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Recording medium

A technology for recording media, parts by mass, applied in the direction of copying/marking methods, coating, printing, etc., to achieve the effect of preventing cracks

Inactive Publication Date: 2013-10-23
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In Japanese Patent Laid-Open No. 2004-262232, although fumed silica is used, a bronze phenomenon (bronze phenomenon) occurs in the resulting image

Method used

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  • Recording medium
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] The present invention will now be described more specifically by way of Reference Examples, Examples, and Comparative Examples, but the present invention is not limited within the scope of the present invention to the following Examples. In the following examples, unless otherwise specified, the term "part" is based on mass.

reference example 1

[0069] production of supports

[0070] The support was produced under the following conditions. A paper stock of the following composition was prepared with water so as to have a solid content of 3% by mass.

[0071] Paper composition:

[0072] pulp 100 parts

[0073] (80 parts hardwood bleached kraft pulp (LBKP) with 450 mL CSF freeness (Canadian Standard Freeness) and 20 parts softwood bleached kraft pulp (NBKP) with 480 mL CSF freeness)

[0074] Cationic starch 0.60 parts

[0075] 10 parts of heavy calcium carbonate

[0076] Light calcium carbonate 15 parts

[0077] Alkyl ketene dimer 0.10 parts

[0078] Cationic polyacrylamide 0.03 parts

[0079] The resulting paper stock was formed into paper with a fourdrinier paper machine, and the paper was subjected to three-stage wet pressing, followed by drying with a multi-drum dryer. The resulting paper was oxidized starch aqueous solution at 1.0 g / m using a sizing press 2 The coating amount is dipped and dried, and the...

Embodiment 1 to 3

[0092] Except that propylene glycol as diol is based on 100 parts of fumed silica solid content contained in fumed silica sol A in terms of solid content, respectively 2.0 parts, 10.0 parts and 20.0 parts, the amount is further compared with that in Reference Example 1. The recording media of Examples 1 to 3 were produced as in Reference Example 1 except that the fumed silica sol A in "Preparation of Coating Liquid 1 for Ink Receiving Layer" was mixed.

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Abstract

A recording medium includes a base, a second ink-receiving layer, and a first ink-receiving layer in this order. The first ink-receiving layer contains gas-phase method silica, a binder, a cationic polymer having a sulfonyl group, and glycol. The second ink-receiving layer contains gas-phase method silica and a binder and (1) does not contain any cationic polymer having a sulfonyl group or (2) contains a cationic polymer having a sulfonyl group in an amount not higher than 0.1 parts by mass based on 100 parts by mass of the gas-phase method silica.

Description

technical field [0001] The present invention relates to recording media. Background technique [0002] Silica can form a porous structure exhibiting high ink absorption, and thus is suitable as an inorganic particle used in an ink-receiving layer of a recording medium. In general, silica can be roughly classified into a wet method and a dry method (gas phase method) based on a production method. In particular, silica produced by a dry method (gas-phase method) (hereinafter also referred to as “fumed silica”) has a particularly large specific surface area, and thus exhibits particularly high ink absorption. In addition, the silica has a low refractive index, thus making the transparency of the ink-receiving layer high to obtain good color development of an image. [0003] Japanese Patent Laid-Open No. 2001-341418 discloses a method of enhancing the ozone resistance of an image by a recording medium having an ink-receiving layer containing the fumed silica. This patent docu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/52
CPCC04B41/52B41M5/5218B41M5/5254B41M5/52B41M5/502C08F222/1006B41M5/506C09K2211/1022
Inventor 野口哲朗加茂久男小栗勲汤本真也
Owner CANON KK