paperboard folding carton
Resolve specification and comparison questions before a paperboard folding carton inquiry. Open choices that still block a comparable quote sit below. This page is a material and construction check, not an ESG scorecard and not a factory certificate wall.
Barrier
PE coating, aqueous barrier or uncoated recyclable board. Each path needs its own file.
Strength
Paperboard caliper in pt or mm. Burst strength only when the method is named.
Opening
Tuck, auto-bottom, crash-lock or window-patch. A swap is a new construction.
Test files
Migration testing and food-contact papers bound to the named board and ink lot.
Material and process trade-offs
Industry disputes below are selection factors, not a ranking of factories. Paperboard Carton Sourcing does not hold the certificates named in supplier files.
| Choice | When buyers keep it | What must be verified first |
|---|---|---|
| Uncoated or mono-fiber recyclable board | Reporting a simpler recycling path when shelf life does not need a barrier coat | Whether grease, moisture or aroma still requires a PE or aqueous coating. A recyclability claim without the lot file is not evidence. |
| PE-coated or barrier carton | Frozen, chilled or grease-sensitive fills that need a named barrier | Oxygen transmission rate and water vapor transmission rate only if those tests were run on the named structure. Seal initiation temperature applies when a heat-seal coating is specified. |
| Digital print for short runs | High SKU counts and frequent artwork changes that would otherwise buy plates | Color tolerance versus a frozen offset or flexographic printing standard. Digital is not automatically cheaper once quantity rises. |
| Offset or flexographic printing for volume | Stable long runs that need spot-color control | Plate, make-ready and die costs listed outside the piece price. Gravure printing is uncommon on folding cartons and should be named only when a plant actually quotes it. |
| Post-consumer recycled content | A buyer-requested PCR percentage on the board sheet | The lot file, not the grade name. Food-contact and migration testing still attach to that lot. |
Open fields that still block a comparable quote
What to verify before accepting an alternative construction
If a factory offers 16 pt CCNB in place of 18 pt SBS, treat it as a new line. Check fill weight, crease cracking and whether the carton erector still accepts the opening style. If a plant drops a window patch or a PE coat to lower the piece figure, the fill, barrier and display intent have changed. Neck finish is not a carton field; it belongs only when this carton is a secondary pack around a bottle whose finish you already named.
Rewind specification likewise belongs to label rolls, not to a folding carton. If a brief mixes those terms, this desk will split them before factories see the request. Limitations: no published savings percentage, no site-wide FSC or food-contact badge, and no implied US filling capacity. Continue to inquiry options or send the requirement.
Close the open specification fields
Send the named board, opening style, quantity unit and destination. Optional budget and preference merge into the existing requirement field when JavaScript is on.