Stop and think about it. Don't just take someone's word about it. As fruitloop says, a designer can say anything, with the hope you'll believe they have the right to limit your use of the product you just bought. However, they have no right to tell you what you can do with it. Once they sell it, it's yours. That is, you cannot copy their work and sell it. A quilt designer can copyright their pattern. That means you cannot sell their pattern. That does not mean you can't sell a quilt made with their pattern. You can sell 1,000 quilts made with their pattern. They have no rights to anything except the pattern, itself. They can only copyright what ever they themselves make. In this case, it's the pattern - the paper pattern (or download, or whatever).
The fabric designer has the same rights. They design the fabric. You can't steal their fabric design. That's all their copyright protects. You cannot duplicate their fabric design. However, you can use the fabric they designed for toilet paper if you choose. It's yours. You bought it. You can do anything you want with it, other than copying the design. If you want to sell it on the street corner, you can. You just can't use their design to have more fabric made.
You can read copyrights. They are online. You can only copyright a "something". You cannot copyright an idea or a theory or what someone might do with your "something". It has to be a specific "something" you can describe that is different from something that already exists. It has to be something you found, designed, invented, engineered, etc.
They did not make your quilt. They have no control over your quilt. It's not covered by the copyright. Courts have always ruled that after an item is sold, the copyright holder has no rights. That means, once you buy a yard of fabric, you can do whatever you want with it, other than duplicating it for sale.
bkay