Have you ever wondered whether Fray Check really works? Shannon from Shannon Sorenson Designs did, and so she created a little experiment. She put some ruffled cotton fabric through the wash, some treated with Fray Check and others pinked, ripped, or left raw. She shares the results of her experiment on her blog, Shannon Sews. Go to her post to see how Fray Check stood up to her test.
[photo from Shannon Sews]
I dont think the fray check as better as the washing machine , and sure about the result quality too.
If the fray check is better than washing machine then i have to watch video for that.
Yeah totally agree with the Mr Steve, fray check are better but it mostly depends on type of the usage.