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Variable printing medium having high glossiness, and recording method

A technology of printing medium and inkjet recording method, which is applied in the direction of duplication/marking method, printing, household utensils, etc., can solve the problems of poor ink absorption, impractical use of cast-coated paper, difficult to use high-speed printing quality photos, etc., to achieve High-speed and low-cost printing, the effect of excellent printing quality

Inactive Publication Date: 2012-04-25
RICOH KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, even when using this method, it is difficult to print quality photographs with high gloss surfaces at practical rates in variable printing
Among many commercial printing papers, cast-coated papers are too poor in ink absorbency, and when images are printed at high speeds, the image bleeds, causing image degradation that cannot be ignored in reproducing high-quality photographic images, making the use of cast-coated papers impractical

Method used

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  • Variable printing medium having high glossiness, and recording method
  • Variable printing medium having high glossiness, and recording method
  • Variable printing medium having high glossiness, and recording method

Examples

Experimental program
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preparation example Construction

[0173] [Preparation of ink]

[0174] The ink of the present invention contains at least water, a colorant, a water-soluble organic solvent, a wetting agent, and a surfactant, and further contains other components as necessary. These components are dispersed or dissolved in an aqueous solvent, and further stirred and mixed as necessary to prepare the ink of the present invention. The dispersion can be performed using a sand mill, a homogenizer, a ball mill, a paint shaker, or an ultrasonic disperser, and stirring and mixing can be performed by using a stirrer using a typical blade, a magnetic stirrer, or a high-speed disperser.

[0175] Physical properties of the ink such as viscosity, surface tension and pH are preferably within the following ranges.

[0176] The viscosity of the ink at 25°C is preferably 1 cps-30 cps, more preferably 2 cps-20 cps. When the viscosity is higher than 20 cps, it is difficult to ensure discharge stability.

[0177] The pH is preferably, for exa...

Embodiment

[0199] Hereinafter, examples of the present invention will be described, however, the examples should not be construed as limiting the present invention.

[0200]

manufacture example 1

[0201] (Manufacturing Example 1: Dispersion containing cyan pigment)

[0202] -Preparation of polymer fine particle dispersion containing copper phthalocyanine pigment-

[0203] Fully replace the interior of a 1L flask equipped with a mechanical stirrer, a thermometer, a nitrogen introduction tube, a reflux tube and a dropping funnel with nitrogen, and then charge 11.2 g of styrene, 2.8 g of acrylic acid, 12.0 g of lauryl methacrylate, 4.0 g polyethylene glycol methacrylate, 4.0 g styrene macromonomer (product name: AS-6, manufactured by TOGAOSEI CO., LTD.) and 0.4 g mercaptoethanol, and the temperature was raised to 65° C. Subsequently, 100.8g styrene, 25.2g acrylic acid, 108.0g lauryl methacrylate, 36.0g polyethylene glycol methacrylate, 60.0g hydroxyethyl methacrylate, 36.0g styrene macromer (product Name: AS-6, manufactured by TOAGOSEI CO., LTD.), a mixed solution of 3.6 g of mercaptoethanol, 2.4 g of azobisdimethylvaleronitrile, and 18 g of methyl ethyl ketone was droppe...

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Abstract

A printing medium including at least base paper and a coating layer, wherein the coating layer is directly formed on the base paper by a cast coating method using a coating liquid, which contains kaolin and amorphous silica and contains the amorphous silica in an amount of 3% by mass to 20% by mass.

Description

technical field [0001] The present invention relates to a recording medium which can achieve high-quality images and high-quality tones as excellent as silver halide photographs at low cost by an inkjet method, and which can be further used in offset printing and electrophotography; ink medium sets; and inkjet media using these an ink recording method; and an ink recorded matter. Background technique [0002] Inkjet (IJ) recording technology has encountered the development of common technology, thereby realizing high-quality images that can be superior to current silver halide photographs, and forming IJ printing technology, said common technology includes various peripheral technologies; for example, hardware such as inkjet Ink heads and press systems; supplies such as ink media; and control methods for controlling image processing and other systems. As disclosed especially in Patent Documents (PTL) 1 and 2, the IJ printing technology using water-based ink and porous media...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41J2/01B41M1/06B41M5/50B41M5/52C09D11/00C09D7/61C09D11/326C09D11/38
CPCC08K3/36C08K3/346C09D11/38B41M5/5218C09D7/1216B41M5/502C09D7/61B41J2/01
Inventor 大岛享南场通彦永井希世文长谷川笃小熊修一坂爪久登
Owner RICOH KK
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