Skip to content

INDUSTRY FIELD GUIDE

Paperboard container data for AI liner and seam evidence

Fiber drums and other paperboard containers can combine a shell, liner and closure from separate sources.

By Fiund · Updated 2026-11-05

NAICS 322219 · Other Paperboard Container Manufacturing

Fiber drums and other paperboard containers can combine a shell, liner and closure from separate sources. FDA explains how to determine the regulatory status of food-contact components. That context supports a task that keeps each component's documented use distinct. FDA food-contact component guidance

Build an original small paper container and fictional component list. Give two liner variants similar appearance but different identifiers. Photograph the shell before and after closure, then ask which liner is supported by the assembly record. Include a closure photograph that hides the seam reference and a supplier declaration covering only one component. The key should avoid extending that declaration to the whole container.

Label shell, liner, seam location, assembly event and the scope of each source document. Evaluate with a different container shape and identifier placement. Score wrong-liner matches, unsupported whole-container claims and observations hidden by closure separately. A second view should resolve only the facts it actually reveals.

Use self-authored records and neutral paper props. Real customer contents, supplier declarations and licensed closure designs need source-specific authority. A contributor proposal should define the assembly-evidence task, expert key and permitted material before additional commercial records or capture are prepared.

Discuss this original manufacturing sample with Fiund

Original Fiund exercise

One seam in the shell, another in the liner

A tabletop paper drum model separates its shell seam from a removable liner seam. No containment test occurs.

Fictional records supplied to the evaluator
RecordSourceWhat it records
D1Component mapOuter shell S1 has seam at clock position 3; liner L1 intended seam at position 9.
D2Image legendClock positions measured from a red mark fixed to the shell.
D3Interior photoLiner seam at position 3; red shell mark visible.
D4Outside photoShell seam also appears at position 3.

Question for the model

What placement difference does the evidence show?

Show the reference answer and checks

The shell seam is where D1 expects it, based on D4. The liner seam appears at 3 instead of the intended 9, based on D2 and D3. These are distinct layers even though their observed seam positions coincide. The photos provide no containment evidence.

  • Reporting a single seam for both parts
  • Using camera angle to invent a second clock reference

Fields to preserve

component_layer
Separates shell and liner features
clock_reference
Anchors seam position to the shell marker
observed_position
Allows layer-specific comparison with the map

Test another case

Rotate the shell between views but retain its red marker; score reference-relative alignment.

No dangerous goods, packaging certifications, leak claims or actual drum construction instructions.

Download this fictional example and answer key (JSON)

Discuss a contribution

Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.

Primary sources and further reading