What is the reason for the poor sealing of the lid of the water cup?

Today, let’s talk about the reasons for the poor sealing of the lid of the water cup. Of course, the airtightness of the water cup should be done and done well in every water cup, which is the most basic requirement. Then why do some consumers buy water cups with poor sealing performance after a period of time? Some cup lids are not sealed when they leave the factory. What is causing this?

The main reasons for the poor sealing of the lid are as follow:

1.The water-sealing design of the lid is unreasonable. This unreasonable design includes defects in the engineering design, problems in the mold development process, and the problem of substandard production processes.

2.There is deformation in the cup cover and the cup body, causing the cup cover and the cup body to not completely match.

3.Deformation or aging of the silicone ring that provides the sealing function will make the sealing silicone ring unable to achieve the sealing effect.

4.The contained solution is corrosive. If the solution in the cup is highly corrosive, it will also cause poor sealing of the lid.

5.The environment will also cause poor sealing of the lid, but this happens rarely, mainly due to the large air pressure difference between the inside and outside of the cup.

In addition to the above reasons, some are caused by material properties. Materials that have obvious induction changes to temperature can also cause loose sealing. But no matter what the reason is that the sealing is not good, it can be solved by technology.

Poor sealing of the lid of the water cup is as serious as the non-insulation of the thermos. Any water cup factory should fundamentally ensure the sealing performance of the water cup.

Dongguan Commodity Technology Co., Ltd. insists on high-quality production and high-quality management, and strictly ensures that every production link is fully inspected.

At the same time, each batch of products must be sampled and inspected in accordance with the international quality inspection standard AQL1.0, and the sampled products will be sent to a third-party well-known testing agency for comprehensive testing. It is precisely because of the efforts of all the staff of the company for many years that we have cooperated with more than 50 of the world's top 500 companies.

Welcome global buyers of water cups and water bottles to visit our website. We prepare sufficient samples for the global market. Welcome to contact our business specialists. We are willing to serve you wholeheartedly.