chain piecing
Chain piecing is when several items of patchwork are put through the sewing machine one after another, leaving only a few stitches gap between each item. This is done to speed the patchwork process and also can make certain types of piecing easier, such as when piecing very small pieces or sewing onto triangle points. When chain piecing, the beginning and ending usually include a thread saver or leader-ender.
See also: piecing, patchwork, thread saver, leader ender