CyanSunArtwork
Paper Cup Dieline and Artwork Guide
A paper cup is a tapered cone, not a flat label. The artwork must follow the cup dieline, or the logo will distort, the seam will cut through the design and the rim will eat your text.
Why a Cup Is Not a Flat Rectangle
The cup body is a trapezoid that wraps into a cone. The top circumference is larger than the bottom, so a flat rectangle becomes a curved, tapered surface. The seam, rim and bottom add further constraints. This is why a generic label template will not work.
What the Dieline Shows
- Trim: the final cut line of the cup body.
- Bleed: extra image outside the trim so small shifts do not show white.
- Safe area: keep text and logos away from the trim and rim.
- Seam: the glued overlap; avoid key art and small text here.
- Wrap direction: how the artwork repeats around the cup.
File Setup
- PDF/X-1a or PDF/X-4, with fonts embedded or outlined.
- CMYK for process colour; Pantone spots named correctly.
- 300 dpi images at final size; vector logos where possible.
- 3 mm bleed on all sides; keep 3 mm safe area inside the trim.
- No RGB, no low-resolution screenshots, no transparency surprises.
- Overprint only where the printer confirms it.
Text, Logos and Barcodes
Flexo holds detail well, but very small type and thin reverse lines can fill in on a curved surface. Keep body text above roughly 6 pt and avoid hairline strokes. Barcodes need enough contrast and quiet zone; check them at final size on the cup, not on a flat screen.
- Keep the logo inside the safe area, away from the rim and seam.
- Do not stretch or squash the logo to fit the taper.
- Use a vector logo; a 200 px PNG will not hold up.
- Test small text on a printed proof, not only a PDF.
Colour on Kraft and Dark Cups
Kraft and dark cups change how ink reads. Light colours may need a white ink base; dark inks can disappear. Ask for a printed proof on the final stock and check the brand colour under normal light, not only on a monitor.
The Seam and the Wrap
A 360-degree pattern must repeat cleanly across the seam. If the design has a face, a logo lockup or a QR code, keep it away from the seam and the rim. For a two-side design, confirm the wrap direction before artwork approval.
Common File Mistakes
- Using a flat rectangle instead of the tapered dieline.
- Missing bleed or safe area.
- Text too close to the rim or seam.
- RGB artwork or images below 300 dpi.
- Wrong dieline for the cup size or wall.
- Barcode too small or too low-contrast.
- Artwork changes after plates are made.
Proofing
A digital proof confirms layout and colour intent; a printed proof confirms how the ink behaves on the actual board. For brand colours, dark cups and fine detail, ask for a printed sample before the full run. Approve the proof in writing so the production team has a reference.
How to Get the Template
Send the cup size, wall type and quantity. We will send the exact dieline for that cup, plus a short checklist for bleed, safe area and seam. Do not start artwork from a template for a different cup family.
What Each Line on the Dieline Means
A cup dieline is not a rectangle with a curve at the bottom. It is a set of different line types, and each one tells the printer or the die maker something specific. Confusing them is the most common reason artwork looks right on screen and wrong on the cup.
| Line or area | What it marks | What you do with it |
|---|---|---|
| Trim or cut line | Where the blank is cut from the sheet | Never place type or a logo across it |
| Bleed | Extra image outside the trim, usually 3 mm | Extend backgrounds and solid colours into it |
| Safe area | The zone inside the trim that stays visible on the formed cup | Keep text, logos and barcodes inside |
| Glue flap or seam | The overlap where the cup body is sealed | Expect no print, or a broken image, here |
| Bottom disc | The base that is rolled and sealed in | Print is usually omitted or heavily distorted |
| Wrap direction | How the artwork runs around the cup | Check that a centred logo stays centred at the seam |
FAQ
Frequently Asked Questions
Can I use a flat rectangle for cup artwork?
No. A cup is tapered; a flat rectangle will distort the logo and may not meet at the seam.
What bleed do you need?
3 mm is the usual starting point; confirm the exact requirement with the dieline for your cup.
What file format do you need?
PDF/X-1a or PDF/X-4 with embedded fonts, CMYK or named Pantone spots, 300 dpi images and 3 mm bleed.
Can you match Pantone colours?
Yes, within the limits of the board and coating. A printed proof on the final stock is the reliable check.
Where should the logo go?
Inside the safe area, away from the rim and the seam. For a full-wrap design, confirm the repeat and wrap direction.
Can I print on the seam?
Avoid key art on the seam. The seam is a glued overlap and may show a line or a slight colour shift.
Do you charge for artwork checks?
We check the file and flag issues before plates are made. Complex redraws or typesetting may be quoted separately.