Grosgrain

Grosgrain /ˈɡroʊɡreɪn/, also gros-grain and, rarely, gros grain, is a type of fabric characterized by its ribbed appearance. In grosgrain, the weft is heavier than the warp, creating prominent transverse ribs. It is called a "corded" fabric since the weft resembles a fine cord. Grosgrain is a plain weave corded fabric, with heavier cords than in poplin but lighter than in faille. Grosgrain has a very dull appearance with little luster but is very strong. It is a firm, close-woven, fine-corded fabric. While grosgrain fabric is generally black, it can be many different colors, and grosgrain ribbon comes in a large variety of colors and patterns.

"Grosgrain" is commonly used to refer to a heavy, stiff ribbon of silk or nylon woven via taffeta weave using a heavy weft which results in distinct transverse ribs. Historically grosgrain was made from wool, silk, or a combination of fibers such as silk and wool or silk and mohair. When a combination of fibers was used, the end result was sometimes given the name grogram, silk mohair, gros de Tours or gros de Napels.

Grosgrain is both a direct French loan word and a folk corruption of the French word grogram. Grogram, originally gros gram (appeared in literature in 1562), is defined as a coarse, loosely woven fabric of silk, silk and mohair, or silk and wool. The adjective gros means thick or coarse, originally from the Old French gros, itself derived from the Latin grossus.

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