LK Packaging F20505W – 5×5 Reclosable Poly Bags with Write-On Block, 2 Mil LDPE

LK Packaging F20505W – 5×5 Reclosable Poly Bags with Write-On Block in 2 Mil LDPE

The LK Packaging F20505W is a 5×5 square reclosable seal-top poly bag in 2.0 mil clear LDPE featuring a printed white write-on block on the bag face. LK Packaging’s W-suffix bags add a permanent frosted white panel that accepts permanent marker, ballpoint pen, or grease pencil directly on the bag — eliminating adhesive labels for manual identification of square-format bags in pharmacy, lab, kitting, and retail environments.

What does the W suffix mean on LK Packaging’s 5×5 reclosable bag?

The W designation in LK Packaging’s F20 series indicates a printed white write-on block built into the bag face. LK Packaging applies this frosted white panel during film manufacturing, creating a matte writing surface that accepts ink without smearing and remains legible through repeated handling. The write-on block is a permanent part of the bag film, unlike adhesive labels that can peel, smudge, or fall off during handling.

What applications use LK Packaging’s 5×5 write-on block reclosable bags?

LK Packaging F20505W bags are used by pharmacy compounders to label compound kits, industrial packagers to hand-mark parts sets and hardware assortments, clinical labs to identify square-format specimen or reagent pouches, and retail operations to mark SKUs and prices directly on bag faces for compact square products. Any operation that hand-labels individual bags at the point of fill benefits from LK Packaging’s built-in write-on surface.

How do artisan food producers use LK Packaging write-on bags for batch traceability?

Small-batch food producers use LK Packaging F20505W bags to package candy assortments, nut mixes, and cookie sets with handwritten lot numbers, production dates, and flavor descriptions written directly on the white block. This eliminates label-printing steps for short-run productions and creates a clear traceability record on the bag itself — a practical approach for farmers markets, specialty food retailers, and small-batch direct-to-consumer food businesses.

Are LK Packaging F20505W bags FDA-compliant for food and pharmaceutical contact?

Yes. LK Packaging manufactures the F20505W from FDA-compliant LDPE resin. The write-on block ink is applied to the exterior film surface and does not contact bag contents, maintaining compliance for food and pharmaceutical applications. Confirm applicable food-safety and regulatory requirements for your specific product category and jurisdiction.

How does the LK Packaging F20505W compare to the standard F20505?

The LK Packaging F20505W shares the same 5×5 square dimensions, 2.0 mil LDPE film, and double-track reclosable zipper as the standard F20505, with the addition of the white write-on block on the bag face. The F20505W is the preferred LK Packaging choice for operations requiring manual bag identification without a separate label system. For automated label operations, the standard F20505 provides identical bag performance at a slightly lower per-unit cost.