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CosunPackPackaging Manufacturer

Products

Folding Cartons

Retail-ready paperboard boxes—tuck end, auto-lock, sleeve, and custom structures—finished with lamination, foil, and spot UV. Every item is custom-manufactured to your specification—request a quote with your size, material, and printing requirements.

Straight Tuck End (STE)

Straight Tuck End (STE)

CS-0028
Reverse Tuck End (RTE)

Reverse Tuck End (RTE)

CS-0029
Tuck End Snap Lock Bottom

Tuck End Snap Lock Bottom

CS-0030
Auto Lock Bottom (Crash Bottom)

Auto Lock Bottom (Crash Bottom)

CS-0031
1 2 3 Bottom (Lock Bottom)

1 2 3 Bottom (Lock Bottom)

CS-0032
Seal End Box

Seal End Box

CS-0033
Two Piece Box (Tray & Lid)

Two Piece Box (Tray & Lid)

CS-0034
Sleeve Slipcase

Sleeve Slipcase

CS-0035
Five Panel Hanger Box

Five Panel Hanger Box

CS-0036
Pillow Box

Pillow Box

CS-0037
Gable Box

Gable Box

CS-0038
Window Box

Window Box

CS-0039
Display Box (Pop Up)

Display Box (Pop Up)

CS-0040
Six Corner Beers Tray

Six Corner Beers Tray

CS-0041
Double Wall Tuck Top

Double Wall Tuck Top

CS-0042
Top Load Tray

Top Load Tray

CS-0043
Automatic Bottom Tray

Automatic Bottom Tray

CS-0044

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Category FAQ

Folding Cartons — FAQ

What B2B buyers most often ask before specifying folding cartons — answered from industry references.

What board weight should my carton use?
200–350 gsm covers most retail cartons; heavier 350–450 gsm suits premium or heavier contents. Structure length, shelf display orientation, and machine-filling vs hand-filling all affect the choice — we confirm grammage with the dieline.

Technical references: ECMA Carton Board Codes

Straight tuck, reverse tuck, or auto-lock bottom?
Straight and reverse tuck ends suit light hand-filled goods; auto-lock (crash) bottoms snap into place for heavier fills and faster packing; 1-2-3 lock bottoms are a glue-free middle ground. Pick by fill weight and assembly labor.

Technical references: ECMA Carton Board Codes

Which print process gives the best carton finish?
Offset litho delivers the sharpest fine text and skin tones for long runs; digital suits short runs and versioning. Both accept matte/gloss lamination, soft-touch, foil, and spot UV. We proof colors against Pantone references before printing.

Technical references: ECMA Carton Board Codes · GS1: UPC Barcode Placement Guidelines

Can folding cartons hold food directly?
Yes with food-contact board and low-migration inks — common for bakery, confectionery, and QSR packaging. US and EU each require specific compliance documentation; we align board, ink, and coating to your destination market and food type.

Technical references: FDA: Determining the Regulatory Status of Food Contact Substances · Regulation (EC) No 1935/2004 on materials intended to contact food

How do I avoid barcode scanning problems on cartons?
Keep barcodes off creases, curves, and high-gloss foils; leave quiet zones around the symbol and verify grade with a verifier on printed samples. GS1 placement guidance covers the common failure points we check in pre-production.

Technical references: GS1: UPC Barcode Placement Guidelines

What sustainability options exist for cartons?
FSC-certified board, recycled-content grades, and plastic-free window alternatives are all available. EU PPWR recyclability grading from 2030 favors mono-material fiber cartons — design decisions today can protect future compliance.

Technical references: FSC Chain of Custody · EU Packaging & Packaging Waste Regulation (EU) 2025/40

One Partner for Your Complete Packaging

Source packaging from China with one team, from product-led development to delivery. Share your product or idea, component list, quantity, and destination—we will help define the next steps.

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