发明名称 PHOTOGRAPHIC FILM UNIT AND METHOD OF MANUFACTURE
摘要 A self-developing, photosensitive film unit including a multilayer photosensitive element and a transparent image-recording element laminated to one another during manufacture and a rupturable container of processing liquid attached to the elements at one end for dispensing its liquid contents between the elements, and adapted to be processed by passing the film unit including the container and laminated elements between a pair of pressure-applying members. The film unit is formed by laminating a photosensitive element to an image-receiving element by applying a layer of a film-forming agent to one of the elements, superposing the elements and distributing a layer of a second film-forming material therebetween to form an adhesive bond that is weaker than the bond between any other layers of said film unit and is adapted to rupture readily during the spreading of a processing liquid between the elements. A binding is secured around at least two sides of the laminate and a container of processing liquid is attached to one edge of the sandwich in position to eject its contents between the elements in response to the application of compressive pressure.
申请公布号 US3652282(A) 申请公布日期 1972.03.28
申请号 USD3652282 申请日期 1969.03.06
申请人 POLAROID CORP. 发明人 EDWIN H. LAND
分类号 G03C8/08;G03C8/44;(IPC1-7):G03C1/48 主分类号 G03C8/08
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