Traditional Culture Encyclopedia - Traditional customs - What is the principle of cherry blossom umbrella?

What is the principle of cherry blossom umbrella?

I don't know if you're talking about the water front kind of cherry blossom umbrellas, probably means that the umbrella surface is coated with a layer of waterproof coating, the cherry blossom part is not waterproof coating, so when it rains the rain does not stick to the coated part but will stick to the part that is not coated, so the formation of cherry blossom pattern ~ I don't know if lz understand it

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