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Inkjet recording ink

一种喷墨记录、油墨的技术，应用在油墨、应用、家里用具等方向，能够解决丧失商品价值等问题，达到喷出性优异、透印抑制的效果

Inactive Publication Date: 2016-09-14
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the value of the product may be lost, so we started research on improvement measures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0209]

[0210] After mixing the components of the following composition, the resulting solution was stirred at normal temperature (25° C.) for 1 hour, and the resulting solution was passed through a membrane filter with a pore size of 0.22 μm to remove coarse particles, thereby preparing Ink 1 .

[0211] -Composition of Ink 1-

[0212]

[0213]

[0214] The viscosity of the prepared ink 1 was 6.5 mPa·s (25° C.), and the surface tension was 39 mN / m (25° C.).

[0215] The viscosity and the surface tension were measured using VISCOMETER TV-22 (manufactured by TOKI SANGYO CO. LTD.) and Automatic Surface Tensiometer CBVP-Z (manufactured by Kyowa Interface Science Co., LTD.), respectively.

Embodiment 2～ Embodiment 21、 comparative example 1～ comparative example 6

[0217] Examples 2 to 21, Comparative Examples 1 to 6 The blending amounts of dyes, specific organic solvents, and other organic solvents in the ink 1 of Example 1 were changed to the blending amounts shown in Tables 2 to 4 below. , except that the ink was prepared in the same manner as in Example 1. And, the viscosity and surface tension of each prepared ink were measured by the said method. The measurement results are shown in Tables 2 to 4.

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Abstract

The present invention provides an inkjet recording ink comprising a dye represented by formula (1) below having a weight-average molecular weight of 850 or less, a water-soluble organic solvent represented by general formula (2) or (3) having an SP value of 9.4 or higher and less than 9.75, and water, the content of a surfactant being less than 0.1 mass%. R1, R2: H, halogen atom, OH, COOH, C1-C6 alkyl group, C1-C6 alkoxy group, NO2, azophenyl group; -L1-Ra and the like, L1: O, CH2, C6H4, N=N, SO2 or a combination thereof;Ra:phenyl group, naphthyl group; R3: H, azophenyl group, azonaphtalene group; -L2-Rb and the like, L2: C(=O), C6H4, N=N, NH, SO2 or a combination thereof; Rb: phenyl group, naphthyl group, pyrimidyl group, or the like; M: H, Na, NH4, alkyl ammonium or the like; R: C2-C6 unsubstituted alkyl group; n = 1 to 3.

Description

technical field [0001] The present invention relates to an ink for inkjet recording. Background technique [0002] In recent years, an image forming technique using an inkjet method has been proposed for applications requiring high-definition image formation, such as photography and offset printing. Therefore, it is required that high-quality images can be formed at high speed in the inkjet method. [0003] Recently, there has been an increasing demand for higher speed image formation. For example, in a system that draws on a web at high speed, the discharge of ink and the rub resistance of the image after drawing are important. If the image has low abrasion resistance, if the roll paper on which the image is drawn is overlapped for a short time after drawing, the image may come into contact with the paper and rub against it, and the image may become blurred. As a result, the value of the product may be lost, so research on improvement measures has been started. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30B41J2/01B41M5/00C09B29/30C09B33/18C09B33/30C09B62/04C09B67/44
CPCC09D11/38C09B29/103C09B35/46C09B35/60C09B35/62C09D11/328B41J2/01C09B29/30C09B33/18C09B33/30C09B62/04
Inventor 筱原龙儿齐藤祐弘
Owner FUJIFILM CORP
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