A hair coloring composition comprising: (a) from about 0.0003 moles (per 100 g of composition) to less than about 0.09 moles (per 100 g of composition) of an inorganic peroxygen oxidizing agent; and (b) an oxidative hair coloring agent; wherein the pH of each of (a) and (b) is in the range of from about 1 to about 6 and wherein the combined mixture of (a) and (b) has a pH in the range of from about 1 to about 6. The products can provide excellent hair coloring and in-use efficacy benefits including excellent initial color and good wash fastness in combination with reduced hair damage at low pH.
A hair colouring and conditioning composition comprising:
(a) a hair colouring agent; and
(b) a hair conditioning agent;
wherein the composition provides an Average Combing Index Value of greater than 1.2 as measured by the Combing Technical Test Method.
The products can provide excellent hair colouring together with excellent conditioning, reduced hair damage, brittleness and dryness, and is convenient and easy to use.
Switchable Bifunctional Bistate Reusable ZnO–Cu for Selective Oxidation and Reduction Reaction
作者:Kasturi Sarmah、Subhamoy Mukhopadhyay、Tarun K. Maji、Sanjay Pratihar
DOI:10.1021/acscatal.8b03785
日期:2019.1.4
copper loaded zinc oxide (ZnO–Cu) for its stimuli (O2/light) responsiveswitchable performance between its reduced (S-1) and oxidized (S-2) state for two antagonistic reactions, namely oxidation of alkyl arenes/heteroarenes to aldehydes/ketones and reduction of nitro arenes/heteroarenes to corresponding amines. The two states of the catalyst showed its switchable performance as highly active and poorly
在这里,我们公开了利用铜负载的氧化锌(ZnO-Cu)在两个还原反应(即氧化)的还原(S-1)和氧化(S-2)状态之间的刺激(O 2 /光)响应可转换性能。将烷基芳烃/杂芳烃还原为醛/酮,并将硝基芳烃/杂芳烃还原为相应的胺。催化剂的两种状态均显示出其可切换的性能,即用于氧化和还原的高活性和低活性催化剂,并且通过改变刺激(光和O 2 / N 2),两个反应都可以“关闭”和“打开”。)。发现状态之间的转换效率及其相对反应性在各种反应条件下均保持一致,并且无论氧化还原顺序(反之亦然)和反应中使用的底物如何,都保持不变。光催化剂(S-1和S-2)表现出良好的催化活性,多种可重复使用性,广泛的底物范围以及对两种反应均具有合理的官能团耐受性,并在大规模应用中探索了其质量性能。该系统被用于辅助串联催化装置中,用于通过催化状态之间的刺激响应切换而利用氧化和还原反应两者来合成苄胺。
Transition metal complexes as dye forming catalysts in hair coloring compositions
申请人:Unilever Home & Personal Care USA, Division of Conopco, Inc.
公开号:US20030066140A1
公开(公告)日:2003-04-10
A hair coloring composition comprising a first composition which comprises:
(a) a dye forming transition metal salt or complex; which is first applied to the hair;
and a second composition which comprises the following two compositions which are mixed just prior to application to the hair:
(a) a composition comprising a water-soluble peroxygen oxidizing agent; and
(b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an aminophenol, a polyhydric phenol a catechol and mixtures thereof.
Hair conditioning compositions and their use in hair colouring compositions
申请人:The Procter & Gamble Company
公开号:US20030219399A1
公开(公告)日:2003-11-27
The present invention relates to a hair care composition comprising a aminofunctional polysiloxane having a specified average effective particle size which provides improved durable conditioning particularly when utilised in conjunction with a hair colouring composition.