Patent ID: 8416375

Claim:
A process for producing a light-reflective film comprising: (a) applying a curable liquid crystal composition to a first film having a thickness of d 1 ; (b) drying the applied curable liquid crystal composition to form a cholesteric liquid crystal phase; (c) carrying out a curing reaction of the curable liquid crystal composition and fixing the cholesteric liquid crystal phase to form a lower layer; (d) repeating the set of the steps (a)-(c) three or more times on the lower layer to form a light-reflective multilayer having four or more layers of a fixed cholesteric liquid crystal phase; and (e) transferring the light-reflective multilayer, formed on the first film, onto a second film having a thickness of d 2 which is smaller than d 1 ; wherein the first film, fulfilling the condition of formula (1), is used: ( d 1 ) 2 × ( Y 1 ) ( d 3 ) × ( 1 - P 1 ) ≧ 0.0002 ( 1 ) where d 1 is a thickness (mm) of the first film; Y 1 is a Young's modulus (N/mm 2 at 25 degrees Celsius) of the first film; P 1 is a Poisson's ratio (at 25 degrees Celsius) of the first film; and d 3 is a total thickness (mm) of the light-reflective multilayer having four or more layers of a fixed cholesteric liquid crystal phase, where d 3 is equal to or more than 15 micro meters.