Zero alcohol type lithographic printing system

A lithographic printing system, zero alcohol technology, applied in lithographic printing equipment, lithographic rotary printing machine, printing and other directions, can solve the problem of eroding ink, difficult to control hue, damage to operator's health, etc., to exempt VOC emission tax , The effect of good dot hue restoration and natural environment improvement
CN106585071AActive Publication Date: 2017-04-26YUNNAN JOY PRINTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YUNNAN JOY PRINTING TECH CO LTD
Publication Date
2017-04-26

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Abstract

The invention relates to a zero alcohol type lithographic printing system. The zero alcohol type lithographic printing system comprises the following parts of a plate cylinder (3), a printing ink applying system (1) and a plate wetting water applying system (2), wherein the cylindrical outer surface of the plate cylinder (3) is provided with a printing plate (4); the printing ink applying system (1) comprises a printing ink source (8) and a plurality of printing ink rollers, and is used for applying printing ink onto the printing plate; the plate wetting water applying system (2) comprises a plate wetting water source (7) and a plurality of plate wetting water rollers, and is used for applying plate wetting water onto the printing plate; the plurality of plate wetting water rollers include a dampening vibrator (6); and the structure of the dampening vibrator (6) as follows includes a metal roller and a ceramic layer covering the outer surface of the metal roller; the outer surface of the ceramic layer is provided with a net pattern; and the content of alcohol type substances or ether type substances in plate wetting water is zero.
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Description

technical field

[0001] The invention belongs to the technical field of offset printing machines. Background technique

[0002] Traditional lithographic printing uses the principle that oil and water are immiscible. The places with patterns on the printing plate are water-repellent and ink-friendly, so as to realize the coating of ink on the printing plate; while the places without patterns on the printing plate are Coat a thin layer of dampening water film, which has the function of ink repelling and hydrophilic. Therefore, there will be no ink on the place covered by the dampening water film, and there will be no dampening water film on the place where there is ink. In order to make the dampening water film easier to form smoothly, it is necessary to reduce the surface tension of water. Therefore, in the prior art of lithographic printing, alcohol, isopropanol (IPA) or other alcohols and ethers substitutes must be added to the fountain solution to achieve the purpose of r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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