STRETCHED AND FOAMED PLASTIC FORMED BODY HAVING APPEARANCE OF A METAL COLOR

摘要

A stretched and foamed plastic formed body forming, in at least a portion thereof, a foamed region which incorporates foamed cells therein, wherein the foamed cells have a flat shape with a maximum thickness of not more than 30 μm and an average aspect ratio of not less than 4 as viewed in cross section of the formed body perpendicular to a direction in which the formed body is stretched to a maximum degree, and a non-foamed plastic skin layer having no foamed cell distributed therein is formed on the outer surface of the foamed region. The formed body is, further, blended with a non-lustrous pigment as the coloring agent, which is different from a lustrous pigment such as flaky pigment, and exhibits a metal color over the foamed region thereof. The foamed formed body exhibiting a metal color and, specifically, a gold color or a silver color is thus provided without using any expensive lustrous pigment such as metal powder pigment or flaky pigment.

主权项

1. A stretched and foamed plastic formed body forming, in at least a portion thereof, a foamed region which incorporates foamed cells therein, wherein:
said foamed cells have a flat shape with a maximum thickness of not more than 50 μm and an average aspect ratio of not less than 4 as viewed in cross section of the formed body perpendicular to a direction in which the formed body is stretched to a maximum degree; a non-foamed plastic skin layer having no foamed cell distributed therein is formed on the outer surface of said foamed region; and said formed body is blended with a non-lustrous pigment as the coloring agent, and exhibits a metal color over the foamed region thereof.