The main difference between organza and organdy is that organza is usually made from silk, rayon or polyester, while organdy is made from nylon or cotton. The two materials are extremely similar in appearance and texture.
Both organza and organdy are elegant fabrics, luxurious and iridescent. They are often used interchangeably, and many who are unfamiliar with fabrics may confuse the two. There are subtle differences, however, with which one can tell them apart.
Organza has a variety of uses including elegant ball gowns, curtains and even artificial flies used in fishing. The finest organza material is made from silk, but even when made from polyester the texture remains the same. The material is smooth and flat, yet strong.
While organdy is primarily made from cotton fibers, the texture and sheen are nearly identical to organza. In fact, the only difference is the fiber itself. Organdy is transparent, just as organza is. Both materials have tightly woven fibers, giving the fabric its crisp feel.
Another similarity between the two fabrics is that they are processed in the same manner. The yarns of both organdy and organza are combed instead of carded. This means the fibers are prepared by literally combing them to remove any tangles and imperfections. Once combed, the fibers are woven into the fabric.