Will the red wet rag change color if it drips on the white wall ash for a long time?

The red wet rag drips on the white wall and the gray quilt, even if it takes a long time, it will not cause the color change. This is because the pigment in the wet rag needs high concentration and contact time to produce obvious dyeing effect on other objects. The white wall ash quilt has good anti-pollution performance and can resist some common stains. If it is cleaned in time, the red stain left by the dehumidifying rag can be effectively removed by using appropriate cleaning agents and methods to avoid discoloration.