PLANOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF PRODUCING PLANOGRAPHIC PRINTING PLATE PRECURSOR

    公开(公告)号:US20210001618A1

    公开(公告)日:2021-01-07

    申请号:US17029188

    申请日:2020-09-23

    Abstract: Provided are a planographic printing plate precursor and a method of producing a planographic printing plate precursor, in which an image forming region during printing on newspaper page is ensured and edge stains are eliminated. Provided are a planographic printing plate precursor (10b) including an aluminum support (12) which has an anodized film (14), and an image recording layer (16) on the aluminum support (12), in which an end portion of the planographic printing plate precursor (10b) has a sagging shape having a sagging amount (X) of 25 μm to 150 μm and a sagging width (Y) of 70 μm to 300 μm, the image recording layer (16) contains an infrared absorbing agent, and a part or an entire side surface of two sides of the aluminum support (12), the two sides having the sagging shape and opposing each other contains an ink repellent agent (44); and a method of producing the planographic printing plate precursor (10b).

    WASHOUT PROCESSOR AND WASHING METHOD
    7.
    发明公开

    公开(公告)号:US20230166493A1

    公开(公告)日:2023-06-01

    申请号:US18159172

    申请日:2023-01-25

    CPC classification number: B41C1/003 G03F7/3085

    Abstract: Provided are a washout processor and a washing method in which a device configuration is small and processing such as development can be stably performed on a flexographic printing plate precursor. There is provided a washout processor that performs development using a washing solution while transporting an imagewise exposed flexographic printing plate precursor, the washout processor having a leader that fixes both of a leading end and a trailing end of the flexographic printing plate precursor and a tension applying unit that applies tension to the flexographic printing plate precursor.

    WASHING DEVICE AND WASHING METHOD

    公开(公告)号:US20210349394A1

    公开(公告)日:2021-11-11

    申请号:US17385298

    申请日:2021-07-26

    Abstract: Provided are a washing device and a washing method that achieve prevention of development scum adhesion, development uniformity, and development speed at the same time. This washing device performs development using a washing solution while transporting the flexographic printing plate precursor after imagewise exposure. The washing device includes a transport unit that transports the flexographic printing plate precursor along a predetermined transport path and a development unit that performs development on the flexographic printing plate precursor. The development unit includes a brush which is used for the development and a driving unit which controls rotation of the brush around a rotation axis and movement of the brush. The brush removes an unexposed portion of the flexographic printing plate precursor to perform the development, and the rotation axis of the brush is a fixed axis passing through one point in the brush. The driving unit rotates the brush in a state in which the rotation axis of the brush passes through a surface of the flexographic printing plate precursor, and moves the rotation axis of the brush in at least one direction intersecting the rotation axis.

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