Make it with black and white negative film. Coloring printing method. It is not a commercially available color print system.
Although this technique is also in the classical technique, it is called "popchrome"
Usually, you use something with shapes such as leaves and solid objects ... ...
Mixture of pigment and photosensitizer on printing paper, plastic paper, Roughly spray. After drying, overlay the magnifying negative and use the UV exposure machine, Burn. Then wipe with tap water, sponge, etc. An image appears. It is dry and one step is completed. Repeat this process, replacing the pigment with C ・ M ・ Y ・ B. For this print, I used C, M, Y photosensitizers. 
In this time, we will supply liquid such as water directly, photographic paper,
I thought about a method of fixing it.
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