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Ink composition for 3D inkjet printing, ink set and preparation method thereof

An inkjet printing and composition technology, applied in the field of printing, can solve the problems of high energy consumption and complex use of the composition, and achieve the effects of simple curing process, simple composition, excellent printing effect and operability

Active Publication Date: 2018-11-20
ZHUHAI SAILNER 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the composition needs high temperature to melt when it is used, the print head installed in the printer must be able to withstand high temperature. On the one hand, the high temperature will affect the service life of the print head, on the other hand, the energy consumption is high, and the composition It contains wax and resin materials, which are two types of materials with completely different properties. The curing process is carried out in two steps. First, the composition is not completely cured by cooling down, and then further cured by UV light. The former is after the physical process. Or is a chemical process, which makes the composition complicated to use

Method used

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  • Ink composition for 3D inkjet printing, ink set and preparation method thereof
  • Ink composition for 3D inkjet printing, ink set and preparation method thereof
  • Ink composition for 3D inkjet printing, ink set and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The ink composition of the present embodiment comprises the following components in parts by weight:

[0052]

[0053]

[0054] Preparation:

[0055] (1) Weigh 30 parts of polyester hyperbranched oligomer CN2302, 23.8 parts of monofunctional urethane acrylate CN975S, 15 parts of 1,6-hexanediol diacrylate SR238NS, 25 parts of 3,3,5-trimethyl Cyclohexane acrylate SR420, 0.3 parts of GENORAD16, 0.5g BYK-333 were placed in a glass container, stirred with a stirrer until all materials were mixed evenly, and the first mixture was generated; 1.6 parts of photoinitiator TPO, 184 2 part into the first mixture, then continue to stir until the UV photoinitiator is completely dissolved to obtain the second mixture, and finally add 1.8 parts of golden red (PR21) red pigment to the second mixture and transfer it to VFF-230 intelligent dispersion sand mill Carry out high-speed shear dispersion in the machine until the mixture is uniform to obtain the third mixture;

[0056] (2...

Embodiment 2

[0065]

[0066] Preparation:

[0067] The preparation method of the ink composition in this example is basically the same as that of Example 1, except that the degassing time under reduced pressure is adjusted to 2 hours, and finally a yellow ink composition for 3D inkjet printing is obtained.

[0068] According to the same test method as in Example 1, the performance test of the ink composition in this example was carried out, and the test results are shown in Table 1.

Embodiment 3

[0070]

[0071] Preparation:

[0072] The preparation method of the ink composition in this example is basically the same as that of Example 1, except that the degassing time under reduced pressure is adjusted to 3 hours, and finally a blue ink composition for 3D inkjet printing is obtained.

[0073] According to the same test method as in Example 1, the performance test of the ink composition in this example was carried out, and the test results are shown in Table 1.

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Abstract

Provided are a 3D ink-jet printing ink composition and ink set, and method for fabrication thereof, the ink set comprising the following components in parts by weight: 45-75 parts of acrylic oligomer, 20-45 parts of acrylic monomer, 1-9 parts of photoinitiator, 0.2-10 parts of promoter, and 0-4 parts of colorant; the acrylic oligomer is selected from one or more of polyurethane acrylate, polyester acrylate, and polyether acrylate; said ink composition has a viscosity of 25-70 cps at room temperature; the ink composition has a surface tension of 20-35 dyn at spray temperature; the ink composition has a viscosity of 9-14.5 cps at at least one spray temperature. The ink composition is simple and extends the service life of the print head; it has a simple solidification process, no VOC emissions, and is non-polluting, and there is no warpage or deformation of parts.

Description

technical field [0001] The invention relates to printing technology, in particular to an ink composition for 3D inkjet printing, an ink set and a preparation method thereof. Background technique [0002] 3D inkjet printing technology is based on the working principle of inkjet printers. Under the excitation of digital signals, the liquid (molding material) in the nozzle chamber forms droplets in an instant, and is ejected from the nozzle at a certain speed and frequency. Solidify and shape layer by layer according to the specified path, and finally get a 3D object. [0003] The molding materials used by existing 3D inkjet printers for inkjet printing can be divided into two categories: temperature curing materials and UV light curing materials. The temperature curing materials are mainly materials containing wax, and solid or semi-solid waxy materials are heated The melted and fluidized material enters the nozzle of the print head for inkjet printing. When the wax drop is s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/40C09D11/322
CPCC09D11/322C09D11/40
Inventor 王风王丽坤
Owner ZHUHAI SAILNER 3D TECH CO LTD
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