Great print results begin long before a machine starts running. Understanding the language used by designers, prepress teams, and manufacturers helps you prepare cleaner files, choose the right materials, and avoid preventable delays.
This practical glossary explains 28 essential printing terms in plain professional English. It is especially useful for custom stickers, labels, cards, packaging, and other creator products.
Quick note: Production specifications vary by product and process. Always follow the artwork template and requirements supplied for your specific VANTENZ product.
Label Supply and Orientation
1. Roll Labels
Labels supplied on a continuous web wound around a core. Roll labels are ideal for automatic dispensers, labeling machines, and efficient high-volume application. Core size, roll diameter, winding direction, and the number of labels per roll may all affect equipment compatibility.
2. Unwind Direction
The orientation in which a label comes off the roll when viewed from the printed side. The correct unwind direction depends on how the label will enter a dispenser or applicator. Confirm whether the top, bottom, left, or right edge should lead before production.
3. Sheeted Labels
Individual labels arranged on flat sheets rather than rolls. This format is convenient for hand application, sample packs, short runs, and products that do not require automated labeling equipment.
Materials and Surface Protection
4. Facestock
The printable top layer of a pressure-sensitive label. Common facestocks include coated paper, thermal paper, PET, PVC, PP, and synthetic paper. The best choice depends on appearance, flexibility, durability, moisture exposure, and the surface being labeled.
5. Grammage (GSM)
The mass of paper per square meter, expressed as g/m² or GSM. For the same type of stock, a higher GSM usually indicates a heavier and often thicker sheet. GSM should not be used to compare thickness across very different materials because density and construction also matter.
6. Lamination
A clear film bonded over a printed surface to improve scuff resistance, moisture resistance, and handling durability. Gloss lamination increases shine and color depth, while matte lamination creates a softer, lower-reflection finish.
7. UV Varnish
A liquid coating cured almost instantly with ultraviolet light. It can create a durable gloss finish across the full surface or be applied selectively as spot UV to highlight logos, patterns, or tactile details.
Cutting and Metallic Finishes
8. Die Cutting
The process of cutting printed material into a specified shape with a physical die or digital cutting system. Die cutting makes custom outlines, rounded corners, internal cutouts, and kiss-cut sticker shapes possible.
9. Hot Foil Stamping
A finishing process that transfers metallic or pigmented foil to the surface using a heated die and pressure. Hot foil produces a crisp, premium result and may also create a subtle debossed impression depending on the material and tooling.
10. Cold Foil
A metallic decoration process in which an adhesive is printed in the desired shape, foil is laminated to it, and the adhesive is cured. Cold foil can reproduce fine detail and is commonly used for gold, silver, and holographic effects without a heated stamping die.
Color, Plates, and Ink Behavior
11. CMYK Process Printing
A full-color printing method that combines cyan, magenta, yellow, and black inks as halftone patterns. CMYK reproduces a broad range of colors, but not every RGB screen color can be matched exactly in print.
12. Spot Color
A premixed ink printed as its own color rather than built from CMYK. Spot colors are useful for precise brand colors and specialty inks such as fluorescent, metallic, or opaque white. Pantone references are often used to communicate spot-color targets.
13. UV Printing
A printing process that cures specially formulated ink with ultraviolet light immediately after application. UV printing supports sharp detail, strong surface adhesion, and printing on many non-absorbent materials, including plastics and metallic films.
14. Color Separation
The process of dividing artwork into the individual ink channels or plates needed for production. Standard process artwork is separated into cyan, magenta, yellow, and black; spot colors and specialty layers are separated independently.
15. Plate or Production-Layer Separation
Keeping print artwork separate from post-press instructions such as white ink, varnish, foil, embossing, or cutting. Clear layer names and distinct spot-color swatches help the production team interpret each operation correctly.
16. Registration
The precise alignment of multiple color plates, print passes, or finishing layers. Poor registration can create colored fringes, doubled edges, or blurred details. Small tolerances are normal, so artwork should be designed with the production process in mind.
17. Overprinting
Printing one ink directly over another instead of removing the color underneath. Overprinting can create intentional mixed-color effects and prevent small gaps, but an accidental overprint setting may cause objects to change color or disappear. Always review an overprint preview before submission.
18. Trapping
A controlled overlap between adjacent colors that compensates for normal registration movement. A small spread or choke prevents an unwanted white hairline from appearing where two printed areas meet.
19. Halftone
A pattern of tiny dots used to simulate lighter tints, gradients, and continuous-tone images with a limited number of inks. Dot size, spacing, angle, and screen frequency influence smoothness and visible texture.
Artwork File Preparation
20. Print-Ready PDF and PDF/X
A PDF prepared with the correct page size, color settings, embedded graphics, bleed, and production marks. PDF/X standards are designed for reliable print exchange and reduce problems caused by missing fonts, unsupported transparency, or inconsistent color information.
21. Convert Fonts to Outlines
Changing live text into vector shapes so its appearance no longer depends on the recipient having the same font. Keep an editable master file before outlining, because outlined text cannot be edited like normal type.
22. Resolution
The pixel density of a raster image at its final printed size. For most detailed print artwork, 300 PPI at final size is a reliable target. Enlarging a small image reduces its effective PPI and may make the result look soft or pixelated.
23. Dieline
A vector path that defines the final cut shape, folds, perforations, or internal cutouts. Dielines should normally use a dedicated spot color, remain on a separate layer, and never be flattened into the printable artwork unless instructed.
24. Bleed
Extra artwork extending beyond the intended trim line. Bleed protects the finished piece from accidental white edges caused by normal cutting tolerance. A 3 mm bleed is common, but the required amount depends on the product and supplied template.
Proofing and Production Planning
25. Proofing
Reviewing a digital proof, contract proof, or physical sample before the full production run. A proof is used to check content, positioning, size, construction, and expected color. Different proof types reproduce final materials and finishes with different levels of accuracy.
26. Proof Approval
The customer’s formal confirmation that the proof is ready for production. Before approval, check spelling, dimensions, quantities, color notes, dielines, and finishing instructions carefully. Approved artwork becomes the production reference.
27. Gang-Run Printing
Combining multiple compatible jobs on one larger press sheet or production run. Gang runs improve material utilization and can lower costs for smaller quantities, but they may offer less control over exact color matching and scheduling than a dedicated run.
28. Dedicated Press Run
A production run reserved for one job. It provides greater control over color, substrate, layout, and process adjustments, making it suitable for larger quantities, demanding specifications, or projects that require tighter consistency.
Final Preflight Checklist
- Use the correct product template and final dimensions.
- Set raster images to approximately 300 PPI at final size.
- Include the specified bleed and keep important content inside the safe area.
- Keep dielines, white ink, foil, varnish, and other production layers separate.
- Convert colors intentionally to CMYK or approved spot colors.
- Embed fonts or convert a copy of the text to outlines.
- Review overprint settings, transparency, links, spelling, and quantities.
- Export using the requested PDF/X preset and inspect the final PDF before upload.
Need Help Preparing Your Artwork?
Send your artwork and product requirements to the VANTENZ team before ordering. We can help identify common file issues and clarify the correct setup for custom stickers, cards, and specialty printed products.