Inkjet ink

一种喷墨油墨、颜料的技术，应用在油墨、家里用具、应用等方向，能够解决颜料粒子沉降、文字、图案稳定性担心、浓度变化油墨喷出稳定性担心等问题，达到防止颜料粒子沉降的效果

Active Publication Date: 2021-05-04
KISHU GIKEN KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of inkjet inks using dyes as colorants (colorants), moisture resistance and light resistance are poor, and there is concern about the stability of printed characters and patterns.
[0004] On the other hand, when a pigment is used as a coloring material, compared with a dye, the moisture resistance and light resistance are improved, but the pigment particle sedimentation occurs during storage of the ink, which affects the density change of the printed characters and patterns and the color of the ink. Concerns about ejection stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] 130 parts by weight of the above dispersion, 69.5 parts by weight of ethanol, and 0.5 parts by weight of decaglyceryl monostearate (HLB9, hereinafter referred to as "ester A") as a surface conditioner were placed in a glass beaker. , and stirred and mixed with a stainless steel scraper to obtain an inkjet ink sample.

Embodiment 2

[0088] An inkjet ink sample was obtained in the same manner as in Example 1 except that the above-mentioned dispersion 2 was used instead of the above-mentioned dispersion 1.

Embodiment 3

[0090] According to the ratio of 130 parts by weight of the above-mentioned dispersion and 70 parts by weight of ethanol, the inkjet ink samples were obtained.

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PUM

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Abstract

The purpose of the present invention is to provide: an inkjet ink which has excellent moisture resistance and light resistance after printing, in which pigment particles do not easily settle, and which can maintain a stable printing state over a long period of time without being circulated or stirred; and a method for producing the inkjet ink. An inkjet ink which is formed from components including at least a pigment containing iron oxide, a dispersant, and a dispersion medium, each component satisfying a pharmaceutical additive standard, and in which all of the components are non-aqueous materials, and each component is dispersed and mixed to obtain a pre-dispersion, and the pre-dispersion is dispersed and mixed with the pigment containing iron oxide to obtain supernatant. By using the supernatant obtained by centrifuging the pre-dispersion, iron trioxide or yellow iron trioxide having an average dispersion particle diameter (D50) of 50-200 nm and a maximum dispersion particle diameter (D99) of less than 400 nm is dispersed as a pigment.

Description

technical field [0001] The present invention relates to an inkjet ink used, for example, when directly printing characters and patterns on a tablet using an inkjet printing device, and a method for producing the inkjet ink. Background technique [0002] Conventionally, inkjet inks using dyes as coloring agents have often been used as inks used for direct printing of characters and patterns on tablets. [0003] However, in the case of an inkjet ink using a dye as a coloring material (colorant), moisture resistance and light resistance are poor, and there is concern about the stability of printed characters and patterns. [0004] On the other hand, when a pigment is used as a coloring material, compared with a dye, the moisture resistance and light resistance are improved, but the pigment particle sedimentation occurs during storage of the ink, which affects the density change of the printed characters and patterns and the color of the ink. There is concern about the ejection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/322C09D11/36C09D11/38
CPCC09D11/322C09D11/36C09D11/38
Inventor 浅尾启辅
Owner KISHU GIKEN KOGYO CO LTD
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