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Cyanotype - Materials, facilities and equipment check list:

Cyanotype - Recipe:

There are many different recipes for the Cyanotype but one seems to be definitive. The Cyanotype process yields a distinctive metallic blue on the paper base. It is also ideally suited to printing on a fabric such as washed cotton or linen When laundering garments printed with Cyanotype, treat as a delicate fabric. As the negative is contact printed in sunlight the image will be the same size as the neg.

 

Prepare the two stock solutions and store separately in brown small bottles. Stored this way they will keep for approximately 6 weeks. Gently shake before use and mix equal parts.

   
Alternative recipe
Simple Cyanotype
SOLUTION A:

Ammonium Citrate of Iron or Ammonium Ferric Citrate (Green Scales or Powder) Ammonium Citrate of Iron or Ammonium Ferric Citrate (Green Scales or Powder) ( Brown Powder will work but appears to react slower)

GPR (98%) grade of purity is adequate for all chemicals

Before use, read Health hazards)

68 grams
25grams
Oxalic acid
Before use, read Health hazards)
1.3gram
Not applicable
 
Mix with distilled water to make 250ml and store in a brown glass bottle
Mix with distilled water to make 125ml and store in a brown glass bottle
SOLUTION B:

Potassium Ferricyanide (not ferrocyanide)

Occasional some chemicals may be ladled in a foreign language

(analar quality is more refined and also more expensive - it is not necessary GPR (98%) grade of purity is adequate for all chemicals )

Before use, read Health hazards)

23 grams
17gr

Mix with distilled Water to make

125ml

Oxalic Acid
(Before use, read Health hazards)
1.3gram
Not applicable
Ammonium bichromate
(Before use, read Health hazards)

0.5 gram

Mix with distilled water to make 250ml and store in a brown glass bottle

Not applicable

Mix with distilled water to make 125ml and store in a brown glass bottle

Store solutions A & B in separate bottles until ready to use.

Method: - Mixing the Chemicals

Step 1.

When you are ready to coat your paper, combine equal amounts of solutions A and B under subdued light such as a red or yellow safe light. For optimum results, try to mix about the amount needed during one day.

 

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