Tuesday, September 19, 2017

Snacktime learning idea: Giotto Egg Yolk Paint

Painting Cookies
Look at some paintings by Giotto. Giotto’s paints were made from egg yolks mixed with clay, minerals and other items from nature.
In this activity you will paint cookies with an egg yolk “paint”.
Mix up your favorite sugar cookie dough.
Decide how many colors you want to make. Crack and separate the eggs, one yolk for each color. Put each yolk in a separate bowl.
Stir each yolk until smooth. Add food coloring, until yolk is desired color.
Blend.
Cut out the cookies and paint designs on the cookies using new paintbrushes.
Bake.



Egg Tempera Technique

Egg tempera technique is a painting technique in which egg yolk is used as
a binder for the color pigment. Water is used as the medium

History of egg tempera painting

Earliest records of egg tempera painting traces back to Egypt and Greece in the 1st century A.D and in the Byzantine Empire
During the medieval period from 5th to 14th century, it was used mainly for religious and icon painting.
 It developed into a refined and disciplined method of painting between 12th and 15th century.
 Before the development of oil painting in the late 15th century, egg tempera was the most popular painting technique among the artists.
Since the 16th century, especially in the 19th century there is a sporadic revival of egg tempera technique of painting.
The attributes of Egg Tempera

It is the most versatile and most durable methods of painting.
Tempera is applied in thin layers, each layer is allowed to dry, the layer dries rapidly and becomes water resistant; it does not mix with the underlying layer, so there is an optical blending of colors in a tempera painting which accounts for the glowing effect that it achieves.
Very delicate and complex work can be achieved by the use of egg tempera paints as the layers of tempera paint are overlaid in layers of hatching and cross hatching.
It takes its edge over watercolors as it can be applied in distinct layers and glazes and there is no mixing of adjoining layers, the effect achieved is more transparent than water colors. The egg tempera allows almost immediate overpainting as the tempera layer dries quickly.
Unlike watercolors mistakes can be corrected by gently wiping the area with a damp cloth and repainting it.
The quick drying time and the translucent quality of tempera give it an edge over oil painting.
Colors become richer and deeper as the painting cures with time
It is almost unaffected by humidity and temperature changes.
Egg tempera dries with a matte finish, which enhances the light bright
quality of the colors .If the dry paint film is lightly buffed with a soft
rag, it will take on a satin –like sheen which some painters regard as
desirable finish .Varnish on tempera should be applied after at least one
year. .Some painters prefer matte and wax varnish on tempera because they are
more in keeping with the paints natural finish.







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