During the production process, the thread fit between the screw cap and the tank body needs to meet certain precision requirements to ensure good sealing performance.
Low-temperature drop testing is also essential. Plastics become brittle and their impact resistance decreases in low-temperature environments, so it is necessary to ensure that the product still has sufficient drop resistance in low-temperature environmen
In the entire canned food production chain, seal integrity is the core factor determining whether a product can be safely stored and consumed long-term.
The pepper seasoning spice jar is far more than a simple container; it's a miniature preservation device that integrates materials science, sealing engineering, and human-computer interaction.
The extrusion-pulling-blowing process improves transparency and barrier properties through longitudinal stretching, but the stretching ratio needs to be balanced to avoid stress concentration caused by over-orientation.
In the packaging of food, health supplements, condiments, and other daily consumer goods, the sealing performance of the container is directly related to product quality, safety, and shelf life.