COMPOSITION OF VARNISHES FOR GRAPHIC ARTS FORMULATED WITH SUBSTANCES USED IN THE FOOD SECTOR

摘要

The varnishes in object are made of: shellac (E904) in alkaline water solution with eventually the addition of food and/or food additives marked by the letter "E" with relative code number. Exception is the case where the varnish has to be drawn on fat traditional offset inks: in that case in addition to the a/m components it is necessary a very small percentage of surfactant.;The percentage of the various components is very variable as it depends on the:✔ Kind of industrial application✔ Viscosity you wish to obtain✔ Percentage of dry in the formulation;It is possible to obtain varnishes completely gluten-free and lactose-free.;The field of application concerns the graphic arts in general.