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Ink jet recording sheet and imaging method

An inkjet recording method and technology for recording sheets, applied in the directions of copying/marking methods, printing, layered products, etc., can solve problems such as difficult effects, decreased ink absorption of porous layers, and inability to have sufficient effects.

Inactive Publication Date: 2008-08-20
KONICA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, on inkjet recording sheets with microvoids, the effect is hardly satisfactory
There is a problem that when a large amount of said various anti-fading agents is added to obtain a satisfactory anti-fading effect, the ink absorbency of the porous layer decreases
[0009] Further, in the case of using a water-soluble dye ink, there are problems due to high hydrophilicity: generation of bleeding (bleeding) and disadvantages of poor water resistance
It was observed that bleeding was reduced to some extent and water repellency was improved by using cationic polymers or polyvalent metal ions, however due to uneven distribution of dyes bound by cationic polymers or polyvalent metal ions in the ink absorbing layer, even Addition of the aforementioned anti-fading agents with negligible diffusivity in the ink-absorbing layer was also often found to be insufficiently effective

Method used

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  • Ink jet recording sheet and imaging method
  • Ink jet recording sheet and imaging method
  • Ink jet recording sheet and imaging method

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specific example

[0066] Specific examples of zirconium atom-containing compounds suitable for use in the present invention, such as zirconium difluoride, zirconium trifluoride, zirconium tetrafluoride, hexafluorozirconate (such as potassium salt), heptafluorozirconate (such as sodium salt , potassium salt, ammonium salt, etc.), octafluorozirconate (such as lithium salt), zirconium fluoride oxide (zirconium fluoride oxide), zirconium dichloride, zirconium trichloride, zirconium tetrachloride, hexachlorozirconate (such as sodium and potassium salts), zirconium oxychloride (zirconium oxychloride), zirconium dibromide, zirconium tribromide, zirconium tetrabromide, zirconium oxybromide, zirconium triiodide, tetraiodide Zirconium, zirconium peroxide, zirconium hydroxide, zirconium sulfide, zirconium sulfate, zirconium p-toluene sulfonate, zirconyl sulfate, sodium zirconium sulfate (sodium zirconium sulfate), acid zirconyl sulfate trihydrate, potassium zirconyl sulfate, selenium Zirconium acid, zirco...

Embodiment 1

[0113]

[0114] 400L of pre-uniformly dispersed silica dispersion B-1 (pH value is 2.6, containing 0.5% ethanol), which contains 25% of silica (Aerosil 300 produced by Nippon Aerosil Co., Ltd.) prepared by gas phase method, Its average primary particle size is about 0.007 μm, and it is added to 110 L of aqueous solution C-1 (pH value is 2.5, containing 2 g of San NOPCO LIMITED production) containing 12% cationic polymer P-1 and 2% ethanol at room temperature. Foaming agent SN-381), while stirring at a speed of 300rpm. Then, 54L of boric acid and borax in a weight ratio of 1 / 1 mixed aqueous solution A-1 (both concentrations are 3%) was slowly added while stirring.

[0115] Using a high-pressure homogenizer produced by Sanwa Industries Co., Ltd., at 3000N / cm 2 The solution was dispersed under pressure, and the volume was increased to 630 L by adding pure water to prepare nearly transparent silica dispersion D-1.

[0116] Cationic polymer P-1

[0117]

[0118]

[0119] ...

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PUM

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Abstract

An ink jet recording sheet having a porous ink receiving layer is disclosed. The porous ink receiving layer contains a compound which has a plural number of non-aromatic carbon-carbon unsaturated bonds in a molecule, inorganic particles and a hydrophilic binder. An image forming method employing the ink jet recording sheet and a water-base ink is also disclosed.

Description

technical field [0001] The present invention relates to an ink jet recording sheet suitable for water-based dye ink, especially an ink jet recording sheet suitable for water-based dye ink, which, compared with a photographic image, has Outstanding ink absorption, high image visibility, ability to record high-quality images, and outstanding storage stability. The present invention also relates to a method of using an inkjet recording sheet and a water-based dye ink to obtain an ink image having high image visibility, good image quality, and outstanding image storage stability compared to photographic images sex. Background technique [0002] In recent years, the image quality of inkjet recording materials has been rapidly improved, approaching the quality of photographic images. In particular, inkjet recording sheets (hereinafter, also simply referred to as recording sheets) have also made progress in achieving image quality equivalent to photographic images by inkjet recor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00B41J2/01B32B3/00B41M5/50B41M5/52
CPCB41M5/5218B41M5/52B41M5/5254B41M5/5245B41M5/00
Inventor 加藤荣作朝武敦牛久正幸
Owner KONICA CORP