Cotton-polyester blends
 

They are not all the same.

Generally speaking, I will avoid using a loosely woven, 100% polyester fabric in a quilt top.

As far as that goes, I will avoid using a loosely woven, 100% cotton fabric in a quilt top.

If the fabric can handle my iron set at cotton using steam - I will use it "like a cotton" -

It seems like a fabric can tolerate a higher iron temperature setting if used with steam than used dry.

But it is always good to test on a scrap first. I know that,because I did not always do that. Crinkled polyester will not uncrinkle!

I don't use poly at all. I like cotton only and that is the only thing I have in my stash.

Years ago I started a stash of polyester blend fabrics, they were in at the time. The 100% cottons were horrible then, wrinkles couldn't even be ironed out. If it is possible to use up the 100% cotton fabric stash I have, I plan on starting on the polyester blend fabrics. Same with anything, use what you want.

Love all cotton, prefer it to use. Most of my stash is all cotton. Same if I buy a blouse in Wal Mart, it has to be cotton because it breathes and is cool to wear when it gets hot outside. some people 'sweat' at night and cotton works better and keeps them cooler. I was surprised in Corpus Christi to find out quilters do not use batting in their 'quilts'. Too hot for the climate, especially in baby quilts.

I am by no means an expert, but I do use blends sometimes because I recycle. I honestly don't think it should matter that much.

Someone donated (to our church) enough 7” poly blend blocks to make about 4 lap size quilts so I used them. They weren’t fun to sew with. I made 2 and quit. Might cut remainder into dog bed stuffing.

I don't mind using a blend that appears to be cotton in a quilt if the color is what I want. I haven't used much in any quilt, so I don't worry. The star fabric in my grandson's QOV was a blend, but I liked the print. I didn't buy it. Someone here included it my package when I purchased fabric from her. Do I purchase a blend - no, but, again, I love color so I might for that reason.

I will use a blend if the cotton is at least 70%. It also depends on the feel of the fabric. It has to "feel" like cotton and not be stiff and scratchy.

I believe last year or in 2016 at the Houston show, a lady was interviewed who won a ribbon, and they asked her how she got the one black fabric to shine. I think they were all surprised when she said it was a poly blend fabric and she used it for that reason. The quilt was beautiful.