Development of a Trigger-action Spray Head that Works in an Upside-down Position

摘要

Trigger-action spray bottles are used as a container for numerous types of liquid products. Most of the conventional trigger-action spray heads, however, have the problem of being unable to spray continuously when used upside down. The problem was solved by our development of a trigger with a valve that properly changes the direction of the liquid flow in both normal and upside-down positions. With the effective use of the existing trigger parts, this convenient, economical trigger was de- veloped.