The horn for the ultrasonic welding machine which is used for welding the Inlaying being packed type tap and the said Inlaying being packed type tap of the plastic make container

摘要

PURPOSE:To make it easier to confirm the content quantity while suppressing the deterioration of the content by ultraviolet rays to the minimum by a method wherein at least the body part of a plastic container which is used as a pail, etc., is formed to be transparent, and a printing is applied on the specified surface area excepting the bottom surface. CONSTITUTION:A plastic container for holding oil, etc., consists of a body part 1 and a lid part 2, and usually, the lid part 2 is screwed or fitted in the body part 1. For such a container, only the body part 1 is formed to be transparent, and the lid part 2 is formed to be opaque by mixing a white pigment, etc., ultraviolet rays are prevented from permeating the container by applying a printing 1a on 60-90% part (area) of the body part 1 excepting the bottom of the body part 1. A fit-in type pouring port 11 made of a plastic is attached to an opening 2a provided on the lid part 2, by welding by ultrasonic waves. That is, the pouring port 11, a flexible neck part 13 which continues from the pouring port 11, and a welding part 15 for the pouring port including a flange part 14 are welded to the opening 2a.