Do fabrics need to be 100% polyester for dye sub printing?
What you may not know is how this process works and why polyester fabric is the best product for dye sublimation paper printing, whereas cotton, wool, and even nylon will not work for this type of printing.
Starting with the dye, it is necessary to know that the dye is not the same type of ink as inkjet inks which use the CMYK (cyan-magenta-yellow-black) ink set, but instead, use a CMYO dye set (cyan-magenta-yellow-overprint clear) where the clear, when it is printed on the dye sublimation transfer paper, turns to black and transfers that way.
Once the sublimation paper is printed, it is joined, print side to whichever type of material you are using, then put through a set of heated rollers. The heat must be in excess of 370º F (190ºC) to cause the dye to be converted into a gaseous form, and also to cause the polymer’s cells to open as they expand to accept the now gaseous dye into the cells.
Once this process has taken place, the fabric cools, the cells close, and the color is permanently locked into the fabric in continuous tones of beautiful color, similar to a photograph’s tones.
Without the cellular construction of the polyester fabric and it’s polymeric qualities, it would not be possible to print using dye sublimation. So, the more polymers, the better. So the answer is, of course, yes and no. We recommend using 100% polyester, but it’s not an absolute requirement.
Company Name: Fei Yue Paper Industrial Co.,LTD
Whatsapp: +86 18252072197
Address: Central Road 323, Nanjing, Jiangsu, China