Let me first say that we did not make the banner stand in the picure. As much as I love Southwest Airlines, whoever did make them made a mess.
What’s happened is that they made the banners out of vinyl, and then put them under tension in a banner stand. We learned a long time ago that when you do that, the banner curls at the edges, in our industry we call it “canoeing.” They probably looked great for a month or two, then they started to curl.
We solve the problem by using a polyester film instead of vinyl.
Since the film is more rigid, it doesn’t stretch in the center causing the edges to curl in. Surprisingly, it’s not much more expensive either. I wish I knew who to contact at Southwest. These banner stands don’t give a very good presentation, and they are such a great airline!