本专利介绍用N-烷基廿二酰胺防止胶片粘连的方法。此法是把碳黑或防光晕染料分散或溶解到高分子(碱溶性或疏水性)的溶液中,涂布到片基背面,干燥后形成防光晕层,避免胶片粘连。防光晕层在显影加工中去除,其高分子膜比明胶膜柔软,在摄影中故障少,也不会产生乳剂膜面和防光晕层相互粘连的现象。在高湿下亦可用。但在显 This patent describes a method of preventing film sticking with N-alkylosilamide. This method is to disperse or dissolve carbon black or anti-haze dye into the solution of polymer (alkali-soluble or hydrophobic), apply to the back of film base, and form anti-corona layer after drying to avoid film adhesion. Anti-halo layer in the processing of removal, the polymer film than the gelatin film soft, less trouble in photography, it will not produce emulsion film and anti-halo layer of mutual adhesion phenomenon. Also available under high humidity. But in significant