Recording material for ink-jet

A recording material, inkjet technology, applied in thin material processing, copying/marking methods, printing, etc., can solve problems such as scratches, large average pigment particle size, poor light resistance and water resistance

Inactive Publication Date: 2003-01-29
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these pigments used in the base layer have a large average particle size of several μm or more, and sufficient gloss cannot be obtained.
In addition, in order to obtain sufficient gloss, it is necessary to increase the coating amount of aluminum oxide or aluminum oxide hydrate on the surface layer, and as a result, ink absorption decreases.
In this way, both the glossiness and the ink absorbency cannot be sufficiently satisfied.
[0010] In the past, water-based dyes have been exclusively used as colorants for inkjet recording inks. However, water-based dyes have disadvantages of poor light resistance and water resistance. Therefore, in recent years, pigment inks with excellent light resistance and water resistance have begun to be used.
However, pigment inks must disperse insoluble pigment particles in water for stable storage
In addition, there is a problem that ink dryness and rub resistance after printing with pigment inks tend to decrease compared with water-based dyes
Also, pigmented inks generally have poor ink absorption compared to water-based dyes
[0011] On the other hand, like the above-mentioned fumed silica, alumina or alumina hydrate, the surface smoothness of the inkjet recording material having a void structure obtained by using ultrafine particles is high, and high gloss can be obtained, but in addition On the one hand, there are disadvantages such as relatively weak surface strength, scratches caused by contact with rollers during manufacturing or processing, or damage to the surface is easy to occur when multiple sheets are overlapped and fed for printing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075]

[0076] A 1:1 mixture of broadleaved kraft pulp (LBKP) and softwood bleached sulphite pulp (NBSP) was beaten to 300ml with Canadian·Standard·Freeness to prepare pulp slurry. 0.5% by weight of alkyl ketene dimer relative to pulp was added as a filler, 1.0% by weight of polyacrylamide relative to pulp, 2.0% by weight of cationized starch relative to pulp, and 2.0% by weight relative to pulp were added. 0.5% by weight polyamide epichlorohydrin resin is used as a strength agent and diluted with water to prepare a 1% slurry. This slurry is pulped to a paper weight of 170g / m with a fourdrinier paper machine 2 , dry and adjust the humidity to make the base paper of polyolefin resin covered paper. Relative density 0.918g / cm 3 100% by weight of low-density polyethylene resin, a polyethylene resin composition in which 10% by weight of anatase titanium is melted and uniformly dispersed at 320°C, and extrusion-coated on the pulp base paper at 200m / min, The thickness was adjus...

Embodiment 2～4

[0086] Except that the solid component weight of the fumed silica of the ink receiving layer A and the pseudo-boehmite of the ink receiving layer B is replaced with that shown in Table 1 in Example 1, it is carried out in the same manner as in Example 1 to obtain the implementation Inkjet recording materials of Examples 2 to 4. The evaluation results are shown in Table 1.

Embodiment 5

[0088] The inkjet recording material of Example 5 was obtained in the same manner as in Example 1, except that the fumed silica in the ink receiving layer A in Example 1 was replaced by a material having an average primary particle diameter of 30 nm. The evaluation results are shown in Table 1.

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Abstract

A recording material for an ink-jet which has a supporting material and, applied thereon, at least two ink receiving layers containing inorganic fine particles and a hydrophilic binder, characterized in that an ink receiving layer (A) being present nearest to the supporting material comprises a vapor phase method silica and an ink receiving layer (B) being present most apart from the supporting material comprises alumina or an alumina hydrate.

Description

technical field [0001] The present invention relates to an inkjet recording material, in particular to an inkjet recording material having high gloss, high ink absorption, high print density, excellent color rendering, and excellent surface strength. Background technique [0002] As a recording material used in the inkjet recording method, it is known that a support made of a pigment such as amorphous silica and a hydrophilic binder such as polyvinyl alcohol is provided on a support called ordinary paper or inkjet recording paper. A recording material made of a porous ink-absorbing layer. [0003] For example, such as JP 55-51583, JP 56-157, JP 57-107879, JP 57-107880, JP 59-230787, JP 62-160277 , JP-A-62-184879, JP-A-62-183382 and JP-A-64-11877, etc., it is proposed to simultaneously coat silicon dioxide and other silicon-containing pigments and hydrophilic pigments on paper supports. A recording material obtained with a water-based binder. [0004] In addition, in JP-A-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41M5/50B41M5/52
CPCY10T428/24893B41M5/5218B41M5/52B41M5/502B41M5/506Y10T428/24802
Inventor 木山秀人德永幸雄中谷华枝宫地宣昌
Owner MITSUBISHI PAPER MILLS LTD
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