In a message dated 12/22/2005 7:59:45 A.M. Eastern Standard Time, ahern@world.std.com writes: In the States, I believe the substance was called "blueing" as there was once a factory for making it here in our town. Perhaps a blue wrapper was one that wrapped the cakes of this material. My mother used "blueing" when she washed white clothes. It made the whites look whiter. You can still buy it.