Final answer:
Nylon is most affected by oil-based stains.
Step-by-step explanation:
Nylon is most affected by oil-based stains. Oil-based stains are typically difficult to remove from fabrics, including nylon, because oil and water do not mix. The hydrophobic nature of oil repels water, making it challenging to remove the stain. The term "nylon stains" is not specific, and the meaning could vary based on the context.
To provide more accurate information or guidance, it would be helpful to have additional details about the specific context or application you are referring to. If you have a specific type of nylon stain in mind, such as stains on clothing or stains in a laboratory setting, you may want to provide more details for a more targeted response.