Loop/Drive Spin and No Spin

I always heard people saying looping spin and no spin. Some said Timo boll's loop is hard to block as sometimes with spin and sometimes no spin. My question is how to do no spin loop or drive? I would have understand if my opponent give me a no spin push for me to loop a no spin loop. But if my opponent give me a strong back spin push or chop, can I really loop the ball with no spin? Will the ball ever reached my opponent table then?

You will need to practice against defensive players (chopper) to work on varying the loop from drive to regular loop to no spin loop.  It takes major footwork and dedication.