1. Importance of Paper Packaging Internal Valve Port
Paper packaging internal valve port plays a vital role in modern packaging. It not only facilitates the access to the contents, but also ensures the sealing of the packaging to a certain extent and prolongs the shelf life of the product. For different contents, such as liquid, powder, granules, etc., the design of the valve port needs to fully consider its characteristics to ensure the effectiveness and practicality of the packaging.
2. Consideration of liquid contents
When the packaging contents are liquid, the design of the valve port must ensure good sealing to prevent liquid leakage. This requires that the material of the valve port has a certain elasticity and corrosion resistance, and can withstand the pressure and chemical properties of the liquid. At the same time, the opening and closing mechanism of the valve port should be designed to be simple and easy to use, so that users can pour out the liquid without spilling. For example, the valve port of some liquid packaging adopts a rotary or press-type design, which can accurately control the outflow of the liquid to avoid waste.
3. Consideration of powdery contents
For powdery contents, the design of the valve port needs to prevent the powder from flying and getting wet. Usually, the valve port will adopt a special sealing structure, such as a double-layer seal or a moisture-proof film, to ensure that the powder remains dry during storage and transportation. In addition, the size and shape of the valve port also need to be adjusted according to the fineness and fluidity of the powder. If the powder is fine, the valve port should be designed to be smaller to avoid powder clogging; if the powder has poor fluidity, the valve port can be designed to be inclined to facilitate the pouring of the powder.
4. Consideration of granular contents
When the packaging contents are granular, the design of the valve port should consider the size and shape of the particles to ensure that the particles can pass through the valve port smoothly without getting stuck. At the same time, the sealing of the valve port is also very important to prevent the particles from scattering during transportation. The valve ports of some granular packaging will adopt a special filtering structure, which can not only allow the particles to flow out smoothly, but also prevent impurities from entering the packaging. In short, the design of Paper packaging Internal valve port fully considers the characteristics of different contents, and provides safe, convenient and efficient packaging solutions for various products through reasonable material selection, structural design and opening mechanism.
