Ink jet recording sheet

A recording film, inkjet technology, applied in the direction of electrography, copying/marking method, coating, etc., which can solve the problem of insufficient improvement, no research on ozone resistance, reduction of direct sunlight concentration and color tone change. full progress

Inactive Publication Date: 2006-09-06
TOMOEGAWA PAPER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of these metal compounds not only does not have a sufficient effect of improving the light resistance, but also has the disadvantage of reducing the sharpness of the image.
In addition, many reports such as JP-A-8-169177 have been proposed on methods for improving the anti-yellowing properties of ink-jet recording sheets, but their improvements are not sufficient. So far not practical
[0005] In addition, with regard to light resistance, indoor light is being studied, but the current situation is that research on methods for preventing density reduction and color tone changes under direct sunlight (sunlight) has not been sufficiently carried out.
Also, little research has been done on ozone resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The paper weight is 90g / m 2 As a base material, on one side of the base material, a coating solution obtained by dissolving and dispersing the materials of the following composition in water is sequentially laminated on the base material, coated and dried to provide an ink receiving layer and gloss The degree adjustment layer was formed to prepare the ink-jet recording sheet of Example 1 of the present invention. In addition, the dry coating amount of the ink receiving layer and the glossiness adjusting layer is 10 g / m 2 .

[0042] 〔Ink receiving layer〕

[0043] · Binder resin

[0044] PVA (trade name: PVA117, manufactured by Crale Corporation) 35.0% by weight

[0045] ·White pigment

[0046] Silica (trade name: Fine seal X37B, manufactured by Tokuyama Soda Co., Ltd.)

[0047] 54.0% by weight

[0048] ・Cationic dye fixing agent (trade name: Smiraze resin 1001, manufactured by Sumitomo Chemical Co., Ltd.) 10.0% by wei...

Embodiment 2

[0058] With respect to the binder resin, white pigment, and cationic dye-fixing agent in the same ratio as the ink receiving layer of Example 1, 30.0% by weight of the total solid content in the ink receiving layer was adjusted to zinc benzoate, which was the same as that of Example 1. The same procedure was carried out to prepare an ink jet recording sheet of Example 2 of the present invention.

Embodiment 3

[0060] With respect to the binder resin, white pigment, and cationic dye-fixing agent in the same ratio as the ink receiving layer of Example 1, 20.0% by weight of the total solid content in the ink receiving layer was adjusted to zinc benzoate, the same as in Example 1 The same procedure was carried out to prepare an ink jet recording sheet of Example 3 of the present invention.

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Abstract

A superior recording sheet for an ink jet printer which sufficiently satisfies various property requirements such as light resistance of images, ozone resistance, etc., is provided. The recording sheet for an ink jet printer comprises at least an ink receiving layer and a glossiness adjusting layer on a base material, the ink receiving layer includes an organic acid metallic salt and a cationic dye fixing agent, and the glossiness adjusting layer comprises a fine particle pigment and binder resin.

Description

technical field [0001] The present invention relates to a recording sheet. More specifically, it relates to a recording sheet with high density and clarity, excellent ink absorption, light resistance, ozone resistance, indoor preservation, yellowing resistance, and water resistance, and is free from direct sunlight (sunlight). Ink-jet recording sheets capable of reducing density and color tone and absorbing ink at a high speed can fully adapt to high-speed printing in the future. Background technique [0002] Inkjet printers have been widely used in recent years due to their features such as clear recording, quiet operation, and easy colorization. In order to prevent nozzle clogging caused by ink drying, inkjet printers must use inks that are not easy to dry. As inks having such characteristics, water-soluble inks obtained by dissolving or dispersing binders, dyes, solvents, additives, etc. in water are generally used. However, the current status of characters and images f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00G03G7/00B41J2/01B41M5/50B41M5/52D21H19/44
CPCY10T428/24802B41M5/502B41M5/5218B41M5/5245D21H19/44
Inventor 辰桥史一久保田展弘土田实杉山淳
Owner TOMOEGAWA PAPER CO LTD
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