| 摘要 |
A method of preparing a cleaning tablet which comprises a plurality of discrete regions with different compositions, wherein at least a first region of the tablet is a solid region of compacted particulate material and a second region is a smooth region, wherein the method comprises the steps of a)providing a solid region of compacted particulate material thereby forming the first region; b) fitting tightly an outer sleeve around the periphery of the first region wherein said sleeve extends above the surface area of the first region thereby forming a mould; c)introducing a fluid composition into the mould to form the second region; d) solidifying said second region and optionally removing said sleeve.
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