ASTM D5909-20,Standard Test Method for Drying Time of Oxidative-Drying Printing Inks by Squalene Resistance.The size of this pdf file is 500KB.
ASTM D5909-20 utilizes a modified rub tester and is intended to serve as a “referee” procedure when laboratories, using less rigorous test procedures (see Appendix X1), cannot agree on their results.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
ASTM D5909-20 pdf can be downloaded for free here.
Inadequate setting or drying of sheetfed inks, or both, can cause blocking of stacked prints with subsequent loss of product. “Setting” of an ink refers to the rapid rise in viscosity of the printed ink film, sometimes accompanied by surface drying, that prevents transference of the undried ink film to adjacent surfaces under light pressure. “Setting” is a property of the ink-substrate combination. Inadequate drying may be due to several factors, but the primary causes are: (1) omission of metallic driers from the ink, improper ink formulation.
Keywords:Drying,Drying And Dessication,Drying Time,Oxidative Drying,Physical Properties,Printing Inks,Squalene Resistance
ASTM D5909-20 pdf free download