13 Reference Standards You Must Know About PE Roll Bags

There are various types of plastic packaging films, each with its own set of unique properties and characteristics. When selecting the appropriate film, it is crucial to consider their fundamental functions, which include protecting the goods, promoting the products, ensuring compatibility with packaging machinery, and accommodating various applications. In order to meet specific requirements, we have identified 13 reference standards that serve as guidelines in the decision-making process. These standards help ensure that the chosen plastic packaging film fulfills its intended purpose effectively.

 

The most crucial and fundamental role of plastic film as a packaging material is its ability to provide protection to the goods it contains. Without ensuring reliable protection to the packaged goods, the plastic film loses its entire purpose as a packaging material. Plastic films fulfill various protective functions depending on the type of commodity and packaging format. Hence, different goods have distinct requirements concerning the protective functions of plastic packaging films. The protective functions serve as the primary factor in determining the suitability of plastic films for specific products.

 

The mechanical protection function of plastic films plays a crucial role in safeguarding the goods in the package against any potential damage or contamination caused by external substances. This function is directly determined by the mechanical strength indicators of the film, such as tensile strength, tear strength, puncture resistance, and falling impact strength. By ensuring high levels of these indicators, the film can provide effective resistance against any pressure or impact that could harm the packaged goods. Overall, the mechanical protection function is essential for preserving the quality and safety of the products during packaging and transportation.

 

4. Welding strength plays a vital role in ensuring the reliability of plastic film bags in protecting goods. If the welding strength is insufficient, it becomes a weak point in the bag's structure, leading to the rupture of the weld and, consequently, compromising the bag's ability to safeguard the goods.

 

Barrier performance is a critical aspect of plastic film performance, as it determines its ability to hinder the permeation of various gases and substances such as oxygen, carbon dioxide, nitrogen, and aroma, as well as water vapor. Specifically, it primarily focuses on preventing the passage of non-polar gases like oxygen, carbon dioxide, and nitrogen. The quality of the plastic film's display effect is closely linked to its light transmittance, haze, gloss, antistatic property, and printability. Therefore, it is important to ensure that the film has sufficient light transmittance and haze for optimal product presentation.

 

Transmittance and haze are two important factors that determine the visibility and clarity of packaging materials. They play a crucial role in enhancing the display effect of goods. These factors are expressed as percentages and reflect the level of transparency and turbidity, respectively. A higher transmittance value indicates better transparency of the film, while a higher haze value signifies poor clarity of objects viewed through the film. Therefore, it is essential to keep these factors in mind while selecting packaging materials to ensure that the packaged product remains visible and clear.

 

Glossiness is a crucial characteristic of plastic films, as it pertains to their ability to reflect light. It is measured by calculating the percentage of light reflected in the regular reflection direction compared to a standard surface. This measurement helps determine how well a plastic film can exhibit reflectivity when exposed to light.

 

With the continuous progress in the electronics sector, integrated electronic circuit boards are becoming increasingly prevalent. One effective way to safeguard these circuit boards from potential harm caused by static electricity is through the utilization of antistatic film during packaging. By incorporating such film, the risk of damage to the integrated circuits can be significantly minimized.

 

Having good smoothness is essential for the efficient movement of film on the packaging production line. It helps prevent any potential damage caused by excessive resistance during the packaging process. The slipperiness of the film is commonly evaluated based on its friction coefficient. A lower friction coefficient indicates superior slipperiness performance.

 

When considering the high temperature resistance of a film, it is important to take into account factors such as the film's ability to withstand both high and low temperatures. For instance, when it comes to plastic packaging films used for refrigeration, particularly for frozen food, it is crucial to have excellent resistance to low temperatures. On the other hand, plastic packaging films intended for cooking food should possess good resistance to high temperatures. Therefore, it is essential to ensure that the film can withstand the specific temperature requirements of its intended application. Additionally, other factors like high temperature performance should also be taken into consideration to meet industry standards and ensure the film's effectiveness in various temperature conditions.

 

Packaging food or pharmaceutical products requires careful consideration of hygiene and safety. It is crucial to choose a plastic packaging film that meets the necessary health standards and ensures that the packaged goods remain uncontaminated. This means selecting a plastic film that exhibits excellent hygienic performance and adheres to relevant national regulations. By prioritizing hygiene and safety, we can guarantee the integrity of the packaged products and protect consumer well-being.