Production Description

Gelatin is the best medium known for making photographic emulsions.

Gelatin for photographic use is primarily Type B alkaline processed gelatin, especially for emulsion preparation. Type A gelatin has limited application for top coating and subbing. Although cattle hides have been used, Type B photographic gelatin is generally made from ossein derived from bone.

Specifications for type B bone photographic gelatin

Item	Standards
Moisture, %	10.5 – 13.0
pH	5.65 – 5.85
Viscosity 6.67% 60 °C, mps	74.0 – 95.0
Gel strength 6.67% 60 °C, grams	250 – 310
Absorbance, 420nm	0.0 – 0.158
Absorbance, 650nm	0.0 – 0.032
Viscosity loss 37 °C 24hours, %	< 5%

Use: Film, photographic paper, ink-injection photographic paper.

Package: 25kgs net kraft paper bag on pallet shrink-wrapped.