Without using glue synthetic in-cap and metal out-cap of a container cover and manufacturing method thereof

The present invention is coupled thereto without the use of adhesive is heated as naekaep the vessel lid, and a method of producing a combination of metal oekaep, group is heated after assembly to naekaep and metal oekaep formed of a more specifically hot-melt resin by heating the metal oekaep by only the sealing region of the naekaep a hot-melt resin in the melt it is possible to prevent the phenomenon naekaep and metal oekaep formed of the hot-melt resin in a manner that oekaep and bonding mutually departure, the material of naekaep conventional general because they form a hot-melt resin since the synthetic resin melts at a temperature lower than without the use of adhesive to reduce the heat loss and container combination of naekaep oekaep metal cap and a process for their preparation. The invention being formed by naekaep 10 and the metal oekaep 20 formed of a metallic material formed of a hot-melt resin, and insert combining naekaep 10 in the metallic oekaep 20, heat to the metal oekaep 20 and the reaction mixture without using an adhesive, characterized in that the outer peripheral surface of the naekaep 10 is laminated with the molten metal oekaep 20 provides a container lid and the metal combines naekaep oekaep. The present invention inserts a naekaep 10 in the step (S20) of preparing a metal oekaep 20 and the step (S10) of forming a naekaep 10 to the hot-melt resin, formed of a metal material, the metal oekaep 20 and a step (S30) of combining, in step (S40), and the heater 30 for the naekaep 10 to place the insert-bonded metal oekaep 20 to the conveyor belt 50 passes through the heater 30 that is by heating the outer periphery of the naekaep 10 made of molten metal oekaep 20 and the bonding step (S50) is characterized.