Custom Aroma Boxes

Volatile contents and the board that absorbs them

Uncoated paperboard is a sponge for aromatic oil. A single drip from a dropper cap, wiped off and forgotten, will wick through a kraft carton in a week and arrive at the printed face as a dark ring that never dries. The scent goes with it, and it does not stay put: a case of lavender cartons stacked next to a case of peppermint cartons will swap notes in a warehouse.

The answer is a coated inner face on every surface the bottle can touch, including the tray of a set box. We build aroma boxes on SBS or a coated recycled board with the coating to the inside, and we keep kraft on the outside where brands want the natural look.

Sets, and the divider that keeps glass apart

Glass against glass is what breaks a set in transit, not glass against board. The well spacing needs at least 3 mm of board between adjacent bottles, and the tray must sit below the shoulder so the bottles cannot lean and touch at the caps.

• Single 5–15 ml bottle: a snug tuck-end carton, no insert, the bottle held by its own fit.
• Single 30–100 ml bottle: the same carton with a shoulder collar, or the bottle drums against the walls.
• Set of 3–6: a folding carton with a die-cut paperboard platform, each bottle in its own well.
• Set of 6–12: a rigid lift-off lid or drawer box with a slotted tray, sized so caps clear the lid.

A dark bottle in a range of thirty scents

Amber and cobalt glass hide the product entirely, so the carton carries the whole visual difference between a eucalyptus and a bergamot. Ranges of twenty or thirty scents are normal in this category, and the economical way to print them is a shared structure with one panel — usually the front — carrying the variable color and name, and the rest of the carton printed identically across the run.

That lets us gang the shared panels and change only a plate or a digital file per scent. It also means the die is cut once and kept for reorders, so adding a new scent later is a print job rather than a new box, which is how most of the essential oil cartons we make are run.

Dropper caps, reducer caps and what each does to the height

A 10 ml bottle with an orifice reducer and a screw cap stands about 65 mm. The same bottle with a glass pipette dropper stands 75 mm or more, and the rubber bulb is wider than the neck. Cartons are routinely sized to the bottle catalog drawing and then fail to close over the dropper the brand actually fitted. Measure the assembled bottle, cap on, and send us that number, or send us three bottles and we will measure them ourselves.

Pipette droppers loosen in transit and the bulb can be left standing proud of the neck. Allow 2 mm above the assembled height rather than sizing it tight.

Cartons that sit on a shelf and go into a padded mailer

Most aroma boxes are sold twice: on a retail shelf, where they stand in rows and only the front face is seen, and online, where they travel inside a padded mailer or a small shipping carton. The carton should not be asked to survive the post on its own. A 16–18 pt tuck carton is right for the shelf; for direct dispatch, pair it with an outer sized to the carton rather than thickening the carton itself, using the approach in our rigid or folding carton guide.