TERRACES AND METHOD TECHNICAL
The Technique of the Terraces: is biting deeply into the plate so as to generate different levels of depth between the surface and the grooves (waffles).
Roll-up method (Hayter): is to apply all colors in a single array using the ink system with different viscosities.
"The application of different viscosity inks with rollers of different hardness in a metal matrix produces rich color prints clean" Hayter
Ways to apply color to a Recorded: - Make a matrix for each color
- Inking by
areas - Use templates to cover specific areas for a certain color or shape.
- Use opaque color inks and transparent colored inks.
- Use roll with color gradients.
- Method Hayter "Roll-up", all colors in the same matrix, ink system different viscosities applied hard and soft rollers:
INK: Rheology: science that studies the physical principles governing the flow and deformation of materials according to an applied stress. If a material under a strain deforms and does not flow, the solid material is called if the submitted material flows, is that in the presence of a fluid. The fluids have different viscosity characteristics.
Viscosity: Viscosity is the resistance of a substance to change its shape when a force is applied. High viscosity fluids have a certain resistance to flow, low viscosity fluids flow easily. Baseline
solid ink + = High Viscosity (less fluid)
Linseed Ink + = Low Viscoidad (more fluid)
ROLLS: Roll
Drive: Apply once and without pressure (only with the weight of the roller). Soft Roll
: Apply once and with pressure to enter into the grooves of the matrix.
RETURNS:
rub them a little oil to prevent sticking in the roll.