Centerfold and flat shrink film differ in how they are folded and supplied on the roll. These differences affect how the film feeds, wraps, and seals products on your packaging machine. Here's how to choose the right type for your application.
What Is Centerfold Shrink Film?
Centerfold shrink film is folded in half lengthwise, creating a folded edge and two open edges. It is mainly used with L-bar sealers and side-seal shrink packaging machines, making it suitable for a wide range of product shapes and sizes.
What Is Flat Shrink Film?
Flat shrink film, also known as Single Wound (SW) Film, is supplied as a single, unfolded sheet. It offers flexibility for wrapping and sealing products and is mainly used with high-speed pillow-type shrink packaging machines, making it suitable for continuous packaging operations.
Matching Film Type to Your Sealer
Choosing the right film depends on your packaging machine and product requirements. Centerfold film is commonly used with L-bar and side-seal machines, while flat film (Single Wound Film) is typically used with high-speed pillow-type shrink packaging machines. Always check your machine's specifications before selecting a film format.
Which One Reduces Waste?
Centerfold film can reduce film usage when its folded width matches the product dimensions. Flat film offers flexibility for continuous packaging, especially on high-speed pillow-type machines. The actual material savings depend on product size, film dimensions, and machine setup.
Not Sure Which to Use?
Tell us your product dimensions and packaging machine type, and we'll help you choose the right shrink film format for your application.
