Lightfastness Test - Red / Brown

[delda]

Preliminary reading: Lightfastness Test - Black.

 

Result for

1. Black inks
2. Blue inks
3. Red / brown inks (this post)
4. Violet / green inks

 

Following the same experimental setup, here is the result for fountain pen red / brown inks:

 

(1) Between 0-100 hours of exposure

 

(2) Between 0-400 hours of exposure

 

[LizEF]

Thank you for doing all these and posting the results!  Very informative.