초록

The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, and a layer of microvoided biaxially oriented polyolefin sheet between said paper base and said silver halide layer.

대표청구항 ▼

[ We claim:] [1.] A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer. [12.] The element of claim 1 further comprising a copy restricti

[ We claim:] [1.] A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer. [12.] The element of claim 1 further comprising a copy restrictive pattern of microdots positioned between said at least one silver halide layer and said biaxially oriented polyolefin sheet. A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a top microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer, a lower biaxially oriented polyolefin sheet on the lower side of said base paper from said photosensitive silver halide layer wherein said top microvoided polyolefin sheet comprises a skin layer on each surface. The photographic element of claim 13 wherein said top microvoided polyolefin sheet comprises a sheet of a percent solid density between about 77% and about 100%. The photographic element of claim 13 wherein said top microvoided polyolefin sheet has a thickness of between about 13 and 65 .mu.m. The photographic element of claim 13 wherein said top microvoided polyolefin sheet comprises a layer comprising titanium dioxide. The photographic element of claim 16 further comprising a layer of polyethylene between said top microvoided sheet and said paper base. The photographic element of claim 13 wherein said top microvoided sheet has a Young's modulus of between about 689 MPa to 5516 MPa. The element of claim 13 wherein said top sheet has a water vapor transmission rate of less than 1.55.times.10.sup.-4 g/mm.sup.2 /day/atm.