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Nonaqueous ink

A non-aqueous, solvent-based technology, applied in the direction of ink, printing, copying/marking methods, etc., can solve problems such as high viscosity and increased power consumption, and achieve the effect of suppressing power consumption and suppressing deformation of attached or transparent folders

Active Publication Date: 2015-04-08
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these non-aqueous inks have a high viscosity and need to be lowered by heating or cooling for normal ejection from the inkjet head, which tends to increase power consumption

Method used

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  • Nonaqueous ink
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Examples

Experimental program
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Effect test

Embodiment

[0058] After the raw materials were premixed in the formulations shown in Table 1 and Table 2, they were stirred at a frequency of 60 Hz for 120 minutes with a rocking mill base (manufactured by Seiwa Technology). After stirring, the nonaqueous inks of Examples 1 to 7 and Comparative Examples 1 to 7 were obtained by filtration using a filter membrane with a pore size of 3 μm.

[0059] The acquisition units of raw materials are as follows.

[0060] Carbon black MA8 (color material): manufactured by Mitsubishi Chemical Corporation

[0061] Solsperse 13940 (pigment dispersant): manufactured by Lubrizol

[0062] High-purity liquid paraffin P60 (n-alkane solvent): manufactured by Matsumura Oil Co., Ltd.

[0063] High-purity liquid paraffin P100 (normal paraffin solvent): Matsumura Oil Co., Ltd.

[0064] High-purity liquid paraffin P120 (n-alkane solvent): manufactured by Matsumura Oil Co., Ltd.

[0065] High-purity liquid paraffin P230 (n-alkane solvent): manufactured by Matsum...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a non-aqueous ink for inkjet, which can be jetted in a power-saving state while preventing a PPC printed matter from being stuck to a toner resin and preventing a sheet protector from being deformed.SOLUTION: The non-aqueous ink comprises at least a color material and an organic solvent. The organic solvent contains: 30 mass% or more of a solvent (A), namely, a normal paraffin solvent based on the total mass of the solvents, wherein the solvent (A) has a 50% distillation temperature of 320 to 480°C; and 30 mass% or more in total of a solvent (B), namely, a naphthenic solvent and / or isoparaffinic solvent, wherein the solvent (B) has a 50% distillation temperature of 200 to 320°C. The total mass of the solvents (A) and (B) is 80 mass% based on the total mass of the organic solvent. It is preferable that the viscosity of the ink is 5 to 30 mPas.

Description

technical field [0001] The present invention relates to non-aqueous inks suitable for inkjet printers, and more particularly to non-aqueous inks that hardly cause adhesion of toner resin and deformation of transparent folders to printed matter printed by PPC (polypropylene carbonate) copiers or laser printers, Non-aqueous ink that suppresses power consumption for normal ejection. Background technique [0002] In recent years, inkjet printers have been increasingly required to perform full-color printing at high speed without being restricted by recording media. In response to this demand, inkjet printers using non-aqueous inks that are less prone to curling and wrinkling have become widespread. [0003] Although non-aqueous ink is characterized by less curling and wrinkling as described above, printed matter using non-aqueous ink may adhere to the toner resin of PPC printed matter, deforming the transparent file. [0004] It is known that the sticking problem of toner resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/36B41J2/01B41M5/00C09D11/00C09D11/322C09D11/326C09D11/38
Inventor 部田尚亨远藤敏弘
Owner RISO KAGAKU CORP
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