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Oil-based inkjet ink set and printing method

A technology of oil-based ink and ink set, applied in ink, printing, copying/marking methods, etc., can solve problems such as deformation of transparent folders, and achieve the effect of preventing print-through

Active Publication Date: 2022-03-22
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, when storing printed matter formed with images using oil-based ink in a transparent folder made of polypropylene (PP), there is a problem that the transparent folder is deformed.

Method used

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  • Oil-based inkjet ink set and printing method
  • Oil-based inkjet ink set and printing method
  • Oil-based inkjet ink set and printing method

Examples

Experimental program
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Embodiment 1

[0226] In Examples 11, 12, in the first ink, the same fatty acid esters, and other solvents as in Example 1 were used, and good results were obtained. Further, in the first ink, the amount of fatty acid ester having a side chain having a carbon number of 4 or more and a fatty acid ester having a carbon number of 20 or more has a higher amount of a surface concentration.

[0227] In Examples 13, 14, the second ink is changed to the first embodiment, and the solvent formulation is changed.

[0228] In Examples 15, 16, the male ink, yellow ink was used in the second ink, and good results were obtained. As in Example 1, it is known that cyan inks are used in the second ink from the viewpoint of the surface concentration of the synthetic black.

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Abstract

The invention relates to an oily inkjet ink kit and a printing method. One of the technical problems is to prevent the deterioration of the resin product caused by the printed matter, increase the surface density of the printed matter, and prevent print-through. The solution is an oil-based inkjet ink set comprising a first ink and a second ink, the first ink includes a coloring material and a non-aqueous solvent, and the non-aqueous solvent includes a side chain having a carbon number of 4 or more and one molecule In the fatty acid ester having 20 or more carbon atoms, the second ink contains a coloring material and a non-aqueous solvent, and the 20% distillation temperature is 300° C. or lower.

Description

Technical field [0001] The present invention relates to an oily inkjet kit and a printing method. Background technique [0002] The inkjet recording method is to eject the fluidity ink ink ink inserted from the fine nozzle, record the image in such a way that the image is relatively arranged with the nozzle, can be realized at a low noise, so it has been rapidly in recent years. universal. As the ink used in such an inkjet recording method, water is known to have aqueous ink as a main solvent, containing a high content of an ultraviolet curable ink (UV) having a polymerizable monomer as a main component, with a high content containing wax The hot melt ink (solid ink) as a main component, and a so-called nonaqueous ink containing a nonaqueous solvent as a main solvent. Non-aqueous inks can be classified as a solvent (solvent-ink) and a main solvent having a volatile organic solvent and an oily ink (oil ink) having a low-volatile or non-volatile organic solvent. The solvent ink is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/36C09D11/40B41J2/01B41M5/00
CPCC09D11/36C09D11/40B41M5/0023B41J2/01
Inventor 守永真利绘志村真一郎安藤一行杉浦光大泽信介菅原德朗
Owner RISO KAGAKU CORP
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