Subli Stop / Blockout
Subli-Stop Flex Film / Block-Out Flex Film - sublimation resistant flex films for garment lettering on polyester garments such as football strips, soft-shell jackets and many other polyester textiles which tend to re-sublimate and discolour garment lettering.
More about re-sublimation
Re-sublimation - football strips, soft-shell jackets and other polyester textiles often re-sublimate. This means that the coloured pigments with which the textiles have been dyed are not properly fixed into the textile and they can bleed out into a standard flex film causing a discolouration. This is why we strongly recommend to use subli-stop or block-out flex films on polyester garments.
Please note that when pressing subli-stop and block-out flex films a high press temperature can damage the blockout layer. This also applies when pressing multiple coloured graphics.
Some polyester fabrics have such a high level of pigmentation that the pigments can discolour a subli-stop or block-out flex film from the front and that if this applies to the textiles you are using there is no solution to this problem. We always strongly advise thorough testing before using subli-stop or blockout flex films especially when pressing multiple garments.
The use of tumble dryers and irons can damage the blockout layer and also cause the subli-stop and block-out flex to discolour from the front.