Patent ID: 9533819
Date: 2017-01-03
CPC Classifications: A45D,B65D

Claim:
1. A double-aerosol device comprising: a plurality of inner containers that separately store a plurality of types of hair treatment compositions used by mixing as a hair dye, decoloring agent, or dye remover; and an outer container in which the plurality of inner containers are stored, wherein the hair treatment compositions are discharged to the outside by contracting the plurality of inner containers by a pressure of propellant, wherein the outer container is configured such that at least a part of the inside of the outer container is visible so as to confirm remaining amounts of the hair treatment compositions, wherein each of the plurality of inner containers comprises a pouch that stores the hair treatment compositions, and a flow passage member that is fixed to a communication port of the pouch and has a rod-shaped part inserted into the pouch, and wherein the rod-shaped part of at least one of the plurality of inner containers comprises a protrusion part formed on a lower end portion thereof, the protrusion part having a thickness dimension, which is a length of the width in a direction that is orthogonal to a surface of the pouch, formed longer than a thickness dimension of a portion other than the lower end portion.