8 Standards For High Quality PE Film You Should Know - EuroPlas

Welcome to our in-depth exploration of polyethylene (PE) film, a crucial material in the packaging industry that offers protection and efficiency for a wide range of products. If you’re a manufacturer or business owner looking to safeguard your goods during transport or storage, understanding the nuances of PE film is essential. In this article, we will break down the eight key criteria that define safe and high-quality PE film, addressing common pain points such as durability, flexibility, and moisture resistance. Whether you are struggling with packaging failures or seeking to enhance your operational efficiency, this guide will equip you with the knowledge you need to make informed decisions. Let’s dive in and discover how to choose the best PE film for your needs!

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PE film - a crucial material in the packaging industry

1. Overview Of PE Film

Polyethylene (PE) film is a highly versatile material that has become indispensable in various industries due to its remarkable ability to protect goods from environmental factors. This thin, flexible plastic film is widely utilized for its protective qualities, wrapping a broad spectrum of products ranging from food items to industrial goods. The primary function of PE film is to shield these products from external elements such as moisture, dust, and even physical impact, which can compromise the quality and integrity of the contents.
The popularity of PE film among businesses and individuals alike can be attributed to its cost-effectiveness and ease of use. It presents a practical solution for packaging, reducing expenses while maintaining high efficiency. In the current marketplace, PE films are available in a diverse range of options, differing in terms of cost, quality, and specific applications. However, selecting the right film is crucial, as substandard products can significantly undermine the protective function of the film, leading to increased risk of damage and spoilage during transportation.
Read more: Common problems during PE film blowing process

2. Eight Criterias For Safe And High Quality PE Film

For those seeking reliable and durable PE film solutions, understanding the key criteria that define high-quality PE film is essential. Evaluating these criteria ensures that the film will meet the rigorous demands of various applications, providing peace of mind and reliable protection.

2.1. Tensile Strength

Tensile strength is a critical measure of a material's ability to withstand tension without breaking. High-quality PE films exhibit a tensile strength value exceeding 400 kp/cm², which signifies the material's capacity to endure significant stretching forces. This attribute is particularly important for packaging applications where the film must maintain its integrity under stress.
Achieving such durability is dependent on manufacturing processes that utilize unadulterated, pure plastic particles. This ensures that the film retains its strength and flexibility without succumbing to the stressors it might encounter during shipping and handling.

2.2. Tear Strength

Tear strength measures the film's resistance to tearing, which is a vital property in applications where the film is subjected to sharp or abrupt forces. Packaging solutions vary in their tear strength requirements based on their intended use. For instance, while potato chip bags benefit from low tear strength to facilitate easy opening, PE films used in industrial settings demand a higher tear strength. This ensures that the packaging remains intact during long-haul transportation, effectively safeguarding the goods within.

2.3. Resistance To Impact

PE film can be used to protect the goods

The ability of PE film to resist impact is paramount, particularly when it is used to package heavy or bulky items. Impact resistance ensures that the film can absorb and withstand sudden forces or shocks without tearing or breaking, thus providing an additional layer of protection for the goods. This property can be tested by evaluating the force required to pierce or break the film when subjected to a controlled impact, providing a reliable measure of the film's durability in real-world scenarios.

2.4. Flexibility

Flexibility is a defining characteristic of high-quality PE films, ensuring that the material can adapt to a variety of packaging requirements. The film must strike a balance between softness and rigidity; too much hardness can impede its use in packaging machinery, while excessive softness can lead to easy tearing. The ideal flexibility allows the film to conform to different shapes and sizes, facilitating a seamless packaging process that enhances productivity and reduces waste.

2.5. Heat Resistance

Heat resistance is an indispensable feature of PE films, as it determines the material's ability to withstand temperature variations without degrading. During both manufacturing and transportation, films are often exposed to high temperatures, which can cause inferior materials to melt or warp. Conversely, low temperatures can make some films brittle, leading to cracking. A film with good heat resistance remains stable and effective across a wide range of temperatures, ensuring consistent performance regardless of environmental conditions.

A PE film with good heat resistance

2.6. Opacity

The aesthetic quality of PE film is often judged by its gloss and opacity. High-quality PE films are characterized by a clear, colorless, and odorless appearance. This transparency is not only visually appealing but also indicative of the purity of the materials used in production. Films that exhibit a yellow tint or milkiness often suggest the use of recycled or impure materials, which can detract from the product's presentation and overall quality.

2.7. Moisture Resistance

Moisture resistance is a critical factor in preserving the contents of the package, especially in humid or damp environments. High moisture resistance prevents the ingress of water vapor, thereby protecting goods from mold, spoilage, and other moisture-related damage. This property is particularly important for packaging sensitive items such as electronics, textiles, or food products, where maintaining dryness is essential to preserving quality and extending shelf life.

