Silk Slavery

Silk slavery is the practice by salticids of forcing other salticids to produce large quantities of silk against their will, either for use in construction or as a method of torture.

History
Silk slavery was utilized in a primitive, non-technological form by pre-Mingle Terran salticids against their prisoners, exiles, and enemies, but was only implemented on a massive scale by the Portians, first against the spiders of Vast Mopsus and then against the other Terran civilizations, specifically the Helpis and the Coastal Mopsus.

Description
Silk slavery employs a device called a loom, into which a salticid is strapped down and rendered immobile. A line of their silk is carefully threaded onto a wheel, which is turned by another salticid to continually force silk production until a roll of silk is accumulated.