• Here are a few options
• depending on the exact nuance you want to convey
• all suitable for South American Spanish: **Option 1 (Most common and direct for a defect report):** "**Manchas por transferencia en el reverso debido a la manipulación durante la impresión.**" *(Transfer marks on the reverse due to handling during printing.)* **Option 2 (Focusing on the rubbing/friction aspect):** "**Roce durante la impresión que ha causado algunas marcas de transferencia en el reverso.**" *(Rubbing during printing that has caused some transfer marks on the reverse.)* **Option 3 (Slightly more concise):** "**Defecto de impresión: Marcas de transferencia en el reverso por roce.**" *(Printing defect: Transfer marks on the reverse due to rubbing.)* I recommend **Option 1** as it's very clear and commonly used to describe such manufacturing defects.

Características:

• Estampado oficial del club para el mediocampista español Javi Martínez #8