GAA Training Jersey Crests: Check Dye Migration Before Bulk

Stahls' dye-migration handbook distinguishes opacity from migration. Opacity concerns hiding the garment colour underneath; migration involves garment dye entering the applied decoration. The handbook also explains that a change can appear after heat application rather than being visible immediately. These are different reasons why a pale crest may appear discoloured on a dark polyester shirt.

Buyer application: label the observation accurately before asking for a correction. Record whether the crest looked wrong at first inspection or changed later, and retain photographs under the same agreed lighting alongside the physical sample. Do not diagnose the cause from a phone image alone. Ask the decorator to examine the material combination; adding another visible white layer is not automatically the right response to dye movement.

Evidence: Stahls'

Begin with the intended Gaelic training jersey, not a loose generic polyester swatch. Record the style, body fabric reference, colourway, dye or printed-lot identifier where available and the crest's position. Identify whether the relevant background is a solid colour or a sublimated design. When the crest crosses a printed stripe or another background colour, include that exact arrangement in the proposed sample.

Build a small coverage list by fabric and background combination. A navy adult training top and a differently constructed youth top should not share an approval merely because both use the club crest. Where several lines genuinely share the same material and application system, ask the supplier to explain which sample represents them. Leave unrepresented combinations open rather than describing the entire club range as approved.

Siser describes Sublithin Matt LT as a printable heat-seal material intended for low-temperature transfer onto polyester textiles coloured with sublimation inks. Its product description identifies a dye-barrier function and specifies compatible printing systems. This is evidence that material selection and printing route matter; it is not a guarantee for any untested crest or an endorsement of one product for every jersey.

Ask the decorator to identify the proposed transfer, printing route and supplier instructions. Confirm whether the crest is printed directly onto the garment, formed from a cut film or applied as a printed transfer, and keep those routes distinct in the quotation. Do not substitute instructions from a similarly named material. Request a revised sample if the transfer system changes after approval, even when the club artwork and visible colour remain unchanged.

Evidence: Siser s.r.l.

Avient's polyester-printing guidance recommends pretesting new garments and fabric dye lots. It also connects ink selection to garment composition, colour, stretch and surface characteristics. That guidance concerns screen printing; it does not supply a universal application recipe for every heat-transfer film. Its relevance here is the need to identify the substrate and evaluate the proposed decoration system.

For a heat-applied crest, request the selected transfer manufacturer's current application instructions and a record of the conditions used for the sample. Include the equipment reference, temperature, time, pressure and relevant peel or cooling sequence as reported by the decorator. Resolve missing or conflicting instructions with that supplier. Do not simply lower the heat until the crest looks acceptable, because visual appearance alone does not establish that the intended application process was completed correctly.

Evidence: Avient

Our recommendation is a staged review: retain the first inspection, then examine the decorated garment again after a holding interval agreed with the transfer supplier. Stahls' handbook describes delayed migration, so a same-moment photograph should not close this question. Use the named supplier's assessment advice and the intended garment conditions rather than treating one waiting period as proof of lifetime performance.

Keep the crest colour reference, an undecorated piece of the same background and the decorated sample together. Record the observation dates, lighting arrangement, visible change and reviewer. Review adhesion, feel and garment distortion separately; a colour-stable crest may still leave another approval question unresolved. If laundering is included, agree the decorated garment's care procedure and assessment conditions. A migration screening record should not be relabelled as a standardized wash-fastness report.

Evidence: Stahls'

Use a release sheet with one row per evaluated crest-and-background combination. Recommended fields are jersey and fabric reference, colour or print background, transfer identity, application-record reference, initial appearance, later appearance and the final decision. Include the approved artwork revision and finished crest dimensions so the physical result remains connected to the file the club accepted.

If a sample shows discolouration, hold the affected combination and ask the decorator for a documented correction and new evidence. Preserve the failed sample as well as the replacement; do not overwrite the earlier result with a better photograph. Send Olinc Sports the training-jersey references, crest files, colours, quantities, size allocation, destination and this approval request for a manufacturing quotation. Confirm the proposed sampling arrangement before bulk production. This guide does not claim a tested Olinc result, a fixed turnaround or competition approval.