Zipper is a common clothing accessory, its quality and performance directly affect the overall effect and service life of clothing. Therefore, it is necessary to test the zipper, which can help us understand the strength, durability, color fastness and other indicators of the zipper, so as to choose the appropriate type and specification of the zipper, and avoid the zipper from detaching and breaking during use , discoloration and other issues.

There are many methods of zipper testing, and different countries and regions have different standards and specifications. Generally speaking, the zipper test includes the following aspects:

- Horizontal pull strength test: test whether the zipper can keep the teeth engaged under lateral force, and there will be no tooth detachment or yarn tape breakage.

- Top stop strength test: Test whether the zipper can keep the top stop from being moved or damaged when the upper end is stressed, and does not affect the normal movement of the slider.

- Bottom stop strength test: test whether the zipper can keep the bottom stop from being torn or damaged when the lower end is stressed, and does not affect the normal movement of the slider.

- Open end flat pull strength test: test whether the intubation and socket of the open end zipper can resist external force damage without separation or deformation.

- Slider locking strength test: Test whether the self-locking slider can resist external force slipping, without locking failure or internal component damage.

- Pull-tab combination strength test: Test whether the slider and the pull-tab can resist external force separation without breaking or falling off.

- Single tooth displacement strength test: Test whether a single tooth can resist external force displacement without falling off or deforming.

- Durability Test: Tests whether the zipper will continue to function without damage or degradation after repeated reciprocating operations.

- Color fastness test: Test whether the zipper can maintain its original color after washing, dry cleaning, light treatment, etc., without fading or staining.

Through the above test methods, we can conduct a comprehensive evaluation and screening of zippers, so as to improve the quality and appearance of clothing. At the same time, it can also provide reference and basis for the production and improvement of zippers. Therefore, it is necessary for us to test the zipper to ensure its quality and performance.