METHOD FOR MANUFACTURING REFLECTION SHEET

摘要

PROBLEM TO BE SOLVED: To provide a method for easily manufacturing a reflection sheet having excellent reflection performance.

SOLUTION: The method for manufacturing the reflection sheet includes a process (i) of coextruding a resin composition (a) containing a polypropylene resin (A) and a resin (B) which is incompatible with the polypropylene resin (A) at temperature at which the polypropylene resin (A) can be stretched and a resin composition (b) containing a polypropylene resin (C), a process (ii) of biaxially stretching and boring a sheet obtained at the process (i) and a process (iii) of carrying out heat shrinkage of the sheet obtained at the process (ii) by 10% or more at least in one direction between a longitudinal direction and a vertical direction.

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