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LED-UV (Light Emitting Diode-Ultraviolet) light source cured nano jet ink and preparation method thereof

A nanometer and inkjet technology, applied in the direction of ink, household utensils, applications, etc., can solve the problems of poor color development, hiding power and weather resistance, few, nozzle clogging, etc., to reduce equipment maintenance costs and reduce clogging of printers The probability of the nozzle and the effect of good toughness

Inactive Publication Date: 2018-05-22
白旭义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, a small number of colleges, research institutions and enterprises in our country have made great efforts to study LED-UV light source curing inkjet. However, unlike the vigorous development of domestic LED-UV printers, LED-UV inkjet consumables mainly rely on imports, and they can truly be independent. There are still few companies that develop and produce high-quality LED-UV light source curing inkjet
The main reason is that the particle size of domestic LED-UV light source curing inkjet pigments is too thick (generally the particle size of the factory is only controlled below 0.5μm, while the products imported from Japan are generally controlled below 100nm), which is easy to cause nozzle blockage; Because the particle size of the pigment is too thick, the domestic LED-UV light source curing inkjet is far inferior to the imported products in terms of color development, hiding power and weather resistance.

Method used

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  • LED-UV (Light Emitting Diode-Ultraviolet) light source cured nano jet ink and preparation method thereof
  • LED-UV (Light Emitting Diode-Ultraviolet) light source cured nano jet ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Add 30 parts of tetrahydrofuran acrylate, 15 parts of hexanediol diacrylate, and 15 parts of tripropylene glycol diacrylate into the container; stir the material with a disc stirrer at a speed of 300 rpm. At the same time, add 1 part of hyperdispersant and continue stirring for 5 minutes; slowly add 1 part of Columbia carbon black Raven 1035, increase the stirring speed to 1200 rpm, and continue stirring for 60 minutes; The mill grinds the mixed material once, and the flow rate is kept at 0.2 liters per minute; the material is ultrasonically oscillated for 60 minutes, and then grinded again; repeated grinding and ultrasonic oscillation 10 times, and the pigment fineness D90≤100nm is detected by a Malvern particle size analyzer;

[0037] (2) Add 10 parts of tetrahydrofuran acrylate, 3 parts of 1-hydroxycyclohexyl phenyl ketone, 1 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide, 1 part of phenyl Bis(2,4,6-trimethylbenzoyl)phosphine oxide and 1 part of Eastman C...

Embodiment 2

[0039] (1) Add 30 parts of tetrahydrofuran acrylate, 15 parts of hexanediol diacrylate, and 15 parts of tripropylene glycol diacrylate into the container; stir the material with a disc stirrer at a speed of 300 rpm. At the same time, add 1 part of hyperdispersant and continue stirring for 5 minutes; slowly add 20 parts of rutile nano-titanium dioxide TTO-55D, increase the stirring speed to 1200 rpm, and continue stirring for 30 minutes; Grind the mixed material once with a type sand mill, and keep the flow rate at 0.4 liters per minute; ultrasonically oscillate the material for 30 minutes, and then grind again; repeat the grinding and ultrasonic vibration 4 times, and use the Malvern particle size analyzer to detect the fineness of the pigment D90≤ 100nm;

[0040](2) Add 10 parts of tetrahydrofuran acrylate, 3 parts of 1-hydroxycyclohexyl phenyl ketone, 1 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide, 1 part of phenyl Bis(2,4,6-trimethylbenzoyl)phosphine oxide and 1 ...

Embodiment 3

[0042] (1) Add 30 parts of tetrahydrofuran acrylate, 15 parts of hexanediol diacrylate, and 15 parts of tripropylene glycol diacrylate into the container; stir the material with a disc stirrer at a speed of 300 rpm. At the same time, add 1 part of hyperdispersant and continue stirring for 5 minutes; slowly add 1 part of C.I.P.B 15:3 phthalocyanine blue pigment, increase the stirring speed to 1200 rpm, and continue stirring for 30 minutes; The turbine sand mill grinds the mixed material once, and the flow rate is kept at 0.2 liters per minute; the material is ultrasonically oscillated for 60 minutes, and then grinded again; repeated grinding and ultrasonic oscillation are repeated 8 times, and the pigment fineness D90 is detected by a Malvern particle size analyzer ≤100nm;

[0043] (2) Add 10 parts of tetrahydrofuran acrylate, 3 parts of 1-hydroxycyclohexyl phenyl ketone, 1 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide, 1 part of phenyl Bis(2,4,6-trimethylbenzoyl)phos...

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PUM

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Abstract

The invention relates to LED-UV (Light Emitting Diode-Ultraviolet) light source cured nano jet ink and a preparation method thereof, relates to consumables of UV ink-jet printers and printers and belongs to the field of digital printing. Ultraviolet light which is emitted by an LED lamp and has fixed wavelength is used for rapidly curing and heating is not needed, so that the energy consumption isonly 10 percent of that of curing realized by a traditional mercury lamp; compared with the traditional mercury lamp, the energy consumption of the curing of the traditional mercury lamp is only 20 percent of that of heating curing; rapid curing is realized and the ink is subjected to cross-linking curing after the ink is initiated by the ultraviolet light and the dispersion fineness D90 of a pigment is less than or equal to 100nm; after the ink is subjected to an accelerated storage stability test for one month, the fineness is not changed, so that the probability that a spraying head of theprinter is blocked is greatly reduced in actual application; the ink is especially sensitive to the ultraviolet light with the wavelength of 395nm and the ink can be cured by low energy; meanwhile, the ink has excellent weather resistance, has an excellent attachment force on base materials including paper sheets, textiles, plastic, wood, ceramic, glass and the like and has good toughness after being cured; the ink has low odor; the viscosity of the ink at 25 DEG C is 10 to 25cp and the lower surface tension of the ink at 25 DEG C is 20 to 35mN / m; the application of the ink to industrial rapid ink jet printing is met.

Description

technical field [0001] The invention relates to a nano-scale inkjet ink cured by LED-UV (light-emitting diode ultraviolet light source) radiation and a preparation method thereof, which is a consumable for UV inkjet printers and printing machines and belongs to the field of digital printing. Background technique [0002] Inkjet is a type of printing ink. Because there are no restrictions on the shape and size of the substrate and it can be automatically controlled by computer, allowing printing to be flexibly customized and digitized, inkjet is also a printing ink with the highest growth rate in market demand in recent years. [0003] The types of inkjet are divided into three types: solvent-based, water-based and solvent-free UV-curable. Among them, the solvent-based inkjet technology is mature and has excellent performance, but the biggest problem is that it contains a large amount of volatile organic solvents, which cause damage to the atmosphere during production and app...

Claims

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Application Information

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IPC IPC(8): C09D11/322C09D11/38
CPCC09D11/322C09D11/38
Inventor 白旭义
Owner 白旭义