METHOD OF IMPROVING RE-CLOSURE OF OXIDATIVE HAIR COLORANT SACHET WITH FOLDABLE RE-CLOSURE DEVICE

摘要

The present invention relates to a method of maintaining chemical reactivity of an oxidative hair colorant in an opened flexible sachet including a reclosure element. The quality of the re-closure will strongly influence how the hair colorant will perform when using it as intended. The method according to the present invention ensures maintaining chemical reactivity by improving the quality of the re-closure by intuitively inducing safe and tight re-closure by users of such hair colorant. This is achieved by providing the sachet to the user in a configuration already in its re-closure position, while the sachet has not been opened yet.