BLOG #015: Merchandise Printing Glossary: Terms Every Brand Should Know
Lost in Translation
Most brand managers think printing is simple, send a logo and wait for shirts. Then the first samples arrive with blown‑out colours, fuzzy edges or a design cut off at the hem. The problem isn’t the factory; it’s the language barrier. Screen printers work in a dialect of halftones, bleeds and flash cures. If you don’t speak it, your brief is at best a guess.
Where Prints Go Wrong
Misunderstanding printing terminology is one of the hidden drivers of bad merchandise. Printers rely on precise terms for methods (screen, direct‑to‑garment, direct‑to‑film), colours (PMS, CMYK), artwork (vector files, halftones), and production settings (flash cure, mesh count). When brands use the wrong word or don’t supply the right format, printers fill gaps with assumptions.
Take bleed as an example. In printing, bleeding occurs when the ink migrates outside of the desired area or when dye from the garment contaminates the ink. Designers who ask for “no bleed” but send artwork that lacks sufficient margin will see artwork clipped off the edge. Similarly, registration describes how different colours align. A butt registration means two colours meet without overlap. If the design relies on overlapping colours but the file indicates butt registration, the result will be a visible gap.
Colour control requires its own vocabulary. Pantone Matching System (PMS) references specific ink formulations so that printers mix precise pigments; CMYK is the four‑colour process of cyan, magenta, yellow and black. Ask for “bright orange” and you leave interpretation to the printer; specify Pantone 172 C and you get consistency across runs. Halftones—images composed of dots of varying size allow printers to reproduce gradients. Without knowing how halftone screens translate to fabric, brands often supply photographs that don’t translate well at 45 lines per inch.
Printing methods also carry hidden constraints.
Screen printing pushes ink through a mesh stencil; thicker inks such as plastisol sit on top of the fabric and require curing in a belt oven that heats ink to about 330°F.
Direct‑to‑garment (DTG) uses a specialised inkjet printer that sprays water‑based ink directly into the fibres. Because the ink becomes part of the fabric, DTG prints tend to have a “vintage” feel and can fade over time.
Direct‑to‑film (DTF) prints onto a transfer film and then heat‑presses the design onto the garment useful for detailed artwork and shorter runs. Each method imposes minimum order quantities and setup costs. Screen printing offers unit economics for bulk orders, but each colour requires its own screen. DTG and DTF eliminate screens but have slower throughput and limited fabric compatibility.
Even file types matter. Vector formats such as AI and EPS maintain crisp lines at any size, while raster files (JPEG, bitmap) pixelate when scaled. Without vector artwork, printers must redraw graphics adding cost and risk. Terms like mesh count (the number of threads per inch in the screen mesh) govern ink deposit: higher counts produce finer detail; lower counts allow thicker ink for bold designs.
Print-Spec Playbook
To avoid misprints and protect your margin, treat printing vocabulary as part of your product spec. Use this three‑step framework to build fluency:
Master the printing methods.
Screen printing excels at bold graphics and large runs. Understand flash drying, a quick heat to set ink before additional colours and flooding, filling the screen with ink before pulling a print stroke. Recognise that each colour increases setup cost and plan art accordingly.
DTG is ideal for full‑colour, photographic designs and small batches. Realise that the water‑based inks dye the fibres directly, so the garment colour influences print brightness. Provide a high‑resolution PSD or PNG with transparent background.
DTF and transfers produce vibrant prints on complex fabrics. Provide artwork with a bleed area to avoid clipping and confirm the transfer film size with your printer.
Specify colour and artwork like an operator.
Use Pantone or PMS codes to define each colour. Avoid referencing screen colours because monitors vary.
Provide vector files (.ai, .eps) for line art. If sending raster images, ensure they are at least 300 dpi at print size.
Communicate registration type. A butt registration abuts colours; an overprint intentionally overlaps to avoid gaps. Note any halftone screens or gradient requirements.
Include a separate layer for bleed, typically 1/8" beyond the cut line. This prevents clipping and ensures full coverage.
Understand production vocabulary and quantities.
Ask about mesh count and squeegee durometer if your design has fine detail finer meshes and harder squeegees push less ink, preserving detail.
Clarify minimum orders. Screen printing often requires a minimum order due to screen setup; DTG can produce one‑offs but has a higher per‑unit cost.
Discuss curing methods. Plastisol inks cure through heat in belt ovens; water‑based inks may air dry but require heat to fully set. Confirm with your printer to avoid cracking or washout.
A simple two‑column glossary can serve as your quick reference. Keep definitions short to aid memory:
TermDefinition (operator version)
Bleed: Extra printed area beyond the trim line to avoid clipping; also refers to dye migrating into ink.
Registration: The alignment of different colours during multi‑colour prints; butt registration means colours meet without overlap.
Pantone/PMS: A colour matching system using numbered swatches for precise ink mixing.
Halftone: Image made of dots of varying size to simulate gradients.
Mesh Count: Number of threads per inch in a screen; higher counts allow finer detail.
Flash Cure: Quick heat to set ink between colours without fully curing.
DTG (Direct‑to‑Garment): Digital printing where water‑based ink is sprayed directly onto fabric.
DTF (Direct‑to‑Film): Printing onto film, then transferring to fabric with heat and pressure.
Plastisol: PVC‑based ink used in screen printing; cures via heat to form a flexible layer.
Vector File: Artwork built from points and curves (.ai, .eps); scales without losing detail.
Brief vs Operator
Imagine a garage brand launching a limited run of tees with a gradient flame graphic. The designer sends a flattened JPEG and asks for “neon orange and yellow.” The screen printer interprets neon as standard orange and uses a butt registration, leaving a thin white gap where colours meet. After printing, the gradient looks muddy due to poor halftone definition and the design is slightly cropped because there was no bleed. The brand spends thousands on samples and wastes weeks.
Now compare that to an operator‑level approach. The designer supplies an AI file with separate layers for each colour, specifies Pantone 1655 C for the orange and Pantone Yellow C for the yellow, adds a 3 mm bleed around the artwork, and requests a 45 lpi halftone screen. They choose DTG for a small run of 50 shirts and ask the printer to use a light pretreatment to maintain fabric softness. The result? The first samples match the digital mock‑up, colours are vibrant and aligned, and the garments ship on time. Understanding and using printing vocabulary eliminated miscommunication and gave the brand confidence in its production.
Speak in Production Terms
At Midnight, we operate at a technical level because merchandise is engineering. Send us your artwork and specifications, vector files, Pantone codes, desired print method and we’ll translate your creative direction into production‑ready merch. Whether you need screen printing for 5,000 tees or a DTG test run of 25 hoodies, our team speaks the language of printing so you don’t have to. Send the brief, and we’ll handle the rest.