2.8. Grease Resistance

PE film can be applied for food packaging applications

For more information, please visit what is pe film.

Grease resistance is another key attribute of PE films, especially for applications involving food packaging. The ability to resist grease prevents oils and fats from penetrating the film, which can otherwise compromise the integrity of the packaging and the quality of the goods. Testing for grease resistance involves assessing how well the film repels oily substances over time, ensuring that it maintains its protective qualities in diverse conditions.

3. Conclusion

In conclusion, understanding these eight criteria is vital for selecting a PE film that meets the highest standards of safety and quality. Each criterion plays a crucial role in determining the film's overall performance, ensuring that it can effectively protect and preserve the goods it encases. By prioritizing these criteria, businesses and consumers alike can make informed decisions, selecting PE films that offer maximum efficiency and reliability in their packaging solutions.

4. About EuroPlas’ PE Products

EuroPlas is a global leader in the production and supply of PE filler masterbatch, a high-quality product designed to enhance the performance of plastic manufacturing. Our PE filler masterbatch is expertly formulated from PE resin, CaCO3 powder, and specialized additives such as processing aids and dispersion agents. This innovative combination not only reduces production costs but also significantly improves various properties of end products, including impact resistance, heat resistance, surface hardness, strength endurance, and ductility.
Our PE filler masterbatch is widely used in applications such as injection molding and blown film, resulting in products like shopping bags and T-shirt bags. In the food packaging industry, it serves as an effective replacement for standard PE resins and is also utilized for producing PP woven bags and laminated films. By offering a more cost-effective option, our filler masterbatch enhances the stiffness, flexibility, and thermal resistance of finished goods.

Europlas - A World's Leading PE Film Manufacturer

PE, whose full name is Polyethylene, is the simplest polymer organic compound and the most widely used polymer material in today's world. PE protection film uses special polyethylene (PE) plastic film as the base material and is divided into high-density polyethylene protection film, medium-density polyethylene, and low-density polyethylene according to different densities.

The biggest advantage of PE protection film is that the protected product is not contaminated, corroded, scratched, or damaged during production, processing, transportation, storage, and use, maintaining the original glossy and bright surface, thereby improving the product's quality and market competitiveness.

PE protection film is widely used, so how to choose a PE protection film becomes a crucial issue. This article will teach you four tips for choosing a PE protection film.

Check the Light Transmittance of the PE Protection Film

This is difficult to identify with the naked eye, so it is best to use optical instruments for measurement. A simpler method is to cut small pieces of PE protection film and stick them one by one in the middle of the computer desktop. Then, open a new blank WORD document on the computer and observe the brightness (professionally called luminance) of areas with and without the film or different film areas of the blank WORD document. The film that appears the brightest is the one with the best transmittance and is the best protection film.

Check the Haze of the PE Protection Film

How to check the haze of the PE protection film? First, turn off the monitor. Follow the same method as above, sticking each protection film one by one. The display screen's color clarity indicates lower haze; the lower the haze, the better the material quality. If you use a black test board, the difference will be more noticeable.

In a slightly dim room, turn on a fluorescent lamp. After removing the upper and lower release films of the PE protection film, hold it between your eyes and the light. Look carefully to see if there is a layer of fog-like substance evenly distributed within the PE protection film. This fog-like substance contributes to haze; the more pronounced it is, the higher the haze and the lower the material quality. Conversely, the less pronounced it is, the better the material quality.

Check the Static Electricity Level of the PE Protection Film

Since LCD monitors are sensitive devices that fear static electricity, the less static electricity, the better when applying the protection film. The testing method involves preparing the PE protection film (either 3-layer or 2-layer), spreading some cigarette ash or tiny paper scraps on a table. Then peel off the top layer of the protection film (this step applies to 3-layer material) and the silicone layer. After peeling off this PE protection film, immediately bring the used layer (silicone side) near the cigarette ash or paper scraps. Observe whether the protection film attracts these substances to its silicone layer. The stronger the attraction, the higher the static electricity generated by the material, indicating poorer quality. Conversely, the lower the static electricity, the better the quality.

Check if the PE Protection Film is Scratch-Resistant

Whether the PE protection film is scratch-resistant is currently a major concern. The scratch-resistant materials on the market are generally similar (2-3H) and perform well, with only a distinction between scratch-resistant and non-scratch-resistant. The testing method involves using a 3H hardness pencil, pressing and sliding it at a 45-degree angle with 500G of force on the PE protection film 10 times. If there are no scratches, the film meets the 3H hardness requirement.

Another simple method is to use a slightly hard metal object or freshly clipped fingernails to scrape the PE protection film with the usual pressure of a stylus. If it easily scratches, it is not scratch-resistant. If there are no scratches, it can be confirmed as scratch-resistant.

Following these four tips can help you select the desired PE protection film when purchasing.

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