The company was founded as Rockland Bleach and Dye Works in 1831[REF] by three brothers from England, James, Robert and John Wright, in the Rockland Historic District of Brooklandville, an area of present-day Baltimore, and is recorded as the oldest corporation in Baltimore County.
In 1966, Rockland capitalized on their success in the drapery lining business by inventing Roc-lon Blackout, the first curtain and drapery blackout fabric that blocked 100% of the light shining in from a window or other light source from passing through.