Digital printing method of woodgrained paper

A technology of digital printing and wood grain paper, which is applied in the directions of printing, duplication/marking method, and photoengraving process of pattern surface, etc., to ensure the quality of the plate roller, the printing effect of the plate roller is good, and the degree of reduction is improved.

Active Publication Date: 2016-03-09
DONGGUAN YUNCHENG PLATE MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, the main substrates for digital proofing before gravure printing are high-quality glossy paper and high-quality suede paper. At the same time, dyed ink is used, which is very different from the substrates and inks used in traditional gravure printing. Especially for printing on 80g wood grain paper, the difference in product effect is more obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A digital printing method for wood grain paper, comprising the steps of:

[0039] (1) Document scanning: Scan the required document through the CRUSE scanner;

[0040] (2) Make color separation: color-separate the scanned file;

[0041] (3) Digital proofing: directly output the color-separated file through the printer for proofing, and use 80g wood grain paper as the substrate, compare the proofing product with the original manuscript, check whether the color separation structure is reasonable, and whether the proofing effect can meet the requirements. If the effect cannot meet the requirement, go back to the previous step and proceed to the color separation process; if the proofing effect can meet the requirement, proceed to the next step;

[0042] (4) Engraving and plate making: After the digital proofing effect is confirmed, the color-separated file is engraved on the plate roller to form a pattern;

[0043] (5) Printing: Install the prepared plate roller to the gra...

Embodiment 2

[0054] The difference between this embodiment and the above-mentioned embodiment 1 is:

[0055] In the step (1), the original is a wooden board.

[0056] In the step (4), laser engraving is used for engraving, and the parameters of laser engraving are: the motor power is 35W, the rotation speed of the roller body is 750r / min, the engraving time is 1.5h, and the focal length is 21mm.

[0057] In the step (4), the engraving width of laser engraving is 6 μm; the cross section of the cells formed after laser engraving is in the shape of "convex".

[0058] In the step (5), the ink used for printing is gravure water-based ink, and the gravure water-based ink includes the following raw materials in parts by weight: 45 parts of hydroxyl acrylic resin, 20 parts of color paste, 8 parts of polyethylene wax, and 2 parts of defoaming agent parts, 1.5 parts of nano-compounds and 15 parts of diluents; every part of the color paste includes the following raw materials in parts by weight: 35 ...

Embodiment 3

[0065] The difference between this embodiment and the above-mentioned embodiment 1 is:

[0066] In the step (1), the original is a fireproof board.

[0067] In the step (4), laser engraving is used for engraving, and the parameters of laser engraving are: the motor power is 40W, the rotation speed of the roller body is 800r / min, the engraving time is 2h, and the focal length is 22mm.

[0068] In the step (4), the engraving width of laser engraving is 8 μm; the cross section of the cells formed after laser engraving is in the shape of "V".

[0069] In the step (5), the ink used for printing is gravure water-based ink, and the gravure water-based ink includes the following raw materials in parts by weight: 50 parts of hydroxyl acrylic resin, 25 parts of color paste, 10 parts of polyethylene wax, and 3 parts of defoaming agent 2 parts, 2 parts of nano-compounds and 20 parts of diluents; each part of the color paste includes the following raw materials in parts by weight: 40 part...

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PUM

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Abstract

The invention relates to the technical field of gravure plate making, in particular to a digital printing method of woodgrained paper. The digital printing method comprises the steps of: (1) manuscript scanning; (2) manufacturing and color separation; (3) digital sample printing: files, after the color separation, are directly output and subjected to sample printing through a printer; printed objects adopt 80 g woodgrained paper; the sample products and manuscripts are compared to check if the color separation structure is reasonable and if the sample printing effect can satisfy the demands; if the sample printing effect cannot satisfy the demands, the color separation processing is performed again by returning to the last step; and if the sampling effect satisfies the demands, the next step is performed; (4) plate making through carving; and (5) printing. The digital printing method enables sample paper printed by a digital sampling system to be very approximate to actual printing sample paper through controlling a color management system and adjusting a process, preferably achieves actual gravure effects, improves the plate making quality, and reduces the rework rate.

Description

technical field [0001] The invention relates to the technical field of gravure printing, in particular to a digital printing method for wood grain paper. Background technique [0002] Digital printing is a new printing method that directly prints computer files on paper, which is different from the tedious process of traditional printing. Digital printing realizes a true one-page printing, no need for plate making, and full-color image completion at one time. It is a replacement product for traditional printing machines. It has the following characteristics: [0003] 1. Realize on-demand printing [0004] In the face of customers' sudden suggestions for document modification, traditional printing always seems helpless, and can only be re-produced in the pre-press link, which is a double waste of time and money for enterprises and customers. However, digital printing directly uses digital files for printing, which realizes variable data printing and optimizes the process f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41M1/02B41M1/36B41C1/02G03F3/02
CPCB41C1/02B41M1/02B41M1/36B41M5/0023G03F3/02
Inventor 王立杰张思典介国凯介江鹏
Owner DONGGUAN YUNCHENG PLATE MAKING
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