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Method and apparatus for melting collected printing plate and method for recycling collected printing plate

A printing plate and recycling technology, used in printing, printing plates, printing processes, etc., can solve the problems of intensified oxidation and poor melting yield, and achieve the effects of inhibiting oxidation, improving energy efficiency, and high melting yield

Inactive Publication Date: 2012-01-25
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if the recycled printing plate is directly melted without being made into recycled crude metal ingots, the oxidation will be further aggravated, and the melting yield will be deteriorated.

Method used

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  • Method and apparatus for melting collected printing plate and method for recycling collected printing plate
  • Method and apparatus for melting collected printing plate and method for recycling collected printing plate
  • Method and apparatus for melting collected printing plate and method for recycling collected printing plate

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Embodiment Construction

[0039] Hereinafter, preferred embodiments of the method for melting recovered printing plates, the melting device, and the recycling method of the present invention will be described in detail.

[0040] figure 1 It is an explanatory diagram conceptually showing a melting device for recovered printing plates according to an embodiment of the present invention.

[0041] Such as figure 1 As shown, the melting device 11 is mainly composed of a first melting furnace 12 and a second melting furnace 13 .

[0042] First melting furnace 12 is used for dropping into new rough metal ingot 37 (refer to image 3 ) and a first opening / closing door 17 that can move up and down and can be freely opened and closed is provided at the first insertion port 15 . At this time, it is preferable to form a structure in which the first opening and closing door 17 can be closed in an airtight state with respect to the first insertion opening 15 by providing a gasket or the like at the first insertion...

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PUM

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Abstract

The present invention provides a method and an apparatus for melting collected printing plates, and a method for recycling collected printing plates that can reduce oxidation losses even when collected printing plates are directly melted together with new metal, and therefore it is possible to obtain a melting yield ratio as high as the melting yield ratio obtained when the collected printing plates are melted in a secondary metal state. New metal (37) is melted in a first melting furnace (12) so as to form molten metal (37A), and the molten metal (37A) is sent to a second melting furnace (13). In addition, a vortex (39) that sinks down into the molten metal (37A) of the second melting furnace (13) is formed, and collected printing plates (35) are fed into the vortex (39).

Description

technical field [0001] The present invention relates to a melting method, a melting device and a recycling method for recycled printing plates, in particular to a technique for improving the melting yield when the recycled printing plates are directly melted in a pre-rolling melting furnace of a rolling device. Hereinafter, the lithographic printing plate and recycled printing plate made of aluminum or aluminum alloy will be described, but they are not limited thereto, and they may be made of zinc or the like. Of course, it is important to pay attention to whether the lithographic printing plate and the recycled printing plate are made of aluminum or aluminum alloy. Background technique [0002] A lithographic printing plate is produced, for example, by forming a plate-making layer (photosensitive layer, etc.) on a roughened aluminum lithographic printing plate support. As the roughening treatment method, there are mechanical roughening treatment, electrochemical roughening...

Claims

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Application Information

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IPC IPC(8): B41N1/08C22B7/00C22B21/00
CPCF27B3/045F27B3/28F27D21/00F27D19/00F27D7/00C22B21/0092Y02P10/20
Inventor 长田正和
Owner FUJIFILM CORP