Why is Biaxially Oriented Polypropylene Film so popular in food packaging?

1. Production process and structural characteristics of BOPP film
The production process of Biaxially Oriented Polypropylene Film is to co-extrude polypropylene (PP) particles into film sheets, and then use longitudinal and transverse biaxial stretching to effectively arrange the polypropylene molecular chains in two directions.

The biaxial stretching process not only improves the tensile strength and heat resistance of Biaxially Oriented Polypropylene Film, but also enhances its puncture resistance and tear resistance, so that BOPP film can withstand external pressure and impact during packaging and ensure food safety.

Biaxially Oriented Polypropylene Film has natural high transparency and gloss, which enables it to well display the appearance of food and enhance the market appeal of the product. At the same time, this excellent visual effect also provides a better surface for printing, making the packaging design more colorful and vivid.

2. Airtightness and preservation performance of BOPP film
In food packaging, maintaining the freshness of food and extending its shelf life are one of the most critical requirements. Biaxially Oriented Polypropylene Film is particularly outstanding in these aspects due to its excellent air tightness and moisture resistance.

The air tightness and barrier properties of Biaxially Oriented Polypropylene Film enable it to effectively block air, moisture and external pollutants from entering the packaging, preventing food from getting damp, oxidized and contaminated, and maintaining its fresh taste and nutrients. This is especially important for dry goods, candies, snacks, ready-to-eat foods, etc., which can extend the shelf life of food and ensure that food quality is not affected by environmental factors.

Because Biaxially Oriented Polypropylene Film can provide an effective gas barrier, especially in terms of oxygen and water vapor barrier capabilities, it helps prevent food from deteriorating due to oxidation. For perishable foods, the preservation effect of BOPP film can delay food deterioration, thereby increasing the shelf life of food and reducing food waste.

3. Abrasion resistance and strength of Biaxially Oriented Polypropylene Film
Food packaging usually needs to withstand multiple pressures such as transportation, storage and shelf display. Therefore, the abrasion resistance and strength of packaging materials are important factors in evaluating their applicability. Biaxially Oriented Polypropylene Film can maintain stability during long-term transportation due to its strength and toughness.

Biaxially Oriented Polypropylene Film has excellent wear resistance, which can effectively prevent scratches and damage on the packaging surface due to friction. During long-term transportation and display, the surface of BOPP film can remain intact, ensuring the neatness and beauty of the packaging.

Due to the biaxially stretched process of Biaxially Oriented Polypropylene Film, its mechanical strength is much higher than that of general plastic films. Therefore, when facing external pressure, BOPP film is not easy to break or deform, which enables it to provide better protection for food, especially when it is subjected to greater impact.

4. Environmental protection of Biaxially Oriented Polypropylene Film
With the improvement of environmental awareness, the environmental protection of food packaging materials has become a focus of increasing attention for consumers and enterprises. Biaxially Oriented Polypropylene Film not only has excellent packaging performance, but also has recyclability and low environmental burden, which meets the environmental protection requirements of the modern packaging industry.

BOPP film is made of polypropylene material, which is a recyclable plastic. Compared with other plastic materials, the recycling process of BOPP film is simpler and more environmentally friendly. With the promotion of the concept of green packaging, BOPP film has become one of the sustainable packaging materials with its excellent environmental performance.

V. Versatility and customization of BOPP film
The versatility of BOPP film is also one of the important reasons why it is popular in food packaging. BOPP film can not only provide basic packaging functions, but also be customized through coating, printing and other methods to meet the needs of different food packaging.

The surface of BOPP film can be coated with coatings with different functions, such as anti-ultraviolet coating, oil-proof coating, etc., to meet the packaging needs of specific foods. At the same time, BOPP film has excellent printing suitability, and can achieve complex packaging design through flexographic printing, gravure printing and other methods, enhance the visual effect of food packaging, and attract consumers' attention.

Based on customer needs, the thickness, size, surface treatment, etc. of BOPP film can be customized to meet the requirements of different food packaging.