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Table 1 Results of analytical investigations for every layer of the light blue area

From: Analytical investigation of the feather decoration technique of a seventeenth to eighteenth century Chinese imperial hanging screen

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