Nicholas John Dixon,Matthew Robert Giles,Kimberley Elizabeth Griffiths,Tony Gough,Ian Malcolm McRobbie
申请号：
GB201715817
公开号：
GB2559645A
申请日:
2017.09.29
申请国别(地区):
GB
年份:
2018
代理人:
摘要：
A method of treating a material, the method comprising the steps of: (1) contacting the material with a composition comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof； (2) contacting the material with a composition comprising a chelating agent and/or a salt of an amine and a carboxylic acid. The material is preferably a keratinous material, particularly wool； human or animal hair. Step (1) may be performed before, after or simultaneously with step (2), particularly wherein steps (1) and (2) are simultaneous the components are provided in a single composition. Hair care compositions comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof and a chelating agent and/or a salt of an amine and a carboxylic acid and packaged products comprising the same are also disclosed. The aldehyde is preferably selected from alpha-hydroxy aldehydes, such as 2-hydroxydecanal, 2-hydroxyoctanal and glyceraldehyde. The chelating agent is preferably a polycarboxylic acid, particularly N,N-bis(carboxymethyl)-L-glutamic acid (GLDA) or diethylenetriaminepentaacetic acid (DTPA).
