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Ink composition, method of ink-jet recording, and print
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An ink composition, inkjet recording technology, applied in the direction of ink, copying/marking method, printing, etc., can solve the problems of no evaluation of ozone resistance, image turning green, blackening, etc.
Inactive Publication Date: 2007-10-03
SEIKO EPSON CORP
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However, the ozone resistance of this ink composition has not been evaluated. In addition, in the molecules of the components used, there are hydroxyl groups and amine groups, so there are nitrogen oxides (NO x Gas) causes the image to turn green or black
Method used
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preparation example Construction
[0074] The preparation method of the ink composition of the present invention is to fully mix and dissolve each component, pressurize and filter through a membrane filter with a pore size of 0.8 μm, and then use a vacuum pump to conduct air extraction to prepare.
[0075] The present invention can provide an ink cartridge comprising at least the aforementioned ink composition. By using the ink cartridge of the present invention, the transportation of the ink can be easily performed, and the operation can be simplified. The ink can improve the indoor storage (air resistance) of the formed image, and effectively prevent the early change and fading of the image.
[0076] Next, the recording method of the present invention using the above-mentioned ink composition will be described. The recording method of the present invention is particularly suitable for the inkjet recording method. In this recording method, the ink composition is discharged from the micropores in the form of dro...
Embodiment 1～8 and comparative example 1～6
[0082] The components were mixed and dissolved according to the mixing ratio shown in Table 1, and filtered through a membrane filter with a pore size of 1 μm under pressure to prepare the ink compositions of Examples 1-8 and Comparative Examples 1-6.
[0083] Example
[0084] *1: A substance having the absorption wavelength described in Fig. 1 is used
[0085] *2: Manufactured by Nissin Chemical Co., Ltd.
[0086] *3: Made by Avecia Ltd.
[0087] In addition, each component of the ink composition shown in Table 1 represents each weight % with respect to the total weight of an ink composition, and the balance is water.
[0088] The ink compositions described in the above Examples 1 to 8 and Comparative Examples 1 to 6 were filled in a dedicated ink cartridge (cyan chamber) of an inkjet printer EM930C (manufactured by Seiko Epson Co., Ltd.) used, and printed on an inkjet dedicated recording medium ( Printing was performed on PM photographic paper: manufactured by ...
Embodiment 9～13 and comparative example 7～9
[0123] According to the mixing ratio shown in Table 3, each component was mixed and dissolved, and filtered through a membrane filter with a pore size of 1 μm under pressure to prepare the ink compositions of Examples 9-13 and Comparative Examples 7-9.
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Abstract
An ink composition which contains a metalphthalocyanine type cyan dye and can give an image having improved indoor storage stability (gas resistance). The ink composition comprises water, a metalphthalocyanine type cyan dye, and a sulfo-containing aromatic compound and / or a salt thereof which each is represented by the following general formula (1) and / or (2). Also provided are: a method of ink-jet recording comprising ejecting droplets of an ink composition and adhering the droplets to a recording medium to conduct recording, wherein the ink composition to be used is the ink composition described above; and a print characterized by being obtained by recording with that ink composition. (Chemical formula 1) (In the formula, M<1> represents a counter ion as a component of the salt; X is an integer of 1 to 3; and R<1> and R<2> may be the same or different and each represents hydrogen, C1-6 alkyl, or C1-6 alkoxy.) (Chemical formula 2) (In the formula, M<2> represents a counter ion as a component of the salt; Y is an integer of 1 to 4; and R<3> and R<4> may be the same or different and each represents hydrogen, C1-6 alkyl, or C1-6 alkoxy.
Description
technical field [0001] The present invention relates to an ink composition capable of improving the indoor preservation (air resistance) of an image formed, and more specifically, to an ink composition containing a metalphthalocyanine cyan dye that can effectively prevent image change and fading . Background technique [0002] Currently, ink compositions containing metal phthalocyanine-based cyan dyes are widely used as ink compositions for developing images such as excellent cyan colors. Recently, the application of forming an image by using an ink composition for developing such an image in combination with one or two or more ink compositions for developing other colors, and combining the resulting multi-color The composed image (color image) is displayed indoors or the like. [0003] However, in ink compositions using such metal phthalocyanine cyan dyes, due to the resistance of metal phthalocyanine cyan dyes to oxidizing gases such as ozone, nitrogen oxides, and sulfu...
Claims
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Application Information
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