Client Packaging Projects: From Sampling to DDP Delivery

Real custom packaging produced for jewelry, cosmetics, electronics, food and e-commerce brands — see what our factory makes for clients worldwide.

20+ years of packaging printing expertise
5,000 m² factory with Heidelberg Speedmaster CD102 5-color offset presses
ISO 9001 / FSC / SEDEX / RoHS certified
ΔE≤2 color accuracy on every batch
500 pcs MOQ with 3-8 day sampling

Every project on this page started as a real purchase order in our Dongguan factory, not as a stock photo. We publish the ones where something broke first — a fold that cracked, a carton that sprang open, colour that drifted across a long run. Each case is written in the same order: the client type and what failed on the line, the root cause we traced in the material or the die, the exact parameter changes we made, and the measured result after the fix.

The figures come from our own production reviews: press sheets, QC logs and the sample library kept for every order. Client names stay confidential, so cases are described by product type, board grade, structure and quantity. If your project resembles one of them, quote the case number in your enquiry and we will start from the parameters that already worked.

What we produce for client brands

Six core product lines, each customized per client artwork, structure and finish — hover any card to see the open view.

Color box closed state homepage product display Zhengyang Packaging Dongguan China

Color box closed state homepage product display Zhengyang Packaging Dongguan China - Open View

Hot Customizing

Folding Carton Boxes

Paper folding boxes for cosmetics, food, electronics

Gift box closed state homepage product display Zhengyang Packaging Dongguan China

Gift box closed state homepage product display Zhengyang Packaging Dongguan China - Open View

Hot Customizing

Rigid Gift Boxes

Luxury boxes including lid-top, magnetic closure for jewelry & gifts

Paper bag closed state shopping bag front view Zhengyang Packaging Dongguan China

Paper bag closed state shopping bag front view Zhengyang Packaging Dongguan China - Open View

Hot Customizing

Paper Shopping Bags

Paper bags for retail, apparel, gifts

Greeting card closed state folded paper card front Zhengyang Packaging Dongguan China

Greeting card closed state folded paper card front Zhengyang Packaging Dongguan China - Open View

Customizing

Greeting Cards

Gift cards and holiday cards for special occasions

Hang tag closed state clothing tag front view Zhengyang Packaging Dongguan China

Hang tag closed state clothing tag front view Zhengyang Packaging Dongguan China - Open View

Hot Customizing

Hang Tags

Paper tags for clothing, accessories

Jewelry display card closed state necklace earring ring card front view Zhengyang Packaging Dongguan China

Jewelry display card closed state necklace earring ring card front view Zhengyang Packaging Dongguan China - Open View

Customizing

Jewelry Display Cards

Necklace, earring and ring display cards for jewelry merchandising

Three production problems, and the parameters that fixed them

Real technical post-mortems from our sample room and press floor — problem, root cause, solution, measured result.

One-piece folding e-commerce shipping mailer box assembled on our sample bench, the same mailer structure used in case 1

Case 1 — Premium cosmetics mailer: cracked corners at 14.2%

Client type: Premium beauty brand gift-set mailer: 250 gsm white-lined grey board facing paper laminated over E-flute corrugated board.
The problem: When the three-ply side wall was folded through a full 180°, the facing paper and the ink layer cracked open and exposed the corrugated fibres underneath. 14.2% of the run was rejected. The lid also sprang back and would not self-lock, and the crease lines delaminated during folding.
Root cause: Three measurable causes: the crease line was too narrow to crush the flute peaks, so the board had nowhere to go at the fold; the crease ran with the flute direction, which makes the board stiffer across the bend; and winter workshop humidity sat at only about 35% RH, dropping board moisture below 6% so the fibres turned brittle before they ever reached the die-cutter.
How we solved it: The single crease line became twin crease lines set 2.0 mm apart. The creasing rule was changed to a 6 pt rounded rule and the crease channel was widened to 4.0 mm. Before die-cutting, board is conditioned with a water spray so the workshop holds 55%–65% RH and moisture returns to 8%–10%.

Delivery result

Corner cracking fell from 14.2% to 0%. Fold resistance dropped 55%, and packers now close and self-lock the mailer by hand with no tools or jigs.

