Planographic printing plate packaging material and planographic printing plate packaging structure
OwnerTakayuki Usui, Tokiichi Masudainventors
Life of this patent
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Abstract
A surface of an interleaf sheet 14 for protecting a coating film of a planographic printing plate 10, which does not contact the coating film of the planographic printing plate 10, has a Bekk smoothness between 3 seconds to 55 seconds. A contacting portion of the interleaf sheet 14, which contacts the coating film, has a Bekk smoothness between 3 seconds to 900 seconds.
Claims18
A material for packaging a planographic printing plate, wherein the printing plate includes an imaging surface having a coating film and is to be fed through an automatic plate-feeding mechanism, the material comprising opposing surfaces, one surface being for contacting the imaging surface of a printing plate when the material is used for packaging the printing plate, and the opposing surface having a Bekk smoothness from 3 seconds to 55 seconds.
A package structure comprising:
- at least one planographic printing plate having an imaging surface for feeding through an automatic plate feeding mechanism;
- and
- a packaging material packaging the printing plate, the packaging material having opposing surfaces, with one surface contacting the imaging surface of the printing plate, and the opposing surface having a Bekk smoothness from 3 seconds to 55 seconds.
A material for packaging a planographic printing plate, wherein the printing plate includes a coating film, the material comprising a contact surface which contacts the coating film of a printing plate when the material is used for packaging the printing plate, the contact surface having a Bekk smoothness from 3 seconds to 900 seconds, and a noncontact surface opposing the contact surface.
A package structure comprising:
- at least one planographic printing plate having a coating film;
- and
- a packaging material packaging the printing plate, the packaging material having a contact surface which contacts the coating film of the printing plate when the material is used for packaging the printing plate, the contact surface having a Bekk smoothness from 3 to 900.
Dependencies are inferred from the claim text.