| 摘要 |
The present invention discloses dry effervescent granules comprising an acid, carbonate source and optionally a binder, wherein said acid, carbonate source and optionally binder are in close physical proximity, wherein the granule is obtainable by a process comprising the steps of: first mixing the acid, the carbonate source and optionally the binder to form a mixture, then submitting the mixture to a agglomeration step, preferably a pressure agglomeration step to form an agglomerate mixture, and finally granulation of the agglomerate mixture in a granulation step. Granular compositions may be obtainable by incorporating said pre-formed dry effervescent granules into said granular compositions, especially detergent compositions. Improved effervescence is obtained when diluting these granular detergent compositions with water to obtain a washing/soaking liquor, resulting thereby in improved dissolution/dispensing characteristics and improved stain removal performance on soiled fabrics. |
