How to get bubbles out of vinyl? How to stop heat transfer vinyl layers from bubbling?
Each type of HTV Vinyl has its own method of use and that it needs to be applied with.
When using HTV (Heat Transfer Vinyl), time, temperature and pressure are extremely important factors. Check the instructions of the vinyl you are using and make sure all settings are correct.
Time-If the ironing time is too short, the HTV will not stick to the shirt. Long pressing or ironing may have the same effect. HTV works by using heat activated adhesives, so little time and the heat is not enough to stick. Too long, it will actually burn off the adhesive.
Temperature-Not all heat press vinyls are used at the same temperature. Check to make sure you are using the recommended temperature. It is really more convenient to use a heat press than an iron to adjust the temperature and time with accuracy.
You must also consider what to wear on the media. Beware of granite, stones, or surfaces that absorb iron heat. Do not use an ironing board or any other objects that will hold the iron firmly.
Pressure- This is usually a problem you’ll run into with using an iron rather than a heat press. It is difficult to press down your design with an iron, especially for large designs. And you have to consider what your shirt is laying on to the press. Beware of stone, granite, or surfaces that will absorb the heat from iron. Don’t use an ironing board or anything, it will not allow you to get a really firm press with your iron.