Screen Printing
Screen
printing is a printing technique that uses a woven mesh to support an
ink-blocking stencil. The attached stencil forms open areas of mesh that
transfer ink as a sharp-edged image onto a substrate. A roller or
squeegee is moved across the screen stencil, forcing or pumping ink past
the threads of the woven mesh in the open areas.
Screen printing is also a stencil method of print making in which a
design is imposed on a screen of silk or other fine mesh, with blank
areas coated with an impermeable substance, and ink is forced through
the mesh onto the printing surface. It is also known as silk screening
or serigraphy.
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Screen
printing is arguably the most versatile of all printing processes. The
advantage of screen printing over other print processes is that the
press can print on substrates of any shape, thickness and size. The
substrate or surface on which screen printing can be carried out are too
many to be named. The CD covers you see are all screen printed.
Beautiful cotton fabrics, silk and polyesters can all be screen printed
on. Posters, signs, flyers, advertisements on buses, t-shirts and even
watch dials are screen printed. Thus there are many applications of
screen printing.
A
significant characteristic of screen printing is that a greater
thickness of the ink can be applied to the substrate than is possible
with other printing techniques. This allows for some very interesting
effects that are not possible using other printing methods. Because of
the simplicity of the application process, a wider range of inks and
dyes are available for use in screen printing than for use in any other
printing process
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Utilization
of screen printing presses has begun to increase because production
rates have improved. This has been a result of the development of the
automated and rotary screen printing press, improved dryers, and UV
curable ink. The major chemicals used include screen emulsions, inks,
and solvents, surfactants, caustics and oxidizers used in screen
reclamation. The inks used vary dramatically in their formulations.
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http://perlengkapansablon.com/blog/2012/02/19/what-is-screen-printing/
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