Table 1 Results of analytical investigations for every layer of the light blue area
Layer name | Color | Material | Function |
|---|---|---|---|
Decoration Line | Golden | Gold | Delineate leaf veins |
Layer 1: feather layer | Blue | Kingfisher feathers | The main decoration surfaces |
Layer 2: back side glue layer | Black | Protein glue and carbon black | The main function of this layer was to bond feather fibers together to a feather sheet so that cutting and pasting of small feathers would be much easier. In this case, this layer was not transparent, but black. Thus, it was not only for bonding but also served as another background color layer in addition to Layer 4 |
Layer 3: bonding layer | Transparent and yellow | Protein glue | Bonding of the feather sheet and support body together |
Layer 4: background color layer | Red | Protein glue and ochre | Red layer on the top of the support body. The color can be seen through gaps between feather fibers. It was used along with layer 2 to affect the sensorial color and texture of the surface |
Layer 5: support body | Pale yellow | Bamboo paper | Main part of the support body |
Skeleton | Brown | Copper | Sandwiched in the paper layers to make the support body stronger |
Layer 6: bonding layer | Transparent and yellow | Protein glue | Bonding this diancui component on the screen |