14.2% → 0% corner cracking
−55% fold resistance
Hand self-lock, no tools

Die-cut structure diagram of the one-piece folding carton from case 2, showing the fold lines and panel layout on the die

Case 2 — Consumer electronics one-piece carton: a crease set for the wrong board

Client type: Consumer electronics outer carton: one-piece folding box with auto-lock base and an integrated inner tray, folded from 350 gsm one-side coated white-lined grey board 0.46 mm thick plus 18 μm matte BOPP film.
The problem: On the automatic gluing line, the 180° main crease demanded so much torque that the robot arms slipped and the blank stalled. 18.5% of the run was rejected. Creases sprang back badly, micro-cracks appeared between the film and the paper fibres, and the lid opened on its own by 15°–20°.
Root cause: The die was still set to the parameters used for 250 gsm card stock — a 0.71 mm creasing rule with a 1.30 mm channel — which is simply too narrow for board 0.46 mm thick. On top of that, the main crease ran parallel to the paper grain in the machine direction, which raises bending resistance by nearly 40%, and the BOPP film was never pre-broken before the fold.
How we solved it: Creasing rule 0.71 → 1.05 mm (3 pt); crease channel 1.30 → 1.50 mm with a 0.50 mm channel depth. The sheet was re-imposed so the main crease runs parallel to the cross direction, cutting bending resistance by a further 35%. A 180° pre-fold wheel was added ahead of the gluer, and the inner corner and hidden creases were converted to half-cut perforations with a 1:1 depth release.

Delivery result

Validated across a 50,000-piece production run: rejects fell from 18.5% to 0.2%, bending force dropped from 4.2 to 1.6 N·cm, lid spring-back was held within 3°, edge and film cracking came in at 0%, and box corners kept a true 90° angle.

18.5% → 0.2% rejects
4.2 → 1.6 N·cm bending force
Spring-back within 3°
90° corners · 0% film cracking

Printed cosmetic and makeup cartons from the cosmetics carton production run described in case 3

Case 3 — 100,000-piece cosmetics carton: holding ΔE within 2.0

Client type: Cosmetics brand ordering 100,000 printed makeup cartons to one design, one ink set and one delivery date.
The problem: A 100,000-piece run has to look like a single carton. Colour is the specification most likely to be questioned when the pallets are opened at the buyer warehouse, so it has to be measured rather than judged by eye.
Root cause: Colour consistency at this volume is a colour management question rather than a press question. It is held by instrument measurement, not by the operator eye: an X-Rite spectrophotometer read under D65 illumination and recalibrated every day against a standard colour patch.
How we solved it: The batch ran under our standard colour protocol — X-Rite spectrophotometer measurement under D65 illumination, instruments recalibrated daily with a standard colour patch, and every batch checked against the signed and approved proof before release.

Delivery result

Colour deviation across the whole 100,000-piece batch was held within ΔE 2.0.

100,000 pcs in one batch
ΔE ≤ 2.0 across the batch

From enquiry to DDP delivery in five steps

The same order flow every project on this page followed — with the published lead times attached to each stage.

1. Enquiry and quotation

Send product type, dimensions, quantity, finishing and target market. We reply within 24 hours and issue a formal quotation within 1–3 business days.
2. Sampling and approval

Standard structures are sampled in 3–8 days. Nothing goes to bulk until you approve the sample in writing.
3. Deposit and scheduling

A custom order is scheduled once the agreed deposit is received. Lead time starts from the later of deposit payment or sample approval.
4. Mass production

Regular orders run 7–15 working days, with IQC, first-article, in-process and AQL checks recorded at every stage.
5. Balance and shipment

Balance is settled before shipment, then we ship FOB, CIF or DDP door-to-door. On-time shipment rate: 100%.

Pre-shipment verification: five checkpoints before your carton is sealed

These are the five records we keep for every order — ask for them with your shipping documents.

IQC — incoming material inspection

Paper and board are checked for GSM, caliper, shade and surface tension before the stock is released to the press.
First-article inspection

The first 50 pieces of every production batch are inspected in full before the run continues.
In-process patrol

Every 500 sheets are pulled and checked against the colour bar and for registration accuracy.
Finished-goods sampling

Sampled to ISO 2859-1 general inspection level II at AQL 1.0 or 2.5, whichever the customer specifies.
Packaging audit

Carton weight, labels and shipping marks are verified against the packing list before the pallets are sealed.