Moire is produced from two distinctly different methods of finishing. Calendering produces the true moire, known as "moire antique" and "moire Anglaise", which is a purely physical phenomenon. In calendering, the fabric is folded lengthwise in half with the face side inward, and with the two
selvedges running together side by side. High temperatures and pressure are used as well,
Changeable moire is a term for fabric with a warp of one color and a weft of another, which gives different effects in different lights. Examples include
shot silk. Moire fabric is more delicate than fabric of the same type that has not gone through the calendering process. Also, contact with water removes the watermark and causes staining. Moire feels thin, glossy and papery due to the calendering process. Generally moire is made out of fabrics with a good body and defined ribs, such as
grosgrain. Fabrics with defined ribs show the watered effect better than smooth fabrics like
satin.
Taffeta also works well. Fabrics with defined enough ribs can be calendered with smooth rollers and produce a moire finish; however generally the rollers have ribs that correspond to the grain of the fabric. The moire effect may be obtained on silk, worsted, or cotton fabrics, though it is impossible to develop it on anything other than a grained or fine corded weave. Moire can also be produced by running fabric through engraved copper rollers. == Etymology ==