EVA insert versus paper tray versus flocked wrap

Three different jobs

EVA locates a bottle. A paper tray is converting. Flocked wrap is a surface unless you add a well. Wenzhou Taishan Printing Co., Ltd. treats those as three RFQ lines, not one “premium interior” nickname.

EVA (or similar foam) is a cut or routed cavity that holds the product so it does not rattle. Wall thickness, density, and colour of the foam are specs. A paper tray is folded or wrapped board that creates cells. Flock on a lid-and-base wrap is a tactile finish on paper; it does not locate a bottle until someone cuts a well into a tray or foam.

Catalog photos of lined or flocked heaven-and-earth boxes are structure and wrap references, not SKUs and not a foam grade. If the photo shows a dark well, still send the object size. We will not reverse-engineer a cavity from wrap colour.

• EVA / foam: locate and cushion.
• Paper tray: converting cells, often recyclable with the box story you specify.
• Flock or liner wrap: surface, unless a well is tooled.

Send the product

A cavity needs the object or millimetres. Length, width, height, and any neck or hinge that sticks up. A retail photo with a bottle inside someone else’s box is not a drawing. Food-contact foam is a separate claim — request current documents; we do not invent certificate numbers on this site.

If you cannot ship the bottle, send a dimensioned sketch and say which faces must be tight versus loose. Perfume, spirits, and set trays fail in different ways: too tight and the wrap tears on packing; too loose and the bottle walks in freight.

Confirm on sample with the real product in the well. We do not publish guaranteed days or a stock insert SKU. The sample well you approve is the cavity.

• Object L×W×H and neck.
• Tight locate versus finger-loose lift-out.
• Food-contact: ask for current scans, do not copy a number from a blog.

Drawer boxes

Single- and multi-drawer sets often need a tray per layer. Count SKUs on the RFQ. A double-drawer with two different bottles is two wells, two knives or two foam tools, and two pack methods if the drawers do not share a footprint.

Drawer travel fights a tall EVA wall. If the foam is proud of the drawer, the drawer will not close. If the paper tray is tall, the lid-and-base or book cover that sits over the drawer stack must still clear. Write stack height as well as cavity millimetres.

Do not copy a lid-and-base insert dieline into a drawer without a new sample. The pull direction and the thumb clearance change the well.

Cavity geometry and well walls

EVA wells can be die-cut, water-cut, or routed depending on the shape. A round bottle in a square well needs wall thickness you accept visually. A paper tray well is limited by board caliper and fold; folding gift-box grey board in this plant is typically 1.5–3 mm, but insert trays may use a different sheet — name it.

Heptagon (七菱板) seven-panel outers need a well that follows seven sides if the insert is meant to look built-in. A round EVA dropped into a seven-panel box is a second tool, as the heptagon article says.

Flocked wrap is not foam

Flock, velvet-look wrap, and printed liner paper still run as wrap: print on Heidelberg 8-open, XL-75, or CDX102 after Kodak CTP when the sheet is printed, then lam if specified, then wrap the core. That path does not create a bottle pocket.

If you want flocked walls inside a well, say whether the well is paper tray wrapped in flock, or foam with a flocked face. Those two quotes differ. Photos of a black interior are not a material call.

Book-style and lid-and-base inserts

Book-style cavities sit in the tray; the cover magnet and spine are a different spec. The insert must not fight the magnet close. A foam block that is too tall holds the cover open.

Lid-and-base inserts must leave lid-wall clearance so the lid still feels the way you specified — snug or finger-loose. See the lid-and-base fit article. MDF cores (catalog 1.5–7 mm) change cavity weight and sometimes well method; sample the core you will buy.

What fails when the insert is sampled without the outer

Approve one sample that includes outer and well. A wrap colour on an empty box plus an EVA pouch in another courier is how sets miss. Outer family, insert family, object millimetres — three lines.

• “Premium insert” as one word: EVA, paper tray, and flock are three jobs.
• Foam proud of a drawer wall: will not close.
• Tall foam under a book cover: magnet never meets.
• Tissue or later liner omitted: production looks looser than the empty sample.
• Dark well in a photo as a foam grade: no millimetres, no cavity.