Novel peracid-containing particle

A first aspect of the invention relates to a particle comprising : (a) at least one bleaching agent comprising an organic peroxyacid; (b) at least one component selected from : (i) saccharides and polysaccharides, and derivatives thereof; (ii) inorganic fillers selected from the group consisting of talcs, micas, zeolites, silicates, metal oxides and clays; and (iii) linear, branched and cross-linked polymers and copolymers; (c) at least one pH reducing agent; and (d) at least one chelating agent. Further aspects of the invention relate to a process for preparing said particle, a composition or a dough comprising said particle, and use of said particle in a cleaning composition, a dental care composition, a hair dyeing composition or decolouriser, an antimicrobial composition or a bleach composition. 本发明的第方面涉及包括以下的颗粒：(a)至少种漂白剂，其包含有机过氧酸；(b)选自以下的至少种组分：(i)糖类和多糖、及其衍生物；(ii)无机填充剂，其选自由以下组成的组：滑石、云母、沸石、硅酸盐、金属氧化物以及粘土；以及(iii)直链的、支链的和交联的聚合物和共聚物；(c)至少种pH降低剂；以及(d)至少种螯合剂。本发明的另外的方面涉及用于制备所述颗粒的工艺、包含所述颗粒的组合物或料团、以及所述颗粒在清洁组合物、牙科护理