When doing applique onthe machine I use regular thread in the top needle & serger thread in the bobbin.

Katlady is serger thread more like bobbin thread in weight.

me too

When I was a child I always outlined the pictures I colored in my coloring books. It has pretty well carried over to my machine applique. Therefore, any thread that accents what I have made works for me. Sometimes it's a different color to look like an outline, other times it's one to blend.

Yes, you may use regular sewing thread. I did it for years. I would suggest that you use some sort of a stabilizar on the under side of the block, garment, etc. that you are putting the applique on. It will reduce the chances of the satin stitch "tunneling" or pulling together. It also works the same with blanket stitch, although it isn't as necessary. It depends on how wide you make the stitch in either case.
Happy a good time with the applique. It's lots of fun. :-D

I use only Isacord, a bit more expensive than the regular JoAnns' brand however, it is worth the price. It is a good thread does not break eaisly and is a heavery gage than Coats, but most iportant if you do a lot of embroidering you will notice that it does not cause lint that can build up in your embroidery unit.

Well said - this is what I like to do but didn't think about the fact that that is how I colored as a child :lol:

I usually use embroidery thread. But I have used regular threa also.

I also use regular sewing thread. I use the same color for the bobbin as for the top, because I don't have all day to fuss with the tension. The top usually looks great, and the bottom, well, not quite so great. Just in case some of the bobbin thread decides to show through, at least it's the same color.
Mine is just a basic machine, not a fancy embroidery machine. If I spent the money on a fancy machine, I would invest more time in perfect applique.

I have a lot of poly cotton thread and once I use it up I am going to go to cotton.