What private label means for containers
For a brand owner, a DTC brand or a marketplace seller, private label means the customer sees your brand and not the plant's. For containers the brand can sit in five places: on a paper sleeve or band, on a label, printed on the lid or body, embossed in the plastic, and on the retail box or shipping carton. Each place has its own print method, minimum, lead time and effect on the food contact file. A good private label plan uses the lightest option that does the job and moves heavier only when volume justifies it.
The container underneath is usually a stock item from a partner plant: a 750 ml PP box at 170x115x51 mm and 19.6 g, a three-compartment PP tray at 218x188x42 mm, or a kraft bakery box at 190x85x35 mm. Starting from a stock item keeps tooling out of the first program and lets the brand test the range before committing to a custom footprint.
Option one: sleeves and bands
A printed paper sleeve slides over a closed container and carries the brand, the product name, a barcode and any usage notes. It is the most flexible option: the container stays on a stock mold, and the sleeve comes from a printing plant, often in the Longgang cluster near Wenzhou. Sleeves do not touch the food, which keeps them outside most food contact testing, although the board and inks should still suit food packaging use. Printed paper items typically start at 5,000-10,000 pieces per design, confirmed in writing per program.
Option two: labels
A self-adhesive label on the lid is the fastest route for a small first order. It suits meal prep brands, delis and marketplace kits. The watch points are adhesion on PP, which has a low surface energy, and behaviour in the fridge, freezer and microwave. Labels are tested on the actual lid in a cold and condensation check, and a label is never placed where the supplier marking says the lid must be vented or removed for heating.
Option three: printing on the lid or body
Printing directly on the plastic gives the cleanest retail look. Flat lids take offset or screen printing; round cups can take a dry offset wrap. Typical reference ranges are 10,000-50,000 pieces per item, confirmed in writing per program. Two points matter for food contact. First, inks on the outside of a food container are still part of the article, so the supplier declaration and any migration report should cover the printed item, not only the unprinted resin. Second, print adds a step, so print adhesion and rub resistance belong in the inspection plan. See printing and labeling for methods.
Option four: embossing and in-mold features
A logo embossed in the lid or base is permanent and adds no ink, but it needs a mold insert or a new tool. Where the plant can add an insert to an existing tool the cost is moderate; where a new tool is needed the program moves to new mold minimums, typically 50,000-100,000 pieces per item, with a sample mold and T1 trial of 25-45 days. In-mold labeling, where a printed film is fused into the part during molding, is another permanent route for injection molded containers; see in-mold labeling explained.
Option five: retail boxes and shipping cartons
For storage lines such as vacuum containers, organizers or shoe boxes, the retail box is often the main branding surface. It carries the brand, product photos without people, size and capacity, material of each part, care instructions and the barcode. For marketplace sellers the shipping carton also matters: it has to survive a fulfilment centre and carry the labels the channel requires. Box and carton print typically come from paper packaging plants and follow paper box minimums.
The options side by side
| Option | Container stays stock | Typical minimum | Main check |
|---|---|---|---|
| Paper sleeve or band | Yes | 5,000-10,000 per design | Fit on closed container, print proof |
| Lid label | Yes | Per label run | Adhesion in cold and condensation |
| Print on lid or body | Yes | 10,000-50,000 per item | Adhesion, rub, food contact file covers print |
| Embossed logo | Insert or new tool | Up to new mold level | Golden sample approval |
| Retail box or carton | Yes | Paper box minimum per design | Compression, barcode, content accuracy |
What goes on the pack
Private label puts the brand's name on the claims. Every statement on a sleeve, label or box should be supported by a document in the file. Practical rules the desk applies:
- Name the material of each part: PP base, PP lid, PET lid for cold use only, silicone seal.
- State microwave use only per supplier marking, for example lid removed or vented.
- Write food contact as compliance per supplier declaration or test report, never as an approval by an authority.
- Use the resin identification code that matches the material, such as 5 for PP and 1 for PET.
- Avoid absolute claims; describe sealing as leak-resistant in a standard tilt test, confirmed per order.
- For starch and PP blends, avoid biodegradable or compostable wording unless the exact item is certified to EN 13432 or ASTM D6400.
Documents in the brand name
Retailers and marketplaces increasingly ask for a declaration and test report that match the brand and item name on the pack. The desk arranges for declarations and reports to be issued to the partner plant or to the brand per project, so the names line up. For the US this usually means a declaration to FDA 21 CFR 177.1520 for PP; for the EU a declaration to 1935/2004 and 10/2011 with a migration report. Your test lab or counsel confirms what each market and channel needs. The compliance guide lists the usual requests.
Send the range, the branding places you want and the target market through the quote form. The desk returns the route per item, the minimums from MOQ and lead time and the documents the pack will need.