So frustrated! I can't get damn ink marks out of the beige leather bag I just got. The leather is in good condition, no tears no wears just full of blue and black ink under the flap, red ink outside and black ink inside. I've washed the bag once and nothing came out with soap and water. After it dried, I tried rubbing alcohol, no luck. Hand sanitizer alcohol. Still no luck. Tried laundry pretreatment. Rubbed it in and washed it off. Ink marks are still there! [emoji20]
Ink is terrible. Most kinds of ink are like dye and are impossible to get out. Once it penetrates the leather, the only thing that will get the ink out will also remove the dye from leather. If all those things have failed, I doubt you will be able to remove it.