Humidifying lipstick case

A - Human Necessities – 45 – D

Patent

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Details

A45D 40/00 (2006.01) B65D 81/18 (2006.01)

Patent

CA 2243740

This invention provides a self humidifying case which comprises a base for receiving a stick-type product, a hollow cap formed with an outer wall fitting over the base, and a volatile solvent-absorbing material secured within the case and soaked with a volatile solvent. This volatile solvent used is the same as that which is employed within the composition of the volatile-solvent containing product. The volatile solvent contained in the product and the solvent-absorbing material evaporates, thereby saturating the inner chamber of the case with the volatile solvent in vapor form. This saturation aids in preventing the volatile from escaping from the stick-type product by creating an equilibrium within the cases' interior chamber.

La présente invention porte sur un boîtier avec auto-humidification, comprenant une base pour recevoir un produit de type bâton, un couvercle creux avec une paroi externe s'ajustant sur la base, et une matière absorbant les solvants volatils fixée dans le boîtier et imbibée d'un solvant volatil. Ce solvant volatil utilisé est le même que celui qui est employé dans la composition du produit renfermant le solvant volatil. Le solvant volatil contenu dans le produit et la matière absorbant le solvant s'évaporent, ce qui provoque la saturation du compartiment interne du boîtier avec le solvant volatil sous forme de vapeur. Cette saturation aide à empêcher le solvant volatil de s'échapper du produit de type bâton, en formant un équilibre dans le compartiment interne du boîtier.

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