Creating a Marbled Design
Below is a sequence of images which show the evolution of a marbled design. In this case the design is called the Gothic Pattern. The design is being created in a tray which is large enough to hold a 12" x 60" silk scarf.
The first step is to drop the desired paint (acrylic mixed with fabric medium in this case) onto the surface of the solution of water and carrageenan. This solution is very viscous and allows the paint to float.
A rake with pins separated by 2" is drawn through the solution in the lengthwise direction.
The same rake is then shifted exactly 1" to the side and drawn back in the opposite direction.
A similar rake with 2" pins is drawn in the perpendicular direction, both ways through the solution. As above it is shifted 1" to the side after going across the tray once and then drawn back across the tray.
Next a comb with 1/4" teeth is drawn one way lengthwise through the solution. The comb with the red handle is pictured in the foreground.
A close-up of the design after the application of the 1/4" comb shown above.
The last step is to draw a rake with pins separated by 3" up and down the length of the tray. As before the rake is shifted (in this case) 1 1/2" to the side after going "up" the length of the tray, and then drawn back in the opposite direction.
A close-up of the result of the previous step. This is a final Gothic Pattern. Now any fabric, paper, leather or other absorbent material to which alum has been applied, laid carefully on the surface of the pattern, will absorb that pattern exactly as it is.
Now the scarf is carefully laid on the design for around 30 seconds. The scarf is then removed and rinsed in a solution of lukewarm water. Note that in this case the scarf is pre-dyed a dark bronze color.
The scarf after rinsing and drying with the Gothic Pattern. Note how the original bronze color of the scarf alters the appearance of the colors in a dramatic way.