Package structure of planographic printing plates and interleaf paper for packaging the same
AssigneeFuji Photo Film Co., Ltd.
InventorsYoshitaka Kawamura, Takayuki Usui
Life of this patent
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Abstract
An object of the present invention is to provide an interleaf paper for packaging planographic printing plates and preventing breakage of the plate-making layer at the time packaging, and a planographic printing plate package structure using a plurality of the above-mentioned interleaf paper. According to the invention, the interleaf paper for packaging the planographic printing plates is an interleaf paper, which contacts a plate-making layer of a planographic printing plate when packaging the planographic printing plates, and the interleaf paper contains Mg, Al, and Si, each at 0.5% by weight or less.
Claims7
A method for packaging planographic printing plates, comprising alternately layering planographic printing plates and interleaf papers, the interleaf papers having a Mg content of 0.05 to 0.27% by weight, an Al content of 0.15 to 0.41% by weight, and a Si content of 0.10 to 0.37% by weight.
Dependencies are inferred from the claim text.