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Metallic pigment, pigment dispersion liquid, metallic pigment ink composition, and ink jet recording method

A technology of ink composition and pigment dispersion, which is applied in the field of metal pigments and pigment dispersions, can solve problems such as difficult to use, burden of necessary pressurized equipment, and limitations of printing media

Active Publication Date: 2008-03-19
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantage that the printing medium is very restrictive, especially when heat-treated
Of course, when the pressurization process is performed, there are disadvantages that the printing medium is limited, and the equipment load of the pressurization equipment is necessary (for example, refer to Patent Document 3).
In addition, metal colloids usually use noble metals (Au, Ag, Ru, Rh, Pd, Os, Ir, Pt), but in terms of cost, it is difficult to use them for decoration, decoration, advertising printing, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] 1. Manufacture of aluminum pigment dispersion

[0114] (1) A resin layer coating liquid having the following composition was formed into a uniform liquid film by spin coating on a PET film having a film thickness of 100 μm, and then dried to prepare a resin film layer.

[0115] (Resin layer coating solution)

[0116] Polyvinyl butyral resin (ェスレツクBL-10,

[0117] Sekisui Chemical Co., Ltd.) 3.0% by weight

[0118] Glycerin 2.0% by weight

[0119] IPA (isopropyl alcohol) balance

[0120] (2) Using the following apparatus, an aluminum vapor-deposited layer with a film thickness of 70 nm was formed on the above-mentioned resin layer.

[0121] Device: Co., Ltd. vacuum equipment, VE-1010 vacuum evaporation device

[0122](3) Using an ultrasonic disperser in IPA, the PET film having the laminate of the resin layer and the aluminum vapor-deposited layer formed by the above method was simultaneously peeled, miniaturized, and dispersed for 12 hours, and the cumulative time f...

Embodiment 2

[0154] The same operation as in Example 1 was carried out. However, the accumulation time of the dispersion treatment was extended from 12 hours to 18 hours to prepare ink composition 2 containing a metallic pigment. Table 1 shows the same evaluation results as in Example 1.

Embodiment 3

[0156] The same operation as in Example 1 was carried out. However, the accumulation time of the dispersion treatment was extended from 12 hours to 24 hours to prepare ink composition 3 containing a metallic pigment. Table 1 shows the same evaluation results as in Example 1.

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Abstract

This invention provides a metallic pigment, which can prepare a printed matter having metallic luster, can realize stable printing even in a printer with ink jet nozzles having a nozzle diameter of not more than 30 [mu]m, can eliminate the need to carry out heat treatment and the like, and, thus, can realize ink jet recording without undergoing a limitation on printing media (recording media), an ink composition, and an ink jet recording method. The metallic pigment is a metal foil piece having an average thickness of 30 to 100 nm, having a 50% average particle diameter of not less than 0.5 [mu]m and not more than 4.0 [mu]m, and having such a particle size distribution that the maximum particle diameter is not more than 12 [mu]m. An ink composition containing this metallic pigment and an ink jet head having a nozzle diameter of not more than 30 [mu]m are provided, and the ratio between the average particle diameter of the metallic pigment and the nozzle diameter of the ink jet head (average particle diameter / nozzle diameter) is preferably brought to not more than 0.15.

Description

technical field [0001] The present invention relates to metal pigment, pigment dispersion liquid, metal pigment ink composition and inkjet recording method. More specifically, it relates to the ability to produce printed matter with a metallic luster, stable printing even with a printer using an inkjet nozzle with a nozzle diameter of 30 μm or less, and unlimited printing media (recording media) since no heat treatment is required. A metallic pigment for inkjet recording, a pigment dispersion, a metallic pigment ink composition, and an inkjet recording method. Background technique [0002] Conventionally, pigments containing metals or alloys such as aluminum, gold, silver, and brass, printing inks containing pearl pigments, or transfer foils using adhesives or thermal fusion have been used to reproduce metallic luster on printed matter. [0003] With the development of inkjet printing technology in recent years, there has been an increasing demand for printed matter having ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41J2/01B41M5/00C09D11/322
Inventor 小柳崇中野景多郎
Owner SEIKO EPSON CORP
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