1. In normal use, pay attention to whether the zipper has "broken belly", "out of teeth", crookedness and other defects. If these defects occur, they should be repaired in time, and don't pull it hard. If the zipper is loose or out of teeth, you can use a small hammer to gently tap the zipper head a few times to make the upper and lower chain teeth bite tighter, so that the teeth will no longer be out of teeth.
2. Aluminum alloy zippers are more susceptible to corrosion, so they should be kept dry and not damp to prevent the aluminum teeth from generating white oxides, which will cause the zippers to rust over time and affect the use. At the same time, be careful not to be alkaline Contact with acidic substances. Ensure a certain degree of ventilation during storage. Do not store in a sealed or humid environment. Use moisture-proof paper or dehumidifier when necessary. If the zipper gets damp, it becomes astringent when pulled up; at this time, first expose the zipper to the sun, then apply some wax on the zipper's teeth, and then bake it with fire, so that it will be very lubricated when used.
3. When pulling the zipper, you should first align the teeth on both sides, then pinch the zipper head and gently pull it forward along the track, do not pull it too hard, so as to avoid "teeth crooked", "broken belly" and "out of teeth" . If the zipper is astringent and the pulling is not flexible, you can wipe it with a cloth first and then apply a layer of white wax on the "teeth".
4. All kinds of bags, pockets or wallets with zippers should not be overfilled, otherwise the zippers will easily cause "broken belly", "out of teeth", skew and soft cloth.