I have been struggling with this issue for several months and have tried a ton of materials (Quickprint, Colorprint, Evolution, Solutions Opaque, Solutions Clear, Stretchprint, Expressprint...).
Siser just recently came out with a product called Smart Pro, which you heat press onto your design after it is pressed onto the shirt. You then peel off the Smart Pro and a thin protective layer is left. It is designed for Siser materials like Evolution, but I have been testing it on Quick Print for about a month with decent results.
I have a shirt that I have washed about 20 times with Quick Print and Quick Print with Smart Pro, and the Smart Pro helps tremendously. The only downfall is that it makes the QP lose some of its stretch, causing a few slight wrinkles and a bit of a heavier hand, but I think it is a good trade-off for a print that lasts.
I have another shirt that has been washed 30 times and has Quick Print designs on the inside and outside. The prints inside the shirt look perfect while the outside prints fade and rub off in the dryer. If customers would simply remember to turn the garments inside out before washing, there would be no problem.
If you're doing white shirts, Solutions Clear is a dream, and I have so far had no problems with it fading after laundering.
Imprintables says that if we let the ink cure for at least an hour before pressing it, we should not have this problem. I'm going to start letting mine wait a little while.
However, warn your customers not to use sunscreen around the ink. I just had a jersey that was completely smeared because the ink came into contact with the sun screen. It made a complete mess and came off all over her arm. I just did 64 jerseys front and back for this group and this is a BIG concern. I have another message into IW to see, if there is anything that can me done and I think I will start looking at that Siser SmartPro you mentioned. I cannot afford to replace 64 jerseys, but maybe I can prevent it, by getting them back and putting that on top????
My tests were on media that had cured at least overnight. Some shirts just seem to fade worse than others (dark blue has done poor on my tests). It would be interesting to see whether Smart Pro would help the sunscreen issue. I am not particularly fond of working with Smart Pro on large areas since it's not the easiest to peel off and requires high/prolonged heat. ...might be worth a try for you though! I bought mine from Sandy at Apex Embroidery: 877-935-7766
SO HAVE YOU RAN A TEST ON YOUR OWN. WHAT I MEAN IS PRINT A LOGO. TAKE IT HOME AND WASH IT 20 TIMES OR MORE. SEE HOW IT REACTS TO THE WASH. PLUS I NOTICE THAT THE PRESS ON THE HEAT PRESS MAKES A PRINT FADE SO IS IT FADED AFTER THE WASH OR AFTER THE PRESS. DON'T TRUST SOME ONE ELSES WASH. YOU WASH IT YOURSELF SO YOU KNOW HOW IT REACTS