PP Fruit Packaging Liners

PP Fruit Packaging Liners are corrugated polypropylene components used inside agricultural and fruit packaging for layer separation, surface protection, bottom protection, and internal positioning. Designed for cold chain and humid transportation environments, they can be supplied as flat sheets or custom-processed liners to match specific box structures. Finished dimensions, cut-outs, and crease positions can be specified from technical drawings, physical samples, or dimensional data.

Moisture-Resistant Material
PP has low moisture absorption, making the liner suitable for packaging exposed to condensation, wet agricultural handling, and humid cold-storage conditions.
Defined Layer Separation
A liner placed between fruit layers creates a physical separation surface, helping maintain intended spacing and reduce direct contact between packaged produce.
Stiffness with Low Weight
The hollow corrugated structure provides panel stiffness while keeping the sheet lightweight, supporting easier handling, placement, and assembly.
Washable & Reusable Surface
The non-absorbent surface can be wiped or washed when packaging formats require cleaning or sanitization between handling cycles.

Fruit Box Liners
Flat or processed liners can follow the internal dimensions of corrugated or wooden fruit boxes, providing a separation layer between packaged produce and the outer package structure.
Layer Pads
Flat panels positioned between fruit layers help maintain vertical separation and create a stable internal packing arrangement during bulk transport.
Bottom Protection
Cut-to-size panels placed at the base of the package provide a separation layer between the packaged produce and the box bottom.
Internal Dividers
Cut and creased sections can form compartment areas inside the package where individual fruit positioning or controlled spacing is required.

Polypropylene (PP)
The liner uses polypropylene sheet material with low moisture absorption and good chemical stability, supporting applications involving humid handling and routine cleaning.
Corrugated Core
The board consists of two outer flat surfaces connected by internal structural ribs. This hollow flute structure provides panel stiffness while keeping the sheet lightweight.
Processable Surface
The sheet can be cut, creased, and shaped according to specific packaging designs. Surface and structural requirements can be confirmed from production drawings.

Cut-to-Size: Finished length and width can be tailored to the usable internal dimensions of your package according to defined cutting tolerances.
Creasing: Precision crease lines can be positioned for folding side panels, corners, or supporting structures according to liner geometry.
Cut-Outs & Slots: Openings, slots, and shaped sections can be processed where packaging designs require ventilation, drainage, or product access.
Drawing & Sample Matching: Custom structures can be confirmed using technical drawings, physical samples, or dimensional specifications before production.

Package Dimensions: Start with the internal length and width of the container. For folded liners, account for side height and folding allowances when determining the finished dimensions.
Sheet Thickness: Reference thicknesses range from 2 to 12 mm. Selection depends on liner size, fruit weight, pallet stacking height, and required panel rigidity.
Fruit Arrangement: Fruit size, layer count, and compartment spacing determine liner dimensions and crease layouts.
Handling & Storage Conditions: Humidity, condensation risk, cold-storage duration, and transport methods should be considered when selecting the liner structure.

Sheet Extrusion: PP raw materials are processed into corrugated sheets under monitored extrusion parameters to maintain consistent sheet structure and dimensional stability.
Thickness Inspection: Sheet thickness is checked against specified tolerances to maintain batch consistency.
Finished Dimension Check: Finished length, width, slot alignment, and crease locations are verified against approved technical drawings after processing.
Batch Inspection: Processed liners undergo pre-shipment inspections for structural integrity and dimensional accuracy, with records retained for repeat production.

Flat Sheet Packing
Flat PP corrugated sheets can be stacked and protected for transportation before downstream cutting or processing.
Processed Liner Packing
Finished liners can be grouped by specification and packed according to their dimensions and handling requirements.
Order Information
The required specification should include finished dimensions, thickness, quantity, package dimensions and any drawing, sample, crease or cut-out requirements.