"silk fabric" is a perfectly correct and usable phrase in written English.
You could use it in a description of clothing, for example: "She wore a pink dress made of silk fabric."
Mr. Hoadley's work looks and feels like draped silk fabric.
n Giovanni striped silk fabric, $186 a yard, Grey Watkins.
Foulard, light silk fabric having a distinctive soft finish and a plain or simple twill weave.
The ultimate cougar dress (in a leopard print) is in a cotton and silk fabric.
Though originally a silk fabric, it is now made of yarns of other fibres.
Another dress was decorated with images of flowers and pumpkins — the silk fabric printed rather than painted, a technical feat.
The result is a silk fabric in which bold blocks of color float luminously against a light ground.
At Jewel by Lisa, the cup-shaped boats surfing the undulating silk fabric had a message: the life of the ancient Hausa-Fulani people.
Archduke Franz Ferdinand of Austria is said to have been wearing a protective vest made of multiple layers of silk fabric when he was assassinated, in 1914.
Cotton is the usual material for working attire, but fashionable ladies wear a chalvar made from a brocade or silk fabric over linen drawers.
The Baccarat crystal item is a candlestick, not a lamp, and the silk fabric by GP&J Baker is called Fishes, not Fish.
