RETRO-EFFECTIVE FOLLOWS AND PROCEDURES FOR THEIR ESTABLISHMENT

摘要

Retro-reflecting film, having:a heat resistant film (41);a first thermoplastic binding medium (23) formed on the heat resistant film (41);a first non-flammable layer (21) formed on the first thermoplastic binding medium (23);a coloured layer (19) formed on the first non-flammable layer (21);a light-permeable layer (17) formed on the coloured layer (19);a coloured part (26),which has a first layer of light collection (15) formed on the translucent layer (17) and in which a coloured area is defined so that the translucent layer (15) of the coloured area passes through the light supplied by the first layer of light collection (15),and the light emitted at an interface with the coloured layer (19) so that a proportion of the scattered light is emitted outwards through the first light collection layer (15) together with fluorescent light or in the coloured layer (19);a second thermoplastic binding medium (37) which is thermally pressed to a reflecting area on the first layer of light collection (15) to define the colour range;a second non-flammable layer (35) formed on the second thermoplastic binding medium (37);a reflective layer (33) formed on the second non-flammable layer (35);anda reflecting part (43), which has a second light collection layer (31), which is formed on the reflecting layer (33), so that the reflecting layer (33) reflects light which is delivered to the reflecting area by the second light collection layer (31).