Full-Sublimation Sports Jersey Manufacturing Process

Sublimated teamwear reverses the normal order of garment production. In almost every other process the garment is made and then decorated. Here the fabric is decorated and then made, which means the artwork has to be engineered to the pattern before a single panel is cut. Everything that follows, including where a sponsor logo can safely sit, comes from that one fact.

Why the fabric has to be polyester

Sublimation dye changes from solid to gas under heat and bonds with polyester fibres. On cotton the colour does not hold in the same way, which is why fully sublimated garments are polyester based. Blends with a lower polyester content will take the print, but with reduced saturation, which reads as a faded or vintage effect rather than a fault.

The structures involved are covered in performance polyester knits. Two consequences follow. The dye is transparent, so it can only add colour, never remove it: there is no white sublimation ink, and anything that must appear white has to be the fabric itself. That is why sublimation is printed onto white or very light fabric. And because the colour lives in the fibre rather than on the surface, the finished graphic cannot crack or peel, and it adds no weight or stiffness to the garment.

Artwork is engineered to the pattern, not placed on a mock-up

This is the step that separates a professional sublimated garment from a poor one. The design is not one image applied to a finished shirt. It is a set of full-size files built to the actual pattern pieces, including the parts of the fabric that will be consumed by seam allowances and lost in cutting.

• Full production scale. Panels are printed at real size, so artwork resolution must hold at those dimensions. A file that looks sharp on screen is not evidence.
• Image beyond the cut line. The design extends past the panel edge, because cutting carries a small tolerance and an unprinted white edge cannot be corrected afterwards.
• Seam allowances accounted for. Part of every printed panel disappears into the seam. A graphic that ends exactly at the panel edge will appear to end early on the finished garment.
• Per-size layouts. Each size has different pattern pieces, so the artwork is laid out for each size rather than scaled. A design that is balanced on a medium can look cropped on an extra large if it is simply enlarged.
• Critical elements away from seams. Sponsor logos, crests and text are positioned clear of seam lines wherever the design allows, because that is where alignment tolerance is consumed.
• Layered, editable files. Names, numbers and per-size adjustments are far easier to apply from a structured file than from a flattened image.

General file requirements across all decoration methods are in the artwork guide, and the method itself is explained in the all-over sublimation guide. Laying the artwork onto the panels is covered in sublimation artwork preparation, and arranging the crest, sponsors, number and name in sports jersey artwork layout.

Colour management

Sublimation colour is the product of ink, paper, printer profile, fabric and heat. The same file printed on two different fabrics will not give the same result, and no screen can predict it. The reliable approval is a printed strike-off on the actual fabric, assessed under controlled lighting.

For teamwear this matters commercially, because club and sponsor colours are often defined as brand colours. Supply the references you have, ask for a strike-off, and approve on the physical result. Where a colour cannot be reached, it is better to know at proof stage than after 500 shirts. The colour-approval logic is the same one described in the Pantone colour matching guide, even though the mechanism is printing rather than dyeing.

Printing and transfer

The engineered artwork is printed onto transfer paper with sublimation inks, then paper and fabric pass together through heat and pressure so the dye transfers into the fibres. Production scale determines the equipment: flat heat presses for panel-by-panel work, roll-to-roll calenders for continuous fabric.

Two practical effects are worth knowing. Under-transfer leaves colour weak and washes out; over-transfer can blur detail and, on some fabrics, cause ghosting where the paper shifts during pressing. Both are covered, along with dye migration, in why printed colour changes on polyester. Both are settled at proof stage, which is exactly why the strike-off exists.

Cutting printed fabric

Once the fabric is printed, cutting is no longer a free operation. Panels have to be cut to the printed design rather than anywhere on the roll, so the marker is fixed by the artwork rather than optimised for fabric efficiency. That is one reason sublimated production is priced differently from cut-and-sew production in plain fabric.

Alignment is checked at this stage: printed registration marks are used so that adjoining panels are cut in the correct relationship to one another. Errors here cannot be corrected in the sewing room.

Seam alignment: what is achievable

Registration is the technical name for how accurately a printed design lines up once the panels are joined, and on a jersey it is a quality parameter rather than a detail. Printing, cutting and seaming each contribute a small amount of movement, those contributions add up, and the result is agreed as a target rather than assumed.

• Bold, continuous patterns absorb small misalignment. A thin horizontal stripe crossing a side seam shows every millimetre.
• Keep logos, numbers and text away from seams where the design allows.
• Agree an alignment tolerance with the factory during sampling, and record it as part of the inspection standard.
• Judge alignment on the approved sample, not on a rendered mock-up.

Sewing a sublimated jersey

Assembly is conventional cut-and-sew work on polyester knits, usually overlock for the structural seams with coverstitch or flatlock where a low-profile finish is wanted against the skin. For a simpler garment printed the same way, see the sublimated performance T-shirt process. The construction decisions that matter are at the neck and the panels.

• Collar. Options include a self-fabric bound neck, a printed or plain rib collar, a V-neck with an insert, or a collar cut from the sublimated fabric so the design continues. Each looks different and each has a different cost.
• Panel construction. Side panels, underarm gussets and mesh inserts are pattern decisions that also change the artwork layout, so they are settled before the design is engineered.
• Sleeve construction. Set-in or raglan changes both the pattern and how a design flows across the shoulder.
• Hem finish. A plain coverstitched hem, an elasticated hem for cycling jerseys, or a silicone gripper where the garment must stay in place.
• Zip, on half-zip and full-zip styles. Set into a facing, with the artwork engineered so the design meets correctly across the closure.

Jersey construction by sport: basketball, volleyball, handball, ice hockey, cycling, motocross and goalkeeper kits

The sublimation process is the same for every sport; the cut, the panels and the trims change. Panel layout decides where the artwork breaks, so the construction for the sport is fixed before the design is engineered to the pattern.

Kits, shorts and training tops for clubs and teams are covered on the sublimated teamwear manufacturer page.

Names, numbers and sponsor logos

There are two routes, and they are commercially different.

Sublimated names and numbers cannot crack or peel and add nothing to the hand-feel, but they are fixed at printing. Applied numbers are flexible but sit on the surface. Many teamwear programmes use both: sublimated sponsor artwork and applied player names.

Quality control: sublimation-specific checks

Where the end use justifies it, add colourfastness to light and to perspiration alongside washing tests, since sportswear sees both. Testing is covered in the quality control guide.

What to put in a sublimated jersey tech pack

• Fabric: polyester structure, weight and any elastane content, plus mesh or panel fabrics.
• Pattern: panel layout, sleeve construction, side panels and inserts.
• Artwork: layered files built to the pattern, at full size, with bleed and seam allowance accounted for, per size.
• Colour references, and confirmation that approval is on a printed strike-off.
• Collar construction and neck finish.
• Names and numbers: sublimated or applied, with fonts, sizes and positions.
• Sponsor logos with positions measured from fixed points.
• Hem and cuff finishes, including elastic or gripper where used.
• Size range and split, with a measurement chart and tolerances.
• Labels: printed or woven, and whether a printed neck label is used.
• Packing: individual bagging, name or number identification per piece where relevant.

Sampling

Sublimated production has two approval points rather than one. The first is the printed strike-off, which settles colour and print quality on the actual fabric. The second is the sewn sample, which settles fit, panel alignment, collar construction and finishing. Approving only the second wastes a round, because a colour problem discovered on a finished sample means reprinting.

Check the largest and smallest sizes as well as the sample size, since artwork is laid out per size and balance can shift at the extremes. The general sequence is described in the sampling guide.

Minimums, cost and what makes a sublimated jersey expensive

Sublimation prices differently from other decoration. There are no screens and no colour separations, so a ten-colour design and a two-colour design print the same way and cost the same to print. What costs money is artwork preparation, which is per size and per style, and the fact that panels must be cut to the printed design rather than to the most efficient marker.

All-over sublimation production at Voyager Textile has the same minimum as other custom apparel: 300 pieces per colour and per style, with sizes split within it. See the MOQ guide.