Brief description of the packaging to be formed, preserve and use the color of a wing of the butterfly valve natural

摘要

Butterfly wings are preserved by sandwiching their colored scales (3) between two films (1 and 5) at least one of which is transparent. The films are held in position be adhesives (2 and 4) which are transparent and do not tarnish the natural colors of the scales. The upper film may include an ultra violet filter. The ribbed membrane of the wing is not preserved.