Waterbased pigment type ink-jet printing ink and preparation method and application thereof

A technology of inkjet printing and water-based pigments, which is applied in the fields of application, ink, dyeing, etc., can solve the problems of low washing fastness, insufficient dry rubbing fastness, and the lack of versatility of dye inks, so as to solve the problem of poor rubbing fastness. Poor, good storage stability, good printing fluency effect

Active Publication Date: 2011-08-10
上海英威喷墨科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Digital printing ink is an important consumable for digital printing. The performance of digital printing ink directly affects the quality of printing. At present, the ink used for fabric digital printing is mainly based on dye ink, but there are many shortcomings in the use of dye ink for fabric digital printing:( 1) Dye inks are not universal, different fabrics require different types of dye inks to meet printing requirements
In addition, pigment-based inkjet printing ink saves water and electricity because it does not require fabric pretreatment and post-washing process, the manufacturing process is simple, and the production cost can be reduced. Therefore, the advantages of pigment-based inkjet printing ink for fabric inkjet printing are obvious. Yes, but the problem that this technology has not yet solved is: no suitable fabric adhesive can be found, which leads to low washing fastness and insufficient dry rubbing fastness of inkjet printing products
At present, adding polyacrylic acid emulsion and polyurethane emulsion to the water-based pigment inkjet printing ink as a binder to improve the adhesion of pigment particles and fabrics is rare, especially the report of using polyurethane emulsion as binder is almost non-existent.
[0005] The most representative patents are US7338988 and US70301175 when polyacrylate emulsion is added to water-based pigment-based inkjet ink abroad. However, the inkjet inks in these patents are mainly aimed at the coloring of plastic materials such as PE, PVC, and PU. Dry ru

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Table 1 Formula of blue pigment-based inkjet printing ink

[0029] components

[0030] SilvaDur TM ET antibacterial agent

[0031]According to the formula in Table 1, the surfactant, polyacrylate emulsion, humectant, pH regulator, antibacterial agent and deionized water were stirred with a high-speed mixer at a speed of 2000rad / min for 60min, and the solution system was fully mixed evenly, and then Add the blue pigment paste into the solution system, and continue stirring with a high-speed mixer at a speed of 1500 rad / min for 50 minutes to make it a uniform blue ink dispersion system. Finally, the prepared blue ink dispersion system is filtered through a microporous filter membrane with a pore size of 0.2 μm to obtain a water-based pigment-based blue inkjet printing ink containing polyacrylate emulsion. The physical and chemical indicators of the blue inkjet printing ink at 25°C are: surface tension 31.28mN / m (measured by BZY-2 automatic surface t...

Embodiment 2

[0033] Table 2 Formula of red pigment-based inkjet printing ink

[0034] components

[0035] According to the formula in Table 2, the surfactant, polyacrylate emulsion, humectant, pH regulator, antibacterial agent and deionized water were stirred with a high-speed mixer at a speed of 2400rad / min for 80min, and after the solution system was fully mixed, the Add the red pigment paste into the solution system, and continue stirring with a high-speed mixer at a speed of 2000 rad / min for 30 minutes to form a uniform red ink dispersion system. Finally, the prepared red ink dispersion system is filtered through a microporous filter membrane with a pore size of 2 μm to obtain a water-based pigment-based red inkjet printing ink containing polyacrylate emulsion. The physical and chemical indicators of the red inkjet printing ink at 25°C are: surface tension 32.98mN / m (measured by BZY-2 automatic surface tensiometer), viscosity 3.08cP (measured by R / S-CC coaxial cylinder flow ...

Embodiment 3

[0037] Table 3 Formula of yellow pigment-based inkjet printing ink

[0038] components

[0039] According to the formula in Table 3, the surfactant, polyurethane emulsion, humectant, pH regulator, antibacterial agent and deionized water were stirred with a high-speed mixer at a speed of 2200 rad / min for 65 minutes. After the solution system was fully mixed, the yellow pigment Add the color paste into the solution system, and continue stirring with a high-speed mixer at a speed of 2500 rad / min for 40 minutes to make it a uniform yellow ink dispersion system. Finally, the prepared yellow ink dispersion system is filtered through a microporous membrane with a pore size of 1 μm to obtain a water-based pigment-type yellow inkjet printing ink containing polyurethane emulsion. The physical and chemical indicators of the yellow inkjet printing ink at 25°C are: surface tension 31.78mN / m (measured by BZY-2 automatic surface tensiometer), viscosity 3.12cP (measured by R / S-CC co...

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Abstract

The invention relates to waterbased pigment type ink-jet printing ink and a preparation method and application thereof. The ink comprises the following components by weight percent: 5.0-25.0% of pigment paste, 0.2-2.0% of surfactant, 2.0-15.0% of fabric adhesive, 5.0-35.0% of moisturizer, 0.5-3.0% of pH regulator, 0.1-0.5% of antibacterial agent and the balance of deionized water. The preparationmethod is as follows: mixing and stirring the components and filtering. The application method comprises the following steps: the waterbased pigment type ink-jet printing inks with four basic colors are respectively filled in the ink boxes of an ink-jet printing machine, a computer is used to print the required colors and patterns on fabric, and then the fabric is baked for fixation. The ink-jet printing ink has good storage stability and printing fluency and high washing fastness and rubbing fastness; and the preparation method and application method have simple processes and good application prospects.

Description

technical field [0001] The invention belongs to the field of inkjet printing inks, in particular to a water-based pigment inkjet printing ink and its preparation method and application. Background technique [0002] Due to the complex and lengthy operation process of traditional screen and rotary screen printing, and cannot meet the requirements of high quality, small batches, diversified patterns, and individualization, digital printing technology gets rid of the simulation of traditional printing color separation, film production, and net making. The method has the obvious advantages of convenient operation, no pollution and high return, which brings unprecedented development opportunities to the textile printing and dyeing industry. Digital inkjet printing is to input the required printing pattern into the computer in digital form, after editing and processing the computerized printing color separation and drawing, and then directly spray the printing ink onto various fab...

Claims

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Application Information

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IPC IPC(8): D06P5/30D06P1/44D06P1/52C09D11/10C09D11/322
Inventor 王夏琴冉淑燕李文彬
Owner 上海英威喷墨科技有限公司
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