Due to the traffic damage in a synthetic carpet fibers, making them easy dirt to cling. With HG carpet and bekledingreiniger (HG product 95), the dirt is removed and the uneven vezeloppervlak filled with a soil-repellent coating.
Also with a woolen carpet happening on the duration something like that. The natural grease will disappear slowly but surely. HG carpet and bekledingreiniger to fill back in with dirt repellent material.
Treat the spots in advance with HG vlekkenspray. Then HG carpet and bekledingreiniger with a special machine insproeien and extraction directly or with a brush rub. Wipe dry with a terry cloth towel. Eén liter is good for 30 square metres of floor space.