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PrimeBIO- vegetable oil based process ink series

PrimeBIO- vegetable oil based process ink series

Cobalt free and contains less than 1% mineral oils



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LIGHTFASTNESS

Specification of lightfastness figures in accordance with the international standard C.E.I./02-59.

Lightfastness value:  8 = exceptional       4 = fair
                                       7 = excellent           3 = moderate
                                       6 = very good          2 = poor
                                       5 = good                  1 = very poor
 
In Western Europe, the above-mentioned values can be expressed in number of days as follows:
 
                            June                    April                    March                  December
value                   July                      May                     October               January
                            August                 September         November           February
-----------------------------------------------------------------------------------------------------------------------------------
 
    1                        1                          3                          6                          18
 
    2                        2                          6                          12                        37
 
    3                        4                          12                        25                        75
 
    4                        8                          25                        50                        150
 
    5                        18                        50                        100                      300
 
    6                        35                        100                      200                      600
 
    7                        71                        201                      400                      1200
 
    8                        142                      403                      800                      2400
 
One day = exposure to daylight from 9.00 to 15.00 hours.

WARNING: The above-mentioned figures are indicative. Results can be influenced by matters such as thickness of the ink-layer, ink and/or water additives used during printing, intensity of sunlight, environmental conditions, etc.