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Inkless laser ecological printing method

A laser and ecological technology, applied in printing and other directions, can solve problems such as deterioration of living environment, impact on recycling and environmental protection, and impact on human health, and achieve reduced processing costs, good low-carbon energy-saving effects, social benefits, and convenient preparation Effect

Inactive Publication Date: 2012-07-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of laser and inkjet printing, gases containing a large number of fine particles, heavy metals, and carcinogens such as benzene, aldehyde, and styrene will be produced, which will not only cause deterioration of the living environment (with printing devices) and affect human health. Moreover, the existence of ink also seriously affects the recycling and environmental protection of paper.

Method used

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  • Inkless laser ecological printing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 Ecological laser printing method

[0027] The flow of the eco-laser printing method is as follows: figure 1 shown. On the basis of inheriting the current laser printing method, it is mainly composed of laser generation and control system (1, 2), paper feeding system 3) and printing information system (5-7). Therefore, there is no need for the powder grain and forming and fixing system in the current laser printing technology; the laser with the above characteristics and the corresponding control device are selected; in this way, the laser is directly focused on the printing paper during printing, and the surface of the printing paper is discolored or ablated by high temperature. form text or patterns.

Embodiment 2

[0028] Embodiment 2 The laser system of ecological laser printing device

[0029] The laser beam emitted by the laser is injected into the acousto-optic deflection modulator through the reflector. At the same time, the binary graphic dot matrix information sent by the computer is sent from the interface to the font generator to form the binary pulse of the required font. Information, the signal generated by the synchronizer controls the high-frequency oscillator group, and then is added to the acousto-optic modulator through the frequency synthesizer and power amplifier to modulate the laser beam injected by the mirror. The modulated light beam is injected into the multi-faceted rotating mirror, and then the beam is focused by the wide-angle focusing lens and then shot to the surface of the printing paper, so that the angular velocity scanning becomes linear velocity scanning, and the entire scanning process is completed. At the same time, vertical scanning is realized by the ...

Embodiment 3

[0030] Embodiment 3 Example of simulated laser printing

[0031] By controlling different laser power and irradiation time (or scanning speed), simulated laser printing on ordinary printing paper can be obtained as follows: figure 2 clearly visible text or numbers. It is not completely black, but a kind of yellowish text: when the power is low, the color is bright yellow (such as figure 2 a), when the power is high, the color is golden (such as figure 2 b, 2c). Therefore, different printing effects can be achieved to a certain extent by adjusting the parameters.

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Abstract

The invention discloses an inkless laser ecological printing method. The method is characterized by comprising the following steps that: firstly, image and character information to be printed is converted into electronic image and character information which can be recognized by a printer; and secondly, a laser device emits laser and the laser reaches printing paper after passing through a laser adjusting and controlling system; the laser is focused on the electronic image and character information and the color of the surface layer of the printing paper is changed through light energy or heat energy, and thus characters or images are formed. The laser power can be set between 0.2 watt and 20 watt, the irradiation time of each printing point is 0.01-10 milliseconds (or scanning speed is 10-1000mm / s). According to the invention, no ink powder, ink liquid or coating is used and only common printing paper is used to reach a printing effect through laser; and therefore the method has excellent low-carbon energy-saving effect and social benefit.

Description

technical field [0001] The present invention relates to an ink-free ecological printing and printing technology, in particular to an ink-free ecological laser printing method, which is mainly used in printing devices such as office, household or industrial printers, printing machines, copiers, fax machines and all-in-one machines . Background technique [0002] After long-term development, printing technology has formed five major categories: needle type, laser, inkjet, thermal and 3D. Among them, dot matrix, thermal and 3D printers are used in some special fields such as printing bills, printing labels and three-dimensional model design; while laser and inkjet printers are widely used in industrial and commercial, office, news and household fields. Therefore, today's printing technology is very sophisticated, and its printing effect basically meets people's requirements. However, in the process of laser and inkjet printing, gases containing a large number of fine particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/475
Inventor 陈锦祥谢娟王勇汪昕
Owner SOUTHEAST UNIV
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