LK Packaging F20406OPRN – 4×6 Open-Top Poly Bags, 2 Mil Clear LDPE

LK Packaging F20406OPRN – 4×6 Open-Top Poly Bags in 2 Mil Clear LDPE

The LK Packaging F20406OPRN is a 4×6 open-top poly bag made from 2.0 mil clear LDPE — a non-reclosable configuration in the same 4×6 format as the popular F20406 reclosable bag. LK Packaging’s open-top design is suited for applications where a zipper seal is not required, such as one-time-use packaging, heat-seal applications, twist-tie closure, or situations where a bag is loaded and sealed by other means in the packaging line.

What does OPRN mean in LK Packaging’s product naming system?

OPRN designates an open-top (non-reclosable) configuration within LK Packaging’s F20 series. Unlike the standard F20406 which features a double-track zipper closure, the F20406OPRN has an open mouth that can be sealed by heat sealing, twist ties, zip ties, or left open for fill-and-use applications. The open-top format is common in industrial packaging lines and one-time-use consumer applications where a reclosable zipper would add unnecessary cost.

What packaging applications call for LK Packaging open-top 4×6 poly bags?

LK Packaging F20406OPRN bags are used for applications where the bag will be filled and sealed permanently or used only once — such as heat-sealed retail packaging, hardware kit assembly where the bag is taped or stapled shut, medical or laboratory specimen containment that will be heat-sealed after filling, and promotional item bagging where a twist-tie or heat seal completes the package.

How do contract packagers use LK Packaging open-top bags on automated fill lines?

Automated fill-and-seal packaging lines often require open-top bags that can be conveyed, filled, and heat-sealed in a continuous operation. LK Packaging’s F20406OPRN provides the 4×6 format needed for a wide range of products while eliminating the zipper profile that can interfere with some bag-handling and heat-sealing equipment. The 2 mil LDPE film seals cleanly on standard impulse and band sealers.

Are LK Packaging F20406OPRN open-top bags FDA-compliant for food packaging?

Yes. LK Packaging manufactures the F20406OPRN from FDA-compliant 2 mil LDPE resin, making it appropriate for packaging dry food items when combined with an appropriate closure method. Heat sealing is the preferred closure for food applications requiring an airtight seal. Always verify that your specific sealing method and application meet applicable food-safety and labeling requirements.

How does the LK Packaging F20406OPRN compare to the reclosable F20406?

The LK Packaging F20406 and F20406OPRN share the same 4×6 dimensions and 2 mil LDPE film construction. The difference is the closure: the F20406 has a built-in double-track reclosable zipper for repeated open-close use, while the F20406OPRN has an open top for fill-and-seal or one-time-use applications. Choose the F20406OPRN when the end-use packaging process provides its own sealing method and the added cost of a zipper is not justified.