It agrees with the CEI 06-59 standard of the European Committee of Associations of Paint and Printing Ink Manufacturers. By fastness of an ink to soaps we mean the fastness of a sample print, examined according to UNI 5777, and prepared according to UNI 5772. By fastness of a print to soaps we mean its resistance towards a solution of Highly concentrated soda soaps with 89% fatty acid content, composed of tallow, peanut and coconut fat. Alterations in the print and fading are evaluated. The soap must not contain perfume or essential oils. Equipment. Method.
UNI 5777-1966 history
1966UNI 5777-1966 Testing of inks for printing trade. Resistance to soaps.