Two weeks ago, we got new carpet and it’s a lovely light color. One week ago, we got a sweet puppy. Today that sweet puppy found a vial of blue food coloring that had fallen in the pantry and rolled out of our sight. He carried it to the carpet and, well, it looked like a smurf was murdered. We acted quickly and blotted up as much as we could. We also used stain sprays, then a carpet cleaning machine to clean it. We felt pretty good because we got it back to normal – you couldn’t see the blue at all! And then an hour later… a hint of blue appears. We spent the day blotting, spraying, cleaning and it is still drying blue even though it looks clean.
Why does that happen?
In: Chemistry
A possibility could be that the dye soaked into the carpet but you only removed what was towards the surface, so in time the dye spread evenly to give the blue color.
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