Minutka black&white photographic paper

Fields of Application

Minutka – reversal black-and-white photographic paper especially designed for photo booths needs.
Minutka photographic paper is manufactured on resin coated base.

Characteristics

Parameter Value
Speed, ISO, not less than 100
Useful exposure latitude, Lg 1,0-1,4
Minimum Density, Dmin, not more than 0,10
Maximum Density, Dmax, not less than 1,40

Chemical-Photographic processing conditions of the photographic paper:

Developer
1. Sodium sulphite (anhydrous) - 70,5 g
2. Phenidone - 0,4
3. Hydroquinone - 32,5 g
4. Potassium bromide - 6,0 g
5. Sodium hydroxide - 40,0 g
6. Distilled water - up to 1 liter

Concentrated bleach
1. Potassium Dichromate – 160,0 g
2. Sulphuric Acid – 320,0 g
3. Distilled Water - up to 1 liter

Clarifier
1. Sodium Sulphite (anhydrous) - 100,0 g
2. Distilled Water - up to 1 liter

Reducer № 1
1. Thiocarbamide - 10,0 g
2. Potassium Hydroxide - 60,0 g
3. Distilled Water - up to 1 liter

Reducer № 2
1. Sodium Sulphide 9-hydrous - 3,2 g
2. Distilled Water - up to 1 liter


Note
1. While mixing Developer, Phenidone and Sodium Hydroxide shall be dissolved separately.
2. Before using, the Concentrated Bleach shall be dissolved with water at 1:7 ratio.
3. You can use ether Reducer № 1 or Reducer № 2.


Stages of processing conditions of the photographic paper

Name of the stage Processing time, sec. Temperature, оC
Development 24 30
Washing 24 20
Bleaching 24 30
Washing 12 20
Clarification 24 30
Washing 12 20
Reduction 12 30
Washing 24 20

Minutka black-and-white photographic paper is manufactured in 0,0405 x 180m rolls.
Photographic papers of other sizes may be manufactured on request.

Guaranteed shelf life of the photographic paper is 12 months.