A method for transporting a protective film-forming film, a composite sheet for forming a protective film, and a work with a protective film-forming film.

摘要

PROBLEM TO BE SOLVED: To provide a protective film forming film for forming a protective film on the back surface of a divided object of a work, and when the film is conveyed by a conveying means in a state of being attached to the back surface of the work for forming the divided object. In addition, a protective film-forming film that suppresses the generation or visibility of contact marks caused by the contact of the transport means is provided. SOLUTION: A test piece having a width of 4 mm and a thickness of 200 ± 20 μm is produced by laminating a plurality of protective film forming films, the test piece is held, a tension mode having a wavelength of 11 Hz, and a heating rate of 3 ° C. The storage elastic modulus of the test piece was measured under the measurement condition of / min, the storage elastic modulus when the temperature of the test piece was 70 ° C. was set to E'70, and the wavelength of the protective film-forming film was 380 to 780 nm. When the maximum value of the light reflectance of is Rmax, the Y value calculated by the formula: Y = (log10E'70) 2 × Rmax is 260 or more, and is calculated by the formula: X = (log10E'70) 2. A protective film-forming film having an X value of 33 or more. [Selection diagram] None