Jet ink composition containing leveling agent
A technology of composition and leveling agent, which is applied in ink, household utensils, applications, etc., can solve problems such as smoothness, poor gloss, scratch resistance, burrs on the edge of printed text, poor weather resistance, and water resistance, etc., to achieve Excellent rub resistance, good color density, and improved water resistance
Active Publication Date: 2015-04-29
ZHUHAI NINESTAR MANAGEMENT CO LTD
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Problems solved by technology
However, when the amount of pigment paste or dye paste increases to a certain value, even if the amount of paste continues to increase, the OD value will no longer increase
Moreover, the solubility of the color paste is limited, when increased to a certain amount, the color paste will be separated from the ink
Although the method shown in Japanese Patent Application Laid-Open No. 8-337748 is effective in suppressing the separation of dye paste of dye ink, it is not ideal for pigment ink
Moreover, the images printed with pigment inks usually have the defects of poor smoothness, gloss and rub resistance, and the images printed with dye inks have the disadvantages of poor weather resistance and water resistance.
In addition, when printing in color, there is bleeding between different colors, and there are burrs on the edges of the printed text
Method used
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[0066] (1) Preparation of ink composition
[0067] Ink compositions were prepared according to the formulations in Tables 1-4 below. The dosage unit of each component in the table is parts by weight, and the total weight of the composition is 100 parts by weight. Mix each component according to the required amount, stir evenly, and filter. Pigment ink is filtered by GS-25 glass fiber membrane filter produced by Japan's ADVANTEC company, and dye ink is filtered by 0.22 μm membrane filter. The aqueous ink composition for inkjet recording is obtained, wherein the static surface tension of the pigment ink is 30-35mN / m, and the viscosity is 1.5-2.5cP; the static surface tension of the dye ink is 16-26mN / m, and the viscosity is 2.0-3.0cP. The pH is 7-9.
[0068] Table 1 Pigment ink composition
[0069]
[0070]
[0071]
[0072]
[0073] (2) Print image
[0074] Use the CB781A all-in-one machine manufactured by Hewlett-Packard to perform inkjet printing on A4 printi...
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Abstract
The invention relates to a jet ink composition containing a leveling agent. The composition comprises a coloring agent, a water-soluble organic solvent, deionized water and a leveling agent. The coloring agent is a pigment or a dye, the leveling agent is selected from fluorine-containing surfactant polymer BYK340, acrylic modified fluorocarbon polymer compound EFKA3500 and / or fluorocarbon modified organosiloxane EFKA3034. The image printed by use of the inventive jet ink composition containing a leveling agent has a greatly improved color density, no color bleeding, high glossiness, and no burr at character edges.
Description
technical field [0001] The present invention relates to an ink for inkjet printers, more specifically, to an aqueous inkjet ink composition, especially to an aqueous inkjet ink composition containing a leveling agent. Background technique [0002] In recent years, with the continuous development of electronic technology, inkjet printers have become more and more common in household and office affairs. Inkjet printing is a non-impact printing method, which ejects tiny ink droplets onto the printing medium according to electrical signals generated by a microcomputer. [0003] Generally speaking, inkjet printing ink contains colorants, water-soluble organic solvents and / or solvent-based organic solvents, surfactants, etc., and the colorants can be pigments or dyes. [0004] In the process of inkjet printing, to increase the OD (color density) value of the printed image, the method of increasing the amount of pigment paste or dye paste is usually used. However, when the amount...
Claims
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IPC IPC(8): C09D11/30C09D11/38
Inventor 黄治民王风杨正如
Owner ZHUHAI NINESTAR MANAGEMENT CO LTD