Spice jar plastic is prone to cracking at low temperatures due to the plastic becoming brittle. The core of this problem lies in the fact that the physical properties of the plastic material change with temperature.
Small-capacity plastic injection cups are widely used in fast-moving consumer goods, dairy products, and ready-to-eat meals due to their portability, stackability, and good sealing properties. Plastic packaging injection cups need to balance lightweight,
Under high temperature conditions, pigments and resins in plastics are prone to oxidation, leading to color changes.
Plastic packaging screw cap jars, with their advantages of simple structure, controllable cost, and strong functional flexibility, have become one of the mainstream containers.
In today's consumer market, which values experience and transparency, packaging for food and daily necessities has long transcended its function as a mere container, becoming a silent medium of dialogue between brands and consumers.
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.