| 摘要 |
IP No. 596580 The disclosure relates to a method for cleaning a soiled substrate, said method comprising a batchwise process for the treatment of the moistened substrate with a formulation comprising a solid particulate cleaning material wherein said formulation is free of organic solvents and said solid particulate cleaning material comprises a multiplicity of polymeric particles, said treatment comprising agitation of said substrate and said formulation in at least one sealed container, wherein said container provides an ullage value of from 30-60% by volume, and wherein said polymeric particles are re-used in further cleaning procedures according to the method. Preferably the sealed container comprises a metal container or a container formed from a rigid or flexible plastic material. Preferably, the substrate is wetted. Preferably the solid particulate cleaning material comprises a multiplicity of polymeric particles which comprise at least one additional cleaning agent such as a surfactant. Preferably, the substrate comprises a textile fibre. Typically, the polymeric particles comprise particles of nylon or polyester. |
