Users Instructions ImagOn
Ultra photopolymer films
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19. Making a Transparency for 4
Color Intaglio-Type.
- On your computer create
or import an image into Photoshop
- Set the Mode to
CMYK
- Make sure the image
extends to the end of the file, so that the measurement
of the image is correct
- Select the Channels
Palette
- Select Cyan, Magenta and
Yellow channels and Gaussian Blur by 2 pixels... add
Noise of 2 pixels...... And set the Curves between 10 and
90 depending on the original image. (The darker the image
the greater the number.)
- Go to the Black Channel
and only set the Curves to between 10 and 90 (The darker
the image the greater the number.)
- Cut the lnkjet Film
Transparency so it is about 1" larger than the image
size.
- Print out each Channel
onto the InkJet film transparency on the Epson
3000.
- Use only the black ink
setting. Set the Epson printer to highest resolution of
1440 dpi and also set registration marks and label. NB
The best Inkjet Transparency film to use is made by Azon
Color 4 ml clear film Number 787N or 788.
- After each of the
separated color transparencies are made prepare identical
sized pieces of copper plate.
- Apply ImagOn to the
plates as described in the Quick Start Guide.
- Expose each of the
four-color transparencies to each plate. Make sure that
the transparencies are registered exactly in the same
position on each Imagon plate.
- Process the plates as
normal.
- Print the plates, one on
top of the other, using a registration system that
ensures identical registration from one plate to the
other.
- The plates will then be
printed with the four-color plates in the following color
sequence... Yellow, Cyan, Magenta and fm ally Black. To
achieve the best color balance mix up the colors as
follows:
20. Etching
Ink Preparation for 4 Color Intaglio-Type
Mixture
- To one unit of Graphic
Chemical Process Yellow 1 unit of Diarylide yellow, add 2
units of Gamblin extender plus 3 units of
Setswell
- To one unit of Graphic
Chemical Process Blue add 1 unit of Ultramarine Blue add
2 units of Gamblin extender plus 3 units of
Setswell
- To one unit of Graphic
Chemical Process Magenta add 2 units of Gamblin extender
plus 3 units of Setswell
- One unit of Graphic
Chemical Black add 2 units of Gamblin extender plus 3
units of Setswell
Before you print the
intaglio paper should be run through the etching press, with
the same pressure as would be used for printing, in both
directions rotating the paper from the length to the
width.
Use the
"back-button" to go back to the ImagOn
pages
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