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HOME > PAPER > WARM > CB ART
Photo Paper: CB Art
CB ART is a premium double weight photographic
paper with a high quality chlorobromide emulsion. Its exceptional fiber
base gives it un-matched whiteness (300g).Its silver content allows for
a wide exposure range. Full development brings out remarkable gradation.
It comes in glossy surface and gives a warm, brown image tone.
Three grades are available :
PRODUCT |
ISO CONTRAST |
CB ART
2 |
120 |
CB ART
3 |
90 |
CB ART
4 |
70 |
Handling
Red
safelight as for bromide paper is recommended. For instance, ENCAPSULITE
R10 or WRATTEN 1A allows good darkroom lighting. It is a good idea to
test for safelight fog from time-to-time.
Exposure
Double
weight glossy paper can be exposed with all enlarger light source.
Development
Process
in any good quality paper développer at 20°C (68°F) for
1 1/2 to 2 minutes with continuous agitation.The use of warm tone developers
such as Agfa Neutol-WA, Kodak Selectol, etc., will yield maximum warm
tone results. Normal capacity : 1 - 2 1/2 sqm/litre.
Stop Bath
An
acid stop bath is optional but recommended. It quickly stops dévelopment
by neutralizing alkali. This also helps extend fixer life. Dilution :
25 cc of 28% acetic acid in 1 litre of water. Stop bath time : 15 seconds
or 20 to 30 seconds of water rinse.
Fixing (Temps Maximum :
10 Minutes)
Treat in a conventional sodium thiosulfate
fixer for a minimum of 5 min. at 20°C. Normal fixing capacity is 1
_ sqm/ litre. A two-bath fixing method (at 2 _ min. per bath) may be used
to avoid under-fixing. When the first bath is exhausted, replace it with
the second bath and mix a fresh « second bath ».
With ammonium thiosulfate (« rapid ») fixers, treat prints
for 30 to 45 seconds only, then give a thorough pre-wash for 5 min. Next,
treat with a wash-aid (see « WASHING », below) with frequent
agitation for 10 min, before transferring to a final wash.
After-Treatments
CB
ART responds well to bleaching and toning. To increase the impression
of warmth, you may wish to use a toner such as Kodak Brown toner or a
sepia toner
Washing
The
use of a wash aid (such as Kodak Hypo Clearing Agent) will reduce your
wash time and increase the efficiency of your washing. As well, it will
help guarantee the permanence of your photograph.
Wash PRESTIGE in running water at a rate fast enough to completely change
once every 5 minutes. Wash time is 1 hour at 20°C (68°F) or 30
min. if a wash aid has been used.
Drying
To
effect even and rapid drying, you may use a wetting agent as a final rinse.
Excess water should be removed from the surface of prints with a clean
sponge or squeegee. Prints may then be dried in dust-free air on drying
screens or in a clean photo-blotter.
Finishing
CB
ART may be retouched, spotted and mounted using normal methods.
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