An expert in PVC tarpaulin / PVC film industry since 2002

Introduction and analysis of common specifications of BOPP film

by:LINYANG     2022-08-08
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 end of the 1970s, the varieties of BOPP industry have been continuously enriched, adding luster to our colorful life. The classification of BOPP products is firstly divided into light film, matt film, pearl film, cover light film, aluminized film, tape film, bag making film, heat sealing film, laser film, anti-fog film, etc. We continue to innovate in the improvement of living standards. In the past two years, the coating-free film has gradually entered our field of vision under the environmental requirements. Here we briefly summarize the uses of various common films: Light film: Usually, ordinary light film is mainly used for printing, and is often used for packaging printing. Among them, it is divided into thick film and thin film. Usually, thick film refers to a thickness of more than 25 μ, and thin film refers to a thickness of less than 19 μ. Matte film: Also known as matte film, it is mainly realized by absorbing and scattering light, which can generally improve the grade of printed appearance, but the price is relatively high, and there are few domestic manufacturers, so it is often used in boxed food or high-end products. Used in packaging. Matte films often have no heat sealing layer, so they are often used in combination with other films (such as CPP, BOPET). Pearlescent film: It is mostly a 3-layer co-extruded stretch film, and there is generally a heat-sealing layer on the surface, such as chopsticks bags, often the pearlescent film has its own heat-sealing layer for heat-sealing, so there will be a heat-sealing section. Different from BOPP film, the density of pearl film is mostly controlled below 0.68, which is conducive to saving costs; and common pearl film has a white, opaque pearl effect, has a certain light blocking ability, and protects products that need to be protected from light. effect. Of course, pearlescent film is also often compounded with other films for food and daily necessities, such as ice cream, chocolate packaging and beverage bottle labels. Its white pearlescent effect complements well-designed printing patterns. Covering film: It is understood that the covering film is generally a thin film with a bias of 18μ, and is generally a double-sided corona, so there is an overlap area with the ordinary film in use, and there will be slight differences. It is understood that it is generally not used for Make regular bags. Aluminized film: Everyone is relatively familiar with aluminized film, but BOPET and CPP are commonly used as base materials. At present, domestic BOPP aluminum plating is relatively rare. Especially in recent years, with the price advantage of BOPET, the BOPP aluminum plating market has been affected to a certain extent. . Laser film: It is a transparent BOPP film with a moldable functional layer, which can be molded without pre-coating a molding layer. It can be used for anti-counterfeiting packaging after aluminized or evaporated medium, or combined with cardboard or non-abrasive for cigarettes , medicine, food and other packaging boxes. There are relatively few domestic productions, and they are generally used for high-end commodity anti-counterfeiting, decorative packaging, etc., and have certain requirements for production technology. Tape film and bag-making film are more common. Anti-fog film and coating-free film have been specially introduced in the early stage, so I won’t go into details here. Of course, there are many high-end films such as capacitive films and some customized films for BOPP films. It is expected that in the future, in the environment where the industry is under competitive pressure and the profits of mass products are expected to shrink, the types of BOPP films and new types of films will continue to be further improved. Add motivation.
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