Breaking the isolation seal with click(Japanese expression "Patching") and using.
It is isolation seal type sachet "Patching Pack"
  
This is a mechanism that is to break the isolation seal between chamber A and chamber B and mix them before using.
chamber A is filled with solid, powder or liquid of pharmaceutical or something. And chamber B is filled with liquid. Before using, break the isolation seal with pressure on the liquid in chamber B. After breaking, mix well the materials in chamber A and B.
In short, it is the most suitable packaging system to mix 2 materials just before using. 
 
  
2 types of isolation seal form accommodated to packaging size and volume
Straight and Wave line type  
When folding the line part and pushing it, spout out the liquid in chamber B more lively than Wave line type. So, if the volume is much, we recommend this type because you can mix 2 materials in a short time.
 
When pushing chamber B, isolation seal will be ripped from peak of wave line shape like and both of materials will be mixed slowly.
   

1 Apply pressure on liquid chamber like this picture and break the isolation seal of center part. 2 Massage them and mix well both of materials. 3 After mixed, open it from opening part without spilling.
     
  The purpose of "Patching Pack" is ...

 ●The powder and liquid that is the materials of face pack
 ●Seasoning or sesame and dressing
 ●Compressed hand towel and water
 ●2-material mixing type adhesive
 ●Easy-to-separate liquid etc.

 

Komack Co., Ltd.