Remember the painting I bought at auction of the Sagi 鷺 which is a heron or egret in Japan. This is the work I did today. First I cut away all the borders. I could have removed by applying water, but this was sufficient.
Next I removed all the old backing paper called Urauchi from the painting.
Lastly, I applied a new first layer of paper called Hada Urauchi to the painting.