Heat transfer vinyl (HTV) is a thin plastic film with a heat-activated adhesive on the back. It is cut to the logo shape and pressed onto the garment. It bonds well when time, temperature and pressure suit both the vinyl and the fabric, and it fails at the edges when any of the three is off. Because hoodies are thick, brushed and often finished with softeners, they are harder to bond to than a flat tee.

Application settings

Each vinyl has a recommended temperature, pressure and time from its maker. Too little heat or pressure leaves the adhesive only partly activated, and the logo lifts at the edges after washing. Too much heat can scorch the fabric or cause shiny marks. Thick fleece can also absorb heat and pressure, so settings that work on a tee may be too low for a hoodie. Ask the decorator for the vinyl data sheet and the settings used on your fabric.

Fabric surface and moisture

Brushed fleece has a fibre surface that the adhesive grips less well than a smooth fabric. Silicone softeners and some finishes also reduce adhesion. Fabric holding moisture can interfere with the bond, which is why many decorators pre-press the garment area for a few seconds before applying. Ask whether the fabric has a softener or water-repellent finish, and test on that exact fabric, not a similar one.

Washing and drying

Wash-test finished hoodies with a named procedure such as ISO 6330 and your label instructions, for several cycles, including tumble drying if the label allows it. Look at the edges, the corners and small details first. Hot water, high-heat drying and harsh detergents all stress the bond. Compare against an unwashed sample and photograph both.

Match the label to the result

The FTC Care Labeling Rule, 16 CFR Part 423, requires care instructions that are supported by a reasonable basis. If the vinyl only survives cool washing and low drying, the label should say so. Check colour fastness of the fabric to washing with ISO 105-C06 as well, since dye can migrate into light vinyl on some synthetic blends.

What to specify

Write the vinyl brand and type, logo size and position, press settings, a minimum wash test and the approved wash-tested sample as the bulk reference. Check the first bulk pieces for edge lifting before the whole run is pressed.