公开(公告)号：US3607270A

公开(公告)日：1971-09-21

申请号：US3607270D

申请日：1968-06-10

申请人： AGFA GEVAERT NV

发明人： HAES LOUIS DE ,  HOFMAN EMIEL ALEXANDER ,  GEVERS HUGO KAREL

IPC分类号： G03B27/50 ,  G03C8/06 ,  G03C8/28 ,  G03C8/52 ,  G03G15/28 ,  G03C5/54

CPC分类号： G03G15/28 ,  G03B27/50 ,  G03C8/06 ,  G03C8/28 ,  G03C8/52

摘要： A good quality reproduction can be obtained by the silver complex diffusion transfer process in a unitary permanently composite sheet material comprising of a nontransparent flexible sheet support, a light-sensitive silver halide emulsion layer and a layer containing an opaque white or colored pigment and a hydrophilic colloid binder, provided the pigment is present in amounts from 9-25 g. per sq.m. and the binder therefore in 0.5-3 g. per sq.m. and at least one photographic developing agent for the silver halide is contained in the material. Development nuclei for the complex silver halide can be supplied in an outer stratum of the pigmented layer or in a thin colloid layer superimposed thereon or can be incorporated in situ by means of a treatment bath containing the same which can be the alkaline processing liquid for forming the diffusion transfer image. Light-sensitive unitary composite materials useful for this purpose are also described.

公开(公告)号：US3582328A

公开(公告)日：1971-06-01

申请号：US3582328D

申请日：1968-01-11

申请人： AGFA GEVAERT NV

发明人： HAES LOUIS MARIA DE ,  VANHEERTUM JOHANNES JOSEPHUS ,  GEVERS HUGO KAREL

IPC分类号： G03F7/06 ,  G03C5/54

CPC分类号： G03F7/063

摘要： A PLANOGRAPHIC PRINTING PLATE IS PREPARED FROM SHEET MATERIAL CARRYING AN OUTER HYDROPHILIC COLLOID LAYER THEREON BY CREATING A PATTERN OF FINELY DIVIDED SILVER PARTICLES DISPOSED ESSENTIALLY AT THE SURFACE OF THE COLLOID LAYER AND TREATING THE COLLOID LAYER WITH AN AQUEOUS COMPOSITION CONTAINING MERCURY(II) IONS IN A SUFFICIENT CONCENTRATION OF ABOUT 5-50 GMS. PER LITER TO RENDER THE PATTERN OF SILVER PARTICLES RECEPTIVE TO A HYDROPHOBIC INK. IF NOT ALREADY HARDENED, THE COLLOID LAYER SHOULD BE HARDENED PRIOR TO PRINTING IN ANY CONVENTIONAL WAY IN ORDER TO PRECLUDE TRANSFER OF COLLOID MATERIAL FROM THE LAYER DURING PRINTING. THE PATTERN OF FINELY DIVIDED SILVER PARTICLES AT THE SURFACE OF THE LAYER IS PREFERABLY PRODUCED BY MEANS OF THE KNOWN SILVER COMPLEX DIFFUSION TRANSFER PROCESS, AND THE COLLOID LAYER CAN CONTAIN ONE OR MORE SUBSTANCES OFTEN REFERRED TO AS DEVELOPEMENT NUCLEI FOR PROMOTING THE DEPOSITION ON THE SURFACE THEREOF OF METALLIC SILVER PARTICLES FROM THE DIFFUSING COMPLEXED SILVER HALIDE, OR SUCH SUBSTANCES CAN BE SUPPLIED TO THE LAYER IN OTHER WAYS, SUCH VIA THE DEVELOPMENT BATH.

公开(公告)号：US3514597A

公开(公告)日：1970-05-26

申请号：US3514597D

申请日：1967-04-25

申请人： AGFA GEVAERT NV

发明人： HAES LOUIS MARIA DE ,  VANHEERTUM JOHANNES JOSEPHUS ,  GEVERS HUGO KAREL

IPC分类号： B41M5/04 ,  B41M5/36 ,  G03B41/16

CPC分类号： B41M5/04 ,  B41M5/36