The toughness of polyethylene is one of its distinctive features. This means that during the manufacturing process, it can withstand large deformations without breaking easily. This property is particularly important in the production of plastic drink cup lids, which need to withstand mechanical stress from filling equipment and impacts during transportation. The high toughness of polyethylene ensures that the cup lid can still maintain its integrity in complex use environments, thereby effectively preventing beverage leakage and ensuring consumers' use experience.
In addition to toughness, polyethylene also exhibits excellent impact resistance. During the filling process, the beverage is usually injected into the cup at a high speed, which creates a strong impact on the cup lid. However, the impact resistance of polyethylene makes it easy to handle this challenge, ensuring that the lid does not deform or break during the filling process. This is essential to maintain the hygiene and quality of your beverages, as any form of leakage can lead to microbial contamination and loss of quality.
Polyethylene also has good high temperature tolerance. During the hot filling process, the temperature of the beverage may reach 85°C or even higher. However, the melting point of polyethylene is much higher than this temperature, so it can withstand such high temperatures without deforming or melting. This makes polyethylene an ideal material for hot-fill beverage lids, as it ensures the hygiene and quality of the beverage is maintained during filling, storage and transportation.
The film-forming properties of polyethylene are also one of the reasons why it is so popular in the production of plastic drink cup lids. Film forming refers to the ability of a material to form a continuous, uniform film. Polyethylene is easy to film, which means it can easily be processed into lids of various shapes and sizes to suit different beverage and consumer needs. In addition, the polyethylene film also has good sealing properties, which can effectively prevent air and microorganisms from entering the cup, thereby extending the shelf life of the drink.
Polyethylene also exhibits resistance to high and low temperatures and environmental stress cracking. This means that polyethylene cup lids maintain their stability and durability whether in high or low temperatures. At the same time, it can also resist cracking caused by environmental stress, ensuring that the cup lid will not break due to external forces during long-term use. This stability is crucial to ensure the hygiene and quality of the beverage, as any form of breakage can lead to contamination and waste of the beverage.