Shagreen ray Shagreen ray The shagreen ray or shagreen skate or fuller's ray ("Leucoraja fullonica") is a species of skate in the family Rajidae. This ray is found in the eastern Atlantic Ocean, from Murmansk, Russia through Norway, southern Iceland, the Faroe Islands, the Celtic Sea, the northern North Sea and Skagerrak, to northern Morocco, including (infrequently) the western Mediterranean Sea and the Madeira Islands. It is absent from the shallow waters off England and Wales. Shagreen is a form of roughened untanned leather, typically dyed green and commonly made of the skins of sharks and rays. The common name "fuller's ray"
Tanning (leather) boil off the water to produce glue. A tannery may be associated with a grindery, originally a whetstone facility for sharpening knives and other sharp tools, but later could carry shoemakers' tools and materials for sale. There are several solid and waste water treatment methodologies currently researched on, such as anaerobic digestion of solid wastes and wastewater sludge. Tanning (leather) Tanning is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making