Kodak Printer Accessories manual Gold Protective Solution GP-1, Blue Toner T-26

Save the remainder of Stock Solution B to replenish the toning bath as you use it. The volume that you add will depend on the number of prints you tone and the toning time. For example, if you tone to a warm-brown hue, add 4 mL of Stock Solution B after every fifty 8 x 10-inch prints (or equivalent).

1.Place a tray in a tempered water bath. Pour the clear toner solution into the tray, and heat the water to 43°C (109°F). Maintain this temperature during toning.

2.Immerse a thoroughly washed print in the toning solution for 5 to 20 minutes until it has the tone you want. (It’s helpful to keep an untoned print on hand for comparison.)

Note: Some sediment will form in the tray, especially if you tone more than one print at a time. The sediment is harmless, but it can form a scum on the print. If scum forms, wipe the print with a wet sponge or wet cotton immediately after toning.

3.Remove the print from the toner and rinse it in cold water.

Wash fiber-base prints in running water at 18 to 24°C (65 to 75°F) for one hour, or use Hypo Clearing Agent to reduce the wash time; wash resin-coated prints for 4 minutes.

Gold Protective Solution GP-1

Prepare the solution as follows. For best results, mix it right before you use it.

Gold Protective Solution GP-1

Water at 20°C (68°F)	750 mL
Gold chloride,* 1% stock solution†	10 mL
Sodium thiocyanate (liquid)	15.2 mL
Water to make	1 L

*Gold chloride is a deliquescent chemical; it will liquefy rapidly in a normal room atmosphere. Store the chemical in a tightly stoppered bottle in a dry atmosphere.

†To prepare a 1% gold chloride solution, dissolve 1 gram of gold chloride in 100 mL of water. Or you may want to obtain a 1-percent solution from a photographic dealer.

Add the 10 mL of gold chloride stock solution to the 750 mL of water. Dissolve the sodium thiocyanate solution separately in 125 mL of water. Then slowly add the sodium thiocyanate solution to the gold chloride solution while stirring rapidly.

1.Immerse a thoroughly washed print in the solution at 20°C (68°F).

2.Treat the print for 10 minutes or until you can see a very slight change to a bluish black in the image tone.

Wash fiber-base prints in running water at 18 to 24°C (65 to 75°F) for 10 minutes; wash resin-coated prints for 4 minutes.

Blue Toner T-26

The contrast and density of prints treated in Blue Toner T-26 appear to increase. You can compensate for these increases by reducing the exposure time slightly when you make your prints. The exact tone you obtain will vary with the paper and developer you use. A soft gray-blue is more common than a saturated blue.

Note: Blue Toner is fairly expensive toner to produce. For best results, prepare the solution right before you use it. If you tone prints one at a time in Blue Toner, the first few prints will tone the most, and the last few may not tone at all. To obtain consistent results, immerse up to five prints in the bath simultaneously.

Mix the toner working solution as follows:

Blue Toner T-26

Water at 52°C (125°F)	937 mL
Gold chloride,* 1% stock solution†	40 mL

Mix the gold chloride solution with the water. Then, while stirring, add—

Thiourea	1 g
Tartaric acid	1g
Sodium sulfate (anhydrous)	15 g

*Gold chloride is a deliquescent chemical; it will liquefy rapidly in a normal room atmosphere. Store the chemical in a tightly stoppered bottle in a dry atmosphere.

†To prepare a 1% gold chloride solution, dissolve 1 gram of gold chloride in 100 mL of water. Or you may want to obtain a 1-percent solution from a photographic dealer.

Stir until the chemicals dissolve completely.

Note: A fine white precipitate may appear in the solution if you store it overnight. This precipitate will not interfere with toning.

1.Immerse a thoroughly washed print in the toning solution adjusted to 20°C (68°F) or 38 to 40°C (100 to 104°F).

2.Tone with occasional agitation for 8 to 45 minutes at 20°C (68°F), or for 2 to 15 minutes at 38 to 40°C (100 to 104°F).

Note: The toning action is so gradual that only a small amount of agitation is necessary to prevent streaking. Toning will occur in the highlights first and the shadows last. Partial toning may produce blue highlights and untoned shadows.

Wash fiber-base prints in running water at 18 to 24°C (65 to 75°F) for at least 30 minutes; wash resin-coated prints for 4 minutes.

8 Toning Black-and-White Materials • G-23