| abstract |
A viscosity-increasing agent, capable of increasing the viscosity ofna film-forming polymer in an image-functional layer, is preapplied in a firstnsolution onto a web through a coating and drying process. When a secondnsolution containing the film-forming polymer is then coated on the web, thenviscosity-increasing agent diffuses through the applied second solution. As thenviscosity-increasing agent interacts with the film-forming polymer during thisndiffusion process, the viscosity of the solution increases. The invention can benused to improve the manufacture of ink-jet media, photographic ornphotothermographic elements, and other imaging and image-receiving media. |