There are two general kinds of materials used when making a custom flag. Dacron polyester and nylon have long been used by reliable manufacturers because these have the characteristics of being tough and lightweight. There are makers that use low-grade polyester or nylon which may not be too tough. Dacron polyester is also more lightweight compared to nylon and will last longer. The preferred material is Dacron polyester when it comes to inkjet printing because it is tightly made. The inks used for printing do not easily fade when using Dacron polyester and images appear crisp for a long time.
During screen printing, custom flags will be made when ink is pushed via a screen. The screen will already have the layout or image. The technique, however, only applies for solid and spot colors. It will not be effective for photos and sharp images.
Inkjet printing involves printing documents and text. It is quite the same as an inkjet printer wherein ink is sprayed on the flag material. The ink will go into the fabric to come up with the desired design.
Finally, dye-sublimation printing involves applying powdered dye on the material which will move through a fuser to stick the toner to the material. It is the same as a laser printer for documents. The final design is a highly attractive custom flag. You might notice that the design or toner only appears on one side of the material. The toner is placed only on the surface and not soaked into the material to appear in reverse on the other side.