Cartridge for Viscous Fluid Materials
OwnerTohru Nakayama, Hideyuki Moriinventors
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Abstract
A cartridge for storing and dispensing viscous fluid materials providing excellent productivity and gas barrier properties and free from external appearance defects at the site of film wrapping. The inventive cartridge for viscous fluid materials has a plunger 3 inserted into the bottom portion of a cartridge body 2 fabricated using insert injection molding by integrally molding a cylindrical barrel portion 5 of a multilayer structure produced by laminating a gas barrier layer 8 including a metal thin layer 8a on the exterior periphery or interior periphery of a plastic layer 7, and a lid 6 covering the top of said cylindrical barrel portion.
Claims5
A cartridge for viscous fluid materials, wherein a plunger used for dispensing contents filling a cartridge body is inserted in the bottom side of the cartridge body fabricated using insert injection molding by integrally molding a cylindrical barrel portion of a multilayer structure in which a gas barrier layer comprising a metal thin layer is laminated on the exterior periphery or interior periphery of a plastic layer used to maintain the shape and strength of the cylindrical barrel portion itself, and a lid covering the top of said cylindrical barrel portion.
Dependencies are inferred from the claim text.