The quilt top is beautiful - all 2" squares, hand sewn together and is king-size. It is not finished, and since it was stored in an old trunk for 50 years or so, it needs to be washed before she completes the top and sends it out to be long-armed. The fabric appears to be in good shape, but we are worried that washing it would cause a lot of raveling. Is that true? She would hang it to dry. Any help would be SO appreciated!!!