Method for producing a vessel closure

摘要

The invention relates to a method for producing a vessel closure for vessels comprising an opening that is to be closed by the vessel closure, an inner diameter of more than two cm and surrounds a polymer-based sealing element that is arranged in the vessel closure in such a manner that it sealingly rests on the opening of the vessel in the closed state. A polymer material becomes sufficiently free-flowing by warming and is applied to the vessel closure in the region of the sealing element that is to be produced, and optionally, is mechanically formed into the desired shape which it maintains after cooling. The invention also relates to a metal or plastic vessel closures for vessels for receiving drinks or food, and comprises a sealing insert, the material thereof being selected so that the migration of material components into the drink or food, that are a health risk, is prevented. The invention also relates to corresponding materials for said type of sealing inserts and to the use of specific polymers for producing the above-mentioned sealing inserts.

主权项

1. A method for producing a press-on, twist-off vessel closure, the method comprising:
providing a vessel closure; heating a polymer-based sealing element until the sealing element is made sufficiently flowable, wherein the sealing element has a Shore A hardness in a range from 40 to 90 and a compression set in a range from 30% to 70%; and applying the sealing element to the vessel closure in such a manner that the sealing element sealingly abuts the opening of the vessel in a closed state, wherein the vessel closure is configured for use as a mess-on, twist-off vessel closure for a vessel having an opening that is to be closed by the vessel closure and has an inner diameter of more than 2 cm.