Description
Minutka – reversal black-and-white photographic paper especially designed for photo booths needs.
Characteristics
Minutka photographic paper is manufactured on resin coated base of two types of surfaces: smooth glossy and embossed glossy.
| MINUTKA | Specifications | |
| Smooth glossy | Embossed glossy | |
| Speed, ISO, not less than | 100 | 100 |
| Useful exposure latitude, Lg | 1,0-1,4 | 1,0-1,4 |
| Minimum Density, Dmin, not more than | 0,10 | 0,10 |
| Maximum Density, Dmax, not less than | 1,40 | 1,30 |
Chemical processing
Developer
- Sodium Sulphite (anhydrous) – 70,5 g
- Phenidone – 0,4 g
- Hydroquinone – 32,5 g
- Potassium Bromide – 6,0 g
- Sodium Hydroxide – 40,0 g
- Distilled Water – up to 1 liter
Concentrated Bleach
- Potassium Dichromate – 160,0 g
- Sulphuric Acid – 320,0 g
- Distilled Water – up to 1 liter
Clarifier
- Sodium Sulphite (anhydrous) – 100,0 g
- Distilled Water – up to 1 liter
Reducer № 1
- Thiocarbamide – 10,0 g
- Potassium Hydroxide – 60,0 g
- Distilled Water – up to 1 liter
Reducer № 2
- Sodium Sulphide 9-hydrous – 3,2 g
- 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 either Reducer № 1 or Reducer № 2.
| Processing conditions and procedures | ||
| Procedure | Processing time, sec. | Temperature, degrees Celsius |
| Development | 24 | 30 |
| Washing | 24 | 20 |
| Bleaching | 24 | 30 |
| Washing | 12 | 20 |
| Clarification | 24 | 30 |
| Washing | 12 | 20 |
| Reduction | 12 | 30 |
| Washing | 24 | 20 |
