 AMK
GN-51 DAYLIGHT CONTACT FILM |
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| DESCRIPTION |
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 AMK
GN-51 is a high density, medium speed
and high contrast true room light film
that is sensitive to ultraviolet light
source. GN-51 provides excellent dot
for dot or line contacts within a wide
range of processing conditions. The
stable polyester base of GN-51 assures
good dimensional stability for critical
register work. Moreover, the emulsion
side of GN-51 is protected by an anti-abrasion
coating and the base side carries a
non-curl anti-halation layer. In addition,
in order to prevent Newton Rings and
facilitate vacuum draw down, both the
emulsion and the non-curl layers of
GN-51 are slightly matted. AMK GN-51
can be processed with most of the Rapid
Access, as well as lith chemistries
available in the market and has been
coated on 0,10mm. optically clear, permanently
anti-static polyester base to reduce
dust and pinholes. |
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| FEATURES |
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> High maximum density
> Wide exposure latitude
> Excellent image quality
> Very wide development latitude
> Highly visible safelights and outstanding
resistance to room light
> Permanently anti-static polyester
base
> Compatibility with most Rapid Access
and lith chemistries. |
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| COLOR
SENSITIVITY |
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CHARACTERISTIC
CURVE |
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| EXPOSURE |
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Use GN-51 in contact
printing frames equipped with high,
1-1,5 KW light sources such as high-pressure
mercury lamps or Metal halide lamps
that are placed at least 1 meter away
from the frame.
Regardless of the above recommendation,
test exposures should be performed in
each shop to determine optimum results. |
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| RECOMMENDED
RAPID ACCESS PROCESSING |
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| AMK REPRODEV Developer
between the temperature of 32~35ºC for
an approximate development time of 20~40
seconds. |
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| RECOMMENDED
REPLENISHMENT CONDITION |
| Developer |
| AMK REPRODEV |
390ml/m² |
| Fixer |
| AMK REPROFIX |
520ml/m² |
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| DOT
ETCHING |
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| Due to its high density,
GN-51 will etch exceptionally well with
most of the common etches in the market.
However, it is strongly recommended
that the etching be mixed and diluted
according to the manufacturer’s recommendation. |
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| SAFELIGHT |
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It is necessary that
the GN-51 is handled under subdued white,
high illumination yellow light or one
of the safelights indicated below until
it has been developed.
> Encapsulite UV Daylight lamp C-20
white
> 40 watt white fluorescent lamp
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| DIMENSIONAL
STABILITY |
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| Although the GN-51 gives
the maximum dimensional stability obtainable,
any film will change size slightly in
extreme atmospheric conditions. In general,
extreme heat will cause an increase
in size and extreme cold will cause
a decrease in size. In this respect,
please refer to storage recommendations
for optimum results. |
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| PACKAGING |
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| AMK GN-51 film is available
in all standard roll and sheet sizes. |
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| STORAGE |
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| It is highly recommended
that the AMK GN-51 is stored in its
original packaging in cool and dry place,
preferably below 25ºC and 55% relative
humidity. |
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