| 摘要 |
PROBLEM TO BE SOLVED: To provide a tubular material and a stretchable label which have sufficient center sealing strength due to adhesion by laser irradiation and can be manufactured with high production efficiency. SOLUTION: This tubular material is formed of a cylindrically formed film 3 by overlapping both end parts 3a, 3b of a synthetic resin film 3 and bonding the parts by laser irradiation. The film 3 has an intermediate layer 1 and a surface layer 2 laminated on both face sides of the intermediate layer 1, which is formed of a material with higher laser absorbing properties than the surface layer 2. |
