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    • 3. 发明申请
    • Solid laundry detergent composition comprising an alkyl benzene sulphonate-based anionic detersive surfactant system and a chelant system
    • 包含基于烷基苯磺酸盐的阴离子去污表面活性剂体系和螯合剂体系的固体衣物洗涤剂组合物
    • US20070042928A1
    • 2007-02-22
    • US11505006
    • 2006-08-16
    • Doris ApplebyAlan Brooker
    • Doris ApplebyAlan Brooker
    • C11D17/00
    • C11D3/39C11D1/22C11D3/33C11D17/0039C11D17/06
    • The present invention relates to a solid laundry detergent composition in particulate form, the composition comprises: (i) an anionic detersive surfactant system that comprises at least 50%, by weight of the anionic detersive surfactant system, of alkyl benzene sulphonate; (ii) a source of peroxygen that is preferably at least partially coated by a coating ingredient; (iii) a chelant; (iv) from 0% to less than 5%, by weight of the composition, of zeolite builder; (v) from 0% to less than 5%, by weight of the composition, of phosphate builder; and (vi) optionally from 0% to less than 5%, by weight of the composition, of silicate salt; wherein the chelant has a metal ion chelation efficacy such that at pH 10.0, 0:1M NaCl and 25° C.: (i) the ratio of the chelant's stability constant (log K) for Cu2+ cation to the chelant's stability constant (log K) for Ca2+ cation is greater than 1:1; (ii) the ratio of the chelant's stability constant (log K) for Fe3+ cation to the chelant's stability constant (log K) for Ca2+ cation is greater than 1:1; (iii) the ratio of the chelant's stability constant (log K) for Ni2+ cation to the chelant's stability constant (log K) for Ca2+ cation is greater than 1:1.
    • 本发明涉及一种颗粒形式的固体衣物洗涤剂组合物,该组合物包括:(i)阴离子去污表面活性剂体系,其包含至少50重量%的阴离子去污表面活性剂体系的烷基苯磺酸盐; (ii)优选至少部分地用涂料成分涂覆的过氧源; (iii)螯合剂; (iv)按组合物重量计0%至小于5%的沸石助洗剂; (v)组合物重量的0%至小于5%的磷酸盐助洗剂; 和(vi)任选的组合物重量的0%至小于5%的硅酸盐; 其中所述螯合剂具有金属离子螯合功能,使得在pH 10.0,0:1M NaCl和25℃下:(i)螯合剂对于Cu 2+的稳定常数(log K) 阳离子与螯合剂对于Ca 2+阳离子的稳定常数(log K)大于1:1; (ii)Fe 3+阳离子的螯合剂稳定常数(log K)与Ca 2+阳离子的螯合剂稳定常数(log K)的比例大于 1:1; (iii)Ni 2+阳离子的螯合剂稳定常数(log K)与Ca 2+阳离子的螯合剂稳定常数(log K)的比例大于 1:1。