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Non-aqueous ink and method of producing same

A manufacturing method, non-aqueous technology, applied in the direction of copying/marking method, ink, printing, etc., which can solve the problems of ink repellency reduction, printing density reduction, etc.

Active Publication Date: 2013-03-06
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Document 1, there is no study on the decline in ink repellency due to cleaning.
In addition, when the ink contains long-chain polyamides and polar esters, the penetration of the ink into the paper is promoted, and sometimes the printing density will be reduced.

Method used

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  • Non-aqueous ink and method of producing same
  • Non-aqueous ink and method of producing same
  • Non-aqueous ink and method of producing same

Examples

Experimental program
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Embodiment

[0063] The present invention is described in detail below through examples, but the present invention is not limited by these examples.

[0064]

[0065] Inks were prepared according to the formulations shown in Table 1 and Table 2. According to the proportions shown in Table 1 and Table 2, each component was premixed, and 35 g of the mixed solution was put into a glass container, and 100 g of zirconia beads (diameter 0.5 mm) were put into it, and a rocking mill (Seiwa Giken Co., Ltd. .manufacturing RMO5S type), and dispersed at a frequency of 65 Hz for 2 hours to prepare an ink.

[0066] The components shown in Table 1 and Table 2 are as follows. In addition, the details of the carbon black shown in Table 1 and Table 2 are shown in Table 3.

[0067] Solsperse 11200: "Solsperse 11200" manufactured by Lubrizol Japan Ltd.

[0068] Methyl oleate: high-grade fatty acid ester solvent, Exceparl "M-OL" manufactured by Kao Corporation

[0069] Isomyristyl alcohol: Higher alcohol...

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Abstract

The invention provides non-aqueous ink for a nozzle plate which has excellent wiping durability and storage stability and high printing concentration and a method of producing same. The non-aqueous ink comprising a carbon black and a non-aqueous solvent is provided, wherein the carbon black comprises: a carbon black (A) having a primary particle size of at least 18 nm but less than 30 nm, a DBP absorption of at least 80 cm3 / 100 g but not more than 130 cm3 / 100 g and a pH of at least 6.0 but not more than 9.0, and a carbon black (B) having a primary particle size of at least 30 nm but not more than 50 nm, a DBP absorption of at least 40 cm3 / 100 g but less than 80 cm3 / 100 g and a pH of at least 6.0 but not more than 9.0.

Description

technical field [0001] The present invention relates to a non-aqueous ink, a printing method using the same, and a manufacturing method thereof. Background technique [0002] An inkjet recording system is a printing system that ejects highly fluid liquid ink from fine nozzles and adheres it to a recording medium such as paper to print. This system is a relatively inexpensive device that can print high-resolution, high-quality images at high speed and with low noise, and has recently become popular rapidly. [0003] The coloring material of the ink is roughly classified into a coloring material using a pigment and a coloring material using a dye. Among them, inks using pigments as colorants tend to increase due to their excellent light fastness, weather resistance, and water resistance required for high image quality. [0004] From the perspective of solvents, inks are roughly divided into water-based inks and non-aqueous inks. Non-aqueous inks that do not use water as an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02B41J2/01B41M5/00C09D11/00C09D11/322C09D11/324C09D11/326C09D11/38
CPCB41J2/015C09D11/36C09D11/324C09D11/02B41J2/2107C09D11/32
Inventor 清水麻奈美渡边祥史
Owner RISO KAGAKU CORP
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