Screenprinting

Screen printing is a printing technique whereby a mesh is used to transfer ink onto a substrate, except in areas made impermeable to the ink by a blocking stencil. It derives from very ancient stencilling traditions.

History

Stencilling to create visual images dates back to representations of hands on Paleolothic cave walls.

Screen printing using silk mesh first appeared in a recognizable form in China during the Song Dynasty (960–1279 AD). It was then adapted by other Asian countries like Japan, and was furthered by creating newer methods.

Screen printing was largely introduced to Western Europe from Asia sometime in the late 18th century, but did not gain large acceptance or use in Europe until silk mesh was more available for trade from the east and a profitable outlet for the medium discovered.

Photoscreen processes started to be developed in the 1910s introducing photo-imaged stencils for commercial printing. Several printers experimenting with photo-reactive chemicals used the well-known actinic light–activated cross linking or hardening traits of potassium, sodium or ammonium chromate and dichromate chemicals with glues and gelatin compounds. Roy Beck, Charles Peter and Edward Owens studied and experimented with chromic acid salt sensitized emulsions for photo-reactive stencils. Commercial screen printing now uses sensitizers far safer and less toxic than bichromates. Currently there are large selections of pre-sensitized and “user mixed” sensitized emulsion chemicals for creating photo-reactive stencils.

A group of artists who later formed the National Serigraphic Society, including WPA artist Anthony Velonis, coined the word Serigraphy in the 1930s to differentiate the artistic application of screen printing from the industrial use of the process.”Serigraphy” is a compound word formed from Latin “sēricum” (silk) and Greek “graphein” (to write or draw).

The Printers’ National Environmental Assistance Center says “Screenprinting is arguably the most versatile of all printing processes. Since rudimentary screenprinting materials are so affordable and readily available, it has been used frequently in underground settings and subcultures, and the non-professional look of such DIY culture screenprints have become a significant cultural aesthetic seen on movie posters, record album covers, flyers, shirts, commercial fonts in advertising, in artwork and elsewhere.

1960s to present

Andy Warhol

Sister Mary Corita Kent, gained international fame for her vibrant serigraphs during the 1960s and 1970s. Her works were rainbow colored, contained words that were both political and fostered peace and love and caring.

American entrepreneur, artist and inventor Michael Vasilantone started to use, develop, and sell a rotatable multicolour garment screen printing machine in 1960.[4] Vasilantone later filed for patent[5] on his invention in 1967 granted number 3,427,964 on February 18, 1969.[5] The original machine was manufactured to print logos and team information on bowling garments but soon directed to the new fad of printing on T-shirts. The Vasilantone patent was licensed by multiple manufacturers, the resulting production and boom in printed T-shirts made this garment screen printing machine popular. Screen printing on garments currently accounts for over half of the screen printing activity in the United States.[6]

Graphic screenprinting is widely used today to create mass or large batch produced graphics, such as posters or display stands. Full colour prints can be created by printing in CMYK (cyan, magenta, yellow and black (‘key’)).

Screen printing lends itself well to printing on canvas. Andy Warhol, Arthur Okamura, Robert Rauschenberg, Roy Lichtenstein, Harry Gottlieb and many other artists have used screen printing as an expression of creativity and artistic vision.

Printing technique

There are various terms used for what is essentially the same technique. But they all have the following in common:

  • Use of a frame (generally wood or aluminium) on which a mesh  is mounted under tension. The mesh can be of different types: eg silk, polyester, nylon or metal and of varying degrees of fineness depending on the type of surface to be printed.
  • A stencil is formed on the mesh by blocking off parts of the screen in the negative image of the design to be printed; that is, the open spaces are where the ink will appear on the substrate. The stencil can be made through different techniques: direct stencils made with photoscreen techniques or using masking solutions and indirect stencils used as masks.
  • Mesh/frame preparation: The surface to be printed (commonly referred to as a pallet) is coated with a wide ‘pallet tape’ to protect the ‘pallet’ from any unwanted ink leaking through the screen and potentially staining the ‘pallet’ or transferring unwanted ink onto the next substrate. Next, the screen and frame are lined with a tape. The type of tape used in for this purpose often depends upon the ink that is to be printed onto the substrate. These aggressive tapes are generally used for UV and water-based inks due to the inks’ lower viscosities. The last process in the ‘pre-press’ is blocking out any unwanted ‘pin-holes’ in the emulsion. If these holes are left in the emulsion, the ink will continue through and leave unwanted marks. To block out these holes, materials such as tapes, speciality emulsions and ‘block-out pens’ may be used effectively.
  • A blade or squeegee is moved across the screen to fill or ‘flood’ the open mesh apertures with ink, and a reverse stroke then prints the image as the screen touches the substrate momentarily along a line of contact. This causes the ink to wet the substrate and be pulled out of the mesh apertures as the screen springs back after the blade has passed.
  • One colour is printed at a time, so several screens are layered to produce a multicoloured image or design. Hinge clamps keep the screen in place for easy registration

 

Video Tutorials

Overview

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Speedball Art

Screen Printing Products

How to Use Speedball Screen Print Materials

Stencils

Cut paper

Drawing Emulsion

Drawing fluid

Drawing fluid

Drawing fluid

Photo

Artists

Andy Warhol

Will Kuhlke

Oli Fowler

Barton

Catspit

Monoprint screenprints

 

Poster Art

Valdez

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https://www.youtube.com/watch?v=adMYcD7lScQised’ area of varnish is created. When cured at the end of the process, the varnish yields a Braille effect, hence the term ‘High Build’.

References

Adam, R. and C. Robertson (2003). Screenprinting: the complete water-based system. London, Thames & Hudson.

Grabowski, B. and B. Flick (2009). Printmaking: A Complete Guide to Materials and processes. London, Lawrence King Publishing.

Pogue, D. (2012). Printmaking Revolution : new advancements in technology, safety and sustainability. New York, watson-guptill publications.

Stromquist, A. (2004). Simple Screenprinting: basic techniques and creative projects. New York, Lark Books.

Williamson, C. (2011). Reinventing Screenprinting. London, A&C Black.

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