There could be several reasons why your heat transfer vinyl is not adhering properly to the garment. Here are some possible causes:
Incorrect temperature or pressure: Heat transfer vinyl requires specific temperature and pressure settings for proper adhesion. If the temperature is too low or the pressure is insufficient during application, the vinyl may not bond effectively to the fabric. Make sure you are following the recommended temperature and pressure guidelines provided.
Inadequate pre-pressing: Pre-pressing the garment before applying the vinyl is crucial to remove any moisture, wrinkles, or residual chemicals that could interfere with the adhesion. Failing to pre-press the garment properly can lead to poor bonding and eventual peeling.
Poor quality vinyl or incorrect type: The quality and type of heat transfer vinyl can affect its durability and adherence. Ensure that you are using high-quality vinyl specifically designed for the fabric type you are applying it to. Some vinyl types may not be suitable for certain fabrics, such as stretchy or textured materials, leading to adhesion issues.
Improper washing or drying techniques: Incorrect washing or drying methods can cause the vinyl to peel off. Avoid using harsh detergents, high heat, or excessive agitation during the washing process. Turn the garment inside out before washing to minimise friction. It's best to air dry or use a low-heat setting when drying the garment.
Insufficient pressing time: The vinyl needs sufficient time under heat and pressure to bond properly with the fabric. If you're not applying enough pressure or not pressing for the recommended duration, the adhesion may be compromised, leading to peeling after washing.
Fabric compatibility: Some fabrics have coatings, treatments, or textured surfaces that may hinder the vinyl's adhesion. It's important to ensure that the fabric is suitable for heat transfer vinyl application. If the fabric is water-resistant or has a special finish, it may be necessary to use a different vinyl type or consider alternative decorating methods.
To address the issue, you can try adjusting the temperature, pressure, and pressing time according to the vinyl manufacturer's instructions. Additionally, double-check that you are using the correct type of vinyl for your fabric.
