| 摘要 |
A cleaning device composed of a rigid or semi-rigid plate and a substantially flat cleaning pad removably fixed to the plate. The cleaning pad is composed of: a first layer made of light non-woven material, forming the outer face of the pad and having a first permeability to an aqueous liquid, a first thickness, a first capacity of absorption of the aqueous liquid, and abrasive properties; a second layer made of a blotting material, adjacent to the first layer and having a second permeability lower than the first permeability, a second thickness greater than the first thickness, and a second capacity of absorption; a third layer made of a dense hydrophilic material, adjacent to the second layer and having a third permeability, a third thickness, and a third capacity of absorption higher than the second capacity of absorption; and a fourth layer made of a liquid impermeable film.
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