Patent ID: 6514365
Filing Date: 2003-02-04
Classification: G03B,G03C,Y10T

Abstract:
A process for forming a light-reflecting bar code on an end disc of photographic film spool, comprising the steps of:placing on the end disc of photographic film spool a hot-stamp film comprising, in order, an adhesive layer, a light-reflecting metal layer, a transparent protective layer, a releasing layer, a support film of polyethylene terephthalate or polyethylene naphthalate, and a stain-shielding layer formed of a compound having a siloxane bonding or of deposited inorganic oxide in such manner that the adhesive layer is brought into contact with the end disc and pressing for a period of 0.1 to 2.0 seconds a stamper which has a bar code-stamping die heated to 150 to 200Â° C. so as to transfer the light-reflecting metal layer onto the end disc in the form of the bar code.