UV-LED cured inkjet ink and preparation method thereof

A UV-LED and inkjet ink technology, which can be used in ink, household utensils, applications, etc., can solve the problems of narrow wavelength range, low power and irradiation, and single wavelength peak, and achieve moderate hardness and broad development prospects. good fluency

Pending Publication Date: 2020-06-23
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some differences from the mercury lamp. First, the wavelength peak emitted by the UV-LED light source is single. The wavelength of the commonly used UV-LED light source is 395nm, and the wavelength range is narrow. Compared with the mercury lamp, the power and radiation are lower. photoinitiation systems have different requirements

Method used

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  • UV-LED cured inkjet ink and preparation method thereof
  • UV-LED cured inkjet ink and preparation method thereof
  • UV-LED cured inkjet ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0078] 1. Detection method:

[0079] (1) Particle size: Dilute the ink or color paste with a solvent 500-2000 times according to the pigment concentration, and use a laser particle size analyzer to measure the average particle size range D50.

[0080] (2) Viscosity: NDJ-5S rotational viscometer from Shanghai Nirun Intelligent Technology Co., Ltd. is used;

[0081] (3) Surface tension: BZY-1 surface tension meter produced by Shanghai Hengping Instrument Factory was used to test;

[0082] (4) Curing speed

[0083] Power of UV-LED lamp: electric power 610W; radiation 8W / cm 2 , the lamp distance is about 6mm, and the energy of one trip on the conveyor belt is: 300-600mj / cm 2 . Cured was judged to have been cured by rubbing a finger on the printing surface whereby it was observed that the ink was not smeared or smeared on the surface.

[0084] (5) Pencil hardness test reference standard: GB / T9286-1998

[0085] Using a glass substrate, scrape the ink layer into a thin layer wi...

Embodiment 9-12

[0107] Embodiment 9-12 cyan ink formula table 3:

[0108]

[0109] Manufacture method: adopt the method identical with embodiment 1-4.

[0110] Embodiment 13-16 black ink formula sees table 4:

[0111]

[0112] Manufacture method: adopt the method identical with embodiment 1-4.

[0113] Example 17 and 21-22 spot color purple formula, embodiment 18-20 spot color green formula are shown in Table 5:

[0114]

[0115] Manufacture method: adopt the method identical with embodiment 1-4.

[0116] 3. The performance testing results are shown in Table 6.

[0117]

[0118] 4 Conclusion:

[0119] From the above data, it can be seen that the UV inkjet ink of the present invention does not contain organic solvents and has the characteristics of green environmental protection; the ink can be cured instantly under the irradiation of LED lamps, and the appearance is not sticky, which meets the requirements of fast printing; the ink fluency is good; Moderate hardness, scratch ...

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Abstract

The invention discloses UV-LED cured inkjet ink. The inkjet ink comprises the following components in percentage by weight: 3-15% of a polyester acrylate prepolymer, 3-15% of a polyurethane acrylate prepolymer, 60-80% of an active monomer, 1-5% of a pigment, 3-15% of a photo-initiator, 1-10% of a co-initiator, 1-5% of phosphate, 3-15% of a dispersing agent and 0.1-3% of an auxiliary agent. The provided UV-LED cured inkjet ink does not contain an organic solvent and has the characteristic of green and environment friendliness; the inkjet ink can be instantly cured under the irradiation of an LED lamp, the appearance is not sticky, and the requirement of rapid printing is met; and the inkjet ink is fluent and scratch-resistant, has moderate hardness, can be well attached on a base material,is boiling-resistant, is used for variable data printing of metal cans, and has a wide development prospect.

Description

technical field [0001] The invention belongs to the technical field of inkjet ink, and in particular relates to a UV-LED curing inkjet ink and a preparation method thereof. Background technique [0002] With the progress of society and the development of science and technology, the packaging of food and special chemicals in the food industry and chemical industry needs to take into account the functions of preservation and safety. The original packaging box plus ordinary film can no longer meet the transportation and storage requirements. Moreover, after use, the degradability of the film on the packaging box also determines that such packaging boxes are less and less suitable for the concept of safety and environmental protection in modern society. Therefore, the packaging containers for food, beverages and special chemicals currently on the market are mainly made of metal and glass. Made of two kinds of materials, the glass is fragile, and the metal can packaging material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30C09D11/101
CPCC09D11/30C09D11/101
Inventor 曹雷姚群李国栋李永生王静李栋
Owner LUCKY HUAGUANG GRAPHICS
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