You could try methylene chloride (aka dichloromethane) to get the tape off. You can buy it on the bay, at least in the UK. I bought a boxed Hy-score from the US where the lid was
completely covered in tan tape. After carefully sponging and soaking it for while with the solvent the tape peeled off OK without any damage to the underlying cardboard. or printing. You can just about see lines where the tape edges came, but the the result was a vast improvement over how it looked when first received.
https://imgur.com/a/OdSvj. The label inside the lid was completely unaffected, except that the solvent removed some old oil and grease stains and its apperance was actually improved.
https://imgur.com/a/F5rCf
The methylene chloride is a powerful solvent for paint and the type of adhesive used on sticky tapes, but doesn't attack paper, cardboard, printing inks and pigments or water-based adhesives if used carefully. It evaporates quickly with no residues. The downside is that it is toxic if breathed in large amounts so best used outside or in a large room.