| 摘要 |
<p>PURPOSE:To prevent a peeling of the adhesion between photographic layers by coating a solution contg. a polyisocyanate compd. having more than two isocyanate groups on the coated layer followed by drying, and then, by coating the obtd. coated layer with a coating solution. CONSTITUTION:The solution of the polyisocyanate compd. contg. at least two isocyanate groups is coated on the coated layer of the first photographic layer in a rate of 2-20cc/m<2> of the layer followed by drying, and then, the coating solution of the second photographic layer is coated on the coated layer of the first photographic layer. The first and the second photographic layers are necessary to contain the compd. having a functional group reactive to the isocyanate group, such as a hydroxy, a carboxyl and an amino groups. The compd. having the functional group comprises for example, polyacrylic acid etc. The preferable compd. of the usable polyisocyanate is the compd. shown by the formula.</p> |
