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Ink for inkjet, ink set for inkjet, and inkjet recording method

An ink and water miscibility technology, applied in the direction of ink, application, household appliances, etc., can solve the problems of inkjet printing density reduction, easy fading, fading, etc.

Inactive Publication Date: 2009-09-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors know that water-soluble dyes alone cannot achieve satisfactory fastness
[0012] In addition, the inventors further studied aqueous inkjet inks containing dyes, and found that they have a problem in that the low-density yellow parts tend to fade in aging tests of gray continuous tone images and portraits, thereby deteriorating the color balance of images
[0013] On the other hand, when the solvent remaining in the ink is not sufficiently removed, it causes a problem that inkjet printing density decreases during storage (for example, yellow parts may look faded, or black parts may change)

Method used

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  • Ink for inkjet, ink set for inkjet, and inkjet recording method
  • Ink for inkjet, ink set for inkjet, and inkjet recording method
  • Ink for inkjet, ink set for inkjet, and inkjet recording method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0683] Ultrapure water (with a resistance of at least 18 MΩ) was added to the components shown below to make a volume of 1 liter, followed by stirring under heating at 30 to 40°C for 1 hour. Next, the resulting mixture was filtered under reduced pressure through a microfilter with an average pore size of 0.25 μm. Inks of different colors were thus prepared.

[0684] [Light Cyan Ink Formula, LC-101]

[0685] (solid component)

[0686] Cyan dye (C-1) 20g / liter

[0687] Urea (UR) 15g / liter

[0688] Benzotriazole (BTZ) 0.08g / L

[0689] Proxel XL2 (PXL) 3.5g / liter

[0690] (liquid component)

[0691] Triethylene glycol (TEG) 110g / liter

[0692] Glycerin (GR) 130g / L

[0693] Triethylene glycol monobutyl ether (TGB) 110g / liter

[0694] 2-Pyrrolidone (PRD) 60g / L

[0695] Triethanolamine (TEA) 7g / L

[0696] Surfynol STG (SW) 10g / L

[0697] [Cyan Ink Recipe, C-101]

[0698] (solid component)

[0699] Cyan dye (C-1) 60g / liter

[0700] Urea (UR) 30g / liter

[0701] Benzotri...

Embodiment 2

[0791] Ultrapure water (with a resistance of at least 18 MΩ) was added to the components shown below to make a volume of 1 liter, followed by stirring under heating at 30 to 40°C for 1 hour. Next, the resulting mixture was filtered under reduced pressure through a microfilter with an average pore size of 0.25 μm. Inks of different colors were thus prepared.

[0792] [Photo Cyan Ink Recipe, LC-201]

[0793] (solid component)

[0794] Cyan dye (C-1) 10g / liter

[0795] Urea (UR) 15g / liter

[0796] Benzotriazole (BTZ) 0.08g / L

[0797] Proxel XL2 (PXL) 3.5g / liter

[0798] (liquid component)

[0799] Triethylene glycol (TEG) 50g / liter

[0800] Glycerin (GR) 100g / L

[0801] Triethylene glycol monobutyl ether (TGB) 60g / liter

[0802] 1,5-pentanediol (PTD) 40g / liter

[0803] Isopropanol (IPA) 20g / liter

[0804] Triethanolamine (TEA) 7g / L

[0805] Surfynol STG (SW) 10g / L

[0806] [Cyan Ink Recipe, C-201]

[0807] (solid component)

[0808] Cyan dye (C-1) 30g / liter

[080...

Embodiment 3

[0886] Ultrapure water (with a resistance of at least 18 MΩ) was added to the components shown below to make a volume of 1 liter, followed by stirring under heating at 30 to 40°C for 1 hour. Next, the resulting mixture was filtered under reduced pressure through a microfilter with an average pore size of 0.25 μm. Inks of different colors were thus prepared.

[0887] [Light Cyan Ink Recipe]

[0888] (solid component)

[0889] Cyan dye (C-1) 20g / liter

[0890] Urea (UR) 15g / liter

[0891] Benzotriazole (BTZ) 0.08g / L

[0892] Proxel XL2 (PXL) 3.5g / liter

[0893] (liquid component)

[0894] Triethylene glycol (TEG) 110g / liter

[0895] Glycerin (GR) 130g / L

[0896] Triethylene glycol monobutyl ether (TGB) 110g / liter

[0897] 2-Pyrrolidone (PRD) 60g / L

[0898] Triethanolamine (TEA) 7g / L

[0899] Surfynol STG (SW) 10g / L

[0900] [Cyan Ink Recipe]

[0901] (solid component)

[0902] Cyan dye (C-1) 60g / liter

[0903] Urea (UR) 30g / liter

[0904] Benzotriazole (BTZ) 0.08g / ...

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Abstract

An ink for inkjet comprising: a dye; and water and / or a water-miscible organic solvent, wherein the dye comprises a dye compound having at least one heterocyclic structure, and the ink further comprises, as an additive, at least one compound capable of chemically interacting with the dye compound.

Description

technical field [0001] The present invention relates to an inkjet ink, an inkjet ink set, and an inkjet recording method. Background technique [0002] In recent years, with the spread of computers, inkjet printers have been widely used not only in offices but also in homes to print on paper, film, fabric, and the like. [0003] Inkjet recording methods include systems in which ink droplets are ejected by applying pressure to ink droplets using a piezoelectric device, systems in which ink droplets are ejected by heating and bubbling, systems using ultrasonic waves, and suction and ejection by electrostatic force. Ink droplet system. As for the ink composition used in these inkjet recordings, usable are water-based inks, oil-based inks and solid (hot-melt) inks. Among these inks, water-based inks are mainly used in consideration of manufacturing, handleability, odor, and safety. [0004] Colorants used in such inkjet recording inks must meet the following requirements: goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/00C09D11/30C09D11/328
Inventor 田口敏树小泽孝
Owner FUJIFILM CORP
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