Ink jetting record material

A technology for inkjet recording materials and inks, which is applied in the direction of copying/marking methods, printing, printing devices, etc., and can solve problems such as insufficient back bleeding improvement, insufficient ink holding layer, restrictions on gloss, image clarity, and hand feeling, etc.

Inactive Publication Date: 2002-09-25
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, glossiness, image clarity, and feel are limited, and it is not sufficient only for the ink receiving layer. In Japanese Patent Application Laid-Open No. 9-234944, it is proposed to absorb water and high-boiling point alcohol by making the opposite surface of the ink receiving layer Improved caking and back seepage above a certain level, but the improvement of back seepage is not sufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] A light-transmitting support as shown below was prepared. After performing corona discharge treatment on both sides of a blue polyethylene terephthalate film (opacity 15%) with a thickness of 175 μm, a primer layer with the following composition is provided to make the dry film thickness 0.3 μm. Primer layer: latex (weight average molecular weight 42000) of vinylidene chloride: methyl acrylate: acrylic acid (90:9:1, % by weight)

[0075] An undercoat coating solution having the following composition was coated on the above-mentioned support with a slide bead coating device, followed by drying. The bottom coating coating solution is adjusted to a solid content concentration of 12% by weight, and the coating and drying are carried out so that the coating amount of the solid content is 5 g / m 2 . Next, the ink receiving layer coating solution of the following composition was adjusted to a solid content concentration of 10% by weight, coated and dried so that the solid c...

Embodiment 2

[0079] In Example 1, the inkjet recording material of Example 2 was obtained in the same manner as in Example 1 except that the ink receiving layer was formed into two layers and had the following composition. The fumed silica of the ink receiving layer A for the lower layer is dimethyl diallyl ammonium chloride homopolymer, and the imitation boehmite is dispersed by a high-pressure homogenizer with nitric acid at a solid content concentration of 21% by weight. , and then the solid content concentration was adjusted so that the ink receiving layer A coating liquid was 12% by weight, and the ink receiving layer B coating liquid was 10% by weight. The fumed silica coated with these coating liquids as the ink receiving layer A is 16 g / m in terms of solid content 2 , the imitation boehmite of the ink holding layer B is 6g / m according to the solid content 2 . The evaluation results are shown in Table 1. 100 parts of fumed silica (average primary particle size 20nm) 4 parts of d...

Embodiment 3

[0082] In Example 2, the inkjet recording material of Example 3 was obtained in the same manner as in Example 2 except that the composition ratio of the ink-accommodating layer B coating liquid was changed as follows. The evaluation results are shown in Table 1. 95 parts of imitation boehmite (average primary particle size 15 nm, flat plate shape with aspect ratio of 5) 1 part of nitric acid 5 parts of wet-process silica (manufactured by Nippon Silica Co., Ltd., Nipsil) E-220A, average particle size 2μm) boric acid 0.3 parts polyvinyl alcohol 15 parts (saponification degree 88%, average polymerization degree 3500) surfactant 0.3 parts zirconium acetate 2 parts

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Abstract

An inkjet recording material, in which at least one ink receiving layer is provided on one side of a light-transmitting support, and at least one bottom coating layer is provided on the opposite side, wherein the bottom coating contains primary particles with an average particle diameter of 5 to For 50nm inorganic particles and binders, the porosity is 70% by volume or less. Provided is an inkjet recording material which has high ink absorbency, high printing density, no problem of printer conveyance and back bleeding, and excellent visibility by means of backlighting.

Description

technical field [0001] The present invention relates to an inkjet recording material using a light-transmitting support, particularly for medical applications, which is excellent in ink absorption, printing density, light transmission, and printer transportability, and is excellent in back transcription of printed images inkjet recording materials. Background technique [0002] In the medical field, in addition to using expensive silver salts, the commonly used silver salt photographic photosensitive materials have to undergo wet processing such as developing processing, which leads to the problem of waste liquid. There is a problem of ink falling off in the way of thermal copying, and there is a problem of low printing density in the way of sublimation. On the other hand, the inkjet recording material is a completely dry recording method, which has advantages such as less noise, easy change of recording pattern, and accurate and rapid image formation. [0003] As an inkje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M5/00B41M5/50B41M5/52
CPCB41M5/504B41M5/508B41M5/52B41M2205/36B41M5/5218B41M5/5254
Inventor 永岛武金子智
Owner MITSUBISHI PAPER MILLS LTD
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