Black ink composition, ink set containing the same, and ink jet recording method

一种组合物、墨水的技术，应用在复制/标记方法、油墨、其他偶合染料等方向，能够解决透明性损失、不能实现抑制擦金现象抗臭氧性、图像光密度降低等问题，达到改善渗色的效果

Inactive Publication Date: 2007-07-11
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the light is reflected and scattered when the gold rubbing phenomenon occurs, not only the optical density of the image is reduced, but also the color tone of the recorded image is greatly different from the required tone, and the transparency is lost, so it is necessary to suppress the gold rubbing phenomenon and Improved ozone resistance in harmony with
[0013] As a method for improving the rubbing phenomenon, JP-A-6-25575 and JP-A-8-337745 disclose a method of using urea derivatives and titanium compounds, but this method is still for improving the rubbing phenomenon, and cannot Achieving a balance between gold rubbing suppression and improved ozone resistance
[0014] In addition, as a method of improving gas resistance (ozone resistance), for example, JP-A-2003-138185 discloses a method of adding a specific compound to improve gas resistance (ozone resistance), but this method is not effective for improving gas resistance ( Ozone resistance) is not enough

Method used

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  • Black ink composition, ink set containing the same, and ink jet recording method
  • Black ink composition, ink set containing the same, and ink jet recording method
  • Black ink composition, ink set containing the same, and ink jet recording method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0318] The preparation method of the ink composition is disclosed in JP-A-5-295312, JP-A-7-97541 and JP-A-7-82515 outside the above-mentioned patent documents, and these methods can be used to prepare the ink composition of the present invention. ink composition.

[0319] In the case of using the short-wave dye S and the long-wave dye L of the present invention, other dyes may be used in combination in the ink composition of the present invention. When two or more dyes are used in combination, in 100 parts by weight of the ink composition, the total amount of dye content is preferably 0.1 to 30 parts by weight, more preferably 0.2 to 20 parts by weight, still more preferably 0.5 to 15 parts by weight share.

[0320] Ink set:

[0321] The ink composition of the present invention can be used to form not only monochromatic images but also full-color images. For forming full-color images, in addition to the ink composition of the present invention, a magenta tone ink composit...

Embodiment 1

[0332] Preparation of ink composition :

[0333] The components of the ink composition shown in Table 1 below were stirred and dissolved under heating at 30˜40° C. for 1 hour. Subsequently, under reduced pressure, the composition was filtered through a microfilter having an average pore diameter of 0.25 μm, whereby each ink composition was obtained.

[0334] Table 1 (Unit: g / L)

[0335] ink composition

[0336]

[0337] Compound A

[0338]

[0339] Compound B

[0340]

[0341] Compound C

[0342]

[0343] Inkjet recording:

[0344] The above-mentioned black ink composition was loaded into a black ink cartridge of an inkjet printer PM970C manufactured by Epson Corporation, and a genuine cartridge was used as the other ink composition for printing with the printer.

[0345] Evaluation of image quality:

[0346] At 30°C and 80% RH, images of black lines in solid yellow, magenta and cyan were printed on inkjet paper, ie, on photo glossy paper "Kas...

Embodiment 2

[0363] Preparation of the ink composition:

[0364] Each ink composition was prepared in the same manner as in Example 1 using the compositions shown in Table 4 below.

[0365] Table 4 (Unit: g / L)

[0366] ink composition

BK-07

this invention

BK-08

this invention

BK-09

this invention

BK-10

this invention

BK-11

this invention

BK-12

Compare

dye

BL-1

60.0

60.0

60.0

60.0

60.0

60.0

BS-1

15.0

15.0

15.0

15.0

-

15.0

BS-2

-

-

-

-

15.0

-

water miscible organic

solvent

Glycerin

90

90

90

90

90

90

ethylene glycol

110

110

110

110

110

110

Isopropanol

30

30

30

30

30

30

p...

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PUM

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Abstract

A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives are selected from the group consisting of a bronzing inhibitor and an ozone resisting improver.

Description

technical field [0001] The present invention relates to a black ink composition (preferably, an image-forming black ink composition (preferably, an inkjet ink composition)) containing an azo dye having a special structure and properties, and the use of the black ink composition In particular, it relates to a recording method suitable for inkjet recording. Background technique [0002] The inkjet recording method has been rapidly developed and even now popularized because of its low material cost, high-speed recording, low noise during recording, and ease of color recording. [0003] The inkjet recording method includes a continuous system that continuously ejects ink droplets and a responsive system that ejects ink droplets according to an image data signal, and the ejection system includes a system that ejects ink droplets using pressure from a piezoelectric element, heating to bubble ink to Systems that eject ink droplets, systems that use ultrasonic waves, and systems th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41M5/00B41J2/01C09B33/28C09D11/30
CPCC09D11/38C09D11/40C09D11/32B41M5/00
Inventor 小川学
Owner FUJIFILM CORP
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