Custom Sublimation Lanyard: The Proof, the Report, the Repeat

A custom sublimation lanyard is approved twice: once on a physical proof, and once on the report that says the print will survive. Most programmes do the first and skip the second, which is how a strap that looked perfect on the sample becomes a strap that crocks onto a white shirt three weeks later. The proof shows what the colour is; the report shows what it will still be after a wash and a summer.

This guide covers what a strike-off has to contain, how colour is measured rather than eyeballed, the four fastness results that belong on the page, and the repeat decisions that stop a printed strap from looking hand-made at the back of the neck.

What a Strike-Off Has to Show

A strike-off is a short length printed with the production file on the production base with the production settings. It is not a rendering, and it is not a swatch of somebody else's job.

• The actual base — same fibre, same shade, same width. A proof on a white polyester ribbon tells you nothing about printing on a 20 mm dyed strap.
• The actual repeat — printed at the interval it will run, so the way the design closes at the join can be judged rather than imagined.
• The actual edges — including how close the ink comes to the selvedge, which is where registration drift shows first.
• Enough length to see a second repeat — one repeat cannot show whether the pattern closes cleanly.
• The keep-out zones respected — the area near the closure and the fold should be visibly clear of ink, because that is where the print is asked to bend.

The table sets a strike-off against the substitutes that get used in its place, and why each substitute causes rework.

Custom Sublimation Lanyard: Measuring Colour Properly

Colour on a printed strap is judged by eye in the end, but the approval should be backed by a number, because eyes differ and lighting differs more.

• A measured difference, not a description — a spectrophotometer reading against the approved piece gives a single figure for how far apart two lots are, which is far more useful than "slightly darker".
• Two light sources — a pair that matches under office lighting can separate under daylight. Checking under both is the only way to catch metamerism before the customer does.
• The weave is part of the measurement — a coarse sett scatters light and reads lighter than a fine one at the same ink lay. Measurement should be taken on the same weave as production.
• A retained reference — a signed piece from the approved lot, kept where both parties can find it. Numbers describe; the piece settles.

Four Results for the Report

A sublimated strap sits against a neck and rubs on a collar, so the fastness tests are not academic. Each result should name the shade, the specimen and the condition.

Rubbing, wet and dry

Wet rubbing is the one that predicts a mark on a shirt. On a deep shade it is always the harsher result, and a strap that passes dry and fails wet is the most common pattern in this category. Ask for both, on the darkest colour in the design.

Washing

Colour change of the strap plus staining of an adjacent fabric. A print that keeps its own colour but bleeds into a white holder has still failed, and the second half of that test is the one usually omitted.

Light

A stated exposure with a colour change figure. A lanyard that lives indoors is not a demanding case; one that hangs in a vehicle or is worn outdoors all summer is a different product requirement, and the number should be read in that light.

Perspiration

Relevant to anything worn against skin for hours, and increasingly requested by buyers who have had a complaint about a mark at the back of the neck. It is a slow test and worth asking for early on a programme that will run for years.

Six Decisions for a Clean Repeat

A sublimated strap is printed on a continuous length, and the repeat is what decides whether the design closes at the join. The strap itself clears 2000N regardless; the print is where the engineering sits.

1. Repeat length against finished length — the repeat should divide the loop into a whole number of repeats, or the fault lands at the back of the neck.
2. Where the join falls — a design with a deliberate gap at the join hides it; a pattern that must be continuous will show.
3. One side or both — a two-sided print is a second pass and doubles the registration risk. On a lanyard it is usually worth it.
4. The base shade — every tone in the file shifts with the base. Print on white for a clean result, or design for the base if it has to be coloured.
5. Keep-out zones — the fold and the closure area stay clear, because a sublimated print does not crack but the strap still flexes there.
6. The retained proof — signed, dated and stored with the order, because a reprint two years later needs it more than it needs the file.

Printing is the part of a lanyard that carries the brand, and it is the part that needs proof and data rather than opinion. The printable base sits in the polyester webbing range, the assembled formats are in the custom lanyard range, and the fastness figures come from the in-house laboratory measured on the shipping roll.

FAQ: Custom Sublimation Lanyard

A custom sublimation lanyard is approved on cloth and defended with numbers. Insist on a strike-off on the real base, read the report by its method rather than its grade, and check the repeat closes — the print will then look as intended for the life of the programme.