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Dye, ink, ink jet recording method, ink sheet, color toner and color filter

A technology for dyes and inks, applied in the fields of ink sheets, toners and color filters, inks, dyes, and inkjet recording methods, can solve the problem of not having the absorption characteristics of the color reproduction area, and achieve excellent storage stability and high light resistance. , the effect of excellent absorption characteristics

Active Publication Date: 2006-11-08
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is a fact that there are no colorfast dyes that have absorption characteristics capable of achieving a superior color reproduction area and are resistant to various usage conditions and environmental conditions, and therefore improvements in dyes are urgently needed

Method used

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  • Dye, ink, ink jet recording method, ink sheet, color toner and color filter
  • Dye, ink, ink jet recording method, ink sheet, color toner and color filter
  • Dye, ink, ink jet recording method, ink sheet, color toner and color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0143] As a typical example, the synthesis method of Dye 1 is described below. Each step in the synthesis examples can be performed according to known synthesis methods (see JP-A-2003-277662 and the specification of Japanese Patent Application No. 2003-286844).

[0144]

[0145] (synthesis example)

[0146] (1) 18.5g of NaHCO 3 and 185ml of H 2O was heated to 40°C, and a solution of 18.4 g of compound a in 48 ml of acetone was added thereto, followed by stirring for 1 hour. After the reaction solution was concentrated to reduce the amount of acetone, 40 g of hydrazine was added thereto, and the mixture was stirred at room temperature for 3 hours. Crystals thus precipitated were collected by filtration to obtain 14 g of compound b.

[0147] (2) 10ml of 1N NaOH was added to 10.5g of compound b, 20g of compound c and 330ml of H 2 O, and the resulting mixture was heated for 3 hours. The reaction mixture was filtered, and the filtrate was acidified with acetic acid. Cryst...

Embodiment 2

[0152] Synthesis examples of the synthetic dye 20 are described below. Dye 20 can be similarly synthesized by carrying out the synthesis method of Dye 1. The synthetic dye is in H 2 λmax in O is shown in Table 1.

[0153]

[0154] dye

Embodiment 3

[0156] Pure water (resistance value: 18 MΩ or more) was added to the following components to make 1 liter, and the resulting mixture was stirred under heating for 1 hour. Thereafter, the mixture was filtered through a 0.25 μm microfilter under reduced pressure to prepare a yellow ink solution Y-101.

[0157] (Formulation of yellow ink Y-101)

[0158] (solid component)

[0159] Dye of the invention 1 40 g / l

[0160] Proxel (produced by Zeneca) 1.5g / l

[0161] Urea 20g / l

[0162] (liquid component)

[0163] Triethylene glycol monobutyl ether (DGB) 100g / l

[0164] Glycerin (GR) 115g / l

[0165] Triethylene glycol (TEG) 100g / l

[0166] 2-pyrrolidone 35g / l

[0167] Triethanolamine (TEA) 8g / l

[0168] Surfynol STG(SW) 10g / l

[0169] Ink solution Y-102 was prepared in the same manner as that of ink solution Y-101 except that the dye was changed as shown in Table 2...

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Abstract

To provide a dye which has a good hue, which can form an image showing a high fastness under various using conditions and environmental conditions, and which is particularly suited for an ink, the dye is represents by formula (1): wherein R1 and R2 each independently represents a monovalent group, Z represents a nitrogen atom or a carbon atom to which a hydrogen atom or a monovalent group is bonded, and M represents a hydrogen atom or a cation, provided that the dye has two azo groups.

Description

technical field [0001] The present invention relates to a dye, ink, inkjet recording method, ink sheet, toner and color filter. Background technique [0002] In recent years, image recording materials are mainly materials for forming color images, and more specifically, inkjet recording materials, heat transfer recording materials, electrophotographic recording materials, transfer process silver halide photosensitive materials, Printing ink and stylus. Also, color filters for recording or reproducing color images have been used in imaging devices such as CCDs in the field of photographic equipment or LCDs or PDPs in the field of displays. In these color image recording materials or color filters, in order to display or record full-color images, trichromatic dyes (dye or pigment) based on additive color mixing or subtractive color processes are used. However, it is a fact that there are no colorfast dyes that have absorption characteristics capable of r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B33/12B41J2/01B41M5/00B41M5/26C09D11/328G02B5/20G03G9/08
Inventor 原田彻矢吹义治小泽孝立石桂一
Owner FUJIFILM CORP
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