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Ink media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter

An ink composition and ink technology, applied in the field of inkjet recording methods, inkjet recording devices and ink recording objects, can solve the problems of beading and dryness that cannot be solved, and achieve high color saturation and high gas resistance Effect

Inactive Publication Date: 2009-05-06
RICOH KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These proposals can make water resistance and air resistance comparable to that of pigments, but their applications are limited to recording on plain paper and inkjet recording paper, and cannot solve problems such as when recording is performed on a relatively low-absorbency recording medium similar to the present invention. Beading and dryness issues

Method used

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  • Ink media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter
  • Ink media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter
  • Ink media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter

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Embodiment

[0344] The present invention will be described with reference to examples, but the invention should not be limited thereto at all.

[0345] Polymer preparation

[0346] Three polymers were prepared as follows.

[0347] Polymer 1:

[0348] Styrene acrylic polymer (product name: Johncryl 586, Johnson Polymer Co., mass average molecular weight: 4,600, glass transition temperature Tg: 60°C)

[0349] Polymer 2:

[0350] Raw materials of the composition shown below were charged into a 2L four-necked flask equipped with a water outlet, a thermometer, a nitrogen inlet and a stirrer, and the mixture was heated to 180°C over 3 hours while dehydrating to cause a dehydration condensation reaction, thereby synthesizing polyester resin.

[0351] Element

[0352] Cardura E-10P *1) 10 parts by mass

[0353] 27 parts by mass of adipic acid

[0354] 42 parts by mass of hexahydrophthalic anhydride

[0355] 2 parts by mass of neopentyl glycol

[0356] 26 parts by m...

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PUM

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Abstract

An ink-media set, comprising an ink composition and a recording medium, wherein the ink composition comprises a polymer fine particle containing a dye and an inorganic pigment particle, a water-soluble solvent, and water, and has a surface tension of 20 mN / m to 35 mN / m at 25 DEG C, and the recording medium comprises a support and a coating layer on at least one side of the support, and the amount of pure water transferred to the recording medium is no less than 2 ml / m2 and less than 35 ml / m2 at a contact period of 100 ms and the amount of pure water transferred to the recording medium is no less than 3 ml / m2 and less than 40 ml / m2 at a contact period of 400 ms by measurement of a dynamic scanning absorptometer.

Description

technical field [0001] The present invention relates to an ink-media set and an ink composition that can provide high-quality images with high color saturation and sufficient tone even on recording media with low ink absorption, and to inkjet inkjet using the ink-media set Recording method, inkjet recording apparatus, and ink recorded matter. Background technique [0002] Inkjet printers have undoubtedly become popular due to their low environmental noise and low running costs, and color printers capable of printing on plain paper have gained significant popularity in the market. However, it is difficult to meet requirements including color reproducibility of images, abrasion resistance, light resistance, gas resistance, water resistance, drying properties of images, character spreading (feathering), spreading at color boundaries (bleeding) color), density unevenness of solid parts (beading), double-sided printability, and ejection stability, so that the ink composition and...

Claims

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Application Information

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IPC IPC(8): B41M5/00B41M5/52B41J2/01C09D11/00B41M5/50C09D11/328
Inventor 松山彰彦有贺保诸星直哉大嶋亨后藤宽
Owner RICOH KK
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