Refillable aerosol system

Abstract

To provide a simple-structured refillable aerosol system that allows for easy release of a propellant gas even from the space outside of an inner bag within a double-structure parent container, that allows for fast transfer-filling of a liquid content from the parent container to a child container. The refillable aerosol system ( 100 ) allows the child container ( 120 ) to be filled with the liquid content (F) transferred from the parent container ( 110 ). The parent container ( 110 ) includes a first parent stem ( 112 ) for a liquid content storage part ( 115 ) and a second parent stem ( 113 ) for a propellant storage part ( 116 ). The liquid content storage part ( 115 ) is pressed by a parent-container propellant (MG). The parent container ( 110 ) has a higher internal pressure than the child container ( 120 ). The child container ( 120 ) is filled with the liquid content (F) ejected through the first parent stem ( 112 ) via a child stem ( 122 ).

1 . A refillable aerosol system comprising a parent container and a child container that are aerosol containers with an attached valve unit having a stem, the refillable aerosol system allowing the child container to be filled with a liquid content from inside of the parent container,
 the parent container including a plurality of divided storage spaces, parent stems that are the stems corresponding to the storage spaces, and the valve unit with a seal member provided for each of the parent stems to open and close the parent stems,   at least one of the plurality of storage spaces being a liquid content storage part that stores the liquid content,   at least one of the other of the plurality of storage spaces being a propellant storage part that stores a propellant,   the parent stems including a first parent stem corresponding to the liquid content storage part and a second parent stem corresponding to the propellant storage part,   the liquid content storage part being configured to be pressed by a pressure of the propellant in the propellant storage part,   the parent container having an internal pressure that is at least higher than an internal pressure of the child container without the liquid content therein, wherein   the child container is filled with the liquid content ejected from the parent container through the first parent stem via a child stem that is the stem of the child container.   
     
     
         2 . The refillable aerosol system according to  claim 1 , wherein the parent container further comprises a press-stop cover that surrounds the second parent stem. 
     
     
         3 . The refillable aerosol system according to  claim 1 , wherein the second parent stem has a shorter length than the first parent stem. 
     
     
         4 . The refillable aerosol system according to  claim 1 , wherein the second parent stem is removably attached. 
     
     
         5 . The refillable aerosol system according to  claim 1 , wherein the first parent stem and the child stem are connected to be in communication with each other via an assist adapter. 
     
     
         6 . The refillable aerosol system according to  claim 5 , wherein the child container further comprises a child actuator that fits to the child stem,
 the assist adapter being provided to the child actuator.   
     
     
         7 . The refillable aerosol system according to  claim 1 , wherein the child container has an internal pressure of 0.1 MPa or more in a state not filled with the liquid content. 
     
     
         8 . The refillable aerosol system according to  claim 1 , wherein the child container is a double-structure container having a child-container inner bag that is in communication with the child stem, and wherein
 the child container is configured to allow the child-container inner bag to be filled with the liquid content, and includes   a space filled with the propellant outside of the child-container inner bag.   
     
     
         9 . The refillable aerosol system according to  claim 1 , wherein the propellant inside of the child container is composed of a compressed gas. 
     
     
         10 . The refillable aerosol system according to  claim 1 , wherein the propellant inside of the propellant storage part includes at least a liquefied gas.