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Method for producing ink-jet printing substrate in curtain type coating manner

An inkjet printing and curtain application technology, applied in the field of printing substrates, can solve the problems of inaccurate and stable production control, poor color reproducibility, product quality fluctuation, etc., to achieve stable coating performance and coating process, and uniform ink absorption. The effect of consistent, uniform coating distribution

Active Publication Date: 2016-07-06
CHINA NAT PULP & PAPER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unit flow rate of the curtain in this experiment is 0.83~0.53g / m 2 , are relatively low, but there are different degrees of curtain opening phenomenon when coating single-fed paper, the curtain is not stable, only suitable for laboratory testing, not suitable for continuous production, and the coating is not for color inkjet printing Substrate Coating Formulation
[0007] At present, the quality of domestically produced inkjet printing substrates is not stable enough, especially the printing substrates for high-end art reproductions, which cannot meet the production requirements of high-end artworks
The main reason is that the domestic production process is not mature enough, and the production control is not precise and stable enough, which may easily cause fluctuations in product quality
When the produced products are applied, such problems as: printing color is not uniform enough (printing spots, printing blurring), poor color reproducibility, color gamut is not wide enough, pattern layering is poor, details are not good, etc.; When printing on the same paper, the color is inconsistent and there are problems such as color difference; there is still no good solution to the problems of transfer substrate printing, transfer printing, poor color reproducibility, etc.

Method used

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  • Method for producing ink-jet printing substrate in curtain type coating manner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] Art rice paper for color inkjet printing adopts 60g / m 2 The machine-made Xuan paper is base paper, the front coating adopts the curtain coating method, and the back coating adopts the gravure roller coating method. Both the surface and the back coating are coated once, and the coating production is completed at one time. Surfactants are added to the surface coating, the dynamic surface tension is 30mN / m, and the addition amount is 1.5‰ of the wet content of the coating; the dosage of thixotropic pigment calcium silicate is 20%, and the solid content of the coating is 25%; the unit flow rate of the coating curtain 0.8cm 2 / s; the coating speed is 250m / min, the die head of the curtain coating is the falling curtain type, and the gap width of the die head is 0.3mm; the coating temperature is controlled at 20-25°C during coating, and the coating amount is 10-12g / m 2 ;The back coating adopts surface sizing starch, the concentration is 10%, and the coating amount is 1~2g / m...

Embodiment approach 2

[0025] Dye sublimation transfer paper adopts 80g / m 2 The machine-made paper is base paper, the front primer layer is coated with a bar, the front layer is coated with a curtain coating, and the back layer is coated with a gravure roll. Complete coating production at one time. Surfactant is added to the top coating, the dynamic surface tension is 35mN / m, and the addition amount is 1.0‰ of the wet content of the coating; the amount of thickener is 0.2%; the amount of thixotropic pigment calcium silicate is 8%, and the solid content of the coating is 18 %; The unit flow rate of the paint curtain is 0.6cm 2 / s; the coating speed is 150m / min, the die head of the curtain coating is the falling curtain type, and the gap width of the die head is 0.4mm; the coating temperature is controlled at 20-25°C during coating, and the coating amount is 6-8g / m 2 ; The back coating adopts surface sizing starch, the concentration is 8%, and the coating amount is 1-1.5g / m 2 ; Moisture after coa...

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Abstract

The invention discloses a method for producing an ink-jet printing substrate in a curtain type coating manner, and particularly relates to a manufacturing method for the coating-layer-provided substrate used when a multicolor ink-jet printing machine is adopted for conducting color pattern printing. The method is characterized in that a continuously-rolled machined sheet is adopted as a coating substrate, coating of an ink-jet printing coating layer is carried out on the front face of the coating substrate in the curtain type coating manner, and an optimized coating formula can meet the requirement that curtain type coating normally runs under the lower car speed condition; the produced coating layer of the ink-jet printing substrate and the pore distribution of the coating layer are even and consistent; during printing, the ink absorption speed is high, the color is even and consistent, and the problems of printing dots, printing patterns and the like are solved; and the quality of products in different batches is stable, and obvious chromatic aberration can be avoided. According to the manufacturing method, high-end coating equipment is adopted, an advanced coating process is used in a combined manner to conduct production, stable production control can be achieved, and therefore the stable product quality is obtained. The problem that at present, high-end products cannot be produced in China is solved.

Description

technical field [0001] The invention relates to a production method of a printing substrate. Specifically, it is a method for manufacturing a coated substrate used for color pattern printing by a multi-color inkjet printer. Background technique [0002] With the rapid development of computer digital technology, it also drives the development and popularization of output devices, such as printers. Inkjet printers have gradually developed from the initial printing of simple office documents to printing for various purposes such as advertising, photo studio, artwork reproduction, personalized decoration, and fabric transfer printing. At the same time, the printing accuracy, printing speed, printing width and other performances of the printer have been greatly improved and developed, and the number of colors of the ink cartridge has also developed from the early four colors to a maximum of eleven colors. Some large-format four-color printers have developed from one set of ink ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00
CPCB41M5/0047
Inventor 王比松李洪才刘金刚
Owner CHINA NAT PULP & PAPER RES INST CO LTD
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