Who is the "queen" of the plastic film industry?
Jan 23,2025
BOPP is known as the packaging queen in the plastic film industry and plays a pivotal role in the plastic flexible packaging industry. Since the late 1970s, the categories of BOPP have also been continuously enriched, adding luster to the plastic world.
Today we talk about the more common BOPP product classification light film, extinction film, pearlescent film
Light film: BOPP ordinary film, also known as light film, is the largest amount of BOPP products. The light film itself is a waterproof plastic film, and through the coating film, the surface of the label material that is not waterproof can be turned into waterproof; The light film makes the surface of the label stickers more bright, more high-end and attractive; The light film protects the printed ink/content, making the label surface scratch-resistant and more durable. Therefore, light film is widely used in all kinds of printing, food, goods packaging.
Features:
1. The light film has the characteristics of waterproof;
2. The light film makes the surface of the label bright;
3. Light film can protect the printed content.
Purpose:
1. Printed articles;
2. Packaging of food and articles.
Matte film: also known as matte film, mainly through the absorption and scattering of light to achieve the effect of extinction, generally can improve the quality of the printed appearance, but the price is relatively high, and there are fewer domestic manufacturers, so it is often used in boxed food or high-end packaging. The matting film often has no heat sealing layer, so it is used in combination with other films (such as CPP, BOPET).
Features:
1. Can make the film show matte effect;
2. The price is relatively high;
3. No heat sealing layer.
Purpose:
1. Boxed video;
2. High-end packaging.
Pearlized film: more than 3 layers of co-extruded stretch film, the surface will generally have a heat sealing layer, common such as chopsticks bag, often the pearlized film has its own heat sealing layer heat sealing, so there will be a hot sealing section. The density of the pearlescent film is mostly controlled below 0.7, which is conducive to cost saving; And the common pearlescent film presents a white, opaque pearlescent effect, has a certain ability to block light, and has a protective effect on products that need to avoid light. Of course, pearlescent film is also often combined with other film used in food and daily necessities, such as ice cream, chocolate packaging and beverage bottle labels.
Features:
1. The surface generally has a heat sealing layer;
2. The density is mostly below 0.7;
3. White, translucent pearlescent effect;
4. Has a certain ability to block light.
Purpose:
1. Food packaging;
2. Beverage bottle label.
Advantages and disadvantages of BOPP film
Advantages:
BOPP film is colorless, tasteless, non-toxic, and has the advantages of high tensile strength, impact strength, rigidity, toughness and good transparency. Corona treatment is required for BOPP films before gluing or printing. After corona treatment, the film has a good printing adaptability, can be color printing and get a beautiful appearance effect, so it is commonly used as the surface material of composite film.
Weaknesses:
BOPP film also has shortcomings, such as easy to accumulate static electricity, heat sealing performance is poor.
The initiation tear strength of BOPP film is increased after stretching, but the secondary tear strength is very low, so the two ends of the film can not leave any incision, otherwise the film is easy to tear during printing and composite.
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