| abstract |
A multi-station apparatus and method of manufacture allows the manufacture of an article having a fluid filled cavity fabricated from simultaneously fed twin thermoplastic webs. A web transport means simultaneously feeds twin thermoplastic webs into an apparatus, where a oven raises the temperature of the material of the webs for thermoforming and molding. The cavity then is partially fusing to provide an injection and outlet port and a fluid is injected into the cavity, which is then sealed to provide a finished article. The fluid can be formed from a super absorbent material as a thick, viscous gel-like colloidal substance. |