NATS 1870 Lecture 13: guest lecture
25 Jan 2019
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Document Summary
A pigment is a material that changes the colour of reflected or transmitted light. Acrylics: the first white spirit based acrylic came out in 1947, the first water based acrylic was by liquitex in 1955, acrylic binders are. There are three rolls, which fully wet the pigments. Apron roll: once the pigments have been through here, they come off the apron roll as paint. Colour properties of paints and pigments: transparency/opacity rating, astm light fastness/permanence rating; astm is the american society of testing and materials. Aa is extremely permanent and will outlive us. A is permanent - recommended for artists. C is fugitive: single or mixed pigments, hazards/toxicity/hues, colour name, pigment chemical description. 2: pigments can be organic or inorganic, series. The pigment families: organic, properties, small pigment size, create transparent paint films, offer affordable and non-toxic alternatives to cadmiums, good lightfastness, carbon compounds; natural organic plant, natural organic animal; carmine/indian yellow i. ii.
