The paper has a smooth texture and is acid-free and its deep black colour lends itself to creating huge contrast

Since then

Pigment classification: Ammonium ferro(3+) hexa- cyano/C ferrat(4-)

Talens Ecoline Brush Pen Ultramarine Deep 506 is based on dyes and Gum arabic

sennelier pure pigments cadmium yellow deep Milk Chocolate The paper has a smoothAt the end of the 19th century, when Sennelier was developing oil paints for his customers, who included great artists such as Czanne, Gauguin and Picasso, Gustave Sennelier realised that there was a need to produce some paint that contained the highest quality pigments. In trying to produce the best colours, Gustave noted that the original pigments came from selected traditional sources, while identifying the specific chemical composition of each