Surface protective film and method for manufacturing organic light-emitting electronic device by using same

A surface protective film for drum roll lamination, comprising:

• a base layer sequentially comprising a first anti-static layer, a base film and a second anti-static layer;
• and
• an adhesive layer provided on a surface of the second anti-static layer, which is opposite to a surface on which the base film is provided,
• wherein the adhesive layer comprises a urethane based adhesive and satisfies the following Equation 1:
• (Adhesive Strength A)−(Adhesive Strength B)>0.5gf/in <Equation 1>
• wherein, in the surface protective film, a surface of the adhesive layer opposite to the surface in contact with the base layer is defined as a first surface, and a surface of the base layer opposite to the surface in contact with the adhesive layer is defined as a second surface,
• Adhesive Strength A is defined as the peel strength measured by attaching the first surface of the surface protective film to alkali-free glass using a 2 kg roller, followed by peeling the film from the glass at 25° C., at a peel speed of 2 m/min, and at a peel angle of 180°;
• and
• Adhesive Strength B is defined as the peel strength measured by attaching the second surface of the surface protective film to a drum pad using a 2 kg roller, followed by peeling the film from the drum pad at 25° C., at a peel speed of 2 m/min, and at a peel angle of 180° wherein a water contact angle of the second surface is 80° or more.