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Ink composition and method of ink-jet recording

一种油墨组合物、化合物的技术，应用在复制/标记方法、化学仪器和方法、油墨等方向，能够解决色调改变、不好可保存性、图像质量变差等问题，达到良好可保存性、优异褪色平衡的效果

Inactive Publication Date: 2005-06-15
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, JP-A-58-74761 and JP-A-60-92369 propose an ink comprising a dye, glycerin, diethylene glycol and an ethylene oxide adduct of alcohol and JP-A-2000-265098 proposes Inks containing ethylene oxide adducts of long linear alcohols have been developed, but these inks require some improvement and have the disadvantage that the quality of the formed images deteriorates during storage
In addition, JP-A-6-88048, JP-A-8-333532, JP-A-8-333533, and US Pat. It is possible to reduce image bleed, but the ink has the disadvantage that it is still prone to clogging and has poor image storability after printing, resulting in tonal shifts
[0006] In addition, it is apparent that there may be situations where images recorded on glossy paper of photographic image quality dedicated to inkjet recording have significantly poor storability when placed on indoor walls
This phenomenon is particularly noticeable on glossy paper of photographic image quality dedicated to inkjet recording, and thus poses a big problem to the existing inkjet recording process which requires providing ideal photographic quality images as an important feature

Method used

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  • Ink composition and method of ink-jet recording
  • Ink composition and method of ink-jet recording
  • Ink composition and method of ink-jet recording

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0653] To the following components was added deionized water to make 1 liter, and the mixture was then heated to 30°C-40°C with stirring for 1 hour. Then, the solution was adjusted to pH 9 with 10 mol / l KOH, and then filtered under reduced pressure through a microfilter having an average pore diameter of 0.25 μm to prepare a light cyan ink solution.

[0654] Phthalocyanine dye (Exemplary Compound 154) 8.75g / l

[0655] Diethylene glycol 130g / l

[0656] Glycerin 150g / l

[0657] Triethylene glycol monobutyl ether 130g / L

[0658] Triethanolamine 6.0g / l

[0659] Benzotriazole 0.08g / l

[0660] PROXEL XL2 1.8g / l

[0661] Surfactant (W1-18) 10g / l

[0662] In addition, the kinds of dyes and additives were changed to prepare magenta ink, light magenta ink, cyan ink, yellow ink and black ink, and then the ink set 101 given in Table 3 was prepared therefrom.

[0663] light magenta

magenta

light cyan

cyan

yellow

black

Dyestuff(g / l)

...

Embodiment 2

[0696] 17.9 g of dye (I-3) and 24.8 g of dispersant (trade name: Emal 20C, produced by KAO Corporation) were dissolved in 13 g of high-boiling organic solvent (s-1), 22.9 g of high-boiling organic solvent (s-1) at 70°C. -2) in a mixture of 50 ml of ethyl acetate. To this solution was then added 500 ml of deionized water with stirring with a magnetic stirrer to prepare an oil-in-water coarse-grained dispersion.

[0697] Subsequently, the coarse-grained dispersion was passed through a microfluidizer (MICROFLUIDEX INC) 5 times at a pressure of 60 MPa to undergo atomization. In addition, the emulsion thus obtained was subsequently subjected to desolvation by means of a rotary evaporator until there was no odor of ethyl acetate.

[0698] Additives such as 140 g of diethylene glycol, 64 g of glycerol, 16 g of surfactant (W1-18) and urea and subsequently 900 ml of deionized water were added to the thus obtained microemulsion of the oil-soluble dye, and the emulsion was washed with 1...

Embodiment 3

[0707] To the following components was added deionized water to make 1 liter, and the mixture was then heated to 30°C-40°C with stirring for 1 hour. Then, the solution was adjusted to pH 9 with 10 mol / l KOH, and then filtered through a microfilter having an average pore diameter of 0.25 μm under reduced pressure to prepare a light cyan ink solution.

[0708] Phthalocyanine dye (Exemplary Compound 154) 8.75g / l

[0709] Diethylene glycol 130g / l

[0710] Glycerin 150g / l

[0711] Triethylene glycol monobutyl ether 130g / L

[0712] Triethanolamine 6.0g / l

[0713] Benzotriazole 0.08g / l

[0714] PROXEL XL2 1.8g / l

[0715] Surfactant (W5-4) 10g / l

[0716] In addition, the kinds of dyes and additives were changed to prepare magenta ink, light magenta ink, cyan ink, yellow ink and black ink, and then the ink set 301 given in Table 7 was prepared. The structures of the dyes denoted by the same symbols as in Example 1 are the same as those described in Example 1.

[0717] ...

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Abstract

An ink composition comprising: at least one dye having an oxidation potential more positive than 1.0 V dissolved or dispersed in an aqueous medium; and 0.05 to 50 g / l of a surfactant. The ink composition having the foregoing composition exhibits high jetting stability and can provide images having a defined color tone and excellent aging resistance and no defects in water resistance and image quality.

Description

technical field [0001] The present invention relates to an ink composition that provides images with high quality and excellent storability and has excellent ejection stability and an ink jet recording method using the ink composition. Background technique [0002] Dyes used in inks are required to have high solubility in solvents, allow high density recording and have good hue and excellent fastness to light, heat, air, water and chemicals, good fixation to image receptive materials Properties, difficult to bleed, excellent storability as ink, non-toxicity and high purity and can be obtained at low cost. But it is very difficult to find colorants that satisfy these requirements to a high degree. In particular, there has been a particularly strong need for dyes with good cyan or magenta tints and excellent fastnesses. [0003] In recent years, with the popularity of computers, inkjet printers have been widely used to print on paper, film, cloth, etc. in offices as well as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B47/20C09B47/26C09D11/00C09D11/326C09D11/328C09D11/38
CPCC09D11/30C09D11/32C09D11/40
Inventor 小川学西田伸洋立石桂一山之内淳一
Owner FUJIFILM CORP
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