What specific high-quality fabric became economically viable due to the Spinning Mule's output?
Answer
High-quality, soft muslin fabrics.
The Mule's ability to produce yarn that was both incredibly fine and exceedingly strong allowed spinners to manufacture high-quality, soft muslin fabrics which had previously been impossible to create economically.

#Videos
Monticello Spinning Jenny Operation - YouTube
Related Questions
What was the distinct limitation of the yarn produced by the Spinning Jenny?What fundamental concept did Richard Arkwright's Water Frame introduce to spinning technology?The Spinning Mule was considered a hybrid because it married mechanisms from which two prior inventions?Why was yarn produced by the Water Frame ideal for use as the warp in weaving?What organizational structure was inadvertently created by the Water Frame's requirement for a dedicated building near a river?What specific high-quality fabric became economically viable due to the Spinning Mule's output?Which power source adopted by the mid-19th century released spinning machinery from geographical constraints?Which part of the woven cloth was the softer, weaker yarn from the Spinning Jenny best suited for?Who invented the Spinning Mule in 1779?What process did later engineers automate in the Spinning Mule to create the Self-Acting Mule?What immediate production bottleneck did the technological separation between the Jenny and the Water Frame create?