Receiver sheet for toner images

A method of forming a receiver sheet adapted for the transfer thereto of thermoplastic electrostatic toner powder which comprises

• forming a blend of a major amount of a molten thermoplastic matrix polymer and of a minor amount of cavitating microbeads of a polymer which is incompatible with the matrix polymer,
• coextruding the blend of molten matrix polymer and microbeads with a molten homogeneous polymer of lower glass transition temperature lower than the melting temperature of the matrix polymer,
• recovering a coextruded laminated sheet comprising a layer of the matrix polymer and uniformly dispersed microbeads bonded to a layer of the homogeneous polymer, and
• orienting the laminated sheet to create in the matrix polymer layer light-scattering voids surrounding each microbead, the resulting laminated sheet having a smooth surface of low glass transition temperature for receiving toner particles and, by virtue of the voids in the matrix polymer, being substantially opaque and highly light reflective.

A method of forming on a light reflecting receiver sheet a developed toner image having large, substantially continuous areas of toner which comprises

• forming a latent electrostatic image on an element,
• developing the image by applying a thermoplastic toner particles to the latent image on the element,
• transferring the toner particles of the developed image including large continuous areas of toner, to a receiver sheet by contacting the sheet with the element, and
• fusing and fixing the toner particles to the receiver sheet by pressing the transferred toner on the receiver sheet at a temperature above about 110.degree. C.
• said receiver sheet comprising a non-fibrous but paper-like, microvoided, polymeric sheet which is substantially opaque and is highly reflective to visible light and which comprises a continuous matrix of oriented thermoplastic polymer having dispersed therein microbeads of a different polymer each of which is surrounded by a void space.