Scratch It Some More

Use either 220 or 320 grit sandpaper to lightly sand an undamaged area.

Does a colored dust transfer to the sandpaper?

Do not declaw your cat! This procedure is amputation of the bone, is unnecessary and cruel. It’s banned in many countries and opposed by the Humane Society and the American Society for the Prevention of Cruelty to Animals. Discourage unwanted scratching by using a spray bottle of water (set on shoot-to-soak) and pheromone sprays. Give your cat a scratching post where it can engage in its natural behavior. You can also trim its claws with pet nail clippers