Fabrication of holograms on plastic substrates

A process for fabricating a hologram which comprises:

• (a) forming a layer of a polycrystalline, optically transparent, moisture barrier material on at least a portion of an optically transparent hydrophobic substrate by a process which generates a temperature at the substrate of less than that of its softening point at which it deforms;
• (b) forming a layer of a hydrophilic, polar material on at least a portion of the moisture barrier layer by a process which generates a temperature at the substrate less than that of its softening point;
• (c) forming a layer of a hydrophilic, photosensitive material on at least a portion of the layer of hydrophilic, polar material;
• (d) exposing the photosensitive layer to an actinic interference pattern to record a latent image thereon;
• (e) developing the photosensitive layer to obtain the recorded latent image;
• and
• (f) forming a protective layer on at least a portion of the photosensitive layer, the protective layer including a layer of a polycrystalline, optically transparent, moisture barrier material and a layer of a hydrophilic, polar material.