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Image recording medium

A technology of image recording and medium, applied in the direction of copying/marking method, coating, printing, etc., which can solve the problems of obvious occurrence, staining of printing parts, etc.

Inactive Publication Date: 2004-07-14
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when printing with pigmented ink, smearing of the printed part will occur significantly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] The carrier used in this example is a porous membrane containing amorphous silicon dioxide with a thickness of 350 micrometers, a porosity of 65% by volume, and a pore diameter of 0.01-1 micrometer. The porous membrane is Teslin(R) SP1400 from PPG Industries.

[0089] On one surface of the support, a coating having the following composition was applied with a wire bar coater, dried to form an ink-receiving layer, and a recording medium of this example was obtained. The applied layer was dried at 100° C. for 3 minutes. The thickness of the ink receiving layer was 17 microns.

[0090]

[0091] - Adhesive: PATERCOL® IJ-170 100 parts by weight

[0092] - Coagulant: NEOFIX® IJ-150 13 parts by weight

[0093] PATERCOL(R) IJ-170 is a coating composition comprising a water dispersible cationically modified polyurethane and about 50% by weight silica particles, commercially available from DAINIPPON INK AND CHEMICALS INC. NEOFIX(R) IJ-150 is a coating composition containing...

Embodiment 2

[0096] This embodiment relates to an ink receiving layer having a partial structure of an upper layer and a base layer.

[0097] First, a paint for a base layer was prepared in the same manner as in Example 1, and the base layer was formed on a carrier. Then, on the surface of this base layer, a paint for an upper layer containing a coagulant is applied and dried to form an ink receiving layer.

[0098] The coagulant used in this example is a cationic polymer with quaternary ammonium salt groups, commercially available under the trade name NEOFIX® IJ-450 (a coating containing 60% by weight of cationic polymer, which is diluted to cationic polymerization used after a concentration of 3% by weight). The coating for the top layer was applied using a wire bar coater, followed by drying at 100°C for 3 minutes. The total thickness of the ink receiving layer was 18 microns.

Embodiment 3

[0100] The recording medium of this embodiment is manufactured in the same manner as in Example 2, except that the following substances are used instead as the coagulant in the upper layer:

[0101] WS 535 (cationic polyamide resin, purchased from NIPPON PMC Co., Ltd.), WS 535 is a coating composition containing 35% by weight of a cationic polymer, and the concentration of the cationic polymer in this coating for the upper layer is 5 weight%.

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PUM

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Abstract

Provided is an image-recording medium, which can form a high quality image thereon without yellowing (the shift of color tone) or the blotting of the ink with both the dye ink and the pigment ink. An image-recording medium having a support having breathing micropores, the surfaces and the micropores of which are made hydrophilic, and an ink-receptive layer which is provided on the surface of the support and comprises a binder and a coagulant, characterized in that the ink-receptive layer contains a cationic organic oligomer having a cationic functional group in the molecule, or a cationic polymer having a cationic functional group in the molecule as a coagulant.

Description

field of invention [0001] The present invention relates to an image recording medium on which an ink image is recorded by a printing method such as an inkjet printing method. Specifically, the present invention relates to an image recording medium that is applicable to both pigment inks and dye inks and capable of recording high-quality images. Background of the invention [0002] There is known an image recording medium comprising a support having air-permeable micropores, that is, a porous support, usable as an image recording medium such as inkjet printing paper, the back surface of the support and the pores being hydrophilic. Such image recording media are disclosed in US-A-560750, WO99 / 03685 and WO01 / 10650. [0003] For example, WO99 / 03685 discloses an image recording medium having a surfactant and a polyvalent metal salt contained in pores of a porous film as a support. Since the surfactant makes the inner walls of the micropores hydrophilic, the multivalent metal sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M5/00B41M5/50B41M5/52
CPCB41M5/5245B41M5/506B41M5/508B41M5/00
Inventor 武田康之
Owner 3M INNOVATIVE PROPERTIES CO