Screen making method of digital printing imitating flat screen

Abstract

The invention relates to a screen making method of a digital printing imitating flat screen, and belongs to the technical of laser screen making, aiming at solving the problem of poor precision of laser screen making in the prior art. The screen making method of the digital printing imitating flat screen comprises the following steps: (1) carrying out color separating by virtue of a computer; (2) converting an image formed by color separating into a pixelated dot matrix set, wherein the dot matrix set is formed by combining a plurality of strip-shaped dot matrix sets which are fixed in width; (3) converting the processed dot matrix set image into a pulse signal, and conveying the pulse signal to a driver, wherein the driver can drive the opening and closing of a laser solid matter in a laser device; (4) stretching and prefabricating, and regulating the lens focus length of the laser so as to focus laser light on the flat screen; (5) starting a servo device on the stand, and driving the laser device to carry out laser dotting according to a preset dot set position; (6) developing and washing the flat screen obtained from laser screen making; and (7) trimming and banding the screen, and completing curing. The screen making method of the digital printing imitating flat screen disclosed by the invention has the advantages of high precision and high definition.

Description

technical field [0001] The invention belongs to the technical field of laser net making, and relates to a laser net making method, in particular to a digital printing flat net imitation method with stable driving and high net making precision. Background technique [0002] Before fabric printing in the printing and dyeing industry, the screen must be made first. Most of the traditional flat screens use the photosensitive screen method to make the screen. Carry out color separation, each color after color separation forms a different image, and transfer the image of the same color after color separation to black and white film; apply water-soluble photosensitive glue to a flat screen, and dry it in a dark room at low temperature. Then the above-mentioned color-separation black-and-white films are respectively coated on flat screens (one screen with one color), and the flat screen coated with black-and-white films is irradiated with strong ultraviolet light, and the light pass...

AI Technical Summary

Problems solved by technology

The disadvantages of the traditional flat net production method are: many net production processes, slow production speed, complicated process, need to use a large amount of film, high consumables, and can no longer adapt to the increasingly fierce international competition situation.

[0003] In recent years, wax-spraying and ink-jet web-making technologies have been developed at home and abroad. This technology saves the film and the wrapping process before exposure. The diameter of the hole is extremely small (≤0.05mm), which can easily cause blockage of the nozzle, difficult maintenance, and shutdown of production; the cost of consumable materials such as ink and black solid wax blocks used is high, and needs to be imported from abroad, which is controlled by the source of the technology blockade country , It is difficult to popularize and apply wax spraying and inkjet netting technology

[0004] In recent years, laser screen-making technology has also been developed, using the focused high-energy etching laser beam to vaporize the cured glue on the predetermined point of the flat screen and etch the printed pattern. Although the laser screen-making technology also saves the need for film And the wrapping process before exposure, but its shortcomings are: because the laser focus etching uses point-by-point etching, the efficiency is very low; therefore, the requirements for the driving module of the laser are relatively high, and the driving module of the ordinary laser cannot guarantee fast exposure pulses the accuracy of

In addition, it is difficult to control the accuracy of the lateral and vertical movement of the laser

If the precision is high, the dots to be etched on the flat screen will be denser, resulting in low laser etching efficiency, and lower precision requirements will cause the printing design to fail to meet the requirements

Therefore, at present, there is no laser netting equipment and its manufacturing method that can guarantee high speed and high precision at the same time on the market.

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