Why did the invention of the cotton gin eventually cause further tensions between the north and south?

Bc even thou the cotton gin caused for less salves to pick the seeds out of the cotton they needed more slaves in the feilds to keep up with the cotton gin bc the cotton gin speeded up work, caused for more slaves in feilds and increasing the slaves population
Hope this helps have a nice day

The nineteenth amendment changed voting rights as it allowed for women to vote nation wide