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Application of emulsion containing monodisperse polymer emulsion particle in colorful ink for jet printing

A polymer latex, color inkjet technology, used in applications, inks, household appliances, etc., can solve problems such as environmental hazards, achieve the effects of easy control of form, avoid environmental pollution and energy waste, and simple equipment

Inactive Publication Date: 2008-06-11
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the dyes or pigments used in conventional inks generally contain chemical structures (aromatic ring structures, etc.) that absorb light in specific wavelength bands, they will have certain harmful effects on the human body and the environment.

Method used

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  • Application of emulsion containing monodisperse polymer emulsion particle in colorful ink for jet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Preparation of emulsion containing monodisperse polymer latex particles

[0031]Monomer mixture methyl methacrylate (0.5 gram), styrene (7 gram), methyl styrene (8 gram) and acrylic acid (0.5 gram), pH buffer ammonium bicarbonate (0.5 gram) and emulsifier ten A mixture of sodium dialkylbenzenesulfonate and sodium dodecylsulfonate (1:1 by weight) (3.419mg) was dispersed in water (100mL), and the resulting mixed system was 500rpm / min Stir to mix and heat to 65°C. Add 10 milliliters of ammonium persulfate (0.5 gram is dissolved in 20 milliliters of water) aqueous solution and start to react, add 5 milliliters of ammonium persulfate aqueous solution again after reacting 4.5 hours, all the other ammonium persulfate aqueous solutions add after continuing reaction 4.5 hours, The reaction was then continued for 3 hours to end. Finally, an emulsion containing monodisperse polymer latex particles with a hard core-soft shell structure with a polydispersity index less ...

Embodiment 2

[0033] Example 2: Preparation of emulsion containing monodisperse polymer latex particles

[0034] The monomer mixture vinyl acetate (0.5 g), butyl methacrylate (0.5 g), methyl styrene (21 g), acrylamide (0.6 g) and acrylic acid (0.4 g), pH buffer sodium hydrogen phosphate (0.6 g) and ammonium bicarbonate (0.6 g) and emulsifier sodium lauryl sulfate (4.920 mg) were dissolved in water (100 mL), and the resulting mixed system was stirred and mixed at a speed of 800 rpm / min , and heated to 85°C. Add 10 milliliters of initiator (obtained by dissolving potassium persulfate (0.6 gram) and ammonium persulfate (0.4 gram) in 20 milliliters of water) to start the reaction, add 5 milliliters of initiator aqueous solution after reacting for 2 hours, and the rest The aqueous initiator solution was added after continuing the reaction for 2 hours, and the reaction was then terminated after continuing for 1 hour. Finally, an emulsion containing monodisperse polymer latex particles with a ha...

Embodiment 3

[0036] Example 3: Preparation of emulsion containing monodisperse polymer latex particles

[0037] The monomer mixture isobutyl methacrylate (1.2 grams), methyl styrene (18 grams) and methacrylic acid (1.2 grams), pH buffer sodium bicarbonate (1.0 grams) and emulsifier dodecyl sulfonate Sodium bicarbonate (4.366 mg) was dissolved in water (100 mL), and the resulting mixed system was stirred and mixed at a rotation speed of 600 rpm / min, and heated to 75°C. Add 10 milliliters of potassium persulfate (0.8 gram is dissolved in 20 milliliters of water) aqueous solution and start to react, react 3.5 hours and then add 5 milliliters of potassium persulfate aqueous solution, all the other potassium persulfate aqueous solutions add after continuing reaction 3 hours, The reaction was then terminated after 2 hours. Finally, an emulsion of monodisperse polymer latex particles with a hard core-soft shell structure with a polydispersity index less than or equal to 0.005, a particle size ra...

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Abstract

The invention relates to color ink-jet printing ink, in particular to emulsion containing monodisperse polymer emulsion particles as the color ink-jet ink. The emulsion including the monodisperse polymer emulsion particles is directly taken as the color ink-jet printing ink to be used; the monodisperse polymer emulsion particle adopts the monodisperse polymer emulsion particle with the particle diameter range being from 170 to 300 nm, the polydispersity index being polydispersity index, and with hard core-soft shell structure, and the concentration range of the monodisperse polymer emulsion particles with the hard core-soft shell structure included in the emulsion is 10 to 20 wt percent. According to the different sizes (from large to small) of the particle diameters of the used emulsion particles, the printed images obtained by the invention present various colors from red to purple. The color generation of the invention is characterized in that other pigments or dyes generating color are not required to be added into the emulsion, the invention is only decided through the particle diameter of the monodisperse polymer emulsion particle, and therefore preventing a series of environmental pollution and energy waste being caused by the regular color generated through specific dyes or the pigmens.

Description

technical field [0001] The invention relates to a color inkjet printing ink, in particular to an emulsion containing monodisperse polymer latex particles directly used as a color inkjet ink. Background technique [0002] Inkjet printing is the process of spraying ink droplets (monochrome or color) onto a substrate (paper, plastic, textile, metal, etc.) according to a set program to form an image. The development of digital imaging technology has promoted the development and application of inkjet printing technology, especially the progress of color inkjet printing technology, which has made inkjet printers become the fastest growing and most widely used important IT products among all printers. Become an indispensable accessory for computers and digital cameras. [0003] The performance of inkjet printing ink is a very important component that affects the final application performance of inkjet technology. As the demand for inkjet printing increases, the production of high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C08F212/08C08F220/10C08F2/24C09D11/40
Inventor 王京霞李英锋崔丽影宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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