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A liquid electronic ink receiving medium

A technology for accepting media and electronic inks, applied in the direction of copying/marking methods, printing, etc., can solve the problems of poor surface gloss of printing media, and achieve the effect of bright colors, improved practicability, and easy mass printing operations.

Active Publication Date: 2019-04-16
乐凯胶片股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface gloss of the prepared printing medium is poor, and the surface gloss of the printing medium must be improved by calendering.

Method used

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  • A liquid electronic ink receiving medium
  • A liquid electronic ink receiving medium
  • A liquid electronic ink receiving medium

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] Preparation of Cationic Inorganic Particle Dispersion:

[0046] According to the proportion, add the inorganic particles and water into the container, and disperse evenly at 5000rpm-10000rpm. Stir and add the cationic modifier at 100 rpm to 500 rpm, react at 30°C to 60°C for 1h to 10h, and prepare a cationic inorganic particle dispersion.

[0047] Preparation of ink receiving layer coating solution:

[0048] Add binder and curing agent into cationic inorganic particle dispersion liquid, stir evenly, and prepare ink receiving layer coating liquid with solid content of 3%-10%.

[0049] The coating method for coating the ink-receiving layer coating liquid on the support may be any known method, and may be a doctor blade coating method, an air knife coating method, a dip coating method, a spray coating method, or a gravure roll coating method. , slot coating method, rod coating method, slide extrusion coating method and the like.

[0050] Preparation of liquid electronic...

Embodiment 1

[0054] Preparation of Cationic Alumina Dispersion

[0055] Add 30g of alumina with a particle size of 0.5μm and 117ml of deionized water into the container, disperse for 1 hour under high-speed stirring at 8000rpm, and then add the cationic modifier diethylene Triamine 3g, continue stirring for 3h-5h to obtain cationic alumina dispersion. The zeta potential of the cationic alumina dispersion was +39.5mv.

[0056] Preparation of Ink Receiving Layer Coating Solution

[0057] Add 10% polyvinyl alcohol (polymerization degree 1700, hydrolysis degree 88%) 140g, 10% solid content cationic starch 140g, 50% solid content ethylene-vinyl acetate copolymer emulsion 74g (glass transition temperature) in cationic aluminum oxide dispersion liquid 60° C.), 0.03 g of curing agent boric acid, add deionized water until the overall solid content is 3%, stir evenly, let stand for defoaming, and obtain the ink receiving layer coating liquid.

[0058] Preparation of liquid electronic ink receptor...

Embodiment 2

[0061] Preparation of Cationic Barium Sulfate Dispersion

[0062] Add 30g of barium sulfate with a particle size of 1 micron and 117ml of deionized water into the container, disperse at 8000rpm with high-speed stirring for 1h, then add 3g of cationic modifier polyacrylamine at 40°C under stirring at 100rpm to 500rpm, Continue stirring for 3h to 5h to obtain a cationic barium sulfate dispersion. The ZETA potential was tested with a potentiometer from Shanghai Zhongchen Digital Technology Equipment Co., Ltd. to be +23.4mv.

[0063] Preparation of Ink Receiving Layer Coating Solution

[0064] Add 100g of 10% gelatin solution, 10g of polyethyleneimine, 80g of 25% solid content ethylene-acrylic acid copolymer emulsion (glass transition temperature 120 ℃), cross-linking agent formaldehyde 4g in cationic barium sulfate dispersion liquid, add deionized water to The overall solid content is 10%. Stir evenly, let stand to defoam, and obtain the ink receiving layer coating liquid.

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Abstract

A liquid electronic ink receiving medium comprises a support body and an ink receiving layer on one side or both sides of the support body. The ink receiving layer comprises, by weight, 30-60 parts of inorganic particles (a), 30-65 parts of an adhesive (b) and 0.03-10 parts of a curing agent (c). The inorganic particles are cationic inorganic particles. The adhesive is selected from one or more of water-soluble resin and binary or polybasic water-dispersible type copolymer emulsion. The liquid electronic ink receiving medium is smoothly conveyed on an HP Indigo series printing press without the paper jamming problem, the printed image is bright in color, the inking capacity is good, the printing ink fastness is good, and the image-stage image quality requirement is met.

Description

technical field [0001] The invention relates to an ink receiving medium, in particular to a liquid electronic ink receiving medium. Background technique [0002] With the continuous advancement of technology, electronic imaging technology is more and more widely used due to its advantages of fast printing speed, high image quality, easy personalization, and no pollution in the printing process. In particular, the particles of liquid electronic ink are finer than toner, so that It can achieve higher resolution and smoothness during printing, the edge sharpness of the formed image is higher, and the quality of the printed image is closer to that of the traditional silver salt image, so liquid electronic ink printing equipment is quickly popularized . The basic principle of electronic printing is to form an electrostatic latent image on the photoconductor by laser scanning, and then use the Coulomb force between the liquid electronic ink (the symbol is just opposite to the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/50
CPCB41M5/50
Inventor 张丽惠盖树人苏腾龙李孟倩王大庆柳青
Owner 乐凯胶片股份有限公司
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