Packaging tube, for a cosmetic product etc., is injection molded to give a supple tube body wall, with a progressive wall thickness decrease from one end to the other

摘要

Packaging tube, is injection molded to give a supple tube body wall, with a progressive wall thickness decrease from one end to the other. The injection molded blank packaging tube (10), for a cosmetic product and the like, has a supple wall (14) forming the tubular body (12). One end (16) has a cap (20) where the contents are delivered, and the other end (22) is pressed together to seal the tube and its contents. The thickness of the body wall decreases progressively from one end of the tube to the other from 1.5 mm to 0.3 mm. The tube is formed by injection molding, using a softened polymer or a monomer solution.