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

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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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