a recently completed patch - the threads just need clipped
Invisible mending is a sophisticated weaving method consisting in rebuilding the fabric of a garment but also of upholstery after an accident: snag, burn, accidental blade or scissor cut, etc.
Both the warp and weft of the fabric could have been damaged. Invisible mending is the reconstruction of both the warp and weft using a long needle.
The post includes photos of each step in the process.