A Comparison of the Physical Properties of Different Gelatine Types for Inkjet Applications

Abstract

Within the last years gelatine has become, among the usage in classical Photographic materials, also a very important component for glossy Inkjet media. This can be deduced to the combination of gelatine properties like high light /ozone stability, high gloss of the surface, high color densities of the printouts and reasonable dry times.Besides these classical quality parameters for glossy Inkjet media, which were examined and presented in detail for different gelatine types in the past, also other gelatine properties are crucial with respect to the usage in Inkjet coatings.The knowledge of differences in swelling capacities and kinetics, surface tensions and the rheological behavior of gelatine solutions is also important for the production of Inkjet media and were studied in detail for different gelatine types.In the present paper the results of these measurements for different gelatine types will be shown and compared.From the results it can be concluded that these properties, in contradiction to the above mentioned quality parameters (light stability etc.) are different for the investigated gelatine types. This could lead to an optimized usage of gelatine in the production of Inkjet materials.