Minutka black-and-white for photo booths

Minutka black-and-white for photo booths

Minutka photographic paper (reversal) is the photographic paper of high light sensitivity designed to obtain the positive images by chemical image reversal technique. On spectral sensitivity it is an orthochomatic photographic material and it is processed under red light. It is manufactured on resin coated photobase of two kinds of surfaces: smooth glossy and embossed glossy. It is manufactured in rolls and it is intended for application in photobooths.

Fields of Application

Minutka black-and-white reversal photographic paper is designed to obtain half-tone images by chemical image reversal technique in a photo booth of small-sized printing.

Characteristics

Minutka photographic paper is manufactured on resin coated base of two kinds of surfaces: smooth glossy and embossed glossy.

Sensitometric indices of Minutka photographic paper

Name of indices Value of indices of photographic papers
Smooth glossy Embossed glossy
Speed, S, GOST units, 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-Photographic processing conditions of the photographic paper:

Developing solution

  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

Bleaching solution

  1. Potassium dichromate – 160,0 g
  2. Sulphuric acid – 320,0 g
  3. Distilled water - up to 1 liter

Clarifying solution

  1. Sodium sulphite (anhydrous) - 100,0 g
  2. Distilled water - up to 1 liter

Reducing solution № 1

  1. Thiocarbamide - 10,0 g
  2. Potassium hydroxide - 60,0 g
  3. Distilled water - up to 1 liter

Reducing solution № 2

  1. Sodium sulphide 9-hydrous - 3,2 g
  2. Distilled water - up to 1 liter

 

Stages of processing conditions of the photographic paper

Name of the stages 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

The photographic paper can be delivered together with the complete set of the photochemicals.

Minutka black-and-white photographic paper is manufactured in 0,0405 x 180m rolls.
On agreement with the customers it is possible to manufacture photographic papers of other sizes.

Guaranteed shelf life of the photographic paper is 12 months.

If you are interested in purchasing this article, please contact us: e-mail newslavich@gmail.com

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