What needs to be clarified
Map filling leakage, distinguish fabric and sewn joints as migration routes, and determine whether to test the finished jacket or separate shell materials.
Materials to prepare
- Jacket with labels and protruding filling preserved
- Photographs before cleaning and separately collected loose fragments
- Wear, care and declared shell and filling construction information
What to compare
Map exits across panels, seams and needle holes; inspect weave, thread damage and friction zones. Compare unaffected areas of the same shell. Any agreed test records the initial condition and new leakage. Assess finished-product and fabric specimens separately; relate fragment counts to the method rather than an arbitrary acceptance limit.
Possible outcome of the analysis
A photographic migration map and selected-test record may describe supported shell characteristics, further checks and limits on conclusions about the whole submitted jacket.
Limits of the conclusions
A loose feather cannot establish the quality of an entire filling batch. Fabric testing does not automatically describe seams; pulling filling before inspection may alter hole size.