a new type of zipper produced by Yixin Company. Many people find it very annoying how to identify the quality of Y tooth zipper. For consumers, we have to understand its quality standards. How to distinguish the quality of y tooth zipper without knowing it? Does this mean that you know the product?

In fact, the identification method of y tooth zipper only needs to follow the following points to make it clear.

1. The entire zipper parts are complete, the chain teeth are arranged neatly, and there must be no missing teeth or bad teeth.

2. There is no obvious deflection of the lower stop of the zipper. When opening and closing, there must be no phenomenon that the slider catches the upper stop and the lower stop.

3. Open-end zippers (including double open-end zippers) are easy to insert and pull out and start; strengthen the adhesion of the adhesive tape and the cloth tape, neat and tidy.

4. The decorative layer on the surface of the slider is firm, uniform and free of defects such as bubbles and peeling. The cavity is flat and smooth; the slider is flexible and the trademark is clear.

5. The size parameters of the zipper are in accordance with the provisions of 3.3; the length of each hundred meters of the code is 100m ± 0.5m. The color of the chain is bright, and the color difference of the chain in the same batch number reaches the third level specified by gb250. The color difference of the same chain belt should reach the four levels specified in GB250.

6. Color fastness: Color fastness to rubbing: The color fastness of the chain after rubbing resistance test conforms to grade 3~4 of GB251.

7. Color fastness to washing: the color fastness of the chain after washing meets the requirements of grades 3 to 4 of GB250.

8. No more than 3 inner joints per hundred meters of coded chain belt.

9. Special requirements for zippers or other components that do not contain prohibited azo, nickel, and over-checked needles are agreed by both parties.