I recently sent Project Linus photos and measurements of 14 of our 27 quilts that are ready for donation. They contacted me last week to say they would like all of them. I already knew that Project Linus requires that all donations be laundered and labelled with their labels prior to donation so I decided today to get started on the washing and drying while I wait for their shipment of labels to arrive.
As you know, the fabrics from our quilts have come from our stashes and each of our stashes have fabric from a variety of places--some purchased, some donated and some scraps or precuts. Some was washed ahead of time and some is not in convenient sizes to make prewashing convenient. Some of us always prewash and some of us don't. So you could say the majority of our quilts contain some fabric that wasn't prewashed.
In order to prevent any colours bleeding I was very generous with the Colour Catchers and sorted the quilts into like colour groups. I used two Colour Catchers per quilt and no detergent. I washed all the quilts using a gentle cycle, low agitation and with a warm/warm setting for the wash and rinse. For every load, including all the light coloured and pastel quilts the Colour Catchers came out very stained. But the biggest surprise was that one of the quilts had some serious bleeding with a big blue stain on the back and multiple problems on the front. This was a quilt that I had made and, while all the yardage was prewashed, the scraps and small pieces were not. I was pretty horrified but decided to rewash it using some detergent this time. I was very relieved to see the stains were gone.
I've mentioned that the majority of quilters in my Virtual Guild, which is based in California but has a worldwide membership, prewash their quilts before donating them. This is a new concept to most of us but, something I would recommend if you are not in the habit of prewashing your fabrics. There's a lot of work that goes into a quilt only to have it ruined after the first wash.
By the way, all of our quilts are coming out of the dryer lovely and soft and very "quilty" looking. I'm pretty sold now on prewashing quilts.