Now let's discuss it from two aspects: one is the situation in daily life, and the other is the problems in the processing and production process. 1. In daily life: In our daily life, we often come into contact with zippers, and sometimes we are troubled by them. For example, we may encounter problems such as the zipper on clothes breaking not long after purchase; the pull tab of the zipper on children's clothes falling off; the pin falling off; the tape separating from the pin, etc. In fact, we can avoid similar situations by paying a little attention in our lives: In daily life, the biggest damage to zippers occurs when washing clothes. Usually, we may not pay attention and put clothes with zippers directly into the washing machine. During the washing process, because the clothes are under force, they will keep rolling in the washing machine, and the zippers will constantly rub or collide with the inner wall of the machine. If the zippers are not properly protected at this time, some small parts, such as the box, pin, etc., may get stuck in some parts of the machine (such as the drainage hole of the washing machine). After continuous pulling or twisting, these small parts will eventually be displaced or fall off. In addition, when washing clothes, if there are clothes with zippers among the clothes to be washed, try not to put too many clothes together. Because a large number of clothes will increase the contact force between the zipper and the inner wall of the machine, aggravating the severity of friction. When putting on and taking off clothes, don't be in a hurry. Wait until the pin is inserted into the box, then pull gently. Pulling too fast may not only pinch yourself but also pinch the clothes. If you don't stop pulling after pinching the clothes, it may cause the pull tab to break, and in severe cases, the zipper may come off the track, resulting in damage to the slider. If the slider pinches the clothes, you should stop pulling immediately, then pull the slider back, and slowly pull the clothes out. This can prevent damage to the slider and extend the service life of the zipper. In addition to the above aspects, we should also maintain the zipper at ordinary times, such as applying wax or other maintenance products to protect your zipper. 2. In the production and processing of zippers: In the production and processing process of factories, in order to achieve certain special effects or design requirements for clothes, some processing treatments are carried out after the ready-made clothes are made, among which the "washing" process is the most common. During the washing process, some forces generated inside the washing machine will cause the zipper to open forcefully, and the zipper teeth may be damaged or fall off due to external pulling. Cause of damage: If the zipper is not completely closed before washing, and is subjected to external force during the washing process, the teeth inside the slider will be pulled by the slider. When the external force exceeds the strength it can bear, the teeth will fall off or shift. At this time, the slider will also fall off due to the gap caused by the falling off or shifting of the zipper teeth. So friends who do these processings should pay attention: when we want to wash the ready-made clothes, we must completely close the zipper, pull the slider to the top and fix it. In addition, in order to achieve effects such as whitening the fabric, solid materials such as pumice are put into the washing machine. These small stones roll back and forth during the washing process. Because they are hard solids, they will scratch the parts or surface treatment layer of the zipper, making the parts show the color of the base. So at this time, the slider should be wrapped with cotton cloth and sewn on the fabric to fix it. Therefore, when we wash clothes normally, we should try to pull up the zipper to a closed state, or wrap and fix the slider and the tail of the zipper with cotton cloth during washing. In this way, during the washing process, the slider will not directly contact the inner wall of the machine, there will be no continuous collision, and the service life of the slider will be much longer than that of an unfixed one. After wrapping the bottom of the zipper, the pin or box will not enter some parts inside the washing machine, so that pulling will not occur, and the tape will not be easily separated from the pin.