CAP FOR TUBE CONTAINER

PURPOSE: To improve a sealability and surely keep an air passage for asipiration in case of accidental sucking of a cap by infant in the throat by a method wherein the inside of a main body is provided with a screw type inner cap for use in closing a tube container and an aeration hole is formed between the inner cap and the main body. CONSTITUTION: As an inner cap 8 of a cap C is threadably fitted to a threaded part 9 formed at an outer circumference surface of a neck part of a tube container and gradually fastened, a tube container is completely sealed to keep airtightness of the content. In addition, an aeration hole 7 is formed between the inner cap 8 and the main body and in its normal use, the aeration hole 7 is positioned outside the inner cap 8 where the tube container opening is not contacted, so it is not feared that the content may close the aeration hole 7. In addition, when the cap C is removed, even if an infant accidentally sucks this cap and chokes at the throat, aspiration can be attained by the aeration hole 7 formed between the inner cap 8 and the main body 1.