| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface protectively film not peeling from an optical member by an environmental change in such as temperature or humidity, satisfying fundamental performance allowing peeling and separation for the optical member without leaving an adhesive when peeling, and allowing easy peeling and separation by hand or a machine without giving damage to the optical member or peeling from a liquid crystal cell even after heating such as a aging. SOLUTION: This protective film 1 adheres to and covers the surface of an optical member 2. On the basis of a 180 deg. peeling test at a peeling velocity of 300 mm/minute, an adhesive force of the protective film 1 to the optical member 2 at normal temperature after they are left in 80 deg.C atmosphere is below 1.3 times the adhesive force when they are left in normal temperatures. Thereby, even if heating such as aging or the like is applied, an increase of the adhesive force is small to easily peel and separate the protective film 1 from the optical member 2. |
