Stable Material Inputs for Meal Boxes, Takeaway Cartons & Food Packs
PetiPaper supplies single- and double-side PE-coated paperboard for overseas converters that need to validate stiffness, creasing, die-cutting, folding behavior, coating continuity, and liquid-contact suitability on their own equipment.
- 1S / 2S
- PE Configurations
- 150-350gsm
- Base Paper Range
- 4
- Coating Lines
- Batch
- Traceability Focus
Converting Focus
Material selection should match your carton geometry, fold direction, die design, filling condition, and forming process.
Crease & Fold Evaluation
Test score depth, fold-back behavior, cracking appearance, panel alignment, and spring-back under your actual carton design.
Coating Construction
Confirm which surface requires PE protection, heat-sealing compatibility, print treatment, or reduced moisture exposure for the intended pack.
Important: Final carton performance depends on board construction, PE weight, die and crease design, folding sequence, adhesive or heat-seal process, food type, storage conditions, and machine settings. Representative production testing is recommended before order approval.
Built Around Carton Converting Conditions
The Properties That Influence Finished Food-Box Yield
Paperboard that looks acceptable in a roll may respond differently after printing, die-cutting, creasing, folding, sealing, filling, and transport. A practical specification should address the conditions most relevant to your converting line.
Stiffness & Caliper
Board weight, thickness, fibre structure, PE construction, humidity, and carton geometry can all affect panel rigidity, stackability, and how the pack holds its shape after filling.
Confirm by: agreed grammage, caliper target, sample forming and filled-pack assessment.
Die-Cutting & Edge Quality
Die condition, cutting pressure, board moisture, grain direction, and coating construction may influence cutting cleanliness, dust generation, edge compression, and waste-strip release.
Confirm by: trial die-cutting with your tooling, speed, layout, and waste-removal setup.
Creasing & Fold Recovery
Score width, score depth, fold direction, board bulk, and PE layer placement affect fold appearance, hinge behavior, fold spring-back, and the risk of visible cracking at sharp bends.
Confirm by: repeated folding, corner-forming, visual inspection, and dimensional checks.
PE Coating Continuity
A coating layer is selected to support the intended barrier and conversion requirements. Its practical result can be affected by coating weight, fold stress, edge exposure, filling temperature, and end-use duration.
Confirm by: coating-weight agreement, fold-area observation, and product-specific trials.
Water & Grease Exposure
Resistance requirements differ between dry bakery items, sauced meals, fried foods, chilled products, and hot takeaway applications. Contact time and temperature should be defined early.
Confirm by: end-product filling tests under expected handling and storage conditions.
Surface & Process Compatibility
Printing, lamination, adhesive, heat-sealing, and carton erection requirements should be reviewed alongside the selected coated surface and any corona-treatment needs.
Confirm by: press, adhesive, sealing, and forming trials using your production materials.
Material Selection Guide
Selecting Single- or Double-Side PE
The preferred construction is determined by which surfaces need protection or process functionality. The final choice should be confirmed against carton design, intended food contact, printing plan, sealing method, and real use conditions.
Typical Logic
Often considered where one working surface requires PE protection and the reverse side is intended for printing, gluing, or another converter-defined function.
Often considered where both faces may be exposed to moisture, grease, condensation, or product-contact conditions, subject to the complete pack design.
Carton Applications
May suit selected food cartons where the protected side is clearly defined and the opposite surface supports the planned printing or conversion route.
May suit structures requiring protection on both sides, such as certain folded meal packs, chilled-food packs, or cartons exposed to internal and external moisture.
Conversion Review
Review the uncoated surface for print, adhesive, or handling requirements. Confirm coating orientation relative to the crease and pack interior.
Review both surfaces for printing treatment, fold appearance, sealing or adhesive compatibility, and the effect of the added coating construction on finished-pack behavior.
Specification Inputs
Base paper grade, base grammage, PE side, PE coating weight, roll dimensions, surface-treatment requirement, and intended application.
Base paper grade, base grammage, PE coating weight on each side, side identification, roll dimensions, surface-treatment requirement, and intended application.
Before Trial Order Approval
Use a Representative Sample to Test the Whole Converting Route
A useful sample should be close to the intended production construction and evaluated on the equipment, tooling, inks, adhesives, sealing conditions, and carton formats that matter to your operation.
-
1
Define the intended carton and processing conditions
Share the pack type, board direction, base paper target, coating construction, food type, contact side, printing process, die format, crease layout, folding method, filling temperature, and destination requirements.
-
2
Review technical feasibility and proposed parameters
PetiPaper reviews whether the requested construction is producible and discusses base grammage, PE weight, coating side, dimensions, roll format, quantity, packaging, documentation, and commercial terms.
-
3
Run the sample through your converting line
Assess print behavior where relevant, die-cutting, creasing, fold appearance, crack visibility, carton erection, glue or heat-seal compatibility, dimensional stability, and waste rate under normal operating settings.
-
4
Evaluate the finished pack in representative use
Where applicable, test the converted carton with the intended food, filling temperature, oil or moisture exposure, holding time, stacking, transport, and customer-handling conditions.
-
Workflow Complete Ready for mass-production approval
Lock the approved specification and reference
Use documented test feedback to agree final material parameters, tolerances, inspection points, packing standard, retained reference sample, and change-control expectations before mass production.
Approved sample and final specification are recorded.
Specification Control
Build Your Order Around Confirmable Roll Details
A complete technical specification reduces ambiguity between the approved sample, production batch, shipment, and receiving inspection. Confirmed values are stated in the order documentation rather than assumed.
Board Construction
Base paper grade, base paper grammage, total target grammage, single- or double-side PE configuration, and PE coating-weight target by side.
Dimensional Requirements
Roll width, width tolerance, roll diameter or length basis, core internal diameter, winding direction, splice requirement, and side identification where relevant.
Conversion Requirements
Intended carton application, grain direction, print or corona-treatment needs, die-cutting and crease considerations, and any stated heat-seal or adhesive process.
Quality & Inspection Basis
Agreed tolerances, visual surface criteria, moisture-control expectations, roll-condition requirements, certificate or report requests, and reference-sample identification.
Packing & Shipment
Moisture-barrier wrapping, edge and core protection, pallet or loading method, container securing, destination port, marks, and documentation requirements.
Compliance Scope
Destination-market requirements, requested food-contact documentation, traceability needs, and certification scope should be reviewed for the specific material and application.
Production Consistency
Batch-Level Control Aligned With the Approved Reference
PetiPaper's manufacturing process focuses on controlled production records and batch traceability for PE-coated paperboard. Checks and documentation are intended to support consistency with the agreed order specification, not to replace the buyer's application validation.
Material & Process Records
Production may be controlled against agreed inputs such as base paper, resin, coating construction, target coating weight, total grammage, moisture-related checks, dimensions, and roll condition.
Batch Identification
Batch numbers and production records support the comparison of shipped material with relevant retained references and agreed inspection information when a technical question arises.
Pre-Shipment Review
Before shipment, agreed goods checks, packing verification, roll protection, labeling, and loading records can be arranged according to the confirmed order requirements.
Controlled Change Discussion
Where a material, process, packing, or specification change is relevant to an approved order, it should be reviewed and documented before shipment rather than treated as an uncommunicated substitution.
For Overseas Food-Packaging Converters
Start With the Carton Structure, Then Lock the Paperboard Specification
Share your food-box format, coating-side requirement, converting conditions, target roll format, destination, and sample-testing plan. PetiPaper can review a producible PE-coated paperboard specification for your trial-order discussion.