silkscreen lessons 3 5 6
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Preparing & Exposing
Photographic Silkscreens
For use with Lesson 3
FOR EDUCATION USE ONLY2009 The Andy Warhol Museum, a museum of Carnegie Institute. All rights reserved. You may view and download the materials posted in this
site for personal, informational, educational, and non-commercial use only. The contents of this site may not be reproduced in any form beyond itsoriginal intent without the permission of The Andy Warhol Museum. Except where noted, ownership of all material is The Andy Warhol Museum,
Pittsburgh; Founding Collection, Contribution The Andy Warhol Foundation for the Visual Arts, Inc.
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In a darkened room or in a room witha yellow safe light, pour the emulsioninto a scoop coater
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Coat the screen, applying 2 thin coats ofemulsion on each side of the screen.
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If your scoop coater is
smaller than the width ofyour screen, coat asshown in this slide.
Once you have one coat
on this side, turn thescreen upside down to
apply the second coat.Then apply two thin
coats onto the back sideof the screen, againflipping the screenupside down in between
coats.
Wipe off any excess
emulsion that gathersaround the edges.
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Store the coated screens
in a dark room or light-tight box until they are dry.Screens should dry with
the flat side down (theside you used the
squeegee on should be
facing up). They need todry perfectly flat. If thescreen is tilted even theslightest bit, then theemulsion might dry
unevenly and run off the
screen.
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If you are coating
more than onescreen, stack them
using small blocks in
between each one.
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Once the screens
are dry they may beput in black plastic
garbage bags until
you are ready toexpose them
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Expose the silkscreen with the students FilmPositives. There are different types of exposing
units. This one is a light table with clear glassand florescent light bulbs.
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This process involves direct contact exposure. There must beno space between the Film Positive and the screen. Build a flat
that is larger than your image, but small enough to fit inside thescreen to ensure direct contact. Cover the flat in padding andblack fabric to protect the screen.
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Weigh down the flat with something heavy.
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A screen exposurechart should be
included with youremulsion. If not, you
will need to testexposure times. A
good time to start withis 5 minutes.
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After your exposuretime is up, rinse the
screen on both sides.The emulsion that wasnot exposed to light(because it was
blocked by the opaqueblack areas of the Film
Positive) will washaway. Wash the
screen until there arevery few white bubbles
remaining. Store thescreen on a flat
surface to dry or use afan.
When dry, screen is
ready to proof.
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Cutting Stencilsfor use with lesson 5
FOR EDUCATION USE ONLY2009 The Andy Warhol Museum, a museum of Carnegie Institute. All rights reserved. You may view and download the materials posted in this
site for personal, informational, educational, and non-commercial use only. The contents of this site may not be reproduced in any form beyond itsoriginal intent without the permission of The Andy Warhol Museum. Except where noted, ownership of all material is The Andy Warhol Museum,
Pittsburgh; Founding Collection, Contribution The Andy Warhol Foundation for the Visual Arts, Inc.
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The first color stencil isLayer 1 the background
color. This should bethe lightest color of your
color combination.
Draw the background
rectangle or square inthe center of your
paper.
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Cut this shape by
using a cutting tool.
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Using the students
collage as a guide, tracethe shape(s) for Layer 2
in the center of another
piece of paper.
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Cut these shapes, as
well.
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Repeat the processfor Layer 3.
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Stencil and Photographic
Silkscreen Printing
For use with Lesson 6
FOR EDUCATION USE ONLY2009 The Andy Warhol Museum, a museum of Carnegie Institute. All rights reserved. You may view and download the materials posted in this
site for personal, informational, educational, and non-commercial use only. The contents of this site may not be reproduced in any form beyond itsoriginal intent without the permission of The Andy Warhol Museum. Except where noted, ownership of all material is The Andy Warhol Museum,
Pittsburgh; Founding Collection, Contribution The Andy Warhol Foundation for the Visual Arts, Inc.
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Tape your silkscreen using two-
inch masking tape.
Tape both sides of screen.
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Place your Layer 1
stencil on top of a piece
of your final printing
paper. Make sure the
open area of the stencil
is in the center of thefinal printing paper.
Keep the stencil
From moving by taping
it to the printing paper
using two small pieces ofblue painters tape.
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Place your silkscreen in
the hinge clamps,
securely tightening the
clamps.
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Register the stackedstencil and print paper to
the silkscreen. Use tape
brackets on the print
surface/table to mark the
corners of 3 sides of the
printing paper. Thesemarks will be guides so
that each piece of paper
is placed in the same
place on the table,
ensuring that the printed
shape is in the sameplace on each piece of
paper.
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Carefully remove the
small pieces of blue
painters tape holding
the stencil in place on
the final paper.
* Be careful to not
move the stencil from
its position.*
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Carefully close the
screen over the stencil
paper.
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Print the first color
using enough ink for
adequate coverage.
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The stencil will stick to
the back of the
silkscreen because the
ink acts as an adhesive.
For large areas of color
(like the background
Layer 1) you may need
to flood the silkscreen or
make two passes with
the squeegee.
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Continue this process,
placing each piece of
paper inside the tape
marks until all 10 pieces
of paper are printed.
Remove the stencil from
the silkscreen anddiscard.
Clean the silkscreen and
squeegee thoroughly.
The two-inch tape you
placed around the edges
of the silkscreen in Step# 1 should remain until
you are finished printing.
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When Layer 1 of your
print is dry, place the
photographic Film
Positive for Layer 4 onto
your print and register it
to the first printed layer.Tape this to your print
using two small pieces of
blue tape to ensure the
Positive does not move.
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Register your next
stencil (Layer 2) to the
Film Positive. Once it
is in the correct place,
use two small pieces
of painters tape to
secure it to the print.
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Remove the Film Positive.
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Place the stacked
stencil and print paper
under the silkscreenand use tape to mark
the edges of your
print, as in Step #4.
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Repeat the previous steps for printing and
cleaning the screen.
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Register your next stencil (Layer 3) to the
Film Positive. Once it is in the correct
place, use two small pieces of painters
tape to secure it to the print.
Remove the Film Positive
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Repeat the previous steps for
printing and cleaning the screen.
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To print Layer 4,
register your Film
Positive to your print
using small pieces of
painters tape tosecure it to the print.
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Clamp your second
silkscreen with the
photographic image
burned onto it in the
clamps and securely
tighten.
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Remove the Film Positive.
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Print your final layer and
clean your screen.