The invention discloses a manufacturing method of a rescue mask combined with traditional processes, especially improving the processing technology of the air bag. A semi-molten tube parison is extruded by an extruder, then placed in a mold of desired shape while hot, and compressed air is promptly introduced into the tube parison to make it cling to the mold cavity wall. After cooling and demolding, a hollow air bag is obtained. This process forms the air bag in one step, saves production procedures, stabilizes the air pressure of the air bag, and provides an attractive appearance without an inflation port.
Country Code: CN
Application Number: CN201310562695.8
