In pharmaceutical oral bottles, there are extremely strict testing standards for aluminum-plastic cap products, especially in terms of resealing. Due to the different uses of aluminum-plastic caps, they are divided into two categories: non gas caps and gas caps. For these two types of caps with different uses, there are also different regulations in terms of testing.
When testing aluminum-plastic caps without gas caps, it is necessary to first cut off the anti-theft ring from the oral liquid bottle cap, then seal the cap with a rated torque of not less than 1.2NM, and use a sealing tester for testing. During the testing process, the pressure of the tester needs to be gradually increased to 200kPa, and the pressure needs to be maintained underwater for one minute. During the testing process, it is necessary to observe whether the aluminum-plastic cap is leaking. After this stage is completed, the pressure can be increased to 1207kPa, just like the previous step, which needs to be maintained for one minute. During the process, observe whether the aluminum-plastic cap is detached. While controlling the opening of oral liquid bottle caps reasonably, it is also necessary to pay attention to the sealing performance of the caps. If strict testing is not carried out, there is a possibility of product leakage during transportation due to insufficient torque.
In addition, regarding the testing standards for aluminum-plastic covers, the testing of the sealing performance of aluminum-plastic covers is carried out under a certain torque force of the aluminum cover. This is because the torque force of the aluminum cover is the main factor affecting the sealing performance of the aluminum-plastic cover, and the torque force needs to be controlled within a reasonable range. Excessive torque force of the aluminum cover will bring great difficulties to the opening and locking of the aluminum cover, which will greatly affect its convenience of use. However, if the torque force is too small, it cannot guarantee the sealing performance of the aluminum-plastic cover, laying hidden dangers for potential leakage during product transportation. The current packaging design needs to follow the mainstream of society and provide more convenience to achieve rapid consumption. The convenient opening of oral liquid bottle caps is precisely such a product.