Abstract: The present invention relates to the time-temperature indicating module which allows the user to trigger the bursting of the starting member with a simple motion and generate a crack so that the spread material interposed inside spreads via the crack. The present invention also relates to the manufacturing method of the time-temperature indicating module that strengthens a sealed section of the time-temperature indicating module using laminating by heat sealing to prevent the spread material from leaking or flowing out.

Abstract: The present invention relates to the time-temperature indicating module which allows the user to trigger the bursting of the starting member with a simple motion and generate a crack so that the spread material interposed inside spreads via the crack. The present invention also relates to the manufacturing method of the time-temperature indicating module that strengthens a sealed section of the time-temperature indicating module using laminating by heat sealing to prevent the spread material from leaking or flowing out.

Abstract: A stiffener for insert-molding including a stiffening bar for insert-molding and insert setting members provided on an outer periphery of the stiffening bar at a predetermined interval. Durability of a crash pad can be significantly improved by insert-molding the stiffener during the manufacturing process of the crash pad. Manufacturing the crash pad includes setting a skin on a lower mold, setting the stiffener that matches a skin corner at the skin corner while the skin is set on the lower mold, and injecting a foam liquid between the skin set on the lower mold and a core set on an upper mold while the stiffener is set at the skin corner.