Paper marbling Turkish and Persian, which literally means Frankish. Historic forms of marbling used both organic and inorganic pigments mixed with water for colors, and sizes were traditionally made from gum tragacanth ("Astragalus" spp.), gum karaya, guar gum, fenugreek ("Trigonella foenum-graecum"), fleabane, linseed, and psyllium. Since the late 19th century, a boiled extract of the carrageenan-rich alga known as Irish moss ("Chondrus crispus"), has been employed for sizing. Today, many marblers use powdered carrageenan extracted from various seaweeds. Another plant-derived mucilage is made from sodium alginate. In recent years, a synthetic size made from hydroxypropyl methylcellulose, a common ingredient in instant wallpaper
Tyrian purple this ability has sometimes also been historically exploited by local inhabitants in the areas where these snails occur (Some other predatory gastropods, such as some wentletraps in the family Epitoniidae, seem to also produce a similar substance, although this has not been studied or exploited commercially). The dog whelk" Nucella lapillus", from the North Atlantic, can also be used to produce red-purple and violet dyes. The Phoenicians also made an indigo dye, sometimes referred to as "royal blue" or "hyacinth purple", which was made from a closely related species of marine snail. The Phoenicians established an ancillary production facility on