| 摘要 |
<p>PURPOSE:To obtain a color light separating film having excellent face resistance by using a photosensitive agent consisting of low mol.wt. gelatin and dichromate groups and introducing a dye soln. contg. a UV absorber into dyed parts after exposure, photosetting and pattern development. CONSTITUTION:100ml aq. soln. of 10% low mol.wt. gelatin of <=20,000, more preferably 2,000-20,000 number average mol.wt. and 10ml aq. soln. of ammonium dichromate are mixed and the mixed solns. are coated on a glass substrate and are dried, whereby a photosensitive film is formed. UV rays are irradiated to the film via a mask to photoset the film, and the film is developed, whereby pictures are formed. Thereafter, a methanol soln. dissolved with a UV absorber is compounded with a prescribed aq. dye soln. and the soln. is introduced into dye picture parts, whereby a color light separating filter is obtained. Here the filter introduced with the UV absorber is lower by about 80% in the rate of deterioration of fade resistance as compared to the filters without introduction of said absorber and the color light separating filter usable for a long time is obtained.</p> |
