This is where the legs off old discarded pairs of jeans come in handy, they don't have to be the same colour as it is going underneath. Sometimes I use the right side of the fabric and sometimes the reverse. The first job is to undo the seam down the side, I find it is just so much quicker to do this than try and force a large area of leg under the machine.
It will be a quick job to just run that back in again it is only a straight seem after all.
Next I cut the piece of scrap denim a bit bigger than the area that is damaged and pin that in place.
I used the wrong side of this fabric as it was a bit darker.
I then make sure that the hole is together and lying flat then I stitch forwards then reverse using a straight stitch, the effect you get is random criss cross, I concentrate more on the areas where the fabric comes together but up to the edge of the patch underneath. The threads you can see in this image are just places where I moved it back by hand to line it up again, they are trimmed off afterwards.
Then when all the patches are complete just turn it through to the wrong side and sew the seams.
This is a finished patch near the pocket, I used a light blue cotton to go with the denim but you see some jeans where a contrast has been used to make the patched area stand out. I think I prefer it less visible.
Does anyone else have different ways of doing this? Do you like to see the patches or make them blend in? Let me know in the comments section, I always enjoy reading the comments.