Originally Posted by
SherylM
Well, I got my answer. Did a Google search and this is what I found:
"Heat or chemicals can set the lines and make them difficult to remove. Do not press your top, and do not add detergent to the cold water soak."
http://www.christianlanequilters.com...age/589354.htm
I do know one thing...I've decided that whenever I get ready to work on it, I'm taking it to a longarmer to have it basted! 
Make sure to tell the longarmer not to press it and why.
Edited to add so jealous of your thrift store find!!