| 摘要 |
A detergent block of compressed granular material is provided, said block having a weight of 0.2-10 kg, being substantially free of phosphate builder material, and comprising a granulated builder material, an alkaline agent and a compressing aid. A process is also provided for preparing a block of compressed granular material being substantially free of a phosphate builder and having a weight of 0.2 to 10 kg, said process involving the steps of (i) granulating a non-phosphate builder material, with 0.1-10 % by weight based on the weight of the builder of a co-ingredient selected from polycarboxylic polymer solutions, alkali metal silicate solutions, and mixtures thereof; and (ii) compressing a particulate mixture of said granulated builder material and other components of the block, including a compressing aid, in a mould under a pressure of 3-30 kN/cm2.
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