Fabric Types

How digital fabric printing works, from file to finished cloth

a large machine with a lot of papers on it

Photo by Geri Sakti on Unsplash

Digital fabric printing has changed the way sewists, small businesses, and designers access custom fabric. Instead of ordering minimum runs of thousands of metres from an overseas mill, you can have a bespoke design printed on a metre of cotton jersey and receive it within a week. But how does the process actually work? Understanding each step helps you design better files, choose the right fabric base, and get prints that look exactly as you imagined.

The design file: where it all starts

Every digital print begins as a digital file, usually a high-resolution image in PNG, TIFF, or PDF format. The artwork needs to be at least 150 DPI at print size, though 300 DPI is the standard for sharp, detailed results. Anything below this and fine lines can look soft or blurry on cloth, which is especially noticeable on lighter fabric bases where contrast is high.

Colour mode matters too. Most digital printers work in CMYK (cyan, magenta, yellow, and black), while most design software defaults to RGB (red, green, and blue). RGB colours can be more vivid on screen than they will ever appear in print, so converting to CMYK before submitting your file avoids unwanted colour shifts. Bright neons and certain electric blues are the usual culprits when customers say their print looked different to the screen preview.

Repeat design is another consideration at this stage. If the fabric will be used for garment making, a well-constructed tile repeat ensures the pattern lines up cleanly across seams. An offset half-drop repeat, for instance, looks seamless on fabric but requires a specific file setup to tile correctly.

Fabric preparation and pre-treatment

Before any ink touches the cloth, the fabric base needs to be prepared. Most digital printing facilities apply a pre-treatment solution to the fabric surface. This coating does two things: it helps the ink bond to the fibres rather than sitting on top and spreading, and it ensures the colour profile reads correctly after printing.

Different fabric bases absorb and reflect ink differently. Natural fibres like cotton and linen absorb reactive dyes well and produce rich, saturated colours with a softer hand feel. Synthetic bases like polyester use a different process called dye-sublimation, where heat transfers ink vapour into the fibre at a molecular level, producing vivid, durable results. Blended fabrics such as cotton lycra fall somewhere in between and require careful ink selection. If you want to understand how these differences play out in real projects, the guide to which fabrics hold vibrant digital prints best is a practical place to start.

The printing process itself

Digital fabric printing uses industrial inkjet technology, similar in principle to a desktop inkjet printer but on a completely different scale. Wide-format print heads move across the fabric, depositing precise droplets of ink in the exact pattern defined by the design file. The fabric rolls through the machine on a conveyor belt or sticky mat that holds it flat and prevents shifting.

Print speed varies by machine and quality setting. Production printers can cover several square metres per minute, but slower passes allow smaller ink droplets and finer detail. Most quality-focused printers run at a medium pass count that balances speed with sharpness, especially for designs that include fine text, detailed illustration, or photographic imagery.

The colour management system (RIP software) is the translator between your design file and the printer. It reads the colour values in your artwork and converts them to the precise ink percentages needed to replicate them on that specific fabric. This is why choosing an experienced printer matters: good colour profiling is the difference between a muted, muddy print and one that looks crisp and intentional.

Post-processing: steaming, washing, and drying

After printing, the fabric goes through a steaming process. Steam sets the reactive dyes permanently into the fibre by activating the chemical bond between the ink and the fabric. Without this step, the colour would bleed or fade almost immediately after the first wash.

The fabric is then washed to remove any excess ink, pre-treatment chemical, and loose dye. This washing step is what gives digitally printed fabric its hand feel: before washing, the surface can feel slightly stiff from the pre-treatment coating. After washing and drying, the fabric softens into its natural texture and drape.

Drying is typically done in a controlled heat environment to avoid shrinkage and ensure the fabric comes off the line at the correct dimensions. A quality printer will measure shrinkage rates for each fabric base and account for them in the cutting and rolling process so you receive fabric close to the length you ordered.

Quality checking and finishing

Before a roll of printed fabric leaves the production facility, it goes through visual and technical inspection. Printers check for banding (horizontal lines caused by a blocked print head nozzle), colour consistency across the width of the fabric, and any physical defects in the base cloth. Some facilities also measure colour accuracy against the submitted file using a spectrophotometer.

Once approved, the fabric is rolled, cut to the ordered length, and packaged for dispatch. At Fabric by TrishaMakes, preorder fabrics are air freighted to Brisbane, which keeps turnaround times as short as possible compared to standard sea freight. Understanding how to choose the right fabric weight for your project before you place a preorder means you can be confident the base you select will suit the finished project once the roll arrives.

Why this process produces better results than traditional printing

Screen printing, the traditional method for patterned fabric, requires a separate screen for every colour in a design. A six-colour print needs six screens, and each adds cost and lead time. Minimum order quantities are high because setting up the screens is expensive. Digital printing eliminates all of that. There is no screen setup, no colour limit (the printer can reproduce millions of colours simultaneously), and no minimum run. A single metre and a hundred metres cost the same per unit to print.

The environmental footprint is also smaller. Digital printing uses ink on demand, depositing only what is needed for each design rather than mixing large batches of ink that may go to waste. Water usage in digital printing is significantly lower than traditional discharge or reactive screen printing because there is no screen-cleaning process.

For sewists who want to work with fabric that is genuinely unique, understanding this process also opens up the possibility of designing your own. Once you know what file specifications a printer needs and which fabric bases perform best for your project type, popular custom fabric bases explained for beginners gives you a clear foundation for making those decisions with confidence.

Getting the most from your printed fabric

Digitally printed fabric performs best when you treat it correctly from the first wash. Pre-washing before cutting removes any residual finish and pre-shrinks the cloth so your finished project holds its shape. Washing inside out in cold water on a gentle cycle protects the print surface. Avoid harsh detergents, bleach, and high-heat tumble drying, all of which degrade ink bonds over time. The care you give a digitally printed fabric in the first few washes sets the tone for how long the colours stay vivid.

The process from file to finished cloth is more refined than most people realise. Every step, from colour profiling and pre-treatment through to steaming and quality inspection, exists to ensure what arrives in your hands matches what you saw on screen. When the system works well, the results are genuinely stunning.