Long film and method for producing same

• Main Author: HIRANO YUYA
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

A long film having a plurality of knurled portions on at least one surface, the knurled portions including continuous linear protrusions as viewed in the thickness direction, the knurled portions being formed so as to be aligned in the longitudinal direction of the film, and the positions of the highest points and/or the lowest points of the protrusions of the knurled portions being dispersed in the width direction of the film. 一种长条膜，其在至少一面具有多个滚花部，上述滚花部包含从厚度方向观察呈连续的线状的凸部，上述滚花部在膜长度方向排列而形成，上述滚花部各自的凸部的最高的最高点和最低的最低点中的至少一者的位置在膜宽度方向分散。