10 Steps to Mastering Zipper Testing

Zipper is a small machine often used in our daily life and is widely used in garments, bags, shoes and other products. In the manufacturing process, zipper quality is an important safeguard, and zipper testing is the key link to ensure the quality of zippers.

To master the 10 steps of zipper testing:

1. Observe the zipper surface: check the zipper surface for defects such as scratches, dents and oxidation.

2. Pull the zipper teeth: Use your finger to gently pull along the zipper teeth to check if the pull is smooth and the teeth are evenly spaced.

3. Sound test: When pulling the zipper sliding teeth, listen to whether it makes a clear and even sound, and whether there is a stuck sound.

4. Tension test: Sew the zipper with both ends fixed, pull the zipper hard for tension test, and observe whether the tension of the zipper meets the requirements.

5. Bending test: Form a 180 degree fold between the fixed end and the sliding end to check whether the zipper is unobstructed when bending.

6. Friction test: rub the zipper along the fabric several times to check whether the surface of the zipper is damaged, jammed, deformed, etc.

7. Compatibility test: After the zipper is fused with the fabric, check whether the zipper and its accessories will fall off, crack, deform, etc.

8. Heat resistance test: expose the zipper to high temperature environment and observe the performance, deformation and other conditions of the zipper under high temperature.

9. Cold resistance test: expose the zipper to low temperature environment, observe the performance and deformation of the zipper in low temperature.

10. Water resistance test: expose the zipper to water and observe the performance of the zipper in water, whether it will rust, decolorize, etc.

The above 10 steps are the necessary test links in the zipper manufacturing process, which can effectively ensure the quality of the zipper and guarantee the service life and safety of the product. Be sure to strictly implement the above test steps in the zipper manufacturing process, carefully record the test results of each step, and use the test results as important reference data for zipper quality.