NIPPLE FOR NURSING BOTTLE AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a nipple for a nursing bottle in which a suck opening part does not close again even when secondary vulcanization is performed after forming the slit shape suck opening part or even when the nipple for the nursing bottle is kept for a long term. SOLUTION: The nipple for the nursing bottle is made of silicon rubber which is provided with a body part having a flange shape seat part in a peripheral edge part and a nipple part formed in the top-neighborhood of the body part. The slip shape suck opening part is formed in the tip of the nipple part and granular particles are stuck onto at least the cross section of the suck opening part in the thickness direction. The nipple for the nursing bottle is produced by sticking the granular particles on the cross section of the formed slit shape suck opening part.