A sustainable packaging programme failed at the second review, not because the pack was wrong but because the file could not show it. The materials, the weights and the verification sat in three emails rather than in one specification.
This guide is part of our Charger Packaging & Sustainability. Read the full topic guide for the decisions that come before and after this step.
Sustainable packaging for chargers: the four documents
The pack specification, the material declarations, the transport verification and the approved proof.
Together they answer the three questions a buyer, a retailer or a marketplace asks: what the pack is made of, what it weighs against the previous version, and whether it still protects the product. The four are short documents, and they are the difference between a claim that can be defended and a description that cannot.
Document 1: the pack specification
Every material in the assembly, named.
The board, the coating, the window, the insert, the ink and the closure are listed with their weights and their sources. The specification is the baseline for any reduction claim, because a claim about weight needs a stated before and after.
Document 2: the material declarations
What the material suppliers state.
Recycled content, fibre sourcing and any chemical restrictions are declared by the suppliers and filed with the specification. A general environmental certificate does not substitute for a declaration about the material in the pack.
Document 3: the transport verification
Whether the lighter pack still protects the product.
The drop and compression test on the packed unit is re-run whenever the board weight, the insert or the closure changes, and the result is recorded. Removing material without that check trades a saving for damage in transit.
Document 4: the approved proof
The production pack, on the production material.
The proof shows the folds, the insert fit, the colour on the actual board and the print position, and its revision is referenced in the pack specification. It is also what a reorder is measured against.
| Document | What it answers | Who provides it | When it is created |
|---|---|---|---|
| Pack specification | What the pack is made of | The brand and the supplier | Before the proof |
| Material declarations | What the suppliers state | The material suppliers | With the specification |
| Transport verification | Whether it still protects | The supplier | After any material change |
| Approved proof | What the pack looks like | Both | Before the run |
Wording that matches the documents
Three examples, and each is checkable.
The pack weight is reduced by a stated figure against the previous revision; the carton is uncoated fibre with no window; the insert is folded from the same board. Each sentence describes the specification rather than claiming an outcome the brand does not control.
Where sustainable packaging programmes go wrong
Three patterns, and all three are filing problems.
A claim published before the declarations arrived; a material change made without re-running the transport test; and a proof approved on a different board from the production run. Each is corrected by the four documents rather than by a new pack.
How the documents reduce cost
Three effects, and the second is the largest.
A named specification prevents reprinting a pack that was already approved; the transport verification prevents damage claims; and the proof revision prevents a reorder being produced on a different board. None of them reduces the unit price, and all of them reduce the cost of a second run.
What a reorder needs
The approved proof with its revision, the pack specification and the material declarations are what a reorder is placed against. Naming those three makes the second run a repeat, and it prevents a substitute board being used on the same design.
Where the documents are checked
A review usually starts with the specification and then asks for the verification and the proof. Filing the four together is what allows the answer to be given in an afternoon rather than in a week of correspondence.
What a review asks for first
The specification, because it names the materials and the weights. The verification and the proof follow, and the declarations answer the content questions. Holding the four together turns a review into an afternoon rather than a week of correspondence.
How the four documents are kept together
The four documents describe one pack, and they are only useful as a set. The specification names the materials, the declarations support them, the verification covers the assembled pack and the proof records the surface the print was approved on.
Keeping them together is what allows the wording to be checked against the pack rather than against a memory of it. A sentence naming a material can be verified from the specification in a minute; a sentence describing an outcome cannot be verified from the file at all.
It also makes a substitution visible. A different board changes the specification, the proof and the transport result, and the three move together rather than one at a time.
A reorder is placed against the same set, which is what turns a second run into a repeat rather than a new project.
FAQ
What documentation supports a sustainable packaging claim?
The pack specification with every material named, the supplier declarations for those materials, the transport verification and the approved proof with its revision. Hold the four as a set, because the specification names the materials, the declarations support them and the verification and proof record the pack that was approved. The four travel together, so a review is answered from one set rather than from separate correspondence.
Does a lighter pack always need a new drop test?
Where the board weight, the insert or the closure changes, the transport performance is re-verified and the result recorded with the specification. The re-verification applies where the board weight, the insert or the closure changes, and the result is recorded with the specification rather than kept separately. The verification is the evidence the wording rests on, so it is kept with the specification rather than in a separate folder.
Can the claim mention the material rather than the outcome?
A material description is checkable, while an outcome claim depends on systems the brand does not control. Naming the material is the safer wording. A material description is checkable from the specification, while an outcome claim depends on collection and processing systems the brand does not control. Ask which material the sentence names, because a sentence naming none of them cannot be checked from the file.
What does a reorder need?
The pack specification, the approved proof with its revision and the material declaration; those three make a reorder a repeat rather than a new project. Naming those three makes the second run a repeat, and it prevents a substitute board or a different insert being used on the same design. Naming them also stops a substitute board being used on the same design, because the difference would appear in the specification.
Next step
Send the pack direction, the claim you intend to make and the quantity to Wecent Group through the contact page. The reply provides the four documents, the wording that matches them and the verification the pack requires. Related reading: OEM and ODM charger manufacturing, charger manufacturing services and charger quality control. External references: EU RoHS Directive, EU REACH Regulation, EU WEEE Directive, EU energy-efficient products, IEC standards and Intertek testing